Production method of glass bottle neck and glass bottle
By stacking and welding multiple flat glass, a ring-shaped glass bottleneck is formed, which solves the problems of limited material selection and bubble impurities in the traditional glass bottleneck process, and achieves high-precision and low-cost glass bottleneck production.
Patent Information
- Application Number
- CN202510005433.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-04-15
AI Technical Summary
The pouring process of traditional glass bottlenecks cannot flexibly choose glass materials, which is prone to bubbles and impurities, affecting the performance and appearance of the product.
By stacking multiple flat glasses and performing welding treatment, hot-processing into an arc shape, then docking into an annular shape and performing a second welding treatment, a glass bottleneck is formed.
It realizes flexibility in material selection of glass bottlenecks, has smooth surface, high appearance accuracy, and is free of bubbles and impurities, reducing production costs and process complexity.
Smart Images
Figure CN119822615A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of glass processing, in particular to a method for producing a glass bottleneck and a glass bottle. Background Art
[0002] Figure 1 The bottleneck part of a thick-walled glass bottle is shown. In the production of thick-walled glass bottles, the bottleneck part is usually obtained by pouring molten glass into a contoured mold for pressing, cooling and demoulding, and then CNC shaping and polishing. However, the casting process cannot flexibly select materials, and is only suitable for high borosilicate glass with a very low thermal expansion coefficient, while soda-lime glass, aluminosilicate glass, especially high-quality high aluminosilicate glass, are not suitable for casting production. Furthermore, the casting process requires pouring molten glass into a mold, and this process is prone to produce bubbles and impurities, affecting product performance and appearance. Summary of the invention
[0003] Based on this, it is necessary to provide a method for producing a glass bottleneck and a glass bottle having the glass bottleneck to solve the problem that the bottleneck produced by the traditional casting process cannot flexibly select materials and is prone to produce bubbles and impurities.
[0004] The first aspect of the present invention is to provide a method for producing a glass bottleneck, the scheme is as follows:
[0005] A method for producing a glass bottleneck comprises the following steps:
[0006] Laminating a plurality of flat glass sheets and performing a first fusing process to obtain laminated glass;
[0007] Thermally processing the laminated glass into an arc shape to obtain an arc-shaped glass;
[0008] A plurality of the arc-shaped glasses are butt-jointed into a ring shape and subjected to a second fusion treatment to obtain a ring-shaped glass.
[0009] In some embodiments, before the step of butting a plurality of the arc-shaped glasses into a ring, the production method further comprises the following steps:
[0010] The arc-shaped glass is subjected to a first shaping process.
[0011] In some of the embodiments, the thickness of the laminated glass is 1 mm to 12 mm.
[0012] In some of the embodiments, the thickness of the flat glass is 0.1 mm to 6 mm.
[0013] In some embodiments, the flat glass is at least one of GG3 glass, aluminosilicate glass, soda-lime glass, borosilicate glass, phosphate glass, potassium glass, and quartz glass.
[0014] In some embodiments, the first welding process is performed by at least one of thermal welding and laser welding.
[0015] In some embodiments, the second welding process is performed by at least one of thermal welding and laser welding.
[0016] In some embodiments, the surface roughness of the locations where the arc-shaped glasses meet is less than or equal to 10 nm.
[0017] In some embodiments, the thermal processing is at least one of hot bending forming, hot pressing forming, self-weight forming and vacuum negative pressure forming.
[0018] In some embodiments, the production method further comprises the following steps:
[0019] The ring-shaped glass is subjected to a second shaping process.
[0020] In some embodiments, the production method further comprises the following steps:
[0021] The annular glass is polished.
[0022] The second aspect of the present invention is to provide a glass bottle, the scheme is as follows:
[0023] A glass bottle having a glass bottleneck produced by the production method described in any one of the above embodiments.
[0024] Compared with the traditional technology, the above-mentioned glass bottleneck production method and glass bottle have the following beneficial effects:
[0025] The above production method uses flat glass processing and lamination, and the obtained glass bottleneck has a good surface, high shape precision, no bubbles, impurities and other defects, and a wide range of materials and thickness. The thickness of the glass bottleneck is determined by the number of glass layers, and the thickness selection is relatively flexible, with a wide range of options, and does not require secondary high temperature such as melting above 1000°C, and bubbles and impurities are controllable.
[0026] The above-mentioned glass bottle has a glass bottleneck produced by the production method described in any of the above-mentioned embodiments, and can obtain corresponding beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 (a) and (b) are schematic diagrams of the structure of the bottleneck of a thick-walled glass bottle from different angles;
[0028] Figure 2 A flow chart of a method for producing a glass bottleneck according to an embodiment;
[0029] Figure 3(a) to (f) are schematic flow diagrams of a method for producing a glass bottleneck in one embodiment. DETAILED DESCRIPTION
[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] The invention provides a method for producing a glass bottleneck.
[0036] like Figure 2 As shown, a method for producing a glass bottleneck in one embodiment includes the following steps:
[0037] Step S1, such as Figure 3 As shown in (a) and (b), a plurality of flat glass sheets are stacked and subjected to a first fusion process to obtain laminated glass.
[0038] Step S2, such as Figure 3 As shown in (c) and (d), the laminated glass is heat-processed into an arc shape to obtain arc-shaped glass.
[0039] Step S3, such as Figure 3 As shown in (e) and (f), multiple arc-shaped glasses are butt-jointed into a ring shape and subjected to a second fusion treatment to obtain a ring-shaped glass.
[0040] The above production method uses flat glass processing and lamination, and the obtained glass bottleneck has a good surface, high shape precision, no bubbles, impurities and other defects, and a wide range of materials and thickness. The thickness of the glass bottleneck is determined by the number of glass layers, and the thickness selection is relatively flexible, with a wide range of options, and does not require secondary high temperature such as melting above 1000°C, and bubbles and impurities are controllable.
[0041] The flat glass used in the above-mentioned method for producing the glass bottleneck can be made of a variety of materials. For example, in step S1, the flat glass is at least one of GG3 glass (Gorilla Glass 3), aluminosilicate glass, soda-lime glass, borosilicate glass, phosphate glass, potassium glass, and quartz glass. Optionally, the materials of the plurality of flat glasses can be the same or different.
[0042] In step S1, the flat glass is processed by edge grinding, cutting, etc. to make the edge of the flat glass smoother. For example, the flat glass is edged by an edge grinder. The roller of the edge grinder is coated with diamond, the mesh number of the roller is 400, and the roller speed is 8000±200rpm.
[0043] In some of the examples, in step S1, the thickness of a single flat glass is 0.1 mm to 6 mm. Further, the thickness of the flat glass is 1 mm to 5 mm. In some specific examples, the thickness of the flat glass is 0.1 mm, 0.3 mm, 0.5 mm, 0.8 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, etc. Optionally, the thicknesses of the plurality of flat glasses may be the same or different.
[0044] In step S1, the laminated glass is formed by laminating and fusing a plurality of flat glass sheets. The number of flat glass sheets in the laminated glass is, for example, 2 to 100. Further, in step S1, the number of flat glass sheets in the laminated glass is 5 to 50. In some specific examples, the number of flat glass sheets in the laminated glass is 2, 4, 6, 8, 10, 20, 50, 70, 100, etc.
[0045] In some examples, in step S1, the thickness of the laminated glass is 1 mm to 12 mm. Further, the thickness of the laminated glass is 4 mm to 8 mm. In some specific examples, the thickness of the laminated glass is 1 mm, 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, etc.
[0046] Optionally, in step S1, the first welding process is performed by at least one of thermal welding and laser welding.
[0047] In some of the examples, in step S1, the first welding process includes heat welding. In some of the examples, the temperature of heat welding is 550℃~700℃, specifically 550℃, 570℃, 590℃, 610℃, 630℃, 650℃, 670℃, 690℃, 700℃, etc., or a range between any two of the above values. In some of the examples, the time of heat welding is 30min~90min, specifically 30min, 40min, 50min, 60min, 70min, 80min, 90min, etc. The welding temperature and time can be adjusted according to the material of the flat glass. In some of the examples, in step S1, the first welding process includes laser welding. Optionally, the laser used for laser welding is, for example, a picosecond infrared laser, a femtosecond infrared laser, etc.
[0048] Optionally, in step S2, the laminated glass may be in, but not limited to, an arc shape, an elliptical shape, etc. In some examples, in step S2, the laminated glass is in a semi-arc shape. In some examples, in step S2, the laminated glass is in a semi-elliptical arc shape.
[0049] like Figure 3As shown in (d), in some of the examples, before step S3, the method for producing a glass bottleneck further includes a step of performing a first shaping treatment on the curved glass.
[0050] Optionally, the first shaping process may be, but is not limited to, cutting, grinding, etc. In some examples, the first shaping process includes CNC cutting the curved glass to form the curved glass into a specific shape and size. Further, the first shaping process includes edge grinding of the curved glass to form a flat surface with edges butted against each other.
[0051] In some examples, the surface roughness of the position where the curved glass is connected is less than or equal to 10nm, so that the position where the curved glass is connected can be better fitted. For example, the surface roughness of the position where the curved glass is connected is 3nm~10nm. For example, the position where the curved glass is to be connected can be polished before the connection to form a flat connection surface.
[0052] Optionally, in step S3, the thermal processing may be, but is not limited to, at least one of hot bending, hot pressing, self-weight forming, and vacuum negative pressure forming. In some examples, in step S3, the laminated glass is thermally processed into an arc shape by hot bending.
[0053] In some of the examples, in step S3, the forming temperature of the hot working is 560°C to 880°C, for example, 570°C, 590°C, 610°C, 630°C, 650°C, 670°C, 690°C, 710°C, 730°C, 770°C, 790°C, 810°C, 830°C, 850°C, 870°C, etc., or a range between any two of the above values. In some of the examples, in step S3, the cycle of the hot working is 100s to 500s, for example, 100s, 150s, 200s, 250s, 300s, 350s, 400s, 450s, 500s, etc. The forming temperature and cycle can be adjusted according to factors such as the material and thickness of the flat glass.
[0054] In some examples, in step S3, the glass forming mold used in the thermal processing is a graphite mold. It can be understood that in other examples, in step S3, the material of the glass forming mold used in the thermal processing can also be but not limited to metal material, ceramic material or composite material.
[0055] In some of the examples, in step S3, the number of curved glasses is 2. In some of the examples, in step S3, two semi-circular curved glasses are butt-jointed and welded. It is understandable that in other examples, the number of curved glasses is not limited to 2, and may be 3, 4, etc., for example.
[0056] Optionally, in step S3, the second welding process is performed by at least one of thermal welding and laser welding.
[0057] In some of the examples, in step S3, the second welding treatment method includes thermal welding. In some of the examples, the temperature of thermal welding is 550°C~700°C, specifically 550°C, 570°C, 590°C, 610°C, 630°C, 650°C, 670°C, 690°C, 700°C, etc., or a range between any two of the above values. In some of the examples, the time of thermal welding is 30min~90min, specifically 30min, 40min, 50min, 60min, 70min, 80min, 90min, etc. The welding temperature and time can be adjusted according to the material of the flat glass. In some of the examples, in step S2, the second welding treatment method includes laser welding. Optionally, the laser used for laser welding is, for example, a picosecond infrared laser, a femtosecond infrared laser, etc.
[0058] In some of the examples, after step S3, the method for producing a glass bottleneck further includes a step of performing a second shaping process on the annular glass. Through the second shaping process, a glass bottleneck of a desired shape and size is obtained. In some of the examples, the second shaping process includes CNC cutting the annular glass.
[0059] In some examples, after step S3, the method for producing the glass bottleneck further includes a step of polishing the annular glass. The polishing process makes the glass bottleneck have a smooth and bright appearance. The polishing process is, for example, placing the annular glass in a medium such as cerium oxide for polishing.
[0060] The traditional casting process for producing glass bottlenecks has the following disadvantages:
[0061] 1. The casting process cannot flexibly select materials. It is only applicable to high borosilicate glass, but not other types of glass such as soda-lime glass and aluminosilicate glass. The reason is that high borosilicate glass has a lower thermal expansion coefficient, only about one-third of ordinary glass, which will reduce the impact caused by temperature gradient stress, thus having stronger fracture resistance. Even if the temperature changes suddenly, high borosilicate glass is not easy to break. However, other types of glass do not have the above properties and cannot use the casting process. Because high borosilicate glass contains boron oxide, its material cost is higher than other ordinary glasses, which is not conducive to reducing production costs.
[0062] 2. Casting production requires the glass raw materials to be melted at high temperature and poured into the mold. This process is prone to produce bubbles and impurities, which will affect the performance and appearance of the product.
[0063] 3. The casting process requires a lot of manual operation, resulting in low production efficiency.
[0064] Compared with traditional production methods, the glass bottleneck production method has the following technical advantages:
[0065] 1. There are many types of materials to choose from, such as GG3 glass, aluminosilicate glass, soda-lime glass, borosilicate glass, phosphate glass, potassium glass, quartz glass, etc. Low-cost glass materials can be selected to reduce production costs.
[0066] 2. The thickness of the glass bottleneck is determined by the number of glass layers. The thickness selection is flexible and the range of options is wide. The above production method does not require secondary high temperature such as melting above 1000℃, has a good surface, high shape accuracy, and controllable bubbles and impurities.
[0067] 3. Each process of the above production method can realize automated production and improve production efficiency.
[0068] Furthermore, the present invention also provides a glass bottle having a glass neck produced by any of the above-mentioned production methods. More specifically, the glass bottle comprises a bottle body and a glass neck produced by any of the above-mentioned production methods, and the bottle body is connected to the glass neck to form a bottle cavity.
[0069] The following specific examples are provided to further illustrate the present invention. The present invention provides the following specific examples for a better understanding of the present invention, but is not limited to the specific implementation methods and does not limit the protection scope of the present invention.
[0070] Example 1
[0071] This embodiment provides a method for producing a glass bottleneck, comprising the following steps:
[0072] Step 1, take a plurality of flat glass sheets made of GG3 glass. The thickness of a single flat glass sheet is 1 mm. Use an edge grinder to grind the flat glass sheets. The roller of the edge grinder is diamond-coated, the mesh number of the roller is 400 meshes, and the roller speed is 8000±200rpm.
[0073] Step 2: stack and heat-seal 10 flat glass sheets to obtain laminated glass. The heat-seal temperature is 700° C. and the heat-seal time is 30 minutes.
[0074] Step 3: Using a graphite mold, heat-bend the laminated glass obtained in step 2 into a semicircular arc shape to obtain arc-shaped glass. The temperature of the heat-bending process is 600° C., and the cycle of the heat processing is 500 seconds.
[0075] Step 4: CNC cutting is performed on the curved glass to form the curved glass into a specific shape and size. The position of the curved glass to be butted is polished to a roughness of less than 10 nm to form a flat butt surface.
[0076] Step 5: Two semicircular arc-shaped glasses are butt-jointed and heat-fused to obtain ring-shaped glass. The heat-fusion temperature is 700° C. and the heat-fusion time is 30 minutes.
[0077] Step 6, CNC cutting is performed on the ring-shaped glass, and then the ring-shaped glass is placed in a cerium oxide medium for polishing to obtain a glass bottleneck of a desired shape and size.
[0078] Example 2
[0079] This embodiment provides a method for producing a glass bottleneck, comprising the following steps:
[0080] Step 1, take a plurality of flat glass sheets, the material of which is aluminosilicate glass. The thickness of a single flat glass sheet is 2 mm. Use an edge grinder to grind the flat glass sheets. The roller of the edge grinder is diamond-coated, the mesh number of the roller is 400 meshes, and the roller speed is 8000±200rpm.
[0081] Step 2: stack and heat-seal five flat glass sheets to obtain laminated glass. The heat-seal temperature is 600° C. and the heat-seal time is 50 minutes.
[0082] Step 3: Using a graphite mold, heat-bend the laminated glass obtained in step 2 into a semicircular arc shape to obtain arc-shaped glass. The temperature of the heat-bending process is 600° C., and the cycle of the heat processing is 500 seconds.
[0083] Step 4: CNC cutting is performed on the curved glass to form the curved glass into a specific shape and size. The position of the curved glass to be butted is polished to a roughness of less than 10 nm to form a flat butt surface.
[0084] Step 5: Two semicircular arc-shaped glasses are butt-jointed and heat-fused to obtain ring-shaped glass. The heat-fusion temperature is 600° C. and the heat-fusion time is 50 minutes.
[0085] Step 6, CNC cutting is performed on the ring-shaped glass, and then the ring-shaped glass is placed in a cerium oxide medium for polishing to obtain a glass bottleneck of a desired shape and size.
[0086] Example 3
[0087] This embodiment provides a method for producing a glass bottleneck, comprising the following steps:
[0088] Step 1, take a plurality of flat glass sheets made of borosilicate glass. The thickness of a single flat glass sheet is 3 mm. Use an edge grinder to grind the flat glass sheets. The roller of the edge grinder is diamond-coated, the mesh number of the roller is 400 meshes, and the roller speed is 8000±200rpm.
[0089] Step 2: stack and heat-seal five flat glass sheets to obtain laminated glass. The heat-seal temperature is 650° C. and the heat-seal time is 90 minutes.
[0090] Step 3: Using a graphite mold, heat-bend the laminated glass obtained in step 2 into a semicircular arc shape to obtain arc-shaped glass. The temperature of heat-bending is 750° C., and the cycle of heat processing is 300 seconds.
[0091] Step 4: CNC cutting is performed on the curved glass to form the curved glass into a specific shape and size. The position of the curved glass to be butted is polished to a roughness of less than 10 nm to form a flat butt surface.
[0092] Step 5: Two semicircular arc-shaped glasses are butt-jointed and heat-fused to obtain ring-shaped glass. The heat-fusion temperature is 650° C. and the heat-fusion time is 90 minutes.
[0093] Step 6, CNC cutting is performed on the annular glass, and then the annular glass is placed in a medium such as cerium oxide for polishing to obtain a glass bottleneck of a desired shape and size.
[0094] Example 4
[0095] This embodiment provides a method for producing a glass bottleneck, comprising the following steps:
[0096] Step 1, take a plurality of flat glass sheets, the material of which is phosphate glass. The thickness of a single flat glass sheet is 2 mm. Use an edge grinder to grind the flat glass sheets. The roller of the edge grinder is diamond-coated, the mesh number of the roller is 400 meshes, and the roller speed is 8000±200rpm.
[0097] Step 2: stack and heat-seal 7 flat glass sheets to obtain laminated glass. The heat-seal temperature is 550° C. and the heat-seal time is 90 minutes.
[0098] Step 3: Using a graphite mold, heat-bend the laminated glass obtained in step 2 into a semicircular arc shape to obtain arc-shaped glass. The temperature of the heat-bending process is 600° C., and the cycle of the heat processing is 500 seconds.
[0099] Step 4: CNC cutting is performed on the curved glass to form the curved glass into a specific shape and size. The position of the curved glass to be butted is polished to a roughness of less than 10 nm to form a flat butt surface.
[0100] Step 5: Two semicircular arc-shaped glasses are butt-jointed and heat-fused to obtain ring-shaped glass. The heat-fusion temperature is 550° C. and the heat-fusion time is 90 minutes.
[0101] Step 6, CNC cutting is performed on the annular glass, and then the annular glass is placed in a medium such as cerium oxide for polishing to obtain a glass bottleneck of a desired shape and size.
[0102] Example 5
[0103] This embodiment provides a method for producing a glass bottleneck, comprising the following steps:
[0104] Step 1, take a plurality of flat glass sheets made of GG3 glass. The thickness of a single flat glass sheet is 1 mm. Use an edge grinder to grind the flat glass sheets. The roller of the edge grinder is diamond-coated, the mesh number of the roller is 400 meshes, and the roller speed is 8000±200rpm.
[0105] Step 2: stack 10 flat glass sheets and perform laser welding to obtain laminated glass.
[0106] Step 3: Using a graphite mold, heat-bend the laminated glass obtained in step 2 into a semicircular arc shape to obtain arc-shaped glass. The temperature of the heat-bending process is 600° C., and the cycle of the heat processing is 500 seconds.
[0107] Step 4: CNC cutting is performed on the curved glass to form the curved glass into a specific shape and size. The position of the curved glass to be butted is polished to a roughness of less than 10 nm to form a flat butt surface.
[0108] Step 5, using two semicircular arc-shaped glasses to butt joint and perform laser welding to obtain annular glass.
[0109] Step 6, CNC cutting is performed on the annular glass, and then the annular glass is placed in a medium such as cerium oxide for polishing to obtain a glass bottleneck of a desired shape and size.
[0110] The appearance evaluation of the products prepared in the above Examples 1 to 5 is shown in Table 1.
[0111] Table 1
[0112]
[0113] As can be seen from Table 1, the products prepared in Examples 1 to 5 above have good surfaces, are smooth and free of defects, have high shape precision, and are free of defects such as bubbles and impurities.
[0114] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0115] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims, and the description can be used to interpret the content of the claims.
Claims
1. A method for producing a glass bottleneck, characterized in that: The following steps are involved: Laminating a plurality of flat glass sheets and performing a first fusing process to obtain laminated glass; Thermally processing the laminated glass into an arc shape to obtain an arc-shaped glass; A plurality of the arc-shaped glasses are butt-jointed into a ring shape and subjected to a second fusion treatment to obtain a ring-shaped glass.
2. The method for producing a glass bottleneck according to claim 1, characterized in that: Before the step of butting a plurality of the arc-shaped glasses into a ring, the production method further comprises the following steps: The arc-shaped glass is subjected to a first shaping process.
3. The method for producing a glass bottleneck according to claim 1, characterized in that: The thickness of the laminated glass is 1 mm to 12 mm.
4. The method for producing a glass bottleneck according to claim 1, characterized in that: The production method meets at least one of the following characteristics (1) to (2): (1) The thickness of the flat glass is 0.1 mm to 6 mm; (2) The flat glass is at least one of GG3 glass, aluminosilicate glass, soda-lime glass, borosilicate glass, phosphate glass, potassium glass, and quartz glass.
5. The method for producing a glass bottleneck according to claim 1, characterized in that: The production method meets at least one of the following characteristics (1) to (2): (1) The first welding process is at least one of thermal welding and laser welding; (2) The second welding process is performed by at least one of thermal welding and laser welding.
6. The method for producing a glass bottleneck according to claim 1, characterized in that: The surface roughness of the positions where the arc-shaped glasses are connected is less than or equal to 10 nm.
7. The method for producing a glass bottleneck according to claim 1, characterized in that: The thermal processing is at least one of hot bending forming, hot pressing forming, self-weight forming and vacuum negative pressure forming.
8. The method for producing a glass bottleneck according to claim 1, characterized in that: The production method further comprises the following steps: The ring-shaped glass is subjected to a second shaping process.
9. The method for producing a glass bottleneck according to any one of claims 1 to 8, characterized in that: The production method further comprises the following steps: The annular glass is polished.
10. A glass bottle, characterized in that: A glass bottleneck produced by the production method according to any one of claims 1 to 9.