Fireproof and heat-insulating glass and preparation process thereof

By using special tempered glass, fireproof and heat-insulating sponge, and hollow interlayer design, the problems of glass being prone to breakage at high temperatures and having poor fire resistance are solved, achieving a highly efficient fireproof and heat-insulating effect and ensuring safety and heat insulation performance during a fire.

CN117780230BActive Publication Date: 2026-03-17上海精硕建设发展有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-30
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing building glass is prone to cracking under high temperature or flame contact, has poor fire resistance, and cannot effectively block heat and flame. The coating material cannot provide sufficient high temperature reflectivity, which leads to an increase in indoor temperature during a fire, affecting personnel evacuation and fire control.

Method used

Using special tempered glass or fire-resistant glass as the base material, combined with high-temperature resistant and low thermal conductivity fireproof and heat-insulating sponge and hollow interlayer design, and using high-temperature resistant sealant and reflective coating, a closed system is formed to enhance the fireproof and heat-insulating performance of the glass.

Benefits of technology

Maintaining the stability of the glass structure at high temperatures effectively blocks the spread of heat and flame, reduces heat loss, provides safe fire protection, and maintains a stable internal building environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of fireproof and heat-insulating glass, and particularly relates to a fireproof and heat-insulating glass and a preparation process thereof, which comprises assembling frames, a glass body, reinforcing plates and fireproof and heat-insulating sponges, wherein the assembling frames are provided in pairs, the glass body is clamped on the inner walls of the assembling frames, the reinforcing plates are arranged between the two assembling frames and are connected through the reinforcing plates, and the fireproof and heat-insulating sponges are installed on the reinforcing plates; special tempered glass or fireproof glass is selected as a base material, the strength of the glass plate can be maintained at high temperature, the glass plate is subjected to mechanical processing and edge grinding treatment, the safety and compatibility of the component are ensured, the developed fireproof and heat-insulating sponge material has excellent heat-insulating property, can protect the structure from high temperature, adopts a hollow sandwich design to block heat and flame propagation, improves the fireproof performance, forms a closed system preventing smoke penetration through edge sealing and surface reflection coating, effectively reduces heat transfer, and realizes efficient heat insulation.
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Description

Technical Field

[0001] This invention belongs to the field of fireproof and heat-insulating glass technology, specifically relating to a fireproof and heat-insulating glass and its preparation process. Background Technology

[0002] In modern architecture, building materials with excellent fire resistance and thermal insulation properties are required to improve the safety of people in emergencies such as fires. Glass, as a widely used building material, receives significant attention for its safety; however, existing architectural glass products still have some problems.

[0003] First, traditional architectural glass shatters rapidly when exposed to high temperatures or direct contact with flames. This can not only lead to the spread of fire but also pose a serious threat to the occupants inside the building. While ordinary tempered glass has good heat resistance, it can still break under extreme temperature changes. Second, the fire resistance of the interlayer in glass is also a problem. Although the interlayer material used in some glass products on the market has a certain degree of heat insulation at normal temperatures, it may not be able to maintain its structural stability in high-temperature environments during a fire. Therefore, it cannot effectively block heat and flames at critical moments. Finally, existing coating technologies for glass surfaces cannot provide sufficient high-temperature reflectivity. This means that in high-temperature environments, the glass cannot effectively reflect heat and is unable to withstand external heat radiation, further exacerbating the rise in indoor temperature and hindering evacuation and fire control during a fire.

[0004] To address the aforementioned issues, this application proposes a fire-resistant and heat-insulating glass and its manufacturing process. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a fire-resistant and heat-insulating glass and its manufacturing process. By adding a water pollution source classification and storage monitoring mechanism, it can solve the problem of traditional building glass rapidly cracking when exposed to high temperatures or direct contact with flames. This not only may lead to the spread of fire but also pose a serious threat to the occupants inside the building. Although ordinary tempered glass has good heat resistance, it may still break under extreme temperature changes. Secondly, the fire resistance of the glass interlayer is also a problem. Some glass products on the market use interlayer materials that, while having a certain degree of heat insulation at normal temperatures, may not be able to maintain their structural stability in high-temperature environments during a fire, thus failing to effectively block heat and flames at critical moments. Finally, regarding the coating technology on the glass surface, existing coating materials cannot provide sufficient high-temperature reflectivity. This means that in high-temperature environments, the glass cannot effectively reflect heat and is unable to withstand external heat radiation, further exacerbating indoor temperature increases and hindering personnel evacuation and fire control during a fire.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fireproof and heat-insulating glass and its manufacturing process, comprising an assembly frame, a glass body, a reinforcing plate, and a fireproof and heat-insulating sponge, wherein a pair of assembly frames are provided, and the glass body is snapped into the inner wall of the assembly frame; the reinforcing plate is provided between the two assembly frames and connected to each other through the reinforcing plate; the fireproof and heat-insulating sponge is installed on the reinforcing plate.

[0007] A preferred embodiment of the fireproof and heat-insulating glass and its manufacturing process according to the present invention includes the following steps:

[0008] S1: Glass material selection: Select high-temperature resistant and impact-resistant special tempered glass or fire-resistant glass as the base material;

[0009] S2: Glass plate pretreatment: The glass plate is mechanically processed, cut to the required size, and the edges are ground smooth;

[0010] S3: Prepare fireproof and heat-insulating sponge materials with high temperature resistance and low thermal conductivity, such as inorganic foam reinforced with aluminum silicate fiber;

[0011] S4: Constructing a hollow interlayer: Cut the fireproof and heat-insulating sponge to the required shape and thickness and place it between two glass plates to create a hollow interlayer;

[0012] S5: Edge sealing process: High-temperature resistant sealant is used to bond and seal the two glass plates and fireproof and heat-insulating sponge to form a complete closed system;

[0013] S6: Surface coating: A high-temperature resistant reflective coating is applied to the glass surface to enhance its ability to reflect heat energy;

[0014] S7: Performance Testing and Acceptance: Conduct heat transfer and fire resistance tests on the finished product.

[0015] As a preferred embodiment of the fireproof and heat-insulating glass and its manufacturing process according to the present invention, step S3 includes the following steps:

[0016] (1) Select suitable refractory fiber materials, such as aluminosilicate fiber or ceramic fiber, which have high melting point and good heat insulation properties.

[0017] (2) Mix the refractory fiber with the binder, which is usually a high-temperature adhesive used to maintain the structural integrity of the sponge.

[0018] (3) Adding chemical foaming agents to introduce gas into the mixture creates a porous sponge structure, which helps to reduce thermal conductivity.

[0019] (4) The mixed material is shaped, usually by pouring it into a pre-designed mold to obtain the desired shape and size.

[0020] (5) Curing treatment is carried out, usually at high temperature, to ensure that the sponge material hardens through chemical reaction.

[0021] (6) Drying and sintering are further processed to strengthen the structure and enable the material to maintain good performance in high-temperature environments.

[0022] (7) Cut and arrange the molded sponge as necessary to meet the specifications of the final product.

[0023] (8) Conduct performance tests to verify the material’s high temperature resistance, low thermal conductivity and other related fire resistance properties.

[0024] As a preferred embodiment of the fireproof and heat-insulating glass and its manufacturing process according to the present invention, step S4 includes the following steps:

[0025] (1) A reinforced structure, such as a metal bracket or a synthetic material frame, can be designed inside the fireproof and heat-insulating sponge in combination with the hollow interlayer to provide additional support and stability.

[0026] (2) In addition to using high-temperature fire-resistant sealant, mechanical anchoring such as clamps and strips can be used to enhance the stability and durability of the edges. Before the curing process of the sponge material and sealant, a specific gas, such as argon or krypton, can be injected into the hollow interlayer to further improve the heat insulation and sound insulation performance.

[0027] (3) Applying a low-emissivity coating to the surface can significantly improve the thermal efficiency of the hollow sandwich and reduce energy loss.

[0028] As a preferred embodiment of the fireproof and heat-insulating glass and its manufacturing process of the present invention, in step S5, an air leakage test is performed to verify the sealing performance of the system, and a drying process is performed to ensure that no condensation will occur inside when used in an environment with strict humidity control.

[0029] Compared with existing technologies, the beneficial effects of this invention are as follows: Using special tempered glass or fire-resistant glass as the substrate ensures strength at high temperatures, preventing breakage; mechanical processing and edge grinding of the glass panels guarantee the safety and compatibility of the components; the developed fire-resistant and heat-insulating sponge material possesses excellent heat insulation properties, protecting the structure from high temperatures; the hollow sandwich design blocks heat and flame propagation, enhancing fire resistance; and edge sealing and surface reflective coating form a closed system that prevents smoke penetration, effectively reducing heat transfer and achieving highly efficient heat insulation. In summary, this design creates a high-temperature resistant, highly efficient heat-insulating glass system that provides effective protection in fire situations, reduces heat loss, and maintains the stability of the building's internal environment. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the overall method flow of the present invention.

[0033] In the diagram: 1. Assembly frame; 2. Glass body; 3. Reinforcing plate; 4. Fireproof and heat-insulating sponge. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figure 1 As shown;

[0036] A fireproof and heat-insulating glass, characterized in that it includes an assembly frame 1, a glass body 2, a reinforcing plate 3, and a fireproof and heat-insulating sponge 4, wherein the assembly frame 1 is provided in pairs, and the glass body 2 is snapped into the inner wall of the assembly frame 1; a reinforcing plate 3 is provided between the two assembly frames 1 and they are connected by the reinforcing plate 3; the fireproof and heat-insulating sponge 4 is installed on the reinforcing plate 3.

[0037] In this implementation plan: First, the assembly frame 1 serves as a support and positioning element. It is typically made of high-temperature resistant and structurally stable materials, capable of withstanding high temperatures and flames while maintaining its shape and strength. There are two assembly frames 1, fixed to both sides of the glass to be installed, acting as frame supports. The glass body 2 is the main part of the fire-resistant and heat-insulating glass. It can be various types of fire-resistant glass, such as tempered glass, laminated glass, or glass with special fire-resistant coatings, which can prevent the spread of flames and high temperatures in the event of a fire. Simultaneously, it is snapped into the inner wall of the assembly frame 1 to ensure its stability and sealing within the frame. The reinforcing plate 3 is installed to enhance the load-bearing capacity and compressive strength of the entire window structure. The two assembly frames 1 are connected by the reinforcing plate 3, meaning that several fire-resistant and heat-insulating glass units... The reinforcing plates 3 can be tightly combined to form a larger area of ​​fireproof and heat-insulating window or partition. The fireproof and heat-insulating sponge 4 installed on the reinforcing plates 3 is a key component. It is usually made of materials with high fire resistance, such as ceramic fiber or other high-temperature resistant heat-insulating materials. When a fire occurs, the high temperature causes the fireproof and heat-insulating sponge 4 to expand and release substances that can insulate heat and flames, thereby further improving the overall heat insulation and fire resistance performance of the fireproof glass. In summary, the working principle of the fireproof and heat-insulating glass of this invention is to form a safety barrier that effectively blocks the spread of flames and heat through structural combination and reinforcement, as well as the fireproof and heat-insulating properties of the materials themselves. This not only ensures the safety of people inside the building, but also maintains the temperature stability of the internal environment, effectively reducing the damage of fire to the building.

[0038] like Figure 2 As shown;

[0039] A fire-resistant and heat-insulating glass and its manufacturing process, comprising the following steps:

[0040] S1: Glass material selection: Select high-temperature resistant and impact-resistant special tempered glass or fire-resistant glass as the base material;

[0041] S2: Glass plate pretreatment: The glass plate is mechanically processed, cut to the required size, and the edges are ground smooth;

[0042] S3: Prepare fireproof and heat-insulating sponge materials with high temperature resistance and low thermal conductivity, such as inorganic foam reinforced with aluminum silicate fiber;

[0043] S4: Constructing a hollow interlayer: Cut the fireproof and heat-insulating sponge to the required shape and thickness and place it between two glass plates to create a hollow interlayer;

[0044] S5: Edge sealing process: High-temperature resistant sealant is used to bond and seal the two glass plates and fireproof and heat-insulating sponge to form a complete closed system;

[0045] S6: Surface coating: A high-temperature resistant reflective coating is applied to the glass surface to enhance its ability to reflect heat energy;

[0046] S7: Performance Testing and Acceptance: Conduct heat transfer and fire resistance tests on the finished product.

[0047] In this implementation plan, the preparation of double-layer fireproof and heat-insulating glass with a fireproof and heat-insulating sponge layer can follow the following process: Select high-temperature resistant and impact-resistant special tempered glass or fire-resistant glass as the substrate. The rationale is that these types of glass are not easily broken at high temperatures, can withstand sudden temperature changes during a fire, and provide long-term fire protection. Machining is performed on the glass sheets, cutting them to the required size, and grinding the edges. The rationale is to ensure that the edges of the glass sheets are smooth and free of cracks to avoid becoming the starting point of breakage, and to facilitate subsequent assembly and sealing. High-temperature resistant and low thermal conductivity fireproof and heat-insulating sponge material is prepared, such as inorganic foam reinforced with aluminum silicate fiber. The rationale is that this material can maintain structural stability at high temperatures and provide excellent heat insulation, while the fiber material can prevent rapid heat penetration. The fireproof and heat-insulating sponge is cut to the required shape and thickness and placed between two glass sheets to create a hollow spacer. The rationale is that the hollow spacer not only provides heat insulation protection, but also... The foam structure also impedes heat and flame propagation, improving the overall fire resistance. High-temperature resistant sealant is used to bond and seal the two glass panes and the fire-resistant, heat-insulating foam, forming a complete closed system. The rationale is that a good seal prevents smoke and harmful gases from entering the interlayer, while keeping the interlayer dry and preventing the foam from absorbing moisture and affecting its insulation. A high-temperature resistant reflective coating is applied to the glass surface to enhance its heat reflection capability. The rationale is that the reflective coating reduces heat directly hitting the glass, thereby reducing heat transfer to the interior and improving insulation performance. Heat transfer and fire resistance tests are conducted on the finished product to ensure compliance with national fire safety standards. The rationale is that performance testing verifies that the glass's insulation, fire resistance, and strength meet design expectations, ensuring user safety. Through the above steps, a high-temperature resistant, fire-resistant, heat-insulating foam is innovatively introduced as the intermediate interlayer, which not only improves fire resistance but also enhances insulation, offering superior overall performance compared to traditional double-glazed windows.

[0048] In one embodiment of this application, such as Figures 1-2 As shown, S3 includes the following steps:

[0049] (1) Select suitable refractory fiber materials, such as aluminosilicate fiber or ceramic fiber, which have high melting point and good heat insulation properties.

[0050] (2) Mix the refractory fiber with the binder, which is usually a high-temperature adhesive used to maintain the structural integrity of the sponge.

[0051] (3) Adding chemical foaming agents to introduce gas into the mixture creates a porous sponge structure, which helps to reduce thermal conductivity.

[0052] (4) The mixed material is shaped, usually by pouring it into a pre-designed mold to obtain the desired shape and size.

[0053] (5) Curing treatment is carried out, usually at high temperature, to ensure that the sponge material hardens through chemical reaction.

[0054] (6) Drying and sintering are further processed to strengthen the structure and enable the material to maintain good performance in high-temperature environments.

[0055] (7) Cut and arrange the molded sponge as necessary to meet the specifications of the final product.

[0056] (8) Conduct performance tests to verify the material’s high temperature resistance, low thermal conductivity and other related fire resistance properties.

[0057] In this implementation plan: The preparation of high-performance thermal insulation sponge material begins with the selection of high-quality refractory fiber materials. These materials, such as aluminosilicate fibers and ceramic fibers, are characterized by their high melting point and low thermal conductivity, ensuring that the prepared sponge maintains structural stability under extreme high-temperature environments and effectively isolates heat transfer. The selected refractory fibers are mixed with a specialized high-temperature resistant adhesive, and a chemical foaming agent is added. This type of foaming agent generates bubbles within the material, resulting in a porous structure in the sponge, thereby further reducing thermal conductivity and increasing fire resistance. This process is carried out in a fixed mold to ensure the material has accurate dimensions and shape. Next, the mixture is cured at a specific high temperature. This step not only hardens the sponge but also further enhances the material's stability through a chemical reaction. Subsequently, drying and sintering are performed at high temperatures to enhance the structural integrity of the material, allowing it to adapt to even higher temperature conditions. Cutting and finishing are then carried out to ensure that the sponge material meets the specifications of the final product. Performance tests are then conducted on the material, including high-temperature resistance, thermal conductivity, and fire resistance properties. These performance indicators are crucial for evaluating whether materials meet usage standards. Finally, a rigorous quality control process must be implemented during production to ensure that all fire-resistant and heat-insulating sponge materials consistently meet or exceed expected performance standards. Fire safety: High-temperature resistant, low-thermal-conductivity sponge materials can provide an effective protective barrier in the event of a fire, limiting the spread of flames. Through these steps and effects, the resulting high-temperature resistant, low-thermal-conductivity fire-resistant and heat-insulating sponge materials can effectively improve the fire-resistant and heat-insulating properties of glass.

[0058] In one embodiment of this application, such as Figures 1-2 As shown, S4 includes the following steps:

[0059] (1) A reinforced structure, such as a metal bracket or a synthetic material frame, can be designed inside the fireproof and heat-insulating sponge in combination with the hollow interlayer to provide additional support and stability.

[0060] (2) In addition to using high-temperature fire-resistant sealant, mechanical anchoring such as clamps and strips can be used to enhance the stability and durability of the edges. Before the curing process of the sponge material and sealant, a specific gas, such as argon or krypton, can be injected into the hollow interlayer to further improve the heat insulation and sound insulation performance.

[0061] (3) Applying a low-emissivity coating to the surface can significantly improve the thermal efficiency of the hollow sandwich and reduce energy loss.

[0062] In this implementation plan, a reinforced structure is designed inside the fire-resistant and heat-insulating sponge. This provides additional support and stability. This structure typically employs a metal bracket or a synthetic material frame. The metal bracket possesses high strength and toughness, enhancing the structural integrity of the fire-resistant and heat-insulating sponge, enabling it to withstand higher loads and external influences. Simultaneously, this reinforcement helps maintain the integrity of the insulation material in extreme conditions such as fires, thus providing durable fire resistance and heat insulation. To enhance edge stability and durability, in addition to using high-temperature fire-resistant sealants, mechanical anchoring methods such as clamps and strips can be used for fixation. These mechanical anchoring facilities prevent edge materials from detaching or deforming under long-term mechanical or thermal stress. Furthermore, injecting specific gases (such as argon or krypton) into the hollow interlayer further enhances the heat insulation and sound insulation properties of the fire-resistant and heat-insulating sponge. These inert gases have a lower thermal conductivity than air, acting as an extra layer of insulation within the hollow core. This not only slows heat conduction through the material but also effectively reduces sound wave transmission. To further improve the thermal efficiency of the hollow core and reduce energy loss, coating the surface with a low-emissivity coating is a highly effective method. This coating reflects thermal radiation, reducing the heat absorption capacity of the sponge material. As a result, indoor heat is retained in winter and reflects solar heat in summer, thus maintaining a stable indoor temperature and reducing the need for heating and air conditioning, resulting in significant energy savings.

[0063] Understandably, in the S5, a leak test is performed to verify the system's sealing performance, and a drying process is carried out to ensure that no condensation will form inside when used in environments with strict humidity control.

[0064] In summary, selecting special tempered glass or fire-resistant glass as the base material ensures strength at high temperatures, preventing breakage. Mechanical processing and edge grinding of the glass panels guarantee the safety and compatibility of the components. The developed fire-resistant and heat-insulating sponge material possesses excellent heat insulation properties, protecting the structure from high temperatures. The hollow sandwich design blocks heat and flame propagation, enhancing fire resistance. Edge sealing and a surface reflective coating form a closed system that prevents smoke penetration, effectively reducing heat transfer and achieving highly efficient heat insulation. In conclusion, this design creates a high-temperature resistant, highly efficient heat-insulating glass system that provides effective protection in fire situations, reduces heat loss, and maintains a stable internal building environment.

[0065] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A process for the production of fire-resistant, heat- insulating glass, characterized in that: The fireproof and heat insulation glass comprises an assembling frame (1), a glass body (2), a reinforcing plate (3) and a fireproof and heat insulation sponge (4), wherein the assembling frame (1) is provided with a pair, the glass body (2) is clamped on the inner wall of the assembling frame (1); the reinforcing plate (3) is arranged between the two assembling frames (1) and connected through the reinforcing plate (3); the fireproof and heat insulation sponge (4) is installed on the reinforcing plate (3); The preparation process of the fireproof and heat insulation glass comprises the following steps: S1: glass material selection: selecting special tempered glass or fireproof glass with high temperature resistance and impact resistance as the base material; S2: glass plate pretreatment: mechanical processing is performed on the glass plate, which is cut to the required size and the edges are ground flat; S3: preparing a fireproof and heat insulation sponge material with high temperature resistance and low thermal conductivity, the fireproof and heat insulation sponge material is an inorganic foam reinforced by aluminum silicate fiber; specifically comprising the following steps: (1) selecting suitable refractory fiber material, the refractory fiber material is aluminum silicate fiber or ceramic fiber, these materials have high melting point and good heat insulation characteristics; (2) mixing the refractory fiber with a binder, which is a high-temperature adhesive used to maintain the structural integrity of the sponge; (3) adding a chemical foaming agent, which forms a porous sponge structure by introducing gas into the mixture, which helps to reduce the thermal conductivity; (4) shaping the mixed material, pouring it into a pre-designed mold to obtain the required shape and size; (5) curing treatment is carried out at high temperature to ensure that the sponge material is hardened through chemical reaction; (6) drying and sintering for further processing to strengthen the structure and enable the material to maintain good performance in high temperature environment; (7) cutting and arranging the shaped sponge as needed to meet the specification requirements of the final product; (8) performance testing to verify the high temperature resistance, low thermal conductivity and other related fireproof performance of the material; S4: constructing a hollow interlayer: cutting the fireproof and heat insulation sponge according to the required shape and thickness and placing it between the two glass plates to create a hollow interlayer; specifically comprising the following steps: (1) designing a reinforcing structure combined with the hollow interlayer inside the fireproof and heat insulation sponge, the reinforcing structure is a metal bracket or a synthetic material frame to provide additional support and stability; (2) in addition to using high-temperature fire-resistant sealant, mechanical anchoring is also used to enhance the stability and durability of the edges, the mechanical anchoring is a clamp or a clamping strip, argon or krypton gas is injected into the hollow interlayer before the sponge material and the sealant are cured to further improve the heat and sound insulation performance; (3) applying a low-emissivity coating on the surface to significantly improve the thermal efficiency of the hollow interlayer and reduce energy loss; S5: edge sealing process: using high-temperature resistant sealant to bond and seal the two glass plates and the fireproof and heat insulation sponge to form a complete closed system; S6: surface coating: applying a high-temperature resistant reflective coating on the glass surface to enhance the ability to reflect heat energy; S7: performance testing and acceptance: testing the finished product for heat transfer and fireproofing level.

2. The process for preparing fireproof and heat-insulating glass according to claim 1, characterized in that: In S5, a leak test is performed to verify the sealing performance of the system, and a drying process is performed to ensure that no condensation water is generated inside when used in an environment with strict humidity control.

Citation Information

Patent Citations

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    CN210977207U

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