Glass fusion method, fusion device, glass processing apparatus, and glass composite

Abstract

Provided in the embodiments of the present application are a glass fusion method, a fusion device, a glass processing apparatus, and a glass composite. The glass fusion method comprises: placing a glass member to be fused into a fusion device, wherein the fusion device has a carrying space for accommodating said glass member; and fusing said glass member. In the glass fusion method provided in the embodiments of the present application, the carrying space of the fusion device is configured to support and limit said glass member, so that said glass member can be adaptively assembled at a high temperature without lamination, thereby achieving final fusion. Even if said glass member is deformed at the high temperature during fusion, said glass member can be fixed by means of an inner wall of the carrying space, so that the fusion device can achieve the effect of shaping said glass member, thereby ensuring the dimensional accuracy of a container formed by said glass member after being fused.

Description

Glass welding methods, welding devices, glass processing equipment, and glass composites

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese patent applications No. 202410739613.0, No. 202410739543.9, No. 202410739543.9, No. 202421303628.4, No. 202421303247.6, and No. 202421303247.6, all of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of glass processing technology, and in particular to a glass welding method, welding apparatus, glass processing equipment, and glass composite. Background Technology

[0004] Currently, glass welding is typically planar welding. This involves first bonding two flat pieces of glass together until they are free of air bubbles, then heat-treating them to fuse them, and finally annealing to cool them down, thus fusing the two pieces of glass into one. In current glass welding technology, the glass assembly step is crucial; without it, the glass cannot be welded, or the weld quality is very poor and weak. When glass welding is three-dimensional, such as T-shaped or cubic structures, the small welding area increases the difficulty of glass assembly, making welding less efficient. Summary of the Invention

[0005] Based on this, embodiments of this application provide a glass welding method, welding device, glass processing equipment, and glass composite. By utilizing the bearing space to provide support and limit for the glass parts to be welded, the glass parts to be welded can be self-adaptively assembled at high temperatures without the need for sheet assembly, and finally achieve welding.

[0006] This application provides a glass welding method, which includes the following steps:

[0007] The glass piece to be welded is placed inside the welding device, which has a supporting space to accommodate the glass piece to be welded;

[0008] The glass components to be welded are then welded.

[0009] In some embodiments, prior to the step of placing the glass piece to be welded in the welding apparatus, the method further includes:

[0010] Multiple glass sub-components are overlapped to form a glass component to be fused, and two adjacent glass sub-components are bonded together by an adhesive component.

[0011] In the step of welding the glass components to be welded, the adhesive component separates from the glass component under high temperature.

[0012] In some implementations, the glass component to be welded is a glass component;

[0013] The glass component to be welded includes multiple glass sub-components, including a first glass sub-component and a second glass sub-component. The first glass sub-component has a first welding surface, and the second glass sub-component has a second welding surface for welding with the first welding surface. The welding device includes multiple contouring components, and a bearing space is defined between the multiple contouring components. The shape of the bearing space is the same as the shape of the glass composite to be welded.

[0014] The welding of the glass components to be welded includes:

[0015] When the first welding surface is in contact with the second welding surface, the glass component to be welded is pressurized and heated simultaneously to achieve welding between the first glass component and the second glass component. The pressure applied to the first welding surface is 0.01 MPa to 0.9 MPa, and the welding temperature is the strain point of the glass component to be welded to the softening point of the glass component to be welded + 100°C.

[0016] In some embodiments, the roughness of both the first and second weld surfaces is less than or equal to 10 μm, and the flatness is less than or equal to 100 μm. The pressure applied to the first weld surface is 0.01 MPa to 0.2 MPa, and the welding temperature is from the strain point to the softening point of the glass component to be welded; or,

[0017] The roughness of the first welding surface and / or the second welding surface is greater than 10 μm, the flatness is greater than 100 μm, the pressure applied to the first welding surface is 0.2 MPa to 0.9 MPa, and the welding temperature is the strain point temperature of the glass to be welded + 50°C to the softening point temperature of the glass to be welded + 100°C.

[0018] In some embodiments, before placing the glass component to be welded in the support space and bringing the first welding surface into contact with the second welding surface, the method further includes: fixing the first welding surface of the first glass component and the second welding surface of the second glass component with glue or tape.

[0019] In the step of pressing and heating the glass piece to be fused, the adhesive or tape is allowed to evaporate.

[0020] In some implementations, there are two first glass components and multiple second glass components. The multiple second glass components also have a third welding surface and a fourth welding surface. The third welding surface is disposed opposite to the second welding surface, and the fourth welding surface is in contact with both the second welding surface and the third welding surface.

[0021] In the step of placing the glass components to be welded within the bearing space, the first welding surface of one of the first glass components contacts the second welding surfaces of a plurality of second glass components, the first welding surface of another first glass component contacts the third welding surfaces of a plurality of second glass components, and the fourth welding surfaces of two adjacent second glass components contact each other, so that the glass composite is a hollow polyhedral glass.

[0022] In some embodiments, a through hole is provided on the first welding surface of one of the first glass sub-components, and a through hole is also provided at the corresponding position of a support member supporting the first glass sub-component. In the step of pressing and heating the glass component to be welded, air is also circulated into the glass composite through the through hole, and the air pressure is 0.001 MPa to 0.6 MPa lower than the pressure applied to the first welding surface.

[0023] Optionally, the ventilation pressure is 0.05 MPa to 0.4 MPa lower than the pressure applied to the first welded surface.

[0024] In some implementations, the ventilation pressure is 15 kPa to 800 kPa;

[0025] Optionally, the ventilation pressure is 30 kPa to 500 kPa.

[0026] In some implementation schemes, the introduced gas includes one or more of nitrogen, argon, hydrogen, and air.

[0027] In some implementation schemes, the welding time is 1 minute to 10 hours;

[0028] Optionally, the welding time is 30 minutes to 3 hours.

[0029] In some embodiments, the absolute value of the difference between the coefficient of thermal expansion of the welding device and the coefficient of thermal expansion of the glass component to be welded does not exceed 50% of the coefficient of thermal expansion of the glass component to be welded;

[0030] Optionally, the absolute value of the difference between the coefficient of thermal expansion of the welding device and the coefficient of thermal expansion of the glass piece to be welded does not exceed 30% of the coefficient of thermal expansion of the glass piece to be welded.

[0031] This application provides a welding device for use in any embodiment of the glass welding method described in this application, wherein the welding device includes:

[0032] A fixed component is formed to have a support space for accommodating the glass component to be fused. When the glass component to be fused is located in the support space, the outer wall of the glass component to be fused is in contact with the inner wall of the support space.

[0033] In some embodiments, the fixing component also forms a clearance space communicating with the bearing space, wherein when the glass piece to be welded is located within the bearing space, the adhesive is located within the clearance space.

[0034] In some implementations, the fixing component includes a plurality of contoured parts, all of which surround the bearing space, and all of the contoured parts correspond one-to-one with all of the glass sub-parts, with each contoured part capable of fitting against the surface of the corresponding glass sub-part.

[0035] At least one of the conforming members can press the corresponding glass sub-piece.

[0036] In some embodiments, the plurality of glass components include a bottom glass component, a top glass component, and two side glass components, the two side glass components being spaced apart from the bottom glass component along a first direction, and the top glass component overlapping the two side glass components at one end away from the bottom glass component in a second direction, the second direction intersecting the first direction;

[0037] The plurality of contouring components include a top contouring component, a bottom contouring component, and two side contouring components. The two side contouring components are arranged at intervals along the first direction and correspond to the two side glass sub-components respectively. The bottom contouring component is provided with the bottom glass sub-component, and the top contouring component is located on the side of the top glass sub-component away from the bottom glass sub-component.

[0038] In this embodiment, at least one of the side profile members can press against the corresponding side glass component along the second direction.

[0039] In some embodiments, each of the side glass components is provided with adhesive members at both ends opposite to each other in the first direction, and the adhesive members have adhesive surfaces that are bonded to the side glass component and the corresponding side profile component, and the adhesive surfaces are perpendicular to the second direction.

[0040] In some embodiments, the side profile is provided with clearance holes and / or clearance grooves on the side surface that abuts against the corresponding side glass component, and the adhesive is located in the clearance holes and / or clearance grooves.

[0041] In some embodiments, the fixing assembly further includes two connectors and two clamping members, the two connectors being located on the side of each of the side profiles away from the glass piece to be welded, each connector extending longitudinally along the second direction and having its two ends connected to the bottom profile and the top profile, respectively.

[0042] Each of the side profile members has a guide ramp on the side away from the bearing space. The guide ramp intersects with the second direction. Each clamping member abuts between one of the guide ramps and the nearest connecting member.

[0043] In some embodiments, the clamping element is a cylinder, and the axial direction of the clamping element is parallel to the guide slope.

[0044] In some embodiments, the fixing assembly includes a bearing assembly, a plurality of side profiles and a plurality of clamping members, wherein the plurality of side profiles are mounted on the bearing assembly and form a bearing space for accommodating the glass piece to be welded, and the surface of each of the side profiles can fit against the circumferential sidewall of the glass piece to be welded;

[0045] Multiple clamping elements correspond one-to-one with multiple side profile elements. Each clamping element is disposed between the corresponding side profile element and the bearing assembly, and is used to apply a preload force to the corresponding side profile element toward the bearing space.

[0046] In some embodiments, the support assembly includes a base, a top seat, and a plurality of connectors. The base and the top seat are spaced apart along a second direction. All of the side profiles are disposed between the base and the top seat. The plurality of connectors are spaced apart around the support space. The two ends of each connector are respectively connected to the base and the top seat. Each clamping member is disposed between at least one connector and the corresponding side profile.

[0047] In some embodiments, each of the side profiles is provided with a guide ramp on the side away from the bearing space, and the guide ramp intersects with the second direction;

[0048] Each of the connectors extends longitudinally along a second direction, and each of the clamping members abuts between the guide ramp of the corresponding clamping member and the connector.

[0049] In some embodiments, the clamping element is a cylinder, and the axial direction of the clamping element is parallel to the guide slope.

[0050] In some embodiments, the fixing component further includes a bottom profile that is mounted on the base and can conform to the bottom surface of the glass piece to be welded.

[0051] In some embodiments, the fixing component further includes a top profiler placed on top of the glass piece to be welded, and the top profiler abutting against the top surface of the glass piece to be welded.

[0052] In some embodiments, the welding device further includes a lifting member mounted on the support assembly;

[0053] The glass component to be fused has an opening communicating with the interior, and the lifting component can enter the interior of the glass component to be fused through the opening and abut against the top of the glass component to be fused.

[0054] In some embodiments, the lifting member is configured to apply a lifting force to the top of the glass piece to be welded toward the top profiler.

[0055] In some embodiments, the fixing component further includes a fixing member and a weight. The fixing member is mounted on the bearing component, the middle part of the lifting member is pivotally mounted on the fixing member, the weight is mounted on one end of the lifting member in the longitudinal direction, and the other end of the lifting member extends into the interior of the glass piece to be fused through the opening and abuts against the top of the glass piece to be fused.

[0056] In some implementations, the glass component to be welded has an opening communicating with its own interior;

[0057] The fixing component includes:

[0058] An air inlet is connected to the bearing space and faces the opening;

[0059] An air extraction port is connected to the carrying space and is located away from the opening.

[0060] In some embodiments, the fixing component includes a top profiler, a side profiler, a diverter, and a bottom profiler. The side profiler and the diverter are disposed at one end in a second direction on the bottom profiler, and the top profiler is disposed at the other end of the side profiler and the diverter in the second direction. The top profiler, the side profiler, the diverter, and the bottom profiler surround and form the bearing space.

[0061] The top and bottom contouring parts are respectively attached to the two ends of the glass piece to be welded in the second direction. The diverter is attached to the circumferential sidewall of the glass piece to be welded. The diverter faces the opening and is provided with the air inlet. The bottom contouring part is provided with the air extraction port.

[0062] In some embodiments, the fixing component further includes a carrier member having a receiving cavity and a receiving opening communicating with the receiving cavity, the top contouring member being mounted on the carrier member and covering the receiving opening, and the side contouring member, the diverting member and the bottom contouring member being disposed within the receiving cavity.

[0063] In some implementations, the top profile can be engaged with the carrier.

[0064] In some embodiments, the fixing assembly further includes a clamping member disposed on the side of the side profile away from the diverter and capable of applying a preload force to the side profile toward the diverter.

[0065] In some embodiments, the side profile is provided with a guide slope, which is inclined relative to the second direction, and the clamping member abuts against the guide slope and the bearing member respectively.

[0066] In some embodiments, the clamping member is further provided with a contact slope, which is parallel to the guide slope and abuts against each other.

[0067] In some embodiments, the top contouring component is provided with an air inlet, and the top contouring component, the carrier component, and the diverter component are all provided with interconnected gas channels. The gas channels on the top contouring component are connected to the air inlet, and the gas channels on the diverter component are connected to the inflation port.

[0068] In some embodiments, the glass component to be welded includes a top glass component, a bottom glass component, and a plurality of side glass components. The top glass component and the bottom glass component are respectively disposed at both ends of all the side glass components in a second direction. The plurality of side glass components are connected in sequence and arranged around the top glass component and the bottom glass component. An opening is formed between the first side glass component and the last side glass component.

[0069] The side profile is provided in multiple parts, which are connected in sequence and correspond one-to-one with the side glass sub-parts. The surface of each side profile matches and adheres to the surface of the corresponding side glass sub-part.

[0070] This application provides a glass processing apparatus, including a welding device as described in any embodiment of this application. This application also provides a glass composite, prepared using the glass welding method described in any embodiment of this application.

[0071] The glass welding method provided in this application utilizes the bearing space of the welding device to provide support and restraint for the glass pieces to be welded, enabling the glass pieces to self-assemble at high temperatures without the need for sheet assembly, ultimately achieving welding. Even if the glass pieces deform due to high temperatures during the welding process, they can be fixed by the inner wall of the bearing space, allowing the welding device to have a shaping effect on the glass pieces and ensuring the dimensional accuracy of the container formed after welding. Attached Figure Description

[0072] Figure 1 is a schematic diagram of the process flow of the glass welding method provided in the first embodiment of this application;

[0073] Figure 2 is a schematic diagram of the process flow of the glass welding method provided in the second embodiment of this application;

[0074] Figure 3 is a schematic diagram of the process flow of the glass welding method provided in the third embodiment of this application;

[0075] Figure 4 is a schematic diagram of the welding device provided in the fourth embodiment of this application;

[0076] Figure 5 is an exploded view of the glass component to be welded in the structure shown in Figure 4.

[0077] Figure 6 is a schematic diagram of the structure of the glass parts to be welded in the structure shown in Figure 5 after being bonded by the adhesive.

[0078] Figure 7 is a schematic diagram of the structure shown in Figure 5 after the glass parts to be fused have been fused, causing the adhesive to detach.

[0079] Figure 8 is a structural schematic diagram of the welding device provided in the fifth embodiment of this application;

[0080] Figure 9 is an exploded view of the welding device in the structure shown in Figure 8;

[0081] Figure 10 is a schematic diagram of the glass component to be fused in the structure shown in Figure 8;

[0082] Figure 11 is an exploded view of the glass component to be fused in the structure shown in Figure 10.

[0083] Figure 12 is a schematic diagram of the welding device provided in the sixth embodiment of this application;

[0084] Figure 13 is a schematic diagram of the glass component to be fused in the structure shown in Figure 12;

[0085] Figure 14 is an exploded view of the glass component to be fused in the structure shown in Figure 13.

[0086] Figure 15 is a schematic diagram of the structure of the glass piece to be welded placed in front of the welding device according to the seventh embodiment of this application;

[0087] Figure 16 is a schematic diagram of the structure of the glass component to be welded provided in the embodiment of this application, placed in the welding device shown in Figure 15;

[0088] Figure 17 is a schematic diagram of the structure of the glass piece to be welded placed in front of the welding device according to the eighth embodiment of this application;

[0089] Figure 18 is a schematic diagram of the structure of the glass component to be welded provided in the embodiment of this application, placed in the welding device shown in Figure 17;

[0090] Figure 19 shows the weld interface of the T-shaped glass in Example 1 of this application as observed under a microscope at 5x magnification;

[0091] Figure 20 is an interface diagram of the welded surface observed under a microscope after the T-shaped glass of Example 1 in the experiment of this application was placed in an ultrasonic device and ultrasonically vibrated at 600W power for 12 hours.

[0092] Figure 21 shows the weld interface of the glass composite prepared by the glass welding method of Comparative Example 3 in the experiment of this application after ultrasonic vibration under a 5x microscope.

[0093] Figure 22 shows the weld interface of the T-shaped glass prepared in Example 2 of this application as observed under a microscope at 5x magnification. Detailed Implementation

[0094] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0095] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0096] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0097] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0098] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0099] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0100] The terms "optionally" and similar expressions used in this application refer to embodiments of this application that may provide certain beneficial effects under certain circumstances. However, other embodiments may also be optional in the same or other circumstances. Furthermore, the description of one or more optional embodiments does not imply that other embodiments are unavailable, nor is it intended to exclude other embodiments from the scope of this application.

[0101] When a numerical range is disclosed in this application, the range is considered continuous and includes the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when the range refers to an integer, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be merged. In other words, unless otherwise specified, all ranges disclosed in this application should be understood to include any and all subranges to which they are included.

[0102] In this application, the technical features described in an open-ended manner include both closed technical solutions consisting of the listed features and open technical solutions that include the listed features.

[0103] The terms "comprising" and "having," and any variations thereof, used in the embodiments of this application, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to such processes, methods, products, or devices.

[0104] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0105] In this application, "A is B to C" means that A is within the range of B and less than or equal to C. For example, "pressure is 0.01MPa to 0.9MPa" means that the pressure is within the range of 0.01MPa to 0.9MPa. "welding temperature is the strain point of the glass to the softening point of the glass + 100℃" means that the welding temperature is within the temperature range of the strain point of the glass and less than or equal to the softening point of the glass + 100℃.

[0106] In this application, "strain point" refers to the temperature at which the glass viscosity is 1014.5 dPa·s, which is the temperature at which the internal stress of the glass can be substantially eliminated within a few hours, also known as the lower limit temperature of glass annealing.

[0107] In this application, "softening point" refers to the temperature at which the glass viscosity is 107.6 Pa·s.

[0108] Please refer to Figure 1. This application provides a glass welding method, which includes the following steps:

[0109] S30: Place the glass piece to be welded into the welding device.

[0110] The welding device has a support space to accommodate the glass pieces to be welded. In other words, when the glass pieces to be welded are located in the support space, the inner wall of the support space can at least provide support and limit the glass pieces to be welded.

[0111] For example, the outer wall of the glass component to be welded is fitted to the inner wall of the bearing space.

[0112] For example, the welding device includes a plurality of profiles that define a carrying space between them.

[0113] S50: Weld the glass components to be welded.

[0114] It should be noted that the welding method is not limited. For example, only the glass components to be welded within the supporting space can be heated, allowing them to be welded under high-temperature conditions. Another example is that while heating the glass components within the supporting space, pressure can be applied to one of the glass sub-components, allowing them to be welded under both high temperature and pressure conditions. Yet another example is that while heating the glass components within the supporting space, gas can be injected into the interior of the glass components to be welded, creating a high-pressure environment inside.

[0115] After the glass components to be fused are fused, a glass composite is formed. In other words, the shape of the bearing space is the same as the shape of the glass components to be fused and the glass composite to be fused.

[0116] The glass welding method provided in this application utilizes the bearing space of the welding device to provide support and restraint for the glass pieces to be welded, enabling the glass pieces to self-assemble at high temperatures without the need for sheet assembly, ultimately achieving welding. Even if the glass pieces deform due to high temperatures during the welding process, they can be fixed by the inner wall of the bearing space, allowing the welding device to have a shaping effect on the glass pieces and ensuring the dimensional accuracy of the container formed after welding.

[0117] It should be noted that the welding device can also be called a mold. The supporting space can also be called the accommodating space, welding space, or welding cavity.

[0118] This application also provides a glass composite that can be prepared using the glass welding method provided in any embodiment of this application.

[0119] In some embodiments, referring to Figure 2, the glass welding method further includes step S10 before step S30:

[0120] Multiple glass components are overlapped to form a glass component to be fused, and two adjacent glass components are bonded together using adhesives.

[0121] During the welding process of glass components, the bonding component separates from the glass component under high temperature.

[0122] For example, the glass components have fusion surfaces. During the process of overlapping multiple glass components to form a glass component to be fused, the fusion surfaces of every two adjacent glass components are in contact with each other. After the adhesive bondes two adjacent glass components, the contact between the fusion surfaces of the two glass components is more stable, and it is also easier to achieve better fusion of the fusion surfaces of the two glass components during the fusion process.

[0123] In some embodiments, when the adhesive is used to bond two adjacent glass sub-components, the adhesive must avoid the area where the fusion surface is located.

[0124] For example, the adhesive could be tape, which can be evaporated and removed during a subsequent heating step.

[0125] In other embodiments, the adhesive can also be glue. In this embodiment, glue is used to bond the fusion surfaces of two adjacent glass components. The glue can be evaporated and removed during a subsequent heating step.

[0126] The adhesive can also be of other types, as long as it can bond two adjacent glass sub-pieces.

[0127] Specifically, referring to Figures 4, 5, and 6, the glass component 40 to be fused is formed by overlapping at least two glass sub-components 41. For example, the at least two glass sub-components 41 include a bottom glass sub-component 411, a top glass sub-component 412, and two side glass sub-components 413, as described below. In step S10 of the glass fusion method, an adhesive member 20 is bonded to the overlap of each pair of adjacent glass sub-components 41. The adhesive member 20 bonds the two adjacent glass sub-components 41 to reinforce the overlap of each glass sub-component 41, so that the glass component 40 to be fused, together with the adhesive member 20, forms a relatively stable structure, as shown in Figure 6.

[0128] The adhesive 20 can separate from the glass component 40 to be fused under high temperature. That is, the adhesive used for bonding on the adhesive 20 can be of the type that loses its adhesiveness or evaporates directly under high temperature, so that the adhesive 20 loses its bonding effect. The fusion process of the glass component 40 to be fused is to melt each glass component 41 under high temperature, so that the contact parts of each glass component 41 form a whole. Therefore, during the fusion process of the glass component 40 to be fused, the adhesive 20 is separated from the glass component 40 to be fused under high temperature, and the glass component 40 to be fused forms the container shown in Figure 7.

[0129] The above-mentioned glass welding method reinforces the overlapping joints of the glass sub-pieces 41 with the adhesive 20, so that the glass sub-pieces 40 to be welded and the adhesive 20 form a relatively stable structure, ensuring the stability of the glass sub-pieces 40 during the welding process. Under the high temperature during welding, the adhesive 20 will automatically detach from the glass sub-pieces 40 to be welded. The product formed after the glass sub-pieces 40 to be welded will not carry the adhesive 20. Compared with the traditional method of splicing structural components using beams or mortise and tenon structures, fixing the overlapping glass sub-pieces 41 with the adhesive 20 eliminates the need for additional splicing structure processing. After the welding is completed, there is no need for secondary operation to remove the adhesive 20, which effectively saves processing steps and reduces the production cost of the product.

[0130] In some embodiments, step S50 specifically includes:

[0131] S510a: After placing the glass parts to be welded into the welding device, place the welding device into the sintering furnace. Use the incremental mode of the sintering furnace to raise the temperature to 200-400℃ for 2 hours in the first stage, and hold the pressure for 2 hours to ensure uniform heat conduction and complete the initial heating.

[0132] S520a: The second stage of the sintering furnace is heated slowly at 450-750℃ for 5 hours, and then held at pressure for 30 minutes.

[0133] S530a: After pressure holding, it can be protected by filling with gas. After cooling to below 80°C, the glass parts to be fused can be removed, and finally the required container or glass composite is obtained.

[0134] In some embodiments, please refer to Figures 16 and 18. The glass component 40 to be welded includes a plurality of glass sub-components 41. The plurality of glass sub-components 41 include a first glass sub-component 41a and a second glass sub-component 41b. The first glass sub-component 41a has a first welding surface, and the second glass sub-component 41b has a second welding surface.

[0135] In some embodiments, the first glass component 41a can be one, two, three, or more than three. The second glass component 41b can be one, two, three, or more than three. For example, there is one first glass component 41a and one second glass component 41b, and the first glass component 41a and the second glass component 41b are fused together to form a T-shaped glass or an L-shaped glass. Alternatively, there is one first glass component 41a and two second glass components 41b, and the first glass component 41a and the second glass component 41b are fused together to form a U-shaped glass, etc. Alternatively, there are two first glass components 41a and multiple second glass components 41b, and the first glass component 41a and the second glass component 41b are fused together to form a polyhedral glass, such as a hexahedral glass.

[0136] In some embodiments, the first glass component 41a and the second glass component 41b are made of the same material.

[0137] In some embodiments, the shapes of the first glass component 41a and the second glass component 41b may be the same or different, and the specific shape can be selected according to the shape of the glass composite to be fused.

[0138] In some embodiments, the thickness of both the first glass sub-component 41a and the second glass sub-component 41b is greater than 1 mm. For example, the thickness of the first glass sub-component 41a and the second glass sub-component 41b may be, but is not limited to, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, or any combination of these values.

[0139] It is understood that the first glass component 41a and the second glass component can be vertically welded, or they can be welded at a certain angle; no particular limitation is made here. The first welding surface can be the surface with the larger area of ​​the first glass component 41a, and the second welding surface can be the surface with the smaller area of ​​the second glass component 41b (such as the side). The above glass welding method enables the welding of two glass components with smaller welding areas.

[0140] For example, step S50 specifically includes:

[0141] S510b: When the first welding surface is in contact with the second welding surface, the glass component to be welded is pressurized and heated at the same time to achieve welding between the first glass component and the second glass component. The pressure applied to the first welding surface is 0.01MPa to 0.9MPa, and the welding temperature is the strain point of the glass component to be welded to the softening point of the glass component to be welded +100℃.

[0142] In some embodiments, the pressure applied to the first welding surface is 0.01 MPa to 0.9 MPa. For example, the pressure applied to the first welding surface may be, but is not limited to, 0.01 MPa, 0.05 MPa, 0.1 MPa, 0.2 MPa, 0.3 MPa, 0.4 MPa, 0.5 MPa, 0.6 MPa, 0.7 MPa, 0.8 MPa, 0.9 MPa, or any range of two of these values. Optionally, the pressure applied to the first welding surface is 0.1 MPa to 0.6 MPa. Under the above pressure, it is possible to ensure that the glass can adaptively conform to the welding surface, thereby improving the welding effect.

[0143] In some embodiments, the welding temperature is related to the material properties of the glass components to be welded. Specifically, the welding temperature is the strain point of the glass component to be welded up to its softening point +100°C. For example, if the strain point temperature of the glass component to be welded is 550°C and the softening point temperature is 770°C, the selectable welding temperature range is 560°C to 790°C.

[0144] In some embodiments, the welding time is 1 min to 10 h. For example, the welding time may be, but is not limited to, 1 min, 10 min, 30 min, 1 h, 2 h, 4 h, 6 h, 8 h, 10 h, or any range of these values. Optionally, the welding time is 0.5 h to 3 h. The specific welding time can be adjusted according to the welding temperature, ensuring that the glass does not undergo significant deformation during welding.

[0145] The welding temperature, welding time, and welding pressure are the three main parameters for controlling glass welding and also affect the deformation of the glass during welding. In some embodiments, the deformation of the glass to be welded during the welding process is less than 1 mm. Optionally, the deformation of the glass to be welded during the welding process is controlled within 0.1 mm. Controlling the deformation helps to ensure welding accuracy.

[0146] In some embodiments, the step of simultaneously pressurizing and heating the glass components to be fused to achieve fusion between the first and second glass components includes: applying pressure to the fusion device at the fusion temperature and maintaining the temperature for a period of time to achieve fusion between the first and second glass components, followed by cooling and annealing. It is understood that in embodiments where the fusion method involves simultaneously pressurizing and heating the glass components to be fused, pressure must be maintained during the isothermal fusion stage. The pressure can be applied during the heating or isothermal stage, and can be removed or maintained during the cooling stage. There are no particular limitations on the heating and cooling rates of the fusion process; any rate commonly used in the art can be applied.

[0147] In some embodiments, during the cooling annealing step, the glass parts to be welded can be cooled and annealed together with the welding device. The cooling rate is, for example, 0.1°C / min to 20°C / min, which can be adjusted according to residual thermal stress. Alternatively, the glass can be annealed separately after demolding. Cooling annealing can enhance the overall strength of the welded glass, prevent glass breakage, and improve the welding yield.

[0148] In some embodiments, the roughness of both the first and second welding surfaces is less than or equal to 10 μm, and the flatness is less than or equal to 100 μm. The pressure applied to the first welding surface is 0.01 MPa to 0.2 MPa, and the welding temperature is the strain point to the softening point of the glass pieces to be welded. Using the above glass welding method, under the aforementioned roughness and flatness of the first and second welding surfaces, although no sheets are joined, the glass can undergo slight deformation (<3 mm) under high temperature and pressure, allowing it to adaptively adhere to each other, achieving assembly welding with a welding area >80%. Furthermore, the aforementioned roughness and flatness also improve the problems of bubbles and gaps after welding.

[0149] In other embodiments, the roughness of the first and / or second welding surfaces is greater than 10 μm, and the flatness is greater than 100 μm. The pressure applied to the first welding surface is 0.2 MPa to 0.9 MPa, and the welding temperature is the strain point temperature of the glass to be welded + 50°C to the softening point temperature of the glass to be welded + 100°C. For cases where the glass welding surface roughness Ra > 10 μm and flatness > 100 μm, at least partial welding can be achieved by increasing the welding temperature and pressure, with a welding area > 40%. Furthermore, increasing the welding temperature and pressure can reduce bubbles and gaps generated after welding, improving the welding effect.

[0150] In some embodiments, heating is performed under a protective atmosphere. The protective atmosphere includes, but is not limited to, one or more of nitrogen, hydrogen, and argon. Performing the heating under such a protective atmosphere is beneficial for improving the lifespan of the welding device. It is understood that in other embodiments, heating may also be performed in an air atmosphere protected by refractory materials, in which case the lifespan of the welding device may be reduced.

[0151] It should be understood that although the steps in the flowcharts shown in Figures 1, 2 and 3 are displayed sequentially according to the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise explicitly stated in this document, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in Figure 1 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. Their execution order is not necessarily sequential, but can be performed in turn or alternately with at least some of other steps or other sub-steps or stages.

[0152] Referring to Figure 4, a welding device provided in one embodiment of this application is applied to the glass welding method described above. The welding device includes a fixing component 10, which forms a bearing space 10a. The bearing space 10a is used to accommodate the glass piece 40 to be welded. When the glass piece 40 to be welded is located in the bearing space 10a, the outer surface of the glass piece 40 to be welded is in contact with the inner wall of the bearing space 10a. Even if the glass piece 40 to be welded deforms due to high temperature during the welding process, it can still be fixed by the inner wall of the bearing space 10a. This allows the welding device to have a shaping effect on the glass piece 40 to be welded, ensuring the dimensional accuracy of the container formed after the glass piece 40 to be welded is welded.

[0153] Furthermore, embodiments of this application provide a glass processing apparatus, including the welding device provided in any embodiment of this application.

[0154] In some embodiments, the absolute value of the difference between the coefficient of thermal expansion of the welding device and the coefficient of thermal expansion of the glass to be welded does not exceed 50% of the coefficient of thermal expansion of the glass to be welded. Optionally, the absolute value of the difference between the coefficient of thermal expansion of the welding device and the coefficient of thermal expansion of the glass to be welded does not exceed 30% of the coefficient of thermal expansion of the glass to be welded.

[0155] In some embodiments, the welding device is made of graphite. Graphite is heat-resistant and does not easily adhere to the glass parts to be welded at high temperatures. Specifically, the coefficient of thermal expansion of the welding device is 3×10⁻⁶ / ℃ to 13×10⁻⁶ / ℃, and the coefficient of thermal expansion of the glass parts to be welded is 1×10⁻⁶ / ℃ to 15×10⁻⁶ / ℃.

[0156] It is understood that the welding device is not limited to graphite; it can also be ceramic or a substrate plus a coating. Specifically, the welding device can also be silicon carbide ceramic or silicon nitride ceramic, or the welding device includes a tungsten carbide substrate and a protective film disposed on the surface of the tungsten carbide substrate, and the protective film can be a tantalum-tungsten alloy.

[0157] It is understandable that the structure of the welding device can be adjusted according to the shape of the glass composite to be welded.

[0158] In some embodiments, the fixing component 10 also forms a clearance space 10b that communicates with the bearing space 10a. When the glass piece 40 to be welded is located in the bearing space 10a, the adhesive 20 is located in the clearance space 10b. Since the outer wall of the glass piece 40 to be welded needs to be in contact with the inner wall of the bearing space 10a, the adhesive 20 is placed in the clearance space 10b to avoid the adhesive 20 affecting the adhesion effect between the glass piece 40 to be welded and the inner wall of the bearing space 10a.

[0159] In some embodiments, the fixing component 10 includes a plurality of contouring parts 11, such as the top contouring part 111, the bottom contouring part 112, and the side contouring part 113 as described below. The plurality of contouring parts 11 correspond one-to-one with a plurality of glass sub-parts 41. Each contouring part 11 can fit against the surface of the corresponding glass sub-part 41 so as to fix the surface of the corresponding glass sub-part 41 by means of the contouring part 11, thereby preventing the surface of the glass sub-part 41 from deforming due to high temperature.

[0160] In actual use, the surface of the glass component 41 often has different shapes. During the welding process, the high temperature will not only cause the glass component 41 to expand and deform, but also cause the shape or pattern on the glass component 41 to melt and deform. The conforming part 11 can only prevent the glass component 41 from expanding and deforming when it is attached to the surface of the corresponding glass component 41, but cannot prevent the shape of the glass component 41 from melting and deforming.

[0161] Therefore, at least one profiler 11 can press the corresponding glass sub-part 41, so that even if the surface shape of the glass sub-part 41 melts and deforms due to high temperature, it can be recast into the required shape on the glass sub-part 41 by the pressed profiler 11, so that the overall size and shape of the glass sub-part 41 will not change significantly after fusion.

[0162] Specifically, in the embodiments shown in Figures 4 and 5, the plurality of glass components 41 include a bottom glass component 411, a top glass component 412, and two side glass components 413. The two side glass components 413 are spaced apart from the bottom glass component 411 along a first direction D1. The top glass component 412 overlaps the two side glass components 413 at the end away from the bottom glass component 411 in a second direction D2. The second direction D2 intersects with the first direction D1, that is, a square structure is formed by the overlap of the bottom glass component 411, the top glass component 412, and the two side glass components 413.

[0163] Multiple contouring components 11 include a top contouring component 111, a bottom contouring component 112, and two side contouring components 113. The two side contouring components 113 are arranged at intervals along the first direction D1 and correspond to two side glass sub-components 413 respectively. The bottom contouring component 112 is provided with a bottom glass sub-component 411. The top contouring component 111 is located on the side of the top glass sub-component 412 away from the bottom glass sub-component 411, so that the top contouring component 111, the bottom contouring component 112, and the side contouring components 113 enclose and form a bearing space 10a.

[0164] Each side profile 113 can press against its corresponding side glass component 413, thereby fixing the shape of the two side glass components 413 by means of the two side profiles 113, and preventing the surface of the side profile 113 from being deformed. In other embodiments, only one side profile 113 may press against its corresponding side glass component 413. When one side glass component 413 is pressed, the pressing force can be transmitted to the other side glass component 413 through the top glass component 412 or the bottom glass component 411, so that the other side glass component 413 can also press against the corresponding side profile 113 and be fixed by the corresponding side profile 113.

[0165] It should be noted that the top glass component 412 can also be referred to as the top plate or upper cover. The bottom glass component 411 can also be referred to as the bottom plate or lower cover. The side glass component 413 can also be referred to as the side plate or independent component.

[0166] It should be noted that the top profile part 111 can also be referred to as the upper profile part or the cover plate. The bottom profile part 112 can also be referred to as the lower profile part or the static pressure part. The side profile part 113 can also be referred to as the side profile part.

[0167] Optionally, the top glass component 412, the bottom glass component 411, and the side glass component 413 are all glass components. The thickness of the top glass component 412 and the bottom glass component 411 is between 0.3mm and 10mm. The adhesive component 20 is also a glass component, with a thickness greater than 1.5 to 3 times the thickness of the bottom glass component 411 or the top glass component 412, a width greater than the thickness of the bottom glass component 411 or the top glass component 412, and a length between 5mm and 15mm. The adhesive component 20 is bonded using a low-temperature adhesive.

[0168] In some specific embodiments, each side glass component 413 is provided with an adhesive component 20 at both ends opposite to each other in the first direction D1, and the adhesive component 20 has an adhesive surface 21. The adhesive surface 21 is bonded to the side of the side glass component 413 that abuts against the corresponding side contour component 113, and the adhesive surface 21 is perpendicular to the second direction D2. When the side profile 113 presses against the side glass component 413, the pressing force acts on the side glass component 413 in the direction of the second direction D2. In order to prevent the side glass component 413 from being pushed by the pressing force, the adhesive component 20 also needs to apply an adhesive force to the side glass component 413 so that the side glass component 413 remains connected to the adhesive component 20. For this purpose, the adhesive surface 21 of the adhesive component 20 is perpendicular to the second direction D2, so that the adhesive force applied by the adhesive component 20 to the side glass component 413 is also in the second direction D2, thus ensuring the bonding effect between the adhesive component 20 and the side glass component 413.

[0169] Furthermore, to avoid interference between the adhesive 20 and the side profile 113, a clearance groove 1132 is provided on the side surface of the side profile 113 that abuts against the corresponding side glass sub-part 413. When the side profile 113 abuts against the corresponding side glass sub-part 413, the adhesive 20 on the side glass sub-part 413 is located in the clearance groove 1132, that is, a clearance space 10b is formed in the clearance groove 1132. When the adhesive 20 falls off the part to be melted due to high temperature, the adhesive 20 will fall into the clearance groove 1132 and be stored in the clearance groove 1132.

[0170] In some other embodiments, a clearance hole 1131 is provided on the surface of the side of the side profile 113 that abuts against the corresponding side glass component 413. When the side profile 113 abuts against the corresponding side glass component 413, the adhesive 20 on the side glass component 413 is located in the clearance hole 1131, that is, a clearance space 10b is formed in the clearance hole 1131. When the adhesive 20 falls off the glass component 30 to be fused due to high temperature, the adhesive 20 will fall into the clearance hole 1131 and be stored in the clearance hole 1131.

[0171] Specifically, in the embodiment shown in Figure 4, a clearance groove 1132 is provided at one end of the side profile 113 near the top profile 111, and a clearance hole 1131 is provided at one end of the side profile 113 near the bottom profile 112. It is understood that in some other embodiments, clearance grooves 1132 or clearance holes 1131 may be provided at both ends of the side profile 113, which is not limited here.

[0172] In some embodiments, in order to achieve the pressing of the side profile 113 onto the side glass component 413, the fixing assembly 10 further includes two first connectors 12 and two pressing members 13. The two first connectors 12 are respectively located on the side of each side profile 113 away from the glass component 40 to be welded. Each first connector 12 extends longitudinally along the second direction D2, and its two ends are respectively connected to the bottom profile 112 and the top profile 111. That is, the bottom profile 112 and the top profile 111 are connected to form a whole through the first connectors 12, thereby improving the overall stability of the bottom profile 112, the top profile 111 and the first connectors 12.

[0173] Each side profile 113 has a guide ramp 1133 on the side away from the bearing space 10a. The guide ramp 1133 intersects the second direction D2. Each clamping member 13 abuts against one of the guide ramps 1133 and the nearest first connecting member 12. When the welding device is working, the second direction D2 is parallel to the direction of gravity. Under the action of gravity, the clamping member 13 falls along the guide ramp 1133 until it abuts against the first connecting member 12. At this time, the weight of the clamping member 13 is entirely applied to the guide ramp 1133, and finally transforms into a horizontal pressure applied to the side profile 113, so that the side profile 113 can press the corresponding side glass piece 413.

[0174] It should be noted that the pressure applied horizontally by the clamping member 13 to the side profile member 113 can also be referred to as the preload applied by the clamping member 13 to the side profile member 113 toward the bearing space 10a.

[0175] It is understood that in other embodiments, the clamping member 13 can also be an elastic member such as a spring. By placing the spring between the first connecting member 12 and the side profile member 113 and making the spring in a compressed state, a certain pressure can also be applied to the side profile member 113 by the spring, so that the side profile member 113 can clamp the glass piece 40 to be welded.

[0176] Furthermore, the clamping member 13 is a cylinder, and the axial direction of the clamping member 13 is parallel to the guide slope 1133. When the clamping member 13 is placed on the guide slope 1133, the side of the cylinder is tangent to the surface of the guide slope 1133, which reduces the contact area between the clamping member 13 and the guide slope 1133, thereby making the rolling of the clamping member 13 smoother.

[0177] In some embodiments, the glass component 40 to be welded further includes a rear substrate 414, which abuts against one end of the bottom glass component 411, the top glass component 412, and each side glass component 413 in a third direction. The third direction, the first direction D1, and the second direction D2 intersect each other but are not coplanar. That is, the rear substrate 414, the top glass component 412, the bottom glass component 411, and the two side glass components 413 overlap each other to form a five-sided closed cuboid structure.

[0178] The welding device also includes a rear profiler (not shown in the figure), which is mounted on the bottom profiler 112 and fits against the side of the rear substrate 414 away from the side glass sub-component 413. The rear profiler fixes the rear substrate 414, preventing it from separating from the other glass sub-components 41. It also fixes the surface of the rear substrate 414, preventing deformation of the surface of the rear substrate 414 during the welding process.

[0179] It should be noted that in some embodiments, after the various glass sub-components 41 are formed into an integral structure by the adhesive 20, the rear substrate 414 can directly abut against the structure and be fixed by the rear contouring member. Therefore, the rear substrate 414 does not need to be connected to the various glass sub-components 41 by the adhesive 20. In other embodiments, the rear substrate 414 and the various glass sub-components 41 can also be connected to each other by the adhesive 20 to fix the rear substrate 414. That is, whether or not the rear substrate 414 and the glass sub-components 41 need to be bonded can be selected according to actual needs and is not limited here.

[0180] Referring to Figures 8 and 9, in some embodiments, the fixing assembly 10 includes a support assembly 14, a plurality of side profile members 113, and a plurality of clamping members 13. The plurality of side profile members 113 are all mounted on the support assembly 14 and form a support space 10a for accommodating the glass piece 40 to be welded. The surface of each side profile member 113 can conform to the circumferential sidewall of the glass piece 40 to be welded. During the high-temperature welding process, the glass piece 40 will expand due to the high temperature. The plurality of side profile members 113 correct the shape of the glass piece 40 to be welded, preventing significant changes in the dimensional accuracy of the glass piece 40.

[0181] During the high-temperature welding process, the glass component 40 to be welded will not only expand due to the high temperature, but also soften due to the high temperature, eventually causing the glass component 40 to collapse, resulting in an uneven surface on the product after welding is completed.

[0182] For this purpose, multiple clamping members 13 correspond one-to-one with multiple side profile members 113. Each clamping member 13 is disposed between the corresponding side profile member 113 and the support assembly 14, and is used to apply a pre-tightening force to the corresponding side profile member 113 toward the support space 10a. When the glass piece 40 to be fused is located in the support space 10a, the pre-tightening force applied by the clamping member 13 can ensure that the side profile member 113 can always press the glass piece 40 to be fused, thereby correcting the shape of the glass piece 40 to be fused, and thus ensuring that the surface of the product formed after the glass piece 40 to be fused is flat.

[0183] It should be noted that the clamping component 13 can also be called the pre-tightening component.

[0184] It should be noted that "multiple" refers to two or more, such as two, three or more.

[0185] The aforementioned welding device forms a support space 10a for accommodating the glass piece 40 to be welded by multiple side profile members 113. The surface of each side profile member 113 can fit against the circumferential side wall of the glass piece 40 to be welded. By applying a pre-tightening force to the corresponding side profile member 113 towards the support space 10a through multiple clamping members 13, the side profile member 113 can always press the glass piece 40 to be welded, thereby correcting the shape of the glass piece 40 to be welded. This ensures that the surface of the product formed after welding is flat and improves the dimensional accuracy of the final product.

[0186] Optionally, the glass component 40 to be fused is formed by splicing multiple glass sub-components 41 together. After the glass component 40 to be fused is placed in the fusion device, the fusion device is placed in a high-temperature furnace under atmosphere protection, so that the splicing points of the multiple glass sub-components 41 melt and fuse together, and finally the multiple glass sub-components 41 form a whole.

[0187] In some embodiments, the support assembly 14 includes a base 141, a top seat 142, and a plurality of second connectors 143. The base 141 and the top seat 142 are spaced apart along the second direction D2. All the side profiles 113 are disposed between the base 141 and the top seat 142. The two ends of each second connector 143 are connected to the base 141 and the top seat 142 respectively. The plurality of second connectors 143 are spaced apart around the support space 10a. Each clamping member 13 is disposed between at least one second connector 143 and the corresponding side profile 113.

[0188] As shown in Figure 8, when the clamping member 13 applies a pre-tightening force to the corresponding side profile member 113, the clamping member 13 also applies a reaction force to the second connecting member 143 connected to it. The base 141 and the top seat 142 are connected to form a whole through multiple second connecting members 143, so that the reaction force will not only act on the second connecting member 143, but will act on the entire welding device. This can reduce the deformation of the second connecting member 143 caused by the reaction force, thereby ensuring that the clamping member 13 can normally apply a pre-tightening force to the side profile member 113.

[0189] In some embodiments, each side profile 113 is provided with a guide slope 1133 on the side away from the bearing space 10a, each second connector 143 extends longitudinally along the second direction D2, and each clamping member 13 abuts against the guide slope 1133 of the corresponding clamping member 13 and the second connector 143. The guide slope 1133 intersects the second direction D2. When the welding device is working, the clamping member 13 will be pressed against the glass piece 40 to be welded under the action of gravity.

[0190] Specifically, when the welding device is working, the second direction D2 is parallel to the direction of gravity. At this time, the guide slope 1133 is inclined relative to the direction of gravity. The clamping member 13 placed between the guide slope 1133 and the bearing component 14 will move downward along the guide slope 1133 under the action of gravity because the guide slope 1133 is inclined relative to the direction of gravity, until it abuts against the second connecting member 143. At this time, the weight of the clamping member 13 is entirely applied to the guide slope 1133, and finally the pre-tightening force is applied to the side profile member 113, so that the side profile member 113 can fit tightly against the glass piece 40 to be welded located in the bearing space 10a.

[0191] It is understood that in other embodiments, the clamping member 13 can also be an elastic member such as a spring. By placing the spring between the second connecting member 143 and the side profile member 113 and making the spring in a compressed state, a certain preload can be applied to the side profile member 113 by the spring, so that the side profile member 113 can fit tightly against the glass piece 40 to be welded.

[0192] In some specific embodiments, the clamping member 13 is a cylinder. The function of the cylindrical clamping member 13 is the same as in the aforementioned embodiments, and will not be repeated here. This is so that when the glass piece 40 to be welded is deformed, the movement of the clamping member 13 on the guide inclined surface 1133 can push the side contouring member 113 to move together, so that the side contouring member 113 always fits tightly against the side wall of the glass piece 40 to be welded.

[0193] Referring to Figures 10 and 11, the glass component 40 to be fused includes a top glass component 412, a bottom glass component 411, and multiple side glass components 413. The multiple side glass components 413 are arranged around the edges of the top glass component 412 and the bottom glass component 411, and are respectively spliced ​​with the top glass component 412 and the floor to form the glass component 40 to be fused. After the fusion is completed, the top glass component 412, the bottom glass component 411, and each side glass component 413 will form a whole.

[0194] Specifically, in the embodiments shown in Figures 8, 9, and 10, the side glass sub-components 413 include three parts, and therefore the side contouring parts 113 include three parts. The three side contouring parts 113 are respectively the first side contouring part 113a, the second side contouring part 113b, and the third side contouring part 113c. The first side contouring part 113a and the third side contouring part 113c are arranged opposite to each other, and the second side contouring part 113b is connected to the first side contouring part 113a and the third side contouring part 113c respectively. The clamping member 13 also includes three parts, namely the first clamping member 13a, the second clamping member 13b and the third clamping member 13c. The first clamping member 13a abuts between the first side profile member 113a and the two second connecting members 143, the second clamping member 13b abuts between the second side profile member 113b and one second connecting member 143, and the third clamping member 13c abuts between the third side profile member 113c and the two second connecting members 143.

[0195] Furthermore, the top glass sub-part 412 and the bottom glass sub-part 411 of the glass part 40 to be welded can be directly shaped by the top seat 142 and the base 141. At this time, the top seat 142 is equivalent to the top shaping part 111, and the base 141 is equivalent to the bottom shaping part. The second connector 143 is equivalent to the first connector 12 in the aforementioned embodiment.

[0196] However, different top mounts 142 and bases 141 are required for different glass pieces 40 to be welded, which is costly. Therefore, in some embodiments, the welding device also includes a bottom profile 112, which is installed on the base 141 and can fit against the bottom surface of the glass piece to be welded. When the glass piece 40 to be welded is welded, the bottom of the glass piece 40 is shaped by the bottom profile, avoiding excessive deformation of the bottom of the glass piece 40 to be welded, ensuring the dimensional accuracy of the product after welding. Furthermore, when different glass pieces 40 to be welded are replaced, only the corresponding bottom profile 112 needs to be replaced, without replacing the base 141.

[0197] Furthermore, the welding device also includes a top profiler 111, which is placed on top of the glass piece 40 to be welded and fits against the top surface of the glass piece 40 to be welded. This allows the top of the glass piece 40 to be welded to be shaped by the top profiler during the welding process, thus preventing excessive deformation of the top of the glass piece 40 and ensuring the dimensional accuracy of the product after welding.

[0198] For example, the bottom glass sub-part 411 of the glass part 40 to be fused is attached to the surface of the bottom profile 112, and the multiple side glass sub-parts 413 correspond to and are attached to the multiple side profiles 113 respectively. The top glass sub-part 412 is attached to the surface of the top profile 111. During the fusion process of the glass part 40 to be fused, the middle part of the top glass sub-part 412 will soften due to high temperature. Since only the edge of the top glass sub-part 412 can be supported on the multiple side glass sub-parts 413, and the top profile 111 is also placed on top of the top glass sub-part 412, the middle part of the top glass sub-part 412 will collapse, affecting the precision dimensions of the product formed after fusion.

[0199] It should be noted that the bottom profile 112 can also be called the lower profile, and the top profile 111 can also be called the upper profile.

[0200] Therefore, in some embodiments of this application, the welding device further includes a lifting member 15, which is mounted on the support assembly 14. Multiple side glass sub-pieces 413 on the glass piece 40 to be welded are arranged sequentially. An opening 40a communicating with the interior of the glass piece 40 to be welded is formed between the first side glass sub-piece 413 and the last side glass sub-piece 413. The lifting member 15 can enter the interior of the glass piece 40 to be welded through the opening 40a and can abut against the top of the glass piece 40 to be welded, so as to support the top glass sub-piece 412 of the glass piece 40 to be welded by the lifting member 15, thereby preventing the top glass sub-piece 412 from collapsing.

[0201] In some embodiments, the lifting member 15 is configured to apply a lifting force to the top of the glass piece 40 to be welded toward the contour member, that is, the lifting member 15 can apply a lifting force toward the contour member to the top glass sub-piece 412 of the glass piece 40 to be welded, so that the top glass sub-piece 412 can press against the top contour member 111, thereby making the surface of the top glass sub-piece 412 fit together with the surface of the top contour member 111, and finally making the surface of the top glass sub-piece 412 more flat after welding, thus improving the dimensional accuracy of the final product.

[0202] In some specific embodiments, the welding device further includes a fixing member 191 and a weight 192. The fixing member 191 is mounted on the bearing assembly 14. The middle part of the lifting member 15 is swayably mounted on the fixing member 191. The weight 192 is mounted on one end of the lifting member 15 in the longitudinal direction. The other end of the lifting member 15 extends into the interior of the glass piece 40 to be welded through the opening 40a and abuts against the top of the glass piece 40 to be welded. Thus, when the welding device is working, the end of the lifting member 15 with the weight 192 will move downward under the gravity of the weight 192, while the end of the lifting member 15 extending into the interior of the glass piece 40 to be welded will move upward and apply a certain pressure to the top of the glass piece 40 to be welded. This pressure is the lifting force.

[0203] Specifically, in the embodiment shown in Figure 8, the fixing member 191 has a through hole 191a, the axis of the through hole 191a is perpendicular to the second direction D2, the lifting member 15 passes through the through hole 191a, and one end of the lifting member 15 has a mounting groove 15a, the longitudinal direction of the mounting groove 15a is perpendicular to the longitudinal direction of the lifting member 15, the weight 192 has a mounting post 192a, the mounting post 192a can be placed in the mounting groove 15a, so that the weight 192 is installed on one end of the lifting member 15, and the other end of the lifting member 15 can enter the interior of the glass part 40 to be welded through the opening 40a and abut against the middle of the top glass part 412. Under the action of the weight 192, the lifting member 15 can apply a certain pressure to the top glass part 412, so that the surface of the top glass part 412 fits against the top contour member 111.

[0204] During the welding process, the glass component 40 to be welded may expand outward or collapse inward, causing changes in the dimensional accuracy of the glass component 40 to be welded. To address this, in some embodiments, the glass component 40 to be welded has an opening 40a that communicates with its interior. The welding device also includes an inflation port 16 facing the opening 40a. The inflation port 16 is used to output gas, which enters the interior of the glass component 40 to be welded through the opening 40a, placing the interior of the glass component 40 under high pressure. The heated glass component 40 will expand, making it fit more tightly against the inner wall of the bearing space 10a, thus ensuring the dimensional accuracy of the glass component 40 to be welded.

[0205] Furthermore, in the actual welding process, due to the presence of air within the bearing space 10a, the outer wall of the glass piece 40 to be welded cannot fully fit against the inner wall of the bearing space 10a, thus affecting the dimensional accuracy of the glass piece 40 after welding. To address this, the welding device also includes an air extraction port 17, which is connected to the bearing space 10a and is positioned away from the opening 40a of the glass piece 40 to be welded. The air extraction port 17 extracts the air between the inner wall of the bearing space 10a and the glass piece 40 to be welded, allowing the glass piece 40 to be welded to make close contact with the inner wall of the bearing space 10a, thereby further ensuring the dimensional accuracy of the glass piece 40 to be welded.

[0206] In the aforementioned welding device, when the glass piece 40 to be welded is being welded, the air inlet 16 is inflated towards the interior of the glass piece 40 to be welded, and the air outlet 17 removes the air between the glass piece 40 to be welded and the inner wall of the bearing space 10a. This allows the glass piece 40 to be welded to be molded even if it deforms during welding, as the inner wall of the bearing space 10a can still fit against the outer wall of the glass piece 40 to be welded, thus achieving the effect of shaping the glass piece 40 to be welded. This ensures the welding effect while reducing changes in the dimensional accuracy of the glass piece 40 to be welded.

[0207] Optionally, the glass component 40 to be fused is formed by splicing together multiple glass sheets (also known as glass sub-components). After the glass component 40 to be fused is placed in the fusion device, the multiple glass sheets of the glass component 40 are melted by heating the fusion device, and the multiple glass sheets are fused together to form a whole. Finally, after the fusion device is cooled down, the glass product can be obtained.

[0208] In some embodiments of this application, the welding device includes a top profile 111, a side profile 11, a diverter 18, and a bottom profile 112. The side profile 11 and the diverter 18 are disposed at one end of the bottom profile 112 in the second direction D2, and the top profile 111 is disposed at the other end of the side profile 11 and the diverter 18 in the second direction D2. The top profile 111, the side profile 11, the diverter 18, and the bottom profile 112 surround and form a bearing space 10a.

[0209] Specifically, in the embodiment shown in Figure 12, the bottom of the side profile 11 and the diverter 18 are disposed on the bottom profile 112, and the top of the side profile 11 and the diverter 18 are disposed on the top profile 111. The closed bearing space 10a is formed by the mutual splicing of the top profile 111, the side profile 11, the diverter 18 and the bottom profile 112.

[0210] The top contouring part 111 and the bottom contouring part 112 are respectively attached to the two ends of the glass part 40 to be welded in the second direction D2. That is, the top contouring part 111 and the bottom contouring part 112 are used to shape the top and bottom of the glass part 40 to be welded, respectively. The side contouring part 11 is attached to the circumferential sidewall of the glass part 40 to be welded, and the sidewall of the glass part 40 to be welded is shaped by the diverter 18.

[0211] Furthermore, the diverter 18 has an opening 40a facing it and is provided with an air inlet 16. That is, the part of the diverter 18 corresponding to the glass piece 40 to be welded is the opening 40a. Therefore, the diverter 18 does not participate in the shaping of the glass piece 40 to be welded, thus avoiding the air inlet 16 from affecting the shaping effect of the glass piece 40 to be welded.

[0212] Furthermore, the bottom contour piece 112 is provided with an air extraction port 17, which is located at the bottom of the supporting space 10a. This allows the air extraction port 17 to be far away from the inflation port 16, preventing the air extraction port 17 from drawing out the airflow inside the glass piece 40 to be welded, thus affecting the expansion effect of the glass piece 40 to be welded. During the welding process of the glass piece 40 to be welded, the inflation port 16 only needs to inject a certain amount of gas into the glass piece 40 to be welded, ensuring that the gas pressure inside the glass piece 40 to be welded is at a certain level so that the glass piece 40 to be welded can expand. Similarly, the air extraction port 17 only needs to extract a certain amount of gas to ensure that the glass piece 40 to be welded can contact the inner wall of the supporting space 10a.

[0213] In some embodiments, referring to FIG12, the welding device further includes a carrier 30, which has a receiving cavity 31 and a receiving opening 32 communicating with the receiving cavity 31. The top profile 111 is mounted on the carrier 30 and covers the receiving opening 32. The side profile 11, the diverter 18 and the bottom profile 112 are all disposed in the receiving cavity 31. Since the side profile 11, the diverter 18 and the bottom profile 112 are all connected to each other by splicing, the side profile 11, the diverter 18 and the bottom profile 112 are housed in the receiving cavity 31, which can prevent the side profile 11, the diverter 18 and the bottom profile 112 from separating, thus improving the reliability of the welding device.

[0214] In some specific embodiments, the top contouring member 111 can be engaged with the carrier member 30, thereby forming a whole with the top contouring member 111 and the carrier member 30, and thus fixing the side contouring member 11, the diverter member 18 and the bottom contouring member 112 in the accommodating cavity 31, so as to prevent the positions of the side contouring member 11, the diverter member 18 and the bottom contouring member 112 from changing during welding.

[0215] In some specific embodiments, the welding device further includes a clamping member 13, which is located at the end of the side profile 11 away from the diverter 18 and can apply a pre-tightening force to the side profile 11 toward the diverter 18. In actual use, the gas blown in through the air inlet 16 will collide with the inner wall of the glass piece 40 to be welded at the end away from the air inlet 16 before gradually diffusing within the glass piece 40. When the gas impacts the end of the glass piece 40 to be welded, it will apply a certain impact force to the glass piece 40 to be welded, and the impact force will be transferred to the diverter 18 via the glass piece 40 to be welded.

[0216] Thus, after prolonged use, the flow divider 18 of the welding device will deform to a certain extent. The deformed flow divider 18 cannot fit tightly against the glass piece 40 to be welded, causing the size of the glass piece 40 to change. However, the pre-tightening force applied to the side profile 11 towards the flow divider 18 by the clamping member 13 can be offset by the impact force of the gas, preventing the side profile 11 from deforming and ensuring that the side profile 11 can always fit tightly against the glass piece 40 to be welded.

[0217] In the embodiments shown in Figures 13 and 14, the glass component 40 to be welded includes a top glass component 412, a bottom glass component 411, and a plurality of side glass components 413. The top glass component 412 and the bottom glass component 411 are respectively disposed at both ends of all the side glass components 413 in the second direction D2. The plurality of side glass components 413 are connected in sequence and arranged around the top glass component 412 and the bottom glass component 411. An opening 40a is formed between the first side glass component 413 and the last side glass component 413.

[0218] In order to make the side profile 11 fit against the side wall of the glass component 40 to be welded, the side profile 11 includes multiple side profiles 113. The multiple side profiles 113 are connected in sequence and correspond one-to-one with multiple side glass sub-components 413. The surface of each side profile 113 matches and fits against the surface of the corresponding side glass sub-component 413, so that each side glass sub-component 413 can be shaped individually for the corresponding side glass sub-component 413, ensuring the shaping effect.

[0219] A diverter 18 is provided at the opening 40a, and a clamping member 13 is provided on the side of the side profile 113 furthest from the diverter 18. A pre-tightening force is applied to the side profile 113 toward the diverter 18 to prevent the side profile 113 from being deformed due to long-term gas thrust, and to ensure a tight fit between the side profile 113 and the side glass component 413.

[0220] In some specific embodiments, the side profile 11 is provided with a guide slope 1133, which is inclined relative to the second direction D2. The clamping member 13 abuts against the guide slope 1133 and the bearing member 30 respectively. When the welding device is working, the second direction D2 is parallel to the direction of gravity. Under the action of gravity, the clamping member 13 on the guide slope 1133 will apply a certain pressure to the guide slope 1133. This pressure will be converted into a pre-tightening force that pushes the side profile 11 to move horizontally through the guide slope 1133, that is, a pre-tightening force applied to the diverter 18 through the clamping member 13. In the specific embodiment of FIG. 14, the glass piece 40 to be welded includes three side glass sub-pieces 413, and the side profile 11 includes three side profiles 113. The middle side profile 113 is provided with a guide slope 1133 and abuts against the clamping member 13.

[0221] Furthermore, the clamping member 13 is also provided with a contact slope 131, which is parallel to the guide slope 1133 and abuts against each other, so as to increase the contact area between the clamping member 13 and the side profile member 11 through the contact slope 131 and the guide slope 1133, so that the preload applied by the clamping member 13 to the side profile member 11 is more stable.

[0222] In some embodiments, in order to send gas from outside the welding device into the air inlet 16 on the diverter 18, an air inlet 111a is provided on the top profile 111. The air inlet 111a is used to connect with an external gas source. The top profile 111, the carrier 30 and the diverter 18 are all provided with interconnected gas channels 33. The gas channel 33 on the top profile 111 is connected to the air inlet 111a, and the gas channel 33 on the diverter 18 is connected to the air inlet 16.

[0223] Thus, the gas input through the air inlet 111a will pass through the gas flow channel 33 on the top contour member 111 and the gas flow channel 33 on the support member 30 in sequence, and finally enter the gas flow channel 33 on the diverter 18. Finally, it will be discharged from the air inlet 16 of the diverter 18 and enter the interior of the glass piece 40 to be welded through the opening 40a of the glass piece 40 to be welded.

[0224] In some embodiments, the glass processing equipment further includes an air extraction device and an air delivery device. The air extraction device is connected to the air extraction port 17 to extract gas from the space 10a to be carried, while the air delivery device is connected to the air inlet 111a, so that the input device can be connected to the air filling port 16 and gas can be input into the air filling port 16 through the air delivery device.

[0225] By setting an inflation port 16 and an exhaust port 17, when the glass piece 40 to be fused is fused, the inflation port 16 inflates the inside of the glass piece 40 to be fused, and the exhaust port 17 removes the air between the glass piece 40 to be fused and the inner wall of the bearing space 10a. This allows the glass piece 40 to be fused to conform to the outer wall of the glass piece 40 to be fused through the inner wall of the bearing space 10a, even if it deforms during fusion. This achieves the effect of shaping the glass piece 40 to be fused, thereby reducing the change in the dimensional accuracy of the glass piece 40 to be fused while ensuring the fusion effect.

[0226] In some embodiments, the assembly gap between the welding device and the glass piece 40 to be welded is 0.02 mm to 0.1 mm. For example, the assembly gap between the welding device and the glass piece 40 to be welded may be, but is not limited to, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, or any range of two of these values. Optionally, the assembly gap between the welding device and the glass piece 40 to be welded is 0.05 mm to 0.08 mm. This arrangement facilitates the assembly of the glass piece 40 to be welded within the welding device.

[0227] In some embodiments, when the glass piece 40 to be welded is placed within the bearing space 10a, the overpressure gap between the welding device and the glass piece 40 to be welded is 0.03 mm to 0.5 mm. For example, the overpressure gap may be, but is not limited to, 0.03 mm, 0.05 mm, 0.1 mm, 0.12 mm, 0.15 mm, 0.18 mm, 0.2 mm, 0.22 mm, 0.25 mm, 0.28 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, or any range of two of these values. Optionally, the overpressure gap is 0.1 mm to 0.3 mm. With the above configuration, it can be ensured that the pressure applied to the welding device can be transmitted to the glass piece 40 to be welded.

[0228] It is understood that the welding device space may be of fixed size in one or more directions, but it can be opened and closed and pressure can be applied inward in at least one direction. In the direction of fixed size, the gap between the welding device and the glass piece 40 to be welded is 0.05mm to 0.08mm, which facilitates the placement and assembly of the glass piece 40 to be welded. Preferably, the gap is 0.1mm to 0.3mm (i.e., the aforementioned assembly gap). In the direction of opening and closing and pressure can be applied inward, the welding device and the glass are in an interference fit, that is, there is no gap or a negative gap between the welding device and the glass piece 40 to be welded. The negative gap is greater than 0.03mm (i.e., the aforementioned overpressure gap), which is used to press the glass piece 40 to be welded tightly.

[0229] For example, when the glass component 40 to be welded is placed in the space of the welding device, and the length of the internal space of the welding device is fixed in the X and Y directions, and the welding device is only used to passively restrict the position of the glass component 40 to be welded in these directions, the gap between the space and the glass component 40 to be welded in the X and Y directions is 0.05mm to 0.08mm, which facilitates the taking, placing and assembling of the glass component 40 to be welded. Preferably, the gap is 0.1mm to 0.3mm. In the Z direction, the welding device can be opened and closed from the outside and pressure is applied inward to press the glass component 40 to be welded. In this direction, the welding device and the glass should be an interference fit, that is, there is no gap or a negative gap between the welding device and the glass component 40 to be welded. The negative gap is greater than 0.03mm.

[0230] In some embodiments, there is one first glass component 41a and one second glass component 41b, and the glass composite is a T-shaped glass or an L-shaped glass.

[0231] In some embodiments, referring to FIG16, the welding device includes a top profile 111 and a support member 30 for supporting a first glass component 41a, and two side profiles 113 for supporting a second glass component 41b. The two side profiles 113 are arranged in parallel between the top profile 111 and the support member 30. The top profile 111 and the two side profiles 113 define a first support space 101a for accommodating the first glass component 41a, and two support blocks define a second support space 102a for accommodating the second glass component 41b. The first support space 101a and the second support space 102a are in communication and together form a support space 10a.

[0232] It should be noted that in this embodiment, the top contouring component 111 can also be referred to as the upper mold, the carrier component 30 can also be referred to as the lower mold, and the side contouring component 113 can also be referred to as the support block.

[0233] In the step of placing the glass component 40 to be welded into the bearing space 10a, the first glass component 41a is placed into the first bearing space 101a and the second glass component 41b is placed into the second bearing space 102a.

[0234] In the step of pressurizing and heating the welding device, pressure is applied to the top profile 111 and / or the carrier 30.

[0235] Please refer to Figures 15 and 16. Taking T-shaped glass welding as an example, the welding device includes a top profile 111, two side profiles 113 and a support 30. The glass piece to be welded 40 includes a first glass sub-piece 41a and a second glass sub-piece 41b.

[0236] As shown in Figures 15 and 16, during welding, the second glass component 41b is inserted between the two side profile members 113. The support member 30 and the side profile members 113 ensure the vertical assembly of the second glass component 41b. The first glass component 41a is placed on the cross-section of the second glass component 41b and the two side profile members 113. The top profile member 111 presses on the first glass component 41a, keeping the first glass component 41a basically horizontal.

[0237] After assembly, a gap is made between the first glass sub-component 41a and the side profile 113, and a gap is made between the top profile 111 and the support member 30, so as to ensure that the lower surface of the first glass sub-component 41a, i.e. the first welding surface, is in contact with and under pressure from the cross section of the second glass sub-component 41b, i.e. the second welding surface.

[0238] After assembling the welding device and the glass component 40 to be welded as described above, heat the welding device and the glass component 40 to the welding temperature in a suitable device, apply pressure to the welding device, maintain the temperature for a period of time, and finally cool down for annealing, thereby fusing the first glass component 41a and the second glass component 41b together. The pressure applied can be applied to the top profile 111 or the support member 30, causing the top profile 111 and the support member 30 to converge along their central axis. During this process, the top profile 111 should be subjected to force as horizontally and evenly as possible to ensure that the first glass component 41a remains horizontal at all times, so that the final welded first glass component 41a will be perpendicular to the second glass component 41b.

[0239] It is understandable that pressure can be applied either during the heating phase or the isothermal phase, as long as pressure is maintained during the isothermal welding phase. Pressure can continue to be applied or removed during the cooling phase. In practice, during the heating phase, partial welding begins due to the weight of the glass piece 40 to be welded and the top profile 111.

[0240] In some embodiments, to further improve the welding effect, the roughness (Ra) of the lower surface of the first glass component 41a (i.e., the first welding surface) and the cross-section of the second glass component 41b (i.e., the second welding surface) are less than or equal to 10 μm, and the flatness is less than or equal to 100 μm. Furthermore, the first and second welding surfaces can be cleaned before contact. This approach helps reduce the risk of bubbles and gaps after welding, thus improving the welding effect. It is understood that in other embodiments, bubbles and gaps can also be reduced by adjusting the welding temperature and pressure, utilizing the characteristics of high-temperature adaptive assembly welding.

[0241] It is understood that Figures 15 and 16 only show the T-type welding method for two glass pieces 40 to be welded, but it is not limited to this. Two glass pieces 40 to be welded can also be used for L-type welding, or three glass pieces 40 to be welded can be used for U-type welding or H-type welding, etc.

[0242] In other embodiments, the above-described glass welding method can also be used for welding polyhedra. Specifically, there are two first glass sub-components 41a and multiple second glass sub-components 41b. The multiple second glass sub-components 41b also have a third welding surface and a fourth welding surface. The third welding surface is disposed opposite to the second welding surface, and the fourth welding surface is in contact with both the second and third welding surfaces.

[0243] In the step of placing the glass component 40 to be welded into the bearing space 10a, the first welding surface of one of the first glass components 41a is in contact with the second welding surfaces of a plurality of second glass components 41b, the first welding surface of another first glass component 41a is in contact with the third welding surfaces of a plurality of second glass components 41b, and the fourth welding surfaces of two adjacent second glass components 41b are in contact, so that the glass composite is a hollow polyhedral glass.

[0244] In this embodiment, the two first glass components 41a can be referred to as the top glass component 412 and the bottom glass component 411, respectively, and the plurality of second glass components 41b can be referred to as the side glass components 413.

[0245] In some embodiments, a through hole is provided on the first welding surface of one of the first glass sub-components 41a, and a corresponding through hole is also provided on a corresponding position of a contour member 11 supporting the first glass sub-component 41a. During the step of pressurizing and heating the glass sub-component 40 to be welded, air is also circulated into the polyhedral glass through the through hole, and the air pressure is 0.001 MPa to 0.6 MPa lower than the pressure of the first welding surface. For example, the air pressure is 0.001 MPa, 0.01 MPa, 0.05 MPa, 0.1 MPa, 0.15 MPa, 0.2 MPa, 0.25 MPa, 0.3 MPa, 0.35 MPa, 0.4 MPa, 0.5 MPa, 0.6 MPa, or any combination of these values ​​that is lower than the pressure of the first welding surface. Optionally, the air pressure is 0.05 MPa to 0.4 MPa lower than the pressure of the first welding surface. With the above settings, a pressure greater than the blowing pressure is applied to the outside of the welding device to achieve internal and external balance, ensuring that the assembled glass will not be blown open by the internal blowing, and ensuring that there is pressure to press the glass tightly so that it can be welded.

[0246] In some embodiments, the ventilation pressure is 15 kPa to 800 kPa. For example, the ventilation pressure may be, but is not limited to, 20 kPa, 30 kPa, 50 kPa, 70 kPa, 90 kPa, 100 kPa, 120 kPa, 150 kPa, 180 kPa, 200 kPa, 500 kPa, 800 kPa, or any combination of these values. Optionally, the ventilation pressure is 30 kPa to 500 kPa. When the assembled glass is secured by a welding device on the outside, the pressure of the air blown into the insulating glass should be maintained within the range of 15 kPa to 800 kPa to ensure that the glass does not collapse at high temperatures.

[0247] In some embodiments, the introduced gas includes one or more of nitrogen, argon, hydrogen, or air. Optionally, the introduced gas includes one or more of nitrogen, argon, and hydrogen, and is used to protect the graphite welding device and support the glass component 40 to be welded. Optionally, the introduced gas includes air, but introducing air will reduce the lifespan of the graphite welding device. It is understood that when air is introduced, a high-temperature resistant and oxidation-resistant ceramic material can also be used as the welding device.

[0248] The following section, in conjunction with Figures 17 and 18, provides a detailed explanation of the welding of hexahedral glass with a hollow three-dimensional structure, but is not limited to this.

[0249] Referring to Figures 17 and 18, the glass components to be welded include two first glass sub-components 41a and four second glass sub-components 41b. The first glass sub-components 41a have a first welding surface, and the second glass sub-components 41b have a second welding surface and a third welding surface that are welded to the first glass sub-components 41a. The second glass sub-components 41b also have a fourth welding surface, which is in contact with both the second and third welding surfaces. The welding device includes a top profiler 111 and a support member 30, which define a support space 10a.

[0250] In this embodiment, the welding device can also be referred to as a mold, the top profiler 111 can also be referred to as an upper mold, and the carrier 30 can also be referred to as a lower mold. The top profiler 111 and the carrier 30 define a carrier space 10a, that is, the carrier 30 (lower mold) simultaneously has the functions of the bottom profiler 112 and the side profiler 113.

[0251] Specifically, one of the first glass sub-components 41a has a through hole on its first welding surface, and the corresponding position of the top profile 111 that contacts the first glass sub-component 41a also has a through hole. Both the second glass sub-component 41b and the first glass sub-component 41a are treated with a 45° chamfer, and the dimensional deviation is less than ±0.5mm, so that they can fit tightly after assembly.

[0252] During welding, the glass components to be welded are placed in the bearing space 10a, so that the first welding surface of one of the first glass components 41a contacts the second welding surfaces of multiple second glass components 41b, the first welding surface of another first glass component 41a contacts the third welding surfaces of multiple second glass components 41b, and the fourth welding surfaces of two adjacent second glass components 41b contact each other, so that the glass composite is a hollow hexahedral glass with an opening on one side.

[0253] After assembly, the opening 111b of the top profile 111 is aligned with the opening of the first glass sub-part 41a, allowing air to be blown into the glass composite through the opening 111b. A gap exists between the top profile 111 and the support member 30 after assembly, ensuring overpressure. The mold closing pressure of the welding device can press the glass parts to be welded together, achieving high-temperature welding.

[0254] Assemble the glass component 40 to be fused and the fusion device according to the above steps. Heat the fusion device and the glass component 40 to be fused to the fusion temperature in a suitable device. During the heating process, apply pressure to the fusion device and blow air into the opening 111b at the same time to ensure internal and external pressure. Maintain the temperature for a period of time and finally cool down and anneal. The first glass component 41a and the second glass component 41b can be fused together to form a hollow hexahedral glass.

[0255] It is understandable that air should be blown continuously during the welding process, including the heating, constant temperature, and cooling stages, in order to avoid glass deformation.

[0256] In the aforementioned glass welding method, air is introduced into the glass composite to be welded to create positive isostatic pressure, achieving non-contact internal support and preventing the glass from collapsing due to gravity during high-temperature welding, thus achieving three-dimensional welding. By utilizing non-contact air pressure and contact pressure to support and fix the glass components to be welded, assembly of the glass components at room temperature is achieved, eliminating the need for glass lamination and allowing for direct high-temperature welding.

[0257] It is understood that Figures 15-18 above illustrate two relatively specific glass welding methods, but these are not the only possibilities. The welding device can also be designed according to the shape and quantity of the glass composite to be welded. For example, it can consist of more components, and is not limited to the design of upper and lower welding devices closing the mold. It can consist of multiple components that restrict and fix the assembled glass from multiple directions, and the welding device can extrude the glass pieces to be welded from multiple directions to achieve adaptive welding of each glass piece under high temperature and high pressure. In addition, the parameters such as temperature, extrusion pressure, and blowing pressure during the welding process can be varied within the above range according to the specific material of the glass pieces to be welded and the material of the welding device.

[0258] Traditional techniques employ high-temperature flame welding of glass composites, such as lampworking glass. Specifically, a high-temperature flame is used to soften or melt the glass, then two pieces are brought together to achieve fusion, followed by cooling and annealing. However, this method requires heating the glass above its softening point, causing significant softening and deformation, even flow and shrinkage, making precise dimensional control impossible and resulting in low operational accuracy. In contrast, some embodiments of this application utilize a welding device for cold forming, allowing for precise control of individual piece and assembly dimensions. Precision assembly is achieved before welding, and the assembled glass is heated and pressurized in the welding device to achieve fusion. The welding temperature of this method is typically near or lower than the softening point, minimizing glass deformation and ensuring high dimensional accuracy. Furthermore, in some embodiments, the welding temperature can be lowered to near the strain point temperature of the glass pieces to be welded.

[0259] Current glass bonding technologies cannot achieve the bonding of multiple components or glass composites because multi-component assembly is prone to interference, making precise assembly difficult. Some embodiments of this application utilize a bonding device for positioning and fixing, along with pneumatic support, to easily achieve precise assembly without the need for bonding, and this does not affect subsequent bonding. Furthermore, low-ash adhesives and tapes can be used to fix the glass, enabling room-temperature assembly. The assembled glass is then placed in the bonding device for fixation; at high temperatures, the adhesives and tapes decompose and disappear, without affecting subsequent bonding. The assembled glass is then heated together in the bonding device. At high temperatures, the glass gradually softens, and under the pressure of the bonding device, multiple glass pieces adhere tightly to each other, resulting in chemical bonding and mass exchange at the interfaces, thus achieving bonding.

[0260] Due to limitations in lamination technology, current welding techniques are only suitable for planar welding. This is because the contact area (lamination area) in three-dimensional welding is small, typically with the width of the contact surface roughly equal to the glass thickness, making lamination between two pieces of glass quite difficult. If three pieces of glass are in contact during three-dimensional welding, lamination between each pair becomes even more challenging. To achieve seamless lamination of three pieces of glass, the dimensional and flatness precision must reach sub-micron levels. Furthermore, the lamination process easily leads to scratches and edge chipping, making the operation virtually impossible. In addition, during three-dimensional welding, the glass is prone to collapse and deform under its own weight at high temperatures. Some embodiments of this application solve these problems through welding device design and improved welding processes, enabling the welding of small-contact-area, three-dimensional glass structures with a glass thickness >1mm without lamination. Specifically, a welding device is used for support to prevent glass deformation, while simultaneously applying pressure to fuse the glass components together. Furthermore, a gas-based non-contact support method is used for the glass, preventing marks from being left inside the insulated glass unit and avoiding the subsequent difficulty in internal polishing.

[0261] Therefore, the glass welding method that involves applying pressure while simultaneously heating the glass components to be welded has at least the following advantages:

[0262] (1) The above glass welding method uses a welding device to support and fix multiple glass pieces to be welded, so that multiple glass pieces to be welded do not need to be joined together and can be fixed well. Then, while the glass pieces to be welded are pressurized and heated, the glass can be slightly deformed (<3mm) under a certain temperature and pressure, so that the unjoined glass pieces to be welded are brought close to each other and squeezed together to achieve mutual fitting, thereby realizing assembly welding.

[0263] (2) The glass parts to be welded can be fixed first with tape, glue, etc., and the tape or glue evaporates at high temperature. The glass is then restricted and fixed by the welding device, and pressure is applied to the glass to achieve glass welding.

[0264] (3) For the welding of glass composites with cavities, the welding device and the glass to be welded are provided with air holes. The air holes lead to the cavity. During welding, pressure is applied to the welding device to squeeze the glass to weld. At the same time, air is blown into the cavity through the air holes to support the glass. The internal and external pressures are balanced to ensure that the assembled glass composite is welded under certain high temperature and high pressure and will not collapse or deform.

[0265] To make the objectives and advantages of this application clearer, the glass welding method and its effects are further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and should not be used to limit this application. Unless otherwise specified, the following embodiments do not include components other than unavoidable impurities. Unless otherwise specified, the drugs and instruments used in the embodiments are conventional choices in the art. Experimental methods in the embodiments that do not specify specific conditions are implemented according to conventional conditions, such as those described in literature, books, or methods recommended by the manufacturer.

[0266] Example 1

[0267] This embodiment provides a glass welding method for welding T-shaped glass, including the following steps:

[0268] (1) T-shaped welding was performed using 2mm thick high aluminosilicate glass material. The dimensions of both glass pieces were 120mm in length and 50mm in width. The strain point temperature of the two glass pieces was 550℃ and the softening point was 780℃.

[0269] (2) Laser cutting is used to grind and polish the welded surface to Ra 0.8μm and flatness 12μm (1mm*1mm area), and then ultrasonically cleaned with pure water.

[0270] (3) Welding: The graphite welding device shown in Figures 15 and 16 is placed horizontally. The top mold (upper mold) and the support (lower mold) are closed with a pressure of 0.2 mm. A vertical downward pressure of 48 N is applied to the top mold (upper mold) (welding surface pressure 0.2 MPa). In a nitrogen-protected atmosphere furnace, the welding device and the glass to be welded are heated at a rate of 10 °C / min to 700 °C and held at that temperature for 15 min. Then, the temperature is lowered to room temperature at a rate of 5 °C / min. The welding device is then removed to obtain the welded T-shaped glass.

[0271] The welded surface of the T-shaped glass in Example 1 was observed under a microscope at 5x magnification, as shown in Figure 19. Excluding weld bubbles and dirt gaps, the welded area accounts for more than 90% of the entire cross-sectional area.

[0272] The T-shaped glass from Example 1 was placed in an ultrasonic device and ultrasonically vibrated for 12 hours at a power of 600W. Microscopic observation showed no obvious changes in the welded surface, as shown in Figure 20. There was no separation, nor any new bubbles or gaps.

[0273] In the ultrasonic vibration test mentioned above, the fused glass was placed in a single-tank ultrasonic machine with a volume of 500*300*250mm. The tank was filled with water about half full, ensuring that the water covered the glass. The ultrasonic vibration was maintained at a power of 600W for about 12 hours.

[0274] Because the glass weld interface is not completely seamless, a small amount of water can enter at the edge of the interface. The cavitation effect and mechanical vibration of water during ultrasonication can be used to test the glass weld strength. If the glass weld strength is poor (as in Comparative Example 3), after ultrasonic vibration, the water at the edge of the weld interface will gradually enter the interior, causing the weld interface to separate. Under microscopic observation, a white edge can be observed, as shown in Figure 21, which is the gap formed by water and air entering the weld interface. In cases of even worse weld quality, the welded glass will separate directly.

[0275] Example 2

[0276] This embodiment provides a glass welding method, similar to the glass welding method in Embodiment 1, except that the roughness, flatness, welding temperature, and welding pressure of the glass welding surface are different. In Embodiment 2, the welding surface is ground and polished to Ra 11μm, and the edge plane area is locally polished, with a local flatness of 320μm (1mm*1mm area). During welding, a vertical downward pressure of 72N is applied to the upper mold (welding surface pressure 0.3MPa), and the welding temperature is 780℃. Other steps are the same as in Embodiment 1 and will not be repeated.

[0277] Figure 22 shows the final fusion interface effect of the T-shaped glass prepared in Example 2 under a microscope at 5x magnification. As can be seen from Figure 22, the glass edge area is partially fused, and the fusion area still accounts for about 80% of the entire fusion surface.

[0278] Comparative Example 1

[0279] Comparative Example 1 provides a glass welding method similar to that of Example 1, except that the pressure and temperature during the welding process are different. In Comparative Example 1, a vertical downward pressure of 120 N is applied to the upper mold (welding surface pressure 0.5 MPa), and the welding temperature is 500 °C. Other steps and parameters are the same as in Example 1 and will not be repeated here.

[0280] After the heating treatment, the first glass component 41a and the second glass component 41b were not fused together, and only indentations appeared at the contact point.

[0281] Comparative Example 2

[0282] Comparative Example 2 provides a glass welding method similar to that of Example 1, except that the pressure and temperature during the welding process are different. In Comparative Example 2, a vertical downward pressure of 360N (welding surface pressure 1.5MPa) is applied to the top mold (upper mold), and the welding temperature is 800℃. Other steps and parameters are the same as in Example 1 and will not be repeated.

[0283] After being heated, the first glass component 41a and the second glass component 41b are fused together, but the second glass component 41b is bent and deformed.

[0284] Comparative Example 3

[0285] Comparative Example 3 provides a glass welding method similar to that of Example 1, except that the pressure and temperature during the welding process are different. In Comparative Example 3, a vertical downward pressure of 360N (welding surface pressure 1.5MPa) is applied to the top mold (upper mold), and the welding temperature is 550℃. Other steps and parameters are the same as in Example 1 and will not be repeated.

[0286] After heating, the first glass component 41a and the second glass component 41b were visually fused together. However, after 12 hours of ultrasonic vibration, white edges appeared at the edges of the glass fusion surface, as shown in Figure 21. Figure 21 is a fusion interface diagram of the glass composite prepared by the glass fusion method of Comparative Example 3 after ultrasonic vibration under a 5x microscope. As can be seen from Figure 21, the edges of the fusion interface are separated, and the fusion strength is poor.

[0287] Example 3

[0288] This embodiment provides a glass welding method for welding square boxes, including the following steps:

[0289] (1) A three-dimensional square box was welded using high-aluminosilicate glass material with a thickness of 3mm, as shown in Figures 17 and 18. The length and width of the glass are both 50mm. In this embodiment, the strain point temperature of the glass is 550℃ and the softening point is 700℃.

[0290] (2) The CNC precision carving shape is used to grind and polish the welding surface to Ra 0.5μm and flatness 15μm (1mm*1mm area), and then ultrasonically cleaned with pure water.

[0291] (3) Welding: The graphite welding device shown in Figures 17 and 18 is placed horizontally. The top mold (upper mold) and the support (lower mold) are closed with a pressure of 0.1 mm. A vertical downward pressure of 120 N is applied to the top mold (upper mold) (the pressure on the vertical welding surface is 0.1 MPa), while nitrogen is blown into the pores. The pressure of the gas source pipeline is 45 kPa. In a nitrogen-protected atmosphere furnace, the welding device and glass are heated at a rate of 10 °C / min to 650 °C and held at that temperature for 1 hour. Then, the temperature is lowered to room temperature at a rate of 0.5 °C / min. The welding device is then removed, and the welded square glass box is obtained.

[0292] The glass box was filled with water and placed in an ultrasonic device to be ultrasonically vibrated at 600W power for 12 hours. The glass box did not crack or separate.

[0293] Comparative Example 4

[0294] Comparative Example 4 provides a glass welding method, which is similar to the glass welding method in Example 3. The difference is that the pressure of the gas source pipeline in the welding step is different. In Comparative Example 4, the pressure of the gas source pipeline is 5 kPa. Other steps and parameters are the same as in Example 3, and will not be described again.

[0295] Using the glass welding method of Comparative Example 4, after temperature rise and fall treatment, the glass box failed to weld, and the glass on all sides and top collapsed and deformed downwards.

[0296] Comparative Example 5

[0297] Comparative Example 5 provides a glass welding method, which is similar to the glass welding method in Example 3, except that the welding temperature is different. In Comparative Example 5, the welding temperature is 530°C. Other steps and parameters are the same as in Example 3, and will not be repeated here.

[0298] Using the glass welding method of Comparative Example 5, after temperature rise and fall treatment, no welding behavior was observed on the 6 glass surfaces, and the glass could be taken out one by one after demolding.

[0299] Comparative Example 6

[0300] Comparative Example 6 provides a glass welding method, which is similar to the glass welding method in Example 3. The difference is that the pressure of the gas source pipeline in the welding step is different. In Comparative Example 6, the pressure of the gas source pipeline is 300 kPa. Other steps and parameters are the same as in Example 3, and will not be described again.

[0301] Using the glass welding method of Comparative Example 6, after heating and cooling treatment, the glass welding failed and the glass chipped and cracked in many places. This was because the pressure of the gas source pipeline was too high, the pressure applied by the top mold of the welding device was insufficient, and the upper mold leaked air and vibrated, resulting in the glass cracking and failure to weld.

Claims

1. A method of glass fusion, wherein, The method comprises the following steps: placing a glass piece to be fused into a fusion device, the fusion device having a bearing space for accommodating the glass piece to be fused; fusing the glass piece to be fused.

2. The glass fusing method according to claim 1, wherein, Before the step of placing the glass piece to be fused into the fusion device, further comprising: lapping a plurality of glass sub-pieces to form the glass piece to be fused, and bonding two adjacent glass sub-pieces by an adhesive; In the step of fusing the glass piece to be fused, the adhesive is separated from the glass sub-pieces under the action of high temperature.

3. The glass fusing method according to claim 1 or 2, wherein the glass piece to be fused comprises a plurality of glass sub-pieces, the plurality of glass sub-pieces comprising a first glass sub-piece having a first fusing surface and a second glass sub-piece having a second fusing surface for fusing with the first fusing surface; the fusion device comprises a plurality of profiling members, and the plurality of profiling members define a bearing space therebetween, the bearing space having a shape identical to that of the glass composite to be fused; the fusing of the glass piece to be fused comprises: under the condition that the first fusing surface is in contact with the second fusing surface, pressing and heating the glass piece to be fused simultaneously to achieve fusion between the first glass sub-piece and the second glass sub-piece, wherein the pressure applied to the first fusing surface is 0.01 MPa to 0.9 MPa, and the fusing temperature is the strain point of the glass piece to be fused to the softening point of the glass piece to be fused plus 100°C.

4. The glass fusing method according to claim 3, wherein, the first fusing surface and the second fusing surface each have a roughness of less than or equal to 10 μm and a flatness of less than or equal to 100 μm, the pressure applied to the first fusing surface is 0.01 MPa to 0.2 MPa, and the fusing temperature is the strain point of the glass piece to be fused to the softening point of the glass piece to be fused; or the first fusing surface and / or the second fusing surface have a roughness greater than 10 μm and a flatness greater than 100 μm, the pressure applied to the first fusing surface is 0.2 MPa to 0.9 MPa, and the fusing temperature is the strain point temperature of the glass piece to be fused plus 50°C to the softening point temperature of the glass piece to be fused plus 100°C.

5. The glass fusing method according to claim 3, wherein, Before the step of placing the glass piece to be fused into the fusion device, further comprising: fixing the first fusing surface of the first glass sub-piece and the second fusing surface of the second glass sub-piece by using glue or adhesive tape; In the step of pressing and heating the glass piece to be fused simultaneously, the glue or adhesive tape is volatilized.

6. The glass frit method according to any one of claims 3 to 5, wherein the first glass sub-piece is two, and the second glass sub-piece is a plurality of, the plurality of second glass sub-pieces further having a third fusing surface and a fourth fusing surface, the third fusing surface being oppositely arranged with the second fusing surface, and the fourth fusing surface being in contact with both the second fusing surface and the third fusing surface; In the step of placing the glass pieces to be fused into the fusion device, the first fusion surface of one of the first glass sub-pieces is in contact with the second fusion surfaces of a plurality of the second glass sub-pieces, the first fusion surface of another of the first glass sub-pieces is in contact with the third fusion surfaces of a plurality of the second glass sub-pieces, and the fourth fusion surfaces of two adjacent second glass sub-pieces are in contact, so that the glass composite is a hollow polyhedral glass.

7. The glass fusing method according to claim 6, wherein, The first fusion surface of one of the first glass sub-pieces is provided with a through hole, and a corresponding support of one of the support members is also provided with a through hole. In the step of heating while applying pressure to the glass pieces to be fused, air is also introduced into the glass composite through the through hole. The pressure of the introduced air is 0.001 MPa to 0.6 MPa lower than the pressure applied to the first fusion surface. Optionally, the pressure of the introduced air is 0.05 MPa to 0.4 MPa lower than the pressure applied to the first fusion surface.

8. The glass fusing method according to claim 7, wherein, The pressure of the introduced air is 15 KPa to 800 KPa. Optionally, the pressure of the introduced air is 30 KPa to 500 KPa.

9. The glass frit method according to claim 7 or 8, wherein, The introduced air includes one or more of nitrogen, argon, hydrogen, and air.

10. The glass frit method according to any one of claims 1 to 9, wherein, The fusion time is 1 minute to 10 hours. Optionally, the fusion time is 30 minutes to 3 hours.

11. The glass frit method according to any one of claims 1 to 9, wherein, The absolute value of the difference between the expansion coefficient of the fusion device and the expansion coefficient of the glass pieces to be fused is not more than 50% of the expansion coefficient of the glass pieces to be fused. Optionally, the absolute value of the difference between the expansion coefficient of the fusion device and the expansion coefficient of the glass pieces to be fused is not more than 30% of the expansion coefficient of the glass pieces to be fused.

12. A fusing apparatus applied to the glass fusing method according to any one of claims 1 to 11, wherein The fusion device includes: A fixing assembly is formed with a bearing space for accommodating the glass pieces to be fused. When the glass pieces to be fused are located in the bearing space, the outer wall of the glass pieces to be fused and the inner wall of the bearing space are in close contact with each other.

13. The fusion device of claim 12, wherein, The fixing assembly is also formed with an avoiding space in communication with the bearing space. When the glass pieces to be fused are located in the bearing space, the adhesive member is located in the avoiding space.

14. The fusion device of claim 12, wherein, The fixing assembly includes a plurality of profiling members. All the profiling members surround the bearing space, and all the profiling members correspond to all the glass sub-pieces one by one. Each profiling member can be in close contact with the surface of the corresponding glass sub-piece. At least one of the profiling members can press the corresponding glass sub-piece.

15. The fusion device of claim 14, wherein, The plurality of glass sub-pieces includes a bottom glass sub-piece, a top glass sub-piece, and two side glass sub-pieces. The two side glass sub-pieces are spaced apart from each other along a first direction and are arranged on the bottom glass sub-piece. The top glass sub-piece is overlapped on one end of the two side glass sub-pieces away from the bottom glass sub-piece along a second direction intersecting the first direction. The plurality of profiling members comprises a top profiling member, a bottom profiling member and two side profiling members, the two side profiling members are arranged at intervals along the first direction and correspond to two side glass sub-members respectively, the bottom glass sub-member is arranged on the bottom profiling member, and the top profiling member is arranged on a side of the top glass sub-member away from the bottom glass sub-member. At least one of the side profiling members can press the side glass sub-member corresponding thereto in the second direction.

16. The fusion device of claim 15, wherein, Each of the side glass sub-members is provided with the adhesive member at two opposite ends in the first direction, and the adhesive member has an adhesive surface, the adhesive surface is adhered to a surface of the side glass sub-member abutting against the corresponding side profiling member, and the adhesive surface is perpendicular to the second direction.

17. The fusion device of claim 15, wherein, A side surface of the side profiling member abutting against the corresponding side glass sub-member is provided with a relief hole and / or a relief groove, and the adhesive member is located in the relief hole and / or the relief groove.

18. The fusion device of claim 15, wherein, The fixing assembly further comprises two connecting members and two pressing members, the two connecting members are respectively located on a side of each of the side profiling members away from the glass member to be fused, each of the connecting members extends longitudinally in the second direction, and two ends of each of the connecting members are connected to the bottom profiling member and the top profiling member respectively. Each of the side profiling members is provided with a guide inclined surface on a side thereof away from the bearing space, the guide inclined surface intersects the second direction, and each of the pressing members abuts between the guide inclined surface and the nearest connecting member.

19. The fusion device of claim 18, wherein, The pressing member is a cylinder, and an axis direction of the pressing member is parallel to the guide inclined surface.

20. The fusion device of claim 12, wherein, The fixing assembly comprises a bearing assembly, a plurality of side profiling members and a plurality of pressing members, the plurality of side profiling members are mounted on the bearing assembly and surround to form a bearing space for accommodating the glass member to be fused, and a surface of each of the side profiling members can be fitted with a circumferential side wall of the glass member to be fused. The plurality of pressing members correspond to the plurality of side profiling members one by one, each of the pressing members is arranged between the corresponding side profiling member and the bearing assembly, and is used for applying a pre-tightening force to the corresponding side profiling member towards the bearing space.

21. The fusion device of claim 20, wherein, The bearing assembly comprises a base, a top seat and a plurality of connecting members, the base and the top seat are arranged at intervals along the second direction, all the side profiling members are arranged between the base and the top seat, and the plurality of connecting members are arranged at intervals around the bearing space, two ends of each of the connecting members are connected to the base and the top seat respectively, and each of the pressing members is arranged between at least one of the connecting members and the corresponding side profiling member.

22. The fusion device of claim 21, wherein, Each of the side profiling members is provided with a guide inclined surface on a side thereof away from the bearing space, and the guide inclined surface intersects the second direction. Each of the connecting members extends longitudinally in the second direction, and each of the pressing members abuts between the guide inclined surface of the corresponding pressing member and the connecting member.

23. The fusion device of claim 22, wherein, The pressing member is a cylinder, and an axis direction of the pressing member is parallel to the guide inclined surface.

24. The fusion device of claim 21, wherein, The fixing assembly further comprises a bottom profiling member, which is installed on the base and can be in close contact with the bottom surface of the glass piece to be welded.

25. The fusion device of claim 20, wherein, The fixing assembly further comprises a top profiling member, which is placed on the top of the glass piece to be welded and can be in close contact with the top surface of the glass piece to be welded.

26. The fusion device of claim 25, wherein, The welding device further comprises a jacking member, which is installed on the bearing assembly. The glass piece to be welded has an opening in communication with the interior, and the jacking member can enter the interior of the glass piece to be welded through the opening and abut against the top of the glass piece to be welded.

27. The fusion device of claim 26, wherein, The jacking member is configured to apply a jacking force to the top of the glass piece to be welded towards the top profiling member.

28. The fusion device of claim 27, wherein, The fixing assembly further comprises a fixing member and a weight, the fixing member is installed on the bearing assembly, the middle part of the jacking member is swingably installed on the fixing member, and the weight is installed on one end of the jacking member in the longitudinal direction, and the other end of the jacking member extends into the interior of the glass piece to be welded through the opening and abuts against the top of the glass piece to be welded.

29. The fusion device of claim 12, wherein, The glass piece to be welded is formed with an opening in communication with the interior thereof; The fixing assembly comprises: An inflation port, which is in communication with the bearing space and faces the opening; An exhaust port, which is in communication with the bearing space and is located away from the opening.

30. The fusion device of claim 29, wherein, The fixing assembly comprises a top profiling member, a side profiling member, a flow dividing member, and a bottom profiling member, the side profiling member and the flow dividing member are arranged on the bottom profiling member at one end in the second direction, the side profiling member and the flow dividing member are provided with the top profiling member at the other end in the second direction, and the top profiling member, the side profiling member, the flow dividing member, and the bottom profiling member form the bearing space. The top profiling member and the bottom profiling member are respectively in close contact with the two ends of the glass piece to be welded in the second direction, the flow dividing member is in close contact with the circumferential sidewall of the glass piece to be welded, the flow dividing member faces the opening and is provided with the inflation port, and the bottom profiling member is provided with the exhaust port.

31. The fusion device of claim 30, wherein, The fixing assembly further comprises a bearing member, which is provided with a receiving cavity and a receiving port in communication with the receiving cavity, the top profiling member is installed on the bearing member and covers the receiving port, and the side profiling member, the flow dividing member, and the bottom profiling member are arranged in the receiving cavity.

32. The fusion device of claim 31, wherein, The top profiling member can be mutually buckled with the bearing member.

33. The fusion device of claim 31, wherein, The fixing assembly further comprises a pressing member, which is arranged on the side of the side profiling member away from the flow dividing member and can apply a pre-tightening force to the side profiling member towards the flow dividing member.

34. The fusion device of claim 33, wherein, The side profiling member is provided with a guide inclined surface, which is arranged obliquely relative to the second direction, and the pressing member abuts against the guide inclined surface and the bearing member.

35. The fusion device of claim 34, wherein, The pressing member is further provided with a contact inclined surface, which is parallel to the guide inclined surface and abuts against the guide inclined surface.

36. The fusion apparatus of claim 31, wherein, The top profiling piece is provided with an air inlet, and the top profiling piece, the bearing piece and the flow dividing piece are all provided with gas flow channels in communication with each other, the gas flow channel on the top profiling piece is in communication with the air inlet, and the gas flow channel on the flow dividing piece is in communication with the air filling port.

37. The fusion apparatus of claim 30, wherein, The glass pieces to be welded include a top glass sub-piece, a bottom glass sub-piece and a plurality of side glass sub-pieces, the top glass sub-piece and the bottom glass sub-piece are respectively arranged at two ends of all the side glass sub-pieces in a second direction, the plurality of side glass sub-pieces are sequentially connected and arranged around the top glass sub-piece and the bottom glass sub-piece, and the opening is formed between the first side glass sub-piece and the last side glass sub-piece. The plurality of side profiling pieces are sequentially connected and correspond to the plurality of side glass sub-pieces one by one, and the surface of each side profiling piece matches and is attached to the surface of the corresponding side glass sub-piece.

38. A glass processing apparatus, comprising: The welding device according to any one of claims 12-37.

39. A glass composite, wherein, Prepared by the glass welding method according to any one of claims 1-11. Prepared by the glass welding method according to any one of claims 1-11.

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