CN104291625A - Vacuum glass air-exhaust port sealing structure and preparation method thereof - Google Patents
Vacuum glass air-exhaust port sealing structure and preparation method thereof Download PDFInfo
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- CN104291625A CN104291625A CN201310298666.5A CN201310298666A CN104291625A CN 104291625 A CN104291625 A CN 104291625A CN 201310298666 A CN201310298666 A CN 201310298666A CN 104291625 A CN104291625 A CN 104291625A
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- glass
- bleeding point
- metal
- vacuum
- wear ring
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention relates to a vacuum glass air-exhaust port sealing structure. The structure is characterized in that the upper glass of the vacuum glass is perforated, such that an air-exhaust port is prepared; a sealing ring is prepared on the lower surface of the upper glass and at the periphery of the air-exhaust port; a recess or a recessed groove is prepared on the upper surface of the lower glass at the place corresponding to the air-exhaust port, wherein the sealing ring can be inserted into the recess or recessed groove; after edge-sealing of the upper and lower glass, a metal solder is placed into the air-exhaust port; the air-exhaust port is vacuumed and heated, such that the metal solder is molten into liquid, and the liquid is retained in the recess or recessed groove; the sealing ring is also immersed in the liquid; with a liquid sealing principle, the air-exhaust port is automatically sealed; the temperature is reduced and the liquid is solidified, such that air-tight sealing upon the air-exhaust port is realized. With the method provided by the invention, mass productions can be realized. Vacuum glass production efficiency and qualification rate can be greatly improved, and production cost can be reduced.
Description
Technical field
The invention belongs to vacuum glass field, particularly relate to sealed structure of a kind of vacuum glass pumping hole and preparation method thereof.
Background technology
Existing vacuum glass is generally made up of two pieces or three blocks of sheet glass, glass surrounding low temperature glass solder edge sealing, and there is small upholder centre, makes the thin vacuum layer forming 0.1 ~ 0.2mm thickness between two blocks of glass by bleeding.Owing to not having the heat transfer of gas, transaudient, the internal surface of glass can have again transparent low heat-emissive film, so vacuum glass has well heat insulation and soundproof effect, is one of best energy-saving glass of performance.
The gordian technique of existing vacuum glass has: one is edge sealing, and two is laying of upholder, and three is acquisition and maintenances of vacuum.The mode that existing vacuum glass obtains vacuum mainly contains the following two kinds: (1) is that first on a sheet glass, bleeding point is prepared in punching, then while adding hot edge seal with low temperature glass solder, on bleeding point, Glass tubing of bleeding is welded, finally heating vacuumizes the Glass tubing and sealing by fusing is bled, owing to bleeding, Glass tubing protrudes from glass surface, so also need to protect bleeding point position; (2) be do not need prefabricated bleeding point above glass, but glass edge being scribbled low temperature glass solder is placed in vacuum furnace after closing sheet, adds hot edge seal under vacuo and directly forms vacuum layer.The shortcoming of first kind of way is that evacuation process is complicated, production efficiency is very low: because pump-line is very thin, vacuum layer is very thin, pumping resistance is large, speed is little, and needs monolithic to extract, so production efficiency is very low; The second way can solve the shortcoming that first kind of way exists, but because low temperature glass solder is made up of many oxide, under a vacuum at high temperature, in the gas that volatile substances in the air of solder wettable and moisture, solder, solder dissolve in process of production and solder, the decomposition etc. of partial oxide all can cause in solder and produce a large amount of bubbles, greatly weaken the properties especially resistance to air loss of solder, cause the feasibility of this kind of mode to be greatly affected.Also have a kind of mode to be between above two kinds of modes, i.e. prefabricated bleeding point on glass, then after high temperature edge sealing, vacuumize again, finally utilize solder by seal weldings such as sheet metals on bleeding point; The shortcoming of which is if adopt glass solder, runs into the difficulty identical with the second way, if adopt brazing metal soldering, how making small and light sheet metal realize resistance to air loss welding under vacuum will run into very large difficulty, and its economic benefit is not necessarily better than first kind of way.
Summary of the invention
Technical problem to be solved by this invention is the defect being to exist for existing vacuum glass pumping hole, a kind of novel vacuum glass pumping hole and preparation method thereof is provided, the making method technique of this vacuum glass pumping hole is simple, made vacuum glass comprises toughened vacuum glass and can overcome deficiency of the prior art, effectively can ensure the work-ing life of the resistance to air loss of vacuum glass and heat insulation performance, prolongation vacuum glass, and can improve vacuum glass production efficiency, reduce production cost.
In order to solve the problems of the technologies described above, the invention provides a kind of sealed structure of vacuum glass pumping hole, it is characterized in that: on the upper glass of vacuum glass, bleeding point is made in punching, preparation one wear ring around the lower surface, bleeding point of upper glass, a pit or groove is prepared in the position that the upper surface of lower-glass is corresponding with bleeding point, in the pit that the wear ring of described upper glass can insert described lower-glass or groove, be bleed-off passage between wear ring and pit or groove; After upper and lower glazing gasket, brazing metal is put into described bleeding point, being vacuumized by described bleeding point and heating makes described brazing metal be fused into liquid, described liquid retention is in the pit or groove of described lower-glass, the wear ring of described upper glass is also submerged in described liquid, utilize hydraulic seal principle by described bleeding point self-sealing, after cooling, described liquid solidifies, and realizes the airtight sealing to described bleeding point.
Wherein, the internal surface of described pit or groove can paint metals slurry, and utilizes high temperature sintering metal paste, and metal paste contributes to combining closely of brazing metal and glass.
Wherein, described wear ring can be the ring of arbitrary shape.
Further, described wear ring is the annulus concentric with described bleeding point.
Wherein, the height of described wear ring is greater than the height of vacuum layer.
Wherein, described wear ring diameter and highly preferably consider bleed-off passage and solder sealed vol and determine.
Wherein, described wear ring is preferably made up of glass or metal, preferably adopts toughened glass ink or metal paste to make when described upper glass is toughened glass.
Wherein, described wear ring adopts the directly mode such as preparation or indirect welding to be produced on described upper glass.
Further, when described wear ring adopts and directly prepares, glass paste, metal paste or the electric slurries etc. such as preferred employing cryogenic glass powder or glass ink utilize artificial or mechanical mode to be produced on described upper glass, form through high temperature sintering, the mode that the mode of described machinery preferably sprays or prints, can one to spraying for several times or printing one to several slurries; When described wear ring adopts indirect welding process to prepare, preferably adopt the metal ring close with glass expansion coefficient or metal tube to be welded on described upper glass, described welding process, preferably adopt glass solder or metal paste welding; Described material is existing commercial commodity.
Further, described metal paste (or electric slurry) contributes to welding between brazing metal with glass, and described metal paste can also serve as the transition layer between glass paste and brazing metal.
Further, make the fusing point of its fusing point of material higher than glazing gasket low temperature glass solder of described wear ring, ensure that, in glazing gasket process, described wear ring does not change.
Wherein, described brazing metal comprises low-temperature metal solder and solder, and described material is existing commercial commodity.
Further, the fusing point of fusing point lower than glass solder of described brazing metal or the use temperature of binding agent, during brazing metal fusing, the glass solder of edge sealing or binding agent remain unchanged.
Further, the shape of described brazing metal is powdery, strip, sheet or bulk, ring-type, tubulose etc.
Wherein, the height of described liquid is preferably close with the degree of depth of described pit or groove.
Wherein, described in vacuumize and bleeding point sealing, can in vacuum furnace batch carry out, also can monolithic implement; Overallly can heat glass, also can local heating bleeding point.
Wherein, described heating, can adopt conventional heating, Infrared Heating, also can adopt induction heating, LASER HEATING, can also adopt microwave heating and other suitable heating unit or heater means.
Further, described heating, can heat bulk glass, also can local heating bleeding point.
Wherein, described bleeding point after brazing metal sealing, then uses sealant sealing, and be trade mark or the metal decorative sheet of product above seal gum, seal gum can protect brazing metal, can realize two seals again to bleeding point.
Further, described seal gum preferably has secret sealing, more preferably hot melt adhesive, hot-setting adhesive or two component sealing gum.
In order to solve the problems of the technologies described above, the invention provides the making method of above-mentioned vacuum glass pumping hole, it comprises:
The first step, according to the size of required making bleeding point, on upper glass, boring makes bleeding point;
Second step, the lower surface of upper glass makes the wear ring concentric with bleeding point, the making pit concentric with bleeding point or groove on the upper surface of lower-glass, in the pit that the wear ring of upper glass can be enclosed within lower-glass or groove;
3rd step, after upper and lower glazing gasket, loads brazing metal in bleeding point, and sends in vacuum furnace;
4th step, described heating under vacuum sole is vacuumized, limit heating, be evacuated to below 0.1Pa, be warming up to more than the temperature of fusion of brazing metal, brazing metal is fused into liquid, liquid retention is in the pit or groove of lower-glass, the wear ring of upper glass also floods in a liquid, and liquid is by bleeding point self-sealing; Stop heating, with stove cooling, brazing metal solidifies and realizes airtight sealing to bleeding point afterwards, opens vacuum furnace, takes out vacuum glass;
5th step, puts into seal gum in bleeding point, Paste Product trade mark or metal decorative sheet on seal gum.
Wherein, described wear ring can be the ring of arbitrary shape.
Wherein, the internal surface of described pit or groove can paint metals slurry, and utilizes high temperature sintering metal paste, and metal paste contributes to combining closely of brazing metal and glass.
Wherein, the height of described wear ring is greater than the height of vacuum layer.
Wherein, described wear ring diameter and highly preferably consider bleed-off passage and solder sealed vol and determine.
Wherein, described wear ring is preferably made up of glass or metal, preferably adopts toughened glass ink or metal paste to make when described upper glass is toughened glass.
Wherein, described wear ring adopts the directly mode such as preparation or indirect welding to be produced on described upper glass.
Further, when described wear ring adopts and directly prepares, glass paste, metal paste or the electric slurries etc. such as preferred employing cryogenic glass powder or glass ink utilize artificial or mechanical mode to be produced on described upper glass, form through high temperature sintering, the mode that the mode of described machinery preferably sprays or prints, can one to spraying for several times or printing one to several slurries; When described wear ring adopts indirect welding process to prepare, preferably adopt the metal ring close with glass expansion coefficient or metal tube to be welded on described upper glass, described welding process, preferably adopt glass solder or metal paste welding; Described material is existing commercial commodity.
Further, described metal paste (or electric slurry) contributes to welding between brazing metal with glass, and described metal paste can also serve as the transition layer between glass paste and brazing metal.
Further, make the fusing point of its fusing point of material higher than glazing gasket low temperature glass solder of described wear ring, ensure that, in glazing gasket process, described wear ring does not change.
Wherein, described brazing metal comprises low-temperature metal solder and solder, and described material is existing commercial commodity.
Further, the fusing point of fusing point lower than glass solder of described brazing metal or the use temperature of binding agent, during brazing metal fusing, the glass solder of edge sealing or binding agent remain unchanged.
Further, the shape of described brazing metal is powdery, strip, sheet or bulk, ring-type, tubulose etc.
Wherein, the height of described liquid is preferably close with the degree of depth of described pit or groove.
Wherein, described in vacuumize and bleeding point sealing, can in vacuum furnace batch carry out, also can monolithic implement; Overallly can heat glass, also can local heating bleeding point.
Wherein, described heating, can adopt conventional heating, Infrared Heating, also can adopt induction heating, LASER HEATING, can also adopt microwave heating and other suitable heating unit or heater means.
Further, described heating, can heat bulk glass, also can local heating bleeding point.
Wherein, described seal gum preferably has secret sealing, more preferably hot melt adhesive, hot-setting adhesive or two component sealing gum.
Beneficial effect of the present invention:
Vacuum glass pumping hole of the present invention, with reference to " water seal " structure of the water exhaust system especially floor drain of falling bell-jar, according to hydraulic seal principle, is fused into the self-sealing of metal realization to bleeding point of liquid under utilizing high temperature, vacuum glass pumping hole structure of the present invention is simple, it is reliable, convenient for production, with low cost to seal, directly seal in a vacuum furnace, avoid the existing possibility of Glass tubing in melting moment air inlet of bleeding, and the exhaust temperature of glass can be improved, glass absorption and dissolved gases are thoroughly got rid of, can not there is chemical transformation in brazing metal under vacuum, solidify rear resistance to air loss good, effectively can ensure the vacuum tightness of vacuum glass vacuum layer, compared with the bleeding point of existing vacuum glass, its size of bleeding point of the present invention can be very large, its bleed-off passage sectional area is tens times of existing Glass tubing of bleeding to tens times, pumping resistance, inside and outside differential pressure is less, pumping speed, the vacuum tightness of vacuum layer is higher, thus be conducive to improving the heat insulation of vacuum glass, sound-proofing properties, extend its work-ing life, self-sealing in vacuum oven, can mass production, greatly can improve production efficiency and qualification rate, the reduction production cost of vacuum glass, the fusing point of brazing metal is easy to select, and can carry out entirety heating to toughened glass and ensure that toughened glass is unannealed, realize mass and make toughened vacuum glass.
Accompanying drawing explanation
Fig. 1 is the structural representation that lower-glass of the present invention has the vacuum glass pumping hole of pit;
Fig. 2 is the structural representation of the reeded vacuum glass pumping hole of lower-glass of the present invention.
In figure: 1. go up glass, 2. lower-glass, 3. brazing metal, 4. wear ring, 5. pit or groove, 6. seal gum, 7. trade mark or tinsel.
Embodiment
Below adopt embodiment and accompanying drawing to describe embodiments of the present invention in detail, to the present invention, how utilisation technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.
Embodiment 1: see Fig. 1, vacuum glass is made up of upper glass 1 and lower-glass 2, upper glass 1 bores a through hole and forms bleeding point, the lower surface of upper glass 1 utilizes the pit 5 that glass paste or metal paste are printed to the wear ring concentric with bleeding point, utilize mechanical workout one and bleeding point concentric on the upper surface of lower-glass 2 by mechanical application or printing technology, the wear ring 4 of upper glass 1 can insert in the pit 5 of lower-glass 2, is bleed-off passage between wear ring 4 and pit 5; Upper glass 1 is sent in High Temperature Furnaces Heating Apparatus or annealing furnace and makes wear ring 4 sinter on upper glass 1, then the upper lower-glass of low temperature glass solder in constant-pressure and high-temperature stove after involution piece is utilized to carry out edge sealing, after glass after edge sealing takes out from High Temperature Furnaces Heating Apparatus, while hot brazing metal 3 such as tin alloy is put into bleeding point, send in vacuum furnace with by glass, once can send into multiple pieces of glass; Heating under vacuum sole is vacuumized, limit heating, be evacuated to below 0.1Pa, be warming up to the temperature of fusion of brazing metal 3 tin alloy as more than 350 DEG C, brazing metal 3 tin alloy is fused into liquid retention in the pit 5 of lower-glass 2, the wear ring 4 of upper glass 1 also floods in a liquid, and liquid is by bleeding point self-sealing; Stop heating, with stove cooling, brazing metal 3 tin alloy condenses into solid, realizes airtight sealing, open vacuum furnace to bleeding point, takes out vacuum glass.
Embodiment 2: see Fig. 2, upper glass 1 bores a through hole and forms bleeding point, the lower surface of upper glass 1 utilizes glass paste or the bonding metal ring of metal paste or glass ring 4, on the upper surface of lower-glass 2, makes a groove 5, when adopting metal ring, preferably close with thermal expansion coefficient of glass metal as kovar alloy, adopt glass ring time, preferred coated metal paste, the internal surface also preferred paint metals slurry of groove 5, with reinforced seal effect; The wear ring 4 of upper glass 1 can insert in the groove 5 of lower-glass 2, and the space between wear ring 4 and groove 5 is bleed-off passage; Upper glass is sent in High Temperature Furnaces Heating Apparatus or annealing furnace and wear ring is sintered on upper glass, then the upper lower-glass of low temperature glass solder in constant-pressure and high-temperature stove after involution piece is utilized to carry out edge sealing, after glass after edge sealing takes out from High Temperature Furnaces Heating Apparatus, while hot brazing metal 3 such as zinc alloy is put into bleeding point, zinc alloy can make circular tube shaped, be inserted between the wear ring 4 of glass 1 and the groove 5 of lower-glass 2, send in vacuum furnace with by glass, once can send into multiple pieces of glass; Heating under vacuum sole is vacuumized, limit heating, be evacuated to below 0.1Pa, be warming up to the temperature of fusion of brazing metal 3 zinc alloy as more than 380 DEG C, brazing metal 3 zinc alloy is fused into liquid retention in the groove 5 of lower-glass 2, the wear ring 4 of upper glass 1 also floods in a liquid, and liquid is by bleeding point self-sealing; Stop heating, with stove cooling, brazing metal 3 zinc alloy condenses into solid, realizes airtight sealing, open vacuum furnace to bleeding point, takes out vacuum glass.Seal gum 6 is put into while hot as butyl rubber, the product brand 7 of covering above of seal gum 6, the upper surface flush of trade mark 7 and upper glass 1 in bleeding point.
All above-mentioned this intellecture properties of primary enforcement, not setting restriction this product innovation of other forms of enforcement and/or novel method.Those skilled in the art will utilize this important information, and foregoing is revised, to realize similar implementation status.But all modifications or transformation belong to the right of reservation based on product innovation of the present invention.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. the sealed structure of a vacuum glass pumping hole, it is characterized in that: on the upper glass of vacuum glass, bleeding point is made in punching, preparation one wear ring around the lower surface, bleeding point of upper glass, a pit or groove is prepared in the position that the upper surface of lower-glass is corresponding with bleeding point, described wear ring can insert in described pit or groove, is bleed-off passage between described wear ring and described pit or groove; After upper and lower glazing gasket, brazing metal is put into described bleeding point, being vacuumized by described bleeding point and heating makes described brazing metal be fused into liquid, described liquid retention is in described pit or groove, described wear ring is also submerged in described liquid, utilize hydraulic seal principle by described bleeding point self-sealing, after cooling, described liquid solidifies, and realizes the airtight sealing to described bleeding point.
2. the sealed structure of vacuum glass pumping hole as claimed in claim 1, is characterized in that: the internal surface of described pit or groove has metal paste.
3. the sealed structure of vacuum glass pumping hole as claimed in claim 1, it is characterized in that: described wear ring is made up of glass or metal, when described upper glass is toughened glass, described wear ring preferably adopts toughened glass ink or metal paste to make.
4. the sealed structure of vacuum glass pumping hole as claimed in claim 3, is characterized in that: described wear ring is made up of the metal that thermal expansivity is close with glass, or described wear ring is made up of the glass of surface application metal paste.
5. the sealed structure of vacuum glass pumping hole as claimed in claim 1, is characterized in that: described wear ring adopts the mode of directly preparation or welding to be indirectly produced on described upper glass.
6. the sealed structure of vacuum glass pumping hole as claimed in claim 5, it is characterized in that: when described wear ring is directly prepared, adopt glass paste or metal paste one to spraying for several times or print one on several slurries extremely described upper glass, forming through high temperature sintering; When described wear ring welds preparation indirectly, metal ring or metal tube, glass ring or Glass tubing is adopted to utilize glass solder or metal paste to be welded on described upper glass.
7. the sealed structure of vacuum glass pumping hole as claimed in claim 1, is characterized in that: described brazing metal comprises low-temperature metal solder and solder.
8. the sealed structure of vacuum glass pumping hole as claimed in claim 1, is characterized in that: described in vacuumize with bleeding point sealing be utilize process furnace entirety heating glass or local heating bleeding point, batch carries out or monolithic is implemented.
9. the sealed structure of vacuum glass pumping hole as claimed in claim 1, is characterized in that: described bleeding point after brazing metal sealing, then uses sealant sealing, is trade mark or the metal decorative sheet of product above seal gum.
10. the making method of the vacuum glass pumping hole sealed structure described in any one of claim 1 to 9, is characterized in that, comprising:
The first step, according to the size of required making bleeding point, on upper glass, boring makes bleeding point;
Second step, the lower surface of upper glass makes the wear ring concentric with bleeding point, the making pit concentric with bleeding point or groove on the upper surface of lower-glass, in the pit that the wear ring of upper glass can be enclosed within lower-glass or groove;
3rd step, after upper and lower glazing gasket, loads brazing metal in bleeding point, and sends in vacuum furnace;
4th step, described heating under vacuum sole is vacuumized, limit heating, be evacuated to below 0.1Pa, be warming up to more than the temperature of fusion of brazing metal, brazing metal is fused into liquid, liquid retention is in the pit or groove of lower-glass, the wear ring of upper glass also floods in a liquid, and liquid is by bleeding point self-sealing; Stop heating, with stove cooling, brazing metal solidifies and realizes airtight sealing to bleeding point afterwards, opens vacuum furnace, takes out vacuum glass;
5th step, puts into seal gum in bleeding point, Paste Product trade mark or metal decorative sheet on seal gum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298666.5A CN104291625A (en) | 2013-07-17 | 2013-07-17 | Vacuum glass air-exhaust port sealing structure and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298666.5A CN104291625A (en) | 2013-07-17 | 2013-07-17 | Vacuum glass air-exhaust port sealing structure and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104291625A true CN104291625A (en) | 2015-01-21 |
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ID=52311618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310298666.5A Withdrawn CN104291625A (en) | 2013-07-17 | 2013-07-17 | Vacuum glass air-exhaust port sealing structure and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN104291625A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676481A (en) * | 2004-04-01 | 2005-10-05 | 唐健正 | vacuum glass edge heating method and vacuum glass made thereby |
| US20120321822A1 (en) * | 2009-11-27 | 2012-12-20 | Luoyang Landglass Technology Co., Ltd | Compound Sealing Method for Vacuum Glass |
| CN102951825A (en) * | 2012-10-06 | 2013-03-06 | 戴长虹 | Metal solder-welded and groove-edge-sealed planar vacuum glass and manufacturing method thereof |
-
2013
- 2013-07-17 CN CN201310298666.5A patent/CN104291625A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676481A (en) * | 2004-04-01 | 2005-10-05 | 唐健正 | vacuum glass edge heating method and vacuum glass made thereby |
| US20120321822A1 (en) * | 2009-11-27 | 2012-12-20 | Luoyang Landglass Technology Co., Ltd | Compound Sealing Method for Vacuum Glass |
| CN102951825A (en) * | 2012-10-06 | 2013-03-06 | 戴长虹 | Metal solder-welded and groove-edge-sealed planar vacuum glass and manufacturing method thereof |
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Application publication date: 20150121 |