Reasonable stress single-piece non-insulating fireproof glass and preparation method thereof

Abstract

The present application discloses a reasonable stress monolithic non-insulating fireproof glass and a preparation method thereof, wherein the reasonable stress monolithic non-insulating fireproof glass comprises soda-lime-silica glass and / or low-iron silicate glass made based on a float process, and a thin film formed on the surface of the soda-lime-silica glass and / or low-iron silicate glass, wherein the thin film is arranged in one layer and / or multiple layers; the preparation method comprises the following steps: obtaining a substrate, and obtaining a first-generation substrate by pre-treating the substrate; coating the surface of the first-generation substrate, and forming one layer and / or multiple layers of thin film on the surface of the first-generation substrate to obtain an initial substrate; introducing stress into the surface of the coated initial substrate, and heat-treating the initial substrate with stress; and post-treating the initial substrate after heat treatment to obtain a reasonable stress monolithic non-insulating fireproof glass; the glass made based on the float process ensures thermal insulation performance while providing good optical performance, and avoids cracking, falling off or loss of supporting capacity through the thin film, so as to have a good fireproof effect.

Description

Technical Field

[0001] The invention relates to the technical field of glass manufacturing, in particular to a reasonable stress single-piece non-insulating fireproof glass and a preparation method thereof. Background Art

[0002] With the continuous development of the construction industry and the improvement of people's safety awareness, the application of fire-resistant glass in buildings has become more and more extensive. In order to meet the safety needs of buildings, fire-resistant glass needs to have the characteristics of heat insulation, fire prevention, and anti-theft. However, there are some problems with the existing fire-resistant glass manufacturing method. It is not only complicated in process and high in cost, but also still has shortcomings in stress control and fire resistance. Among them, in terms of stress control, uneven stress distribution may cause deformation or breakage of the glass, affecting the fire resistance and service life of the glass. In addition, the existing fire-resistant glass manufacturing method usually involves multiple complex process steps, including cutting, edging, cleaning, coating, heat treatment, etc. These steps require precise control and operation, otherwise the quality of the finished product may be unstable, so that under the action of high temperature or flame, the glass may break, fall off or lose its supporting ability, thereby allowing flames and high-temperature gases to penetrate, threatening the safety of people in the building. In addition, the manufacture of fire-resistant glass also requires the use of expensive equipment, materials and labor, so the manufacturing cost is also high. Summary of the invention

[0003] In order to solve the technical problems that the existing fire-resistant glass and its preparation method are insufficient in stress control and fire-resistant performance, and the manufacturing cost is high, the present application provides a reasonable stress single-piece non-insulating fire-resistant glass and its preparation method.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: a reasonable stress single-piece non-insulating fire-proof glass, including soda-lime-silica glass and / or low-iron silicate glass made based on the float process, and a thin film formed on the surface of the soda-lime-silica glass and / or low-iron silicate glass, and the thin film is arranged in one layer and / or multiple layers.

[0005] In order to solve the above problems, the present application also provides a method for preparing a reasonable stress monolithic non-insulating fireproof glass, which is used to prepare a reasonable stress monolithic non-insulating fireproof glass as described in any of the above items, comprising the following steps: obtaining a substrate, and performing pretreatment on the substrate to obtain a first-generation substrate; coating the surface of the first-generation substrate to form a layer and / or multiple layers of thin film on the surface of the first-generation substrate to obtain an initial substrate; introducing stress into the surface of the coated initial substrate, and heat-treating the initial substrate with stress; and post-treating the initial substrate after heat treatment to obtain a reasonable stress monolithic non-insulating fireproof glass.

[0006] As one of the optimized embodiments of the present invention, the pretreatment is any one of polishing, cleaning and drying.

[0007] As one of the optimized implementation schemes of the present invention, a first-generation substrate is obtained by pre-processing the substrate, specifically: a polishing device, an ultrasonic cleaning device and a detection device are obtained, the substrate is polished by the polishing device, and deionized water is used to clean the substrate by an ultrasonic cleaning device, the cleaned substrate is dried, and the dried substrate is transported to the detection device to check whether it meets the standards. If the detection device shows that the standards are met, a first-generation substrate is obtained; if the detection device shows that the standards are not met, the pre-processing is repeated based on the substrate.

[0008] As one of the optimized embodiments of the present invention, the film includes one or more of a ceramic material, a metal material and an inorganic non-metallic material.

[0009] As one of the optimized implementation schemes of the present invention, the coating treatment is carried out by a method of physical vapor deposition or chemical vapor deposition.

[0010] As one of the optimized implementation schemes of the present invention, stress is introduced into the initial substrate surface after coating, specifically: stress is introduced into the initial substrate surface after coating by using either laser induction method or ion beam induction method.

[0011] As one of the optimized implementation schemes of the present invention, the initial substrate with stress is subjected to heat treatment, specifically: a heat treatment furnace is obtained, the initial substrate with stress is sent into the heat treatment furnace, and high-temperature heat treatment is performed by step-by-step or continuous heating.

[0012] As one of the optimized embodiments of the present invention, the post-processing is any one of cutting, edge grinding and tempering.

[0013] As one of the optimized implementation schemes of the present invention, the stress of the initial substrate after heat treatment is adjusted by mechanical or physical methods, and measured by either X-ray diffraction or polarized light method, and then a reasonable stress monolithic non-insulating fireproof glass is obtained by post-processing.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The reasonable stress monolithic non-insulating fireproof glass of the present application adopts glass made based on the float process, including soda-lime-silica glass, low-iron silicate glass, etc. Soda-lime-silica glass has good high temperature resistance and high strength; low-iron silicate glass has a low thermal expansion coefficient, can remain stable in a high temperature environment, and can provide good optical properties and thermal insulation properties. The thin film formed on the surface enables it to remain stable in a high temperature environment to avoid it from breaking, falling off or losing its supporting ability. It can maintain its integrity during a fire and prevent the spread of fire, thereby improving the overall fireproof effect of the glass, reducing the damage to buildings caused by fire, and reducing production costs.

[0016] 2. Regarding the preparation of reasonable stress monolithic non-insulating fireproof glass, firstly, pretreatment is carried out based on the substrate to ensure that each piece of glass is finely processed to obtain a first-generation substrate, which is beneficial to the subsequent steps of the process; then the first-generation substrate is coated to form a layer and / or multiple layers of thin film to obtain an initial substrate, and the thin film is made of a material with fireproof performance. By controlling the relevant parameters of the coating process, the performance of the thin film is optimized to have good fireproof performance; after the coating is completed, reasonable stress is introduced according to the performance of the initial substrate to improve the stability and safety of the substrate and reduce the risk of breakage during use, and high-temperature heat treatment is carried out to promote chemical bonding and physical fusion between the thin film and the initial substrate by controlling the temperature and time of the heat treatment, so that the thin film on the surface of the glass is fully combined with the initial substrate, and the adhesion and overall performance of the thin film and the initial substrate are improved; finally, post-processing is carried out to detect and adjust the stress distribution of the initial substrate that has completed the previous work to ensure the stability and reliability of the product, so as to obtain a reasonable stress monolithic non-insulating fireproof glass; and the preparation method has a simple process and is easy to operate, and can be mass-produced, which is conducive to improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 It is a schematic structural diagram of a reasonable stress single-piece non-insulating fireproof glass provided by the first embodiment of the present invention.

[0019] Figure 2 It is a schematic flow chart of the steps of a method for preparing a reasonable stress single-piece non-insulating fireproof glass provided by the second embodiment of the present invention.

[0020] In the figure:

[0021] 1. Reasonable stress single-piece non-insulating fire-resistant glass; 10. Soda-lime-silica glass and / or low-iron silicate glass; 11. Thin film. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] See also Figure 1 A reasonable stress monolithic non-insulating fire-resistant glass 1 is provided in the first embodiment of the present invention, comprising soda-lime-silica glass and / or low-iron silicate glass 10 made based on the float process, and a film 11 formed on the surface of the soda-lime-silica glass and / or low-iron silicate glass 10, wherein the film 11 is arranged in one layer and / or multiple layers.

[0029] It is explained that the specific implementation steps of the float process are to mix various raw materials in proportion according to the required glass composition and quality requirements. These raw materials usually include silicate minerals, limestone, soda ash, etc.; put the mixed raw materials into a high-temperature furnace and heat them to a molten state. During the melting process, the silicate minerals in the raw materials will chemically react with other components to form silicate glass; then the molten glass liquid is introduced into a tin bath supported by refractory materials, and after forming a layer of film with the molten tin liquid in the tin bath, it enters the cooling zone; in the cooling zone, the glass plate is cooled and shaped, and then cut into the required shape and size by a cutting machine; in order to eliminate the internal stress in the glass, annealing treatment is required, and during the annealing process, the glass plate is slowly heated to a certain temperature and then slowly cooled, and finally the glass plate forming the substrate is subjected to quality inspection, such as thickness, flatness, optical properties, etc., to obtain the substrate required for preparing a reasonable stress single-piece non-insulating fireproof glass.

[0030] It can be explained that the base material of the glass made based on the float process is soda-lime-silica glass or low-iron silicate glass, among which soda-lime-silica glass is an alkaline earth salt glass with good fire resistance, high strength and hardness. Under high temperature conditions, even if soda-lime-silica glass melts and softens, it will not burn and will not cause personal safety. It also has high chemical stability, strong corrosion resistance, and can adapt to various environmental conditions.

[0031] Preferably, in this embodiment, the substrate is low-iron silicate glass 10, whose main components include silicate, iron and other trace elements, and the iron content is relatively low, generally controlled between 1% and 3%, which can reduce the absorption and scattering loss of light, has excellent transparency, hardness and high temperature resistance, can extend the service life of the glass, has low thermal conductivity, higher heat resistance and chemical stability, and can also improve its UV resistance, so that it has higher stability in outdoor environments.

[0032] It can be understood that the reasonable stress monolithic non-insulating fireproof glass 1 of the present application adopts glass made based on the float process, including soda-lime-silica glass, low-iron silicate glass, etc. Soda-lime-silica glass has good high temperature resistance and high strength; low-iron silicate glass has a lower thermal expansion coefficient, can remain stable in a high temperature environment, and can provide good optical properties and thermal insulation properties. The thin film 11 formed on the surface enables it to remain stable in a high temperature environment, avoiding its breakage, falling off or loss of supporting capacity, and can maintain its integrity during a fire, prevent the spread of fire, improve the overall fireproof effect of the glass, reduce the damage to buildings caused by fire, and also reduce production costs.

[0033] Please combine Figure 1 and Figure 2A method for preparing a reasonable stress monolithic non-insulating fireproof glass provided in the second embodiment of the present invention is used to prepare the reasonable stress monolithic non-insulating fireproof glass 1 provided in the first embodiment of the present invention, comprising the following steps:

[0034] S1: Obtain a substrate, and perform pretreatment on the substrate to obtain a first-generation substrate;

[0035] S2: performing a coating process on the surface of the first-generation substrate to form a layer and / or multiple layers of thin films on the surface of the first-generation substrate to obtain an initial substrate;

[0036] S3: introducing stress into the surface of the initial substrate after coating, and heat treating the initial substrate with stress;

[0037] S4: Post-processing is performed based on the initial substrate after heat treatment to obtain a single piece of non-insulating fire-resistant glass with reasonable stress.

[0038] It is explained that the substrate uses soda-lime silicon or low-iron silicate as the base material, and is made into a glass plate of the desired shape and size through the float process; the float process principle is to utilize the fluidity of molten glass, and at a certain temperature and pressure, by controlling the speed and direction, the molten glass liquid is evenly spread on the metal tin. This process is used to ensure that the surface tension of the glass liquid is effectively controlled, so that the glass surface is flat, smooth, and the thickness is uniform, so as to improve product quality.

[0039] It can be understood that, with regard to the preparation of reasonable stress monolithic non-insulating fireproof glass, firstly, pretreatment is carried out based on the substrate to ensure that each piece of glass is finely processed to obtain a first-generation substrate, which is beneficial to the subsequent steps of the process; then the first-generation substrate is coated to form a layer and / or multiple layers of thin film to obtain an initial substrate, and the thin film is made of a material with fireproof properties. By controlling the relevant parameters of the coating process, the performance of the thin film is optimized to have good fireproof properties; after the coating is completed, reasonable stress is introduced according to the performance of the initial substrate to improve the stability and safety of the substrate and reduce the risk of breakage during use, and high-temperature heat treatment is carried out to promote the chemical bonding and physical fusion between the thin film and the initial substrate by controlling the temperature and time of the heat treatment, so that the thin film on the surface of the glass is fully combined with the initial substrate, and the adhesion and overall performance of the thin film and the initial substrate are improved; finally, post-processing is carried out to detect and adjust the stress distribution of the initial substrate that has completed the previous work to ensure the stability and reliability of the product, so as to obtain a reasonable stress monolithic non-insulating fireproof glass; and the preparation method has a simple process and is easy to operate, and can be mass-produced, which is conducive to improving production efficiency and reducing production costs.

[0040] Further, the pretreatment is any one of polishing, cleaning and drying.

[0041] It is explained that the pretreatment of the substrate is to ensure the smooth progress of the subsequent processes; among them, polishing is to improve the flatness and smoothness of the substrate surface, cleaning is to remove dirt, moisture and residue on the substrate surface, and drying is to ensure the smooth progress of the subsequent coating process, ensuring that each substrate is finely processed.

[0042] Furthermore, step S1 is specifically as follows:

[0043] Obtain polishing equipment, ultrasonic cleaning equipment and testing equipment, polish the substrate with the polishing equipment, and use deionized water to clean it with ultrasonic cleaning equipment. Dry the cleaned substrate and send the dried substrate to the testing equipment to check whether it meets the standards. If the testing equipment shows that it meets the standards, a first-generation substrate is obtained; if the testing equipment shows that it does not meet the standards, repeat the pretreatment based on the substrate.

[0044] To better explain, polishing equipment is a kind of equipment used for surface treatment, which mainly uses mechanical, chemical and physical effects to make the surface of the workpiece smooth and flat, and the Ra value meets the requirements; ultrasonic cleaning equipment is a kind of equipment that uses high-frequency sound waves to produce cavitation in the liquid to achieve the purpose of cleaning, which can ensure the cleaning effect while meeting the requirements of energy saving and environmental protection; testing equipment is a kind of equipment that detects, measures and analyzes products or equipment to ensure that their quality meets the standards or requirements.

[0045] It can be explained that the substrate is polished by polishing equipment to ensure the flatness and smoothness of the substrate surface and improve the appearance quality of the product; then deionized water is used to clean it by ultrasonic cleaning equipment to remove dirt, moisture and residues on the substrate surface and ensure the adhesion and uniformity of the coating layer; wherein, deionized water refers to pure water after the impurities in the form of ions are removed, and its water quality is pure and free of impurities, which can ensure that other ionic impurities will not be introduced during the cleaning process. It is used for ultrasonic cleaning to produce cavitation effect in the liquid to achieve the purpose of cleaning the substrate surface. The surface tension of deionized water is low, which helps the cleaning liquid to form a uniform film on the substrate surface, improving The deionized water has good solubility and can effectively transfer the active ingredients in the cleaning solution to the surface of the substrate. It has low corrosion to the surface of the substrate, which improves the cleaning effect while reducing the damage to the surface of the substrate caused by the cleaning process, thereby protecting the integrity of the substrate. The cleaned substrate is then dried to remove moisture, solvents and other impurities attached to the surface of the substrate to prevent the influence of water vapor on the coating layer. The dried substrate is transported to the testing equipment to check whether it meets the standards. If the testing equipment shows that it meets the standards, a first-generation substrate is obtained. If the testing equipment shows that it does not meet the standards, the pretreatment is repeated based on the substrate. This setting is used to ensure that each substrate is finely processed.

[0046] Furthermore, the film includes one or more of a ceramic material, a metal material, and an inorganic non-metallic material.

[0047] It is explained that after the coating treatment in step S2, a layer and / or multiple layers of thin film are formed on the surface of the first-generation substrate to obtain an initial substrate, which can significantly improve the overall fire resistance of the glass. Among them, the main materials of the thin film are ceramic materials, metal materials and inorganic non-metallic materials, that is, the material with fire resistance itself is attached to the surface of the first-generation substrate to obtain the initial substrate, which can effectively prevent the spread of flames and heat transfer, and reduce the harm of flames to buildings and personnel; the multi-layer coating technology can stack thin films of different materials together to obtain better fire resistance; the composite coating technology combines thin films with different functions together, so that the glass has multiple functions such as fire prevention, heat insulation, and radiation protection.

[0048] Furthermore, the coating process is carried out by a method of physical vapor deposition or chemical vapor deposition.

[0049] To explain better, physical vapor deposition (PVD) refers to the process of transferring matter by physical process, transferring atoms or molecules from the source to the substrate surface. That is, high-energy particles bombard the target surface to evaporate the atoms or molecules on the target surface and deposit on the glass surface to form a thin film. It has the advantages of strong adhesion and high density, and can effectively improve the fire resistance of glass.

[0050] Chemical vapor deposition (CVD) refers to a gas phase reaction under high temperature, that is, by introducing a mixed gas containing the elements that make up the thin film into the reaction chamber, the gas undergoes a chemical reaction on the glass surface under the action of high temperature and catalyst to form a thin film. This method has the advantages of fast deposition speed and strong adhesion, and can effectively improve the fire resistance of glass.

[0051] Sputtering coating uses high-energy particles to bombard the surface of the target material, so that the atoms or molecules on the surface of the target material are sputtered out and deposited on the glass surface to form a thin film. It also has the advantages of strong adhesion and high density, and can effectively improve the fire resistance of glass.

[0052] It can be explained that by coating through any of the above methods, a layer and / or multiple layers of thin films with fire-resistant properties are formed on the surface of the first-generation substrate to obtain an initial substrate, so as to improve the fire-resistant properties of the initial substrate, effectively prevent the spread of flames and heat transfer, reduce the damage caused by flames to buildings or people in buildings, and have higher safety performance.

[0053] Furthermore, in step S3, stress is introduced into the surface of the initial substrate after coating, specifically:

[0054] Either laser induction or ion beam induction is used to introduce stress on the initial substrate surface after coating.

[0055] It is explained that introducing stress to the initial substrate can improve the performance of the glass and extend its service life; it can be explained that during the production process of the initial substrate, there are mainly three types of stress, namely temperature stress, chemical stress and mechanical stress. Among them, temperature stress refers to the thermal stress generated inside the initial substrate due to the existence of temperature gradient. When the initial substrate is cooled to room temperature, the thermal stress will cause it to warp, crack and other phenomena; if the chemical composition in the initial substrate is uneven, chemical stress will be generated inside the initial substrate, and this stress will cause scratches, corrosion and other phenomena to appear on the surface of the initial substrate; and if the initial substrate is subjected to external force, mechanical stress will be generated, and uneven force for a long time will cause the initial substrate to break.

[0056] Therefore, a reasonable stress is introduced, and then the stress distribution of the initial substrate is adjusted through the heat care furnace, that is, the stress distribution is regulated by controlling factors such as the heating rate, the holding time and the cooling rate; specifically, controlling the heating rate can suppress the stress caused by the difference in thermal expansion coefficient between the film material and the substrate glass. This setting is used to avoid deformation or cracking of the initial substrate due to excessive temperature difference; the film material can also be fully melted and infiltrated by controlling the holding time, and the crystallization and phase change process of the film material can be adjusted by controlling the cooling rate to achieve more accurate stress distribution control; in order to achieve more accurate stress distribution control, the holding time can also be controlled to ensure that the film material is fully melted and infiltrated. In addition, controlling the cooling rate can adjust the crystallization and phase change process of the film material.

[0057] Preferably, through stress control, the stress level inside the initial substrate can be reduced, the fatigue resistance and service life of the initial substrate can be improved, the risk of breakage of the initial substrate during transportation, installation and use can be reduced, and personal and property safety can be guaranteed; and the performance of the initial substrate can be optimized, product quality can be improved, and the defective rate can be reduced, thereby saving manufacturing costs.

[0058] Specifically, in this embodiment, the range of stress distribution control of the initial substrate is different for different environments; for example, in the construction industry, the initial substrate needs to withstand loads such as wind loads and deadweight, and the optimization focus of the stress distribution is to improve the bending strength of the glass; or in the home furnishing industry, the initial substrate needs to withstand impact loads, and the optimization focus of the stress distribution is on impact resistance; that is, according to different use environments, the stress range is adjusted and the stress distribution is optimized to improve the relevant performance of the initial substrate.

[0059] Furthermore, in step S3, the initial substrate with stress is subjected to heat treatment, specifically:

[0060] Obtain a heat treatment furnace, send the initial substrate with stress into the heat treatment furnace, and perform high-temperature heat treatment by step-by-step or continuous heating.

[0061] To better explain, the heat treatment furnace is based on the phase change law of metal materials. By controlling parameters such as temperature, time, and atmosphere, the metal material undergoes phase change and structural transformation during the heating and cooling process, so as to achieve precise control of the initial stress distribution of the coating substrate and improve its bonding strength and service life.

[0062] Specifically, in the present embodiment, the heat treatment furnace refers to a high stress tempering furnace, which mainly realizes the heat treatment process of the initial substrate of the coating by providing precise temperature control and uniform thermal environment; first, the high stress tempering furnace has high-precision temperature control capability. During the heat treatment process, the temperature affects the bonding strength and stress distribution between the film and the initial substrate. It is usually equipped with advanced temperature control systems and sensors to control the temperature error within the range of ±0.1°C to ensure the effect of the heat treatment and the stability of the quality; then, the high stress tempering furnace has a uniform thermal environment to avoid deformation or cracking due to excessive temperature differences. It usually adopts advanced heating technology and uniformly distributed heating elements to ensure the uniformity and stability of the temperature field in the furnace, and the airflow and pressure distribution in the furnace will also be precisely controlled to ensure the stability and quality of the initial substrate during the heat treatment process; finally, the high stress tempering furnace also has flexible process adjustment capabilities, and is usually equipped with a programmable controller (PLC) and a human-machine interface (HMI). The operator can flexibly adjust according to different production requirements and process parameters to achieve personalized production needs.

[0063] It can be explained that the initial substrate is heat treated in a high-stress tempering furnace, which has high temperature control accuracy and uniformity, and provides a stable heat treatment environment for the initial substrate. The coated initial substrate is sent into the heat treatment furnace and heated to above the melting point or softening point of the film material within a certain temperature range to ensure that the film material is fully melted and penetrates into the first-generation substrate. A certain heating time is maintained to allow the first-generation substrate and the film to be fully bonded, ensuring the bonding strength and service life.

[0064] Furthermore, post-processing is any one of cutting, edging and tempering; it can be explained that the post-processing of the initial substrate is to ensure the appearance performance of the initial substrate and to ensure that each piece of fire-resistant glass meets the design requirements and safety standards; among them, cutting is to process it into a size and shape that meets the user's requirements; edging is to make the edge of the initial substrate smoother and neater to prevent safety hazards caused by sharp edges; tempering treatment is to instantly increase the surface temperature of the initial substrate to produce compressive stress on the surface of the initial substrate, thereby improving its impact resistance and safety of use.

[0065] Furthermore, the specific implementation steps of step S4 are:

[0066] The initial substrate after heat treatment is subjected to stress adjustment by mechanical or physical methods, and is measured by either an X-ray diffraction method or a polarized light method, and then a reasonable stress single-piece non-insulating fireproof glass is obtained through post-processing.

[0067] It is explained that the initial substrate after heat treatment is subjected to stress adjustment by mechanical or physical methods to change its stress distribution, wherein, in this embodiment, the mechanical method refers to mechanical bending, in which the initial substrate is bent or twisted by mechanical force; the physical method refers to physical stretching, in which the initial substrate is stretched or extended by using special equipment; both methods enable the initial substrate to select and adjust stress according to actual needs to achieve the best stress distribution effect.

[0068] The purpose of stress distribution detection is to evaluate the accuracy and uniformity of stress distribution on the initial substrate, so as to know the safety of the initial substrate and reduce its potential risks. Either X-ray diffraction or polarized light method is used for measurement. X-ray diffraction is a non-destructive testing method that analyzes the crystal structure and stress distribution of the initial substrate by measuring the diffraction angle of X-rays in the initial substrate. The polarized light method uses the special properties of polarized light to detect the stress distribution of the glass plate. Both methods can provide accurate stress distribution information, so that operators can make adjustments and optimizations based on known information, achieve reasonable stress distribution, enhance the mechanical properties and fire resistance of the initial substrate, and enable it to remain stable and safe in high temperature environments. At the same time, the initial substrate that has been precisely adjusted and tested can better meet the use requirements of different occasions and improve its applicability and reliability.

[0069] Finally, a single piece of non-insulating fireproof glass with reasonable stress is obtained after post-processing, that is, the prepared initial substrate is cut, edged and tempered to obtain a single piece of non-insulating fireproof glass with reasonable stress, that is, the fireproof glass that meets the requirements is subjected to appearance inspection, performance testing and packaging for subsequent production and utilization. Among them, the appearance inspection is to check the surface quality and dimensional accuracy of the fireproof glass; the performance test includes testing the fireproof performance and mechanical properties of the fireproof glass to avoid potential safety hazards in advance; and the packaging is to protect it from damage during transportation.

[0070] Working principle: In this embodiment, firstly, high-quality, heat-resistant, and light-transmitting low-iron silicate float flat glass is selected as the substrate; then, pretreatment operations such as polishing, cleaning, and drying are performed to remove impurities on the substrate, and detection equipment is used for detection to ensure the smoothness of subsequent operations. If the standards are not met, the pretreatment operations are repeated; if the standards are met, a first-generation substrate is obtained and enters the subsequent coating process; based on the first-generation substrate, a layer and / or multiple layers of thin films containing refractory materials are coated on the surface by any of physical vapor deposition, chemical vapor deposition, and sputtering coating methods to improve its fireproof performance to obtain an initial substrate; then, laser induction or ion beam is used to coat the surface of the substrate with a layer and / or multiple layers of thin films containing refractory materials to improve its fireproof performance to obtain an initial substrate; then, laser induction or ion beam is used to coat the surface of the substrate with a layer and / or multiple layers of thin films containing refractory materials to improve its fireproof performance to obtain an initial substrate. The induction method introduces reasonable stress on the surface of the substrate after coating, controls the stress distribution of the initial substrate, improves the stability of the product, and reduces the risk of breakage during use; the initial substrate with stress is sent to a heat treatment furnace and heat treated by either a step-by-step or continuous heating method, so that the initial substrate is completely combined with the film on its surface, and the stress distribution is more uniform; the stress of the initial substrate after heat treatment is further adjusted and tested to reasonably distribute the stress, thereby enhancing the mechanical properties and fire resistance of the initial substrate; finally, post-processing operations such as cutting, edge grinding, and tempering are performed to obtain a single piece of non-insulating fireproof glass with reasonable stress to meet the use requirements.

[0071] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for preparing a reasonable stress single-piece non-insulating fireproof glass, which is used to prepare a reasonable stress single-piece non-insulating fireproof glass, characterized in that: The reasonable stress single-piece non-insulating fireproof glass comprises low-iron silicate glass and a film formed on the surface of the low-iron silicate glass, wherein the film is provided in one or more layers. The preparation method comprises the following steps: Obtaining a substrate, and performing pre-processing on the substrate to obtain a first-generation substrate; Performing a coating treatment on the surface of the first-generation substrate to form one or more thin films on the surface of the first-generation substrate to obtain an initial substrate; Introducing stress into the surface of the coated initial substrate, and subjecting the initial substrate with stress to heat treatment; Post-processing is performed based on the initial substrate after heat treatment to obtain a single piece of non-insulating fireproof glass with reasonable stress; The step of introducing stress to the surface of the initial substrate after coating is specifically: introducing stress to the surface of the initial substrate after coating by using either a laser induction method or an ion beam induction method; The initial substrate with stress is subjected to heat treatment, specifically, a heat treatment furnace is obtained, the initial substrate with stress is sent into the heat treatment furnace, and high-temperature heat treatment is performed by step-wise or continuous heating.

2. The method for preparing the reasonable stress single-piece non-insulating fireproof glass according to claim 1, characterized in that: The pretreatment is any one of polishing, cleaning and drying.

3. The method for preparing the reasonable stress single-piece non-insulating fireproof glass according to claim 2, characterized in that: A first-generation substrate is obtained by performing pretreatment on the substrate, specifically: obtaining a polishing device, an ultrasonic cleaning device and a testing device, polishing the substrate by the polishing device, and cleaning the substrate by using deionized water through an ultrasonic cleaning device, drying the cleaned substrate, and transporting the dried substrate to a testing device for inspection to see if it meets the standards. If the testing device shows that it meets the standards, a first-generation substrate is obtained; If the testing equipment shows that the standard is not met, the pretreatment is repeated based on the substrate.

4. The method for preparing the reasonable stress single-piece non-insulating fireproof glass according to claim 1, characterized in that: The thin film includes one or more of a metal material and an inorganic non-metal material.

5. The method for preparing the reasonable stress single-piece non-insulating fireproof glass according to claim 4, characterized in that: The coating process may be carried out by physical vapor deposition or chemical vapor deposition.

6. The method for preparing the reasonable stress single-piece non-insulating fireproof glass according to claim 1, characterized in that: The post-processing is any one of cutting, edge grinding and tempering.

7. The method for preparing the reasonable stress single-piece non-insulating fireproof glass according to claim 6, characterized in that: The stress of the initial substrate after heat treatment is adjusted by physical method, and after measurement by either X-ray diffraction method or polarized light method, a reasonable stress single-piece non-insulating fireproof glass is obtained through post-processing.

Images