CN114853367A - All-tempered vacuum glass and edge sealing method - Google Patents
All-tempered vacuum glass and edge sealing method Download PDFInfo
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- CN114853367A CN114853367A CN202110164144.0A CN202110164144A CN114853367A CN 114853367 A CN114853367 A CN 114853367A CN 202110164144 A CN202110164144 A CN 202110164144A CN 114853367 A CN114853367 A CN 114853367A
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- glass sheet
- lower glass
- edge sealing
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- glass plate
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/249—Glazing, e.g. vacuum glazing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/22—Glazing, e.g. vaccum glazing
Abstract
The invention relates to a full-tempered vacuum glass and an edge sealing method, and provides a dual-function complementary edge sealing theory and a manufacturing process, wherein the dual-function complementary edge sealing theory comprises the following steps: the high-barrier sealing function and the high-bonding reliability function are organically combined, and the functions and advantages of the high-barrier sealing function and the high-bonding reliability function are mutually complemented to form a complementary edge sealing process; the high-barrier material is used for blocking gas permeation and releasing gas as little as possible so as to ensure that the vacuum degree is kept for a long time; the high-bonding material is responsible for reliable bonding of the two pieces of toughened glass, so that the bonding firmness, weather resistance and long-term reliability of the vacuum glass are ensured; the invention can realize the purposes of long-term vacuum degree and reliability maintenance of the vacuum glass, suitability for mass production and relatively low cost, and is beneficial to promoting the rapid development of the vacuum glass industry.
Description
Technical Field
The invention relates to the technical field of edge sealing of vacuum glass, in particular to all-tempered vacuum glass and an edge sealing method.
Background
The fully tempered vacuum glass has the excellent characteristics of heat insulation, sound insulation, wind pressure resistance, dewing resistance, good safety and the like, is an updated product of hollow glass, represents the development direction of glass technology and industry, and greatly influences the energy-saving and environment-friendly effects in the fields of buildings, vehicles, ships, household appliances and the like.
The main reason why fully tempered vacuum glass has not been manufactured at a large scale and low cost to date is that the edge sealing problem has not been solved. The fundamental reasons are: annealing phenomenon can occur when the glass is heated again after being tempered, and the tempered glass is annealed, the product performance is reduced and the cost is greatly increased by adopting a high-temperature glass powder (ink) brazing edge sealing method adopted in the early white glass vacuum glass era; therefore, the edge sealing problem of the fully tempered vacuum glass becomes a worldwide problem.
The main attack and defense directions of the current vacuum glass industry are as follows: the edge sealing of the fully tempered vacuum glass is realized by adopting methods of low-temperature glass powder (ink) brazing, silver-tin (or other) metal brazing, organic material bonding and the like; however, the above edge sealing methods all have fatal defects:
(1) and low-temperature glass powder (ink) brazing edge sealing: the lower the brazing temperature is, the worse the welding reliability is; meanwhile, the qualification rate of the whole process of the vacuum glass is reduced due to annealing after tempering.
(2) And metal brazing edge sealing: most screen printing (or brushing or 3D printing and the like) silver layers or other metal and alloy coatings are adopted, then a transition layer is formed through a toughening furnace (or other high-temperature furnaces) and then is welded with tin or other metal welding materials to form a metal edge sealing; welding reliability (weather resistance, sealing durability and the like) is questionable, the heat transfer coefficient is poor due to metal edge sealing, the process is complex, the equipment investment is large, the product cost is high, the qualification rate in the whole process is low, and the large-scale production capacity is not easy to form.
(3) And the organic materials (hot melt adhesive, butyl adhesive, silicone structural adhesive and the like) are glued and bonded by a machine automatically or manually: the barrier property is poor, the self-deflation is serious, and the vacuum degree cannot last.
To date, no edge sealing material, edge sealing method and edge sealing process which have high barrier property, low outgassing property, long-term reliability and low product cost and are suitable for mass production have been found in the industry, so that the vacuum glass industry develops slowly.
Disclosure of Invention
The invention aims to provide full-tempered vacuum glass and an edge sealing method, so that the glass has better blocking effect and the vacuum degree is kept for a longer time.
In order to achieve the purpose, the invention adopts the following technical scheme:
an edge sealing method for fully tempered vacuum glass comprises the following steps:
(1) fixedly placing the lower glass sheet on which the supports are distributed on a support plane;
(2) welding or placing a blocking substance on the lower glass sheet at a position close to the edge of the lower glass sheet to form a blocking layer for blocking gas from permeating;
(3) the upper glass sheet and the lower glass sheet are laminated, and the blocking layer is fixedly connected with the lower glass sheet and the upper glass sheet respectively; (4) bonding a bonding layer between the upper glass sheet and the lower glass sheet at one side of the barrier layer;
(5) and vacuumizing the cavity between the upper glass sheet and the lower glass sheet.
Further, a barrier layer is formed by adopting a welding method, and the method comprises the following steps: (1) forming a metal coating on the opposite surfaces of the upper glass sheet and the lower glass sheet by adopting a printing missing or spraying method at the position close to the edge; (2) the metal coating is sintered at high temperature to form a transition layer; (3) and after the lower glass sheet and the upper glass sheet are combined, welding metal wires are beaten or coated with welding tin paste by a machine between the two transition layers, and then the metal is welded by fusion welding to form a barrier layer.
Further, the soldering metal is tin or tin alloy or lead alloy or zinc alloy.
Further, the solder bonding sheets are formed into a barrier layer by induction or baking heating or infrared heating or electric heating.
Further, a flexible metal is placed on the lower glass sheet at a position close to the edge of the lower glass sheet, and the flexible metal material is pressed and connected by vacuum negative pressure or external pressure, so that the flexible metal material wire or sheet or foil is respectively tightly attached to the upper glass sheet and the lower glass sheet, and a barrier layer is formed.
Further, the flexible metal material adopts indium or indium alloy or gallium alloy or tin alloy or lead alloy.
Further, the adhesive layer is formed by hot melt adhesive or silicone adhesive or butyl adhesive or structural adhesive: and gluing or gluing automatically or manually by a machine to form a bonding layer on the inner side or the outer side of the barrier layer.
Further, the distance between the upper glass sheet and the lower glass sheet is 0.2mm to 1 mm.
Further, structural adhesive is coated on the edges of the upper glass sheet and the lower glass sheet, and the structural adhesive forms a protective layer.
The all-tempered vacuum glass comprises an upper glass plate, a lower glass plate, a barrier layer and a bonding layer; the lower glass plate is fixedly connected with a support column, the support column is used for supporting the upper glass plate, the blocking layer is positioned between the lower glass plate and the upper glass plate and close to the edge of the lower glass plate, and the bonding layer is respectively bonded with the upper glass plate, the lower glass plate and the blocking layer; the protective layer is positioned on the edges of the upper glass plate and the lower glass plate.
Furthermore, the support columns are made of metal materials and placed between the upper glass plate and the lower glass plate, or the support columns are formed by sintering glass powder.
The invention has the beneficial effects that:
the theory and the manufacturing process of the double-function complementary edge sealing are provided: the high-barrier sealing function and the high-bonding reliability function are organically combined, and the functions and advantages of the high-barrier sealing function and the high-bonding reliability function are mutually complemented to form a complementary edge sealing process; the high-barrier material is used for blocking gas permeation and releasing gas as little as possible so as to ensure that the vacuum degree is kept for a long time; the high-bonding material is responsible for reliable bonding of the two pieces of toughened glass, so that the bonding firmness, weather resistance and long-term reliability of the vacuum glass are ensured; the invention can realize the long-term maintenance of the vacuum degree and the reliability of the vacuum glass, is suitable for mass production, has relatively low cost and is beneficial to promoting the rapid development of the vacuum glass industry.
Drawings
FIG. 1 is a schematic front view of a vacuum sealing glass according to the present invention;
fig. 2 is a schematic side view of a vacuum sealing glass according to the present invention.
Names corresponding to the marks in the figure:
1-putting a glass sheet;
2-lower glass sheet;
3-a barrier layer;
4-bonding layer.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1 of the invention:
the all-tempered vacuum glass comprises an upper glass plate 1, a lower glass plate 2, a barrier layer 3, a bonding layer 4 and a protective layer; lower glass plate 2 is gone up to lay or the sintering forms the support column, the support column is used for supporting glass plate 1, barrier layer 3 is located be close to between lower glass plate 2 and the last glass plate 1 2 border position of lower glass plate, bonding layer 4 bonds respectively and goes up glass plate 1, lower glass plate 2 and barrier layer 3, the protective layer is located glass plate 2 and lower glass plate 1 edge. . The support columns are used for supporting the upper glass plate 1 and the lower glass plate 2, and the distance between the upper glass plate 1 and the lower glass plate 2 is 0.3 mm.
The upper glass plate 1 and the lower glass plate 2 are close to the edge position, and metal coatings are formed on the opposite surfaces of the upper glass plate 1 and the lower glass plate 2 through sintering. The barrier layer 3 is tin alloy, and the two metal coatings are respectively welded with the barrier layer 3.
The adhesive layer 4 is fixedly connected with the outer side of the barrier layer 3. The adhesive layer 4 adopts hot melt adhesive; the blocking layer 3 surrounds the edge of the lower glass plate 2 for a circle, and an air suction hole is formed in the blocking layer 3 and used for vacuumizing the interior of the glass; when the interior of the glass is in a vacuum state, the air exhaust hole is sealed by adopting a hot melt adhesive or silicone adhesive or butyl adhesive or metal welding mode.
The use method of the invention comprises the following steps:
vacuum glass with different sizes is selected according to the shapes of doors, windows and curtain walls, the corresponding vacuum glass is selected, then the related glass frame is installed, and finally the glass frame is installed at the position needing to be installed.
Example 1 of the edge sealing method for all tempered glass according to the present invention:
the edge sealing method of the fully tempered glass comprises the following steps:
1. fixedly placing the lower glass sheet on which the supports are distributed on a support plane;
2. forming a metal coating on the opposite surfaces of the upper glass sheet and the lower glass sheet by adopting a printing missing method at a position close to the edge;
3. the metal coating is sintered at high temperature to form a transition layer;
4. when the upper glass sheet and the lower glass sheet are laminated, a blocking layer is formed between the two transition layers in an induction heating soldering tin mode, and the blocking layer is used for blocking gas permeation;
5. a bonding layer is bonded between the upper glass sheet and the lower glass sheet and outside the barrier layer, and the bonding layer is formed by hot melt adhesive; the hot melt adhesive is automatically coated by a machine; and coating structural adhesive on the outer side of the bonding layer to form a protective layer.
6. And vacuumizing the cavity between the upper glass sheet and the lower glass sheet.
The aforesaid is that adopt the welded mode to form the barrier layer, and the barrier layer sealing effect who forms through the welded mode is better, can not produce the air, also can prevent that outside air from getting into, and the outside has bonding tie coat and protective layer to make water-proof effects better.
In other embodiments, the adhesive layer may also be formed from silicone or butyl or structural glue: the manual gluing or gluing mode can also be adopted, and the bonding layer can also be arranged on the inner side of the barrier layer.
The material forming the barrier layer may also be selected from tin or lead or a lead alloy or zinc or a zinc alloy.
The metal coating can be formed by spraying.
The welding mode can also select baking heating or infrared heating or electric heating.
Example 2 of the edge sealing method for all tempered glass according to the present invention:
1. the edge sealing method of the fully tempered glass comprises the following steps: fixedly placing the lower glass sheet on which the supports are distributed on a support plane;
2. placing the indium wire on the lower glass plate at a position close to the edge of the lower glass sheet;
3. placing an upper glass sheet above a lower glass sheet, and applying downward pressure above the upper glass sheet to compress the indium wires to form a barrier layer;
4. a bonding layer is bonded between the upper glass sheet and the lower glass sheet and outside the barrier layer;
5. a protective layer is bonded on the outer side of the barrier layer;
6. and vacuumizing the cavity between the upper glass sheet and the lower glass sheet.
The metal for crimping can also be indium or indium alloy or gallium alloy or tin alloy or lead alloy; the compressible metal may also be in the form of a sheet or foil or a mixture of wires, sheets, and foils.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. An edge sealing method for all-tempered vacuum glass is characterized by comprising the following steps:
(1) fixedly placing the lower glass sheet on which the supports are distributed on a support plane;
(2) welding or placing a blocking substance on the lower glass sheet at a position close to the edge of the lower glass sheet to form a blocking layer for blocking gas from permeating;
(3) the upper glass sheet and the lower glass sheet are laminated, and the blocking layer is fixedly connected with the lower glass sheet and the upper glass sheet respectively;
(4) between the upper glass sheet and the lower glass sheet, one side of the barrier layer is coated with glue to form a bonding layer;
(5) and vacuumizing the cavity between the upper glass sheet and the lower glass sheet.
2. The edge sealing method for all-tempered vacuum glass according to claim 1, wherein the step of forming the barrier layer by welding comprises the steps of:
(1) forming a metal coating on the opposite surfaces of the upper glass sheet and the lower glass sheet by adopting a printing missing or spraying method at the position close to the edge;
(2) the metal coating is sintered at high temperature to form a transition layer;
(3) and after the lower glass sheet and the upper glass sheet are combined, welding metal wires are beaten or coated with welding tin paste by a machine between the two transition layers, and then the metal is welded by fusion welding to form a barrier layer.
3. The edge sealing method for all-tempered vacuum glass according to claim 2, wherein the welding metal is tin or tin alloy or lead alloy or zinc alloy.
4. The method of claim 2, wherein the step of forming the barrier layer comprises applying induction or baking heat or infrared or electrical heat to the welded joint.
5. The method of claim 1, wherein a flexible metal is placed on the lower glass sheet near the edge of the lower glass sheet, and vacuum or external pressure is applied to crimp the flexible metal material such that the flexible metal material wire or sheet or foil is pressed against the upper glass sheet and the lower glass sheet, respectively, and forms a barrier layer.
6. The edge sealing method for all-tempered vacuum glass according to claim 4, wherein the flexible metal material is indium or indium alloy or gallium alloy or tin alloy or lead alloy.
7. The edge sealing method for all-tempered vacuum glass according to claim 1, wherein the bonding layer is formed by hot melt adhesive or silicone adhesive or butyl adhesive or structural adhesive: and gluing or gluing automatically or manually by a machine to form a bonding layer on the inner side or the outer side of the barrier layer.
8. The edge sealing method for all-tempered vacuum glass according to any one of claims 1 to 7, wherein the distance between the upper glass sheet and the lower glass sheet is 0.2mm to 1 mm.
9. An edge sealing method for all-tempered vacuum glass according to any one of claims 1 to 7, wherein structural glue is applied to the edges of the upper glass sheet and the lower glass sheet, and forms a protective layer.
10. The all-tempered vacuum glass is characterized by comprising an upper glass plate, a lower glass plate, a barrier layer, a bonding layer and a protective layer; the lower glass plate is fixedly connected with a support column, the support column is used for supporting the upper glass plate, the blocking layer is positioned between the lower glass plate and the upper glass plate and close to the edge of the lower glass plate, and the bonding layer is respectively bonded with the upper glass plate, the lower glass plate and the blocking layer; the protective layer is positioned on the edges of the upper glass plate and the lower glass plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110164144.0A CN114853367A (en) | 2021-02-05 | 2021-02-05 | All-tempered vacuum glass and edge sealing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110164144.0A CN114853367A (en) | 2021-02-05 | 2021-02-05 | All-tempered vacuum glass and edge sealing method |
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| Publication Number | Publication Date |
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| CN114853367A true CN114853367A (en) | 2022-08-05 |
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| CN202110164144.0A Pending CN114853367A (en) | 2021-02-05 | 2021-02-05 | All-tempered vacuum glass and edge sealing method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079619A (en) * | 2009-11-27 | 2011-06-01 | 洛阳兰迪玻璃机器有限公司 | Glass plate combination sealing method |
| CN102249559A (en) * | 2010-12-10 | 2011-11-23 | 洛阳兰迪玻璃机器有限公司 | Vacuum glass component |
| CN104003628A (en) * | 2013-02-26 | 2014-08-27 | 中国建材检验认证集团股份有限公司 | Vacuum glass with metal edge-sealing structure and making method thereof |
| US20180066470A1 (en) * | 2014-11-19 | 2018-03-08 | Changhong Dai | Vacuum glass and manufacturing method therefor |
-
2021
- 2021-02-05 CN CN202110164144.0A patent/CN114853367A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079619A (en) * | 2009-11-27 | 2011-06-01 | 洛阳兰迪玻璃机器有限公司 | Glass plate combination sealing method |
| CN102249559A (en) * | 2010-12-10 | 2011-11-23 | 洛阳兰迪玻璃机器有限公司 | Vacuum glass component |
| CN104003628A (en) * | 2013-02-26 | 2014-08-27 | 中国建材检验认证集团股份有限公司 | Vacuum glass with metal edge-sealing structure and making method thereof |
| US20180066470A1 (en) * | 2014-11-19 | 2018-03-08 | Changhong Dai | Vacuum glass and manufacturing method therefor |
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