CN103420584B - Double-vacuum layer exhaust opening structure and manufacturing method thereof - Google Patents
Double-vacuum layer exhaust opening structure and manufacturing method thereof Download PDFInfo
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- CN103420584B CN103420584B CN201310298768.7A CN201310298768A CN103420584B CN 103420584 B CN103420584 B CN 103420584B CN 201310298768 A CN201310298768 A CN 201310298768A CN 103420584 B CN103420584 B CN 103420584B
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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
A kind of double-vacuum layer exhaust opening structure, it is characterized in that two bleeding points are made in punching on the upper glass and intermediate glass of vacuum glass respectively, a seal groove is prepared over or within respectively at two bleeding points, a sealing lid is had respectively on two seal grooves, the edge sealing lid is inserted in seal groove, and sealing between lid and seal groove is bleed-off passage；In brazing metal being respectively put into two seal grooves after upper and lower glass and intermediate glass edge sealing or seal cover, brazing metal is made to be fused into liquid bleeding point evacuation heating, liquid is deposited in seal groove, the edge sealing lid is also flooded in a liquid, utilize liquid seal principle by bleeding point self-sealing, liquid solidification after cooling, it is achieved the airtight sealing to bleeding point.The method of the present invention can mass production, production efficiency and qualification rate, the reduction production cost of vacuum glass can be greatly improved.
Description
Technical field
The invention belongs to vacuum glass field, particularly relate to a kind of double-vacuum layer exhaust opening structure and manufacturing method thereof.
Background technology
Existing vacuum glass is usually and is made up of two pieces or three blocks of plate glass, glass surrounding low temperature glass solder edge sealing, and there is small supporter centre, makes to be formed between two blocks of glass the thin vacuum layer of 0.1～0.2mm thickness by bleeding.Owing to not having the heat transfer of gas, transaudient, the inner surface of glass can have again transparent low heat-emissive film, so vacuum glass has the most heat insulation and soundproof effect, is one of best energy-saving glass of performance.
The key technology of existing vacuum glass has: one is edge sealing, and two is laying of supporter, and three is acquisition and the maintenance of vacuum.Existing vacuum glass obtains the mode of vacuum mainly 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, weld glass tubing of bleeding; finally heated evacuation sealing by fusing are bled glass tubing; owing to bleeding, glass tubing protrudes from glass surface, so also needing to protect bleeding point position；(2) it is above glass, to be not required to prefabricated bleeding point, but the glass that edge scribbles 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 the lowest: owing to pump-line is very thin, vacuum layer is the thinnest, pumping resistance is big, speed is little, and needs monolithic to extract, so production efficiency is the lowest；The second way can solve the shortcoming that first kind of way exists, but owing to low temperature glass solder is made up of many oxide, under a vacuum at high temperature, in 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 substantial amounts of bubble, significantly weaken the properties especially air-tightness of solder, cause the feasibility of this kind of mode to be greatly affected.Also having a kind of mode is between both the above mode, i.e. prefabricated bleeding point on glass, then after high temperature edge sealing, evacuation again, finally utilizes solder the seal welds such as foil to be connected on bleeding point；The shortcoming of which is if using glass solder, runs into the difficulty identical with the second way, if using brazing metal soldering, the most how to make small and light foil realize air-tightness welding and will run into the biggest difficulty, its economic benefit is not necessarily better than first kind of way.
Summary of the invention
The technical problem to be solved is the defect being to exist for existing vacuum glass pumping hole, a kind of novel double-vacuum layer exhaust opening structure and preparation method thereof is provided, the manufacture method technique of this vacuum glass pumping hole is simple, made vacuum glass includes that toughened vacuum glass can overcome deficiency of the prior art, can effectively ensure that air-tightness and heat insulation performance, the service life of prolongation vacuum glass of vacuum glass, and the production efficiency of vacuum glass can be improved, reduce production cost.
In order to solve above-mentioned technical problem, the invention provides a kind of double-vacuum layer exhaust opening structure, it is characterized in that: on the upper glass and intermediate glass of vacuum glass, two bleeding points are made in punching respectively, a seal groove is prepared over or within respectively at two bleeding points, a sealing lid is had respectively on said two seal groove, the described edge sealing lid is inserted in described seal groove, and described sealing between lid and described seal groove is bleed-off passage；In brazing metal being respectively put into two described seal grooves after upper and lower glass and intermediate glass edge sealing or seal cover, described brazing metal is made to be fused into liquid described bleeding point evacuation heating, described liquid is deposited in described seal groove, the described edge sealing lid is also submerged in described liquid, utilize liquid seal principle by described bleeding point self-sealing, described liquid solidification after cooling, it is achieved the airtight sealing to described bleeding point.
Wherein, described seal groove can be the annular groove of arbitrary shape.
Further, the cross section that described seal groove is concentric with described bleeding point is V-type or U-shaped annular groove.
Wherein, described seal groove uses directly preparation or is indirectly prepared from, and when described seal groove is directly prepared, is to make an annular groove respectively around upper glass and the upper surface of intermediate glass, bleeding point；When described seal groove is prepared indirectly, it is to utilize metal tube or glass tubing to insert in the bleeding point of glass and intermediate glass respectively, between metal tube or glass tubing and bleeding point, forms seal groove.
Further, when described seal groove is prepared indirectly, the bottom of metal tube or glass tubing closely cooperates with upper glass and intermediate glass respectively or welds together.
Wherein, the inner surface of described seal groove is preferably coated with metal paste or electric slurry, is sintered in when glass tempering or edge sealing on the inner surface of described seal groove.
Wherein, described seal groove and depending on sealing diameter and highly preferred consideration bleed-off passage and the solder sealed vol of lid.
Further, the described top sealing lid is not higher than the upper surface of described upper glass.
Wherein, the described lid that seals preferably is made up of glass or metal, and the described lid that seals is preferably to be sintered in by metal paste during glass in the described edge sealing lid.
Further, described metal paste or electric slurry contribute to welding between brazing metal with glass, and described metal paste serves as the transition zone between glass and brazing metal；
Further, described metal paste is made up of metal powder, glass dust, organic resin and solvent etc., and described metal paste can use commercially available prod.
Wherein, described brazing metal includes that low-temperature metal solder and solder, described material are existing commercial commodity.
Further, the fusing point of described brazing metal is less than fusing point or the use temperature of binding agent of glass solder, and during brazing metal fusing, glass solder or the binding agent of edge sealing keep constant.
Further, described brazing metal be shaped as powdery, strip, lamellar or bulk, ring-type, tubulose etc..
Wherein, the height of the highly preferred and described seal groove inner side edge of described liquid is close.
Wherein, described evacuation and bleeding point seal, and can carry out by batch, it is also possible to monolithic is implemented in vacuum furnace；Overall can heat glass, it is also possible to local heating bleeding point.
Wherein, described heating, conventional heating, Infrared Heating can be used, it would however also be possible to employ sensing heating, LASER HEATING, it is also possible to use microwave heating and other suitable heater or heater means.
Further, described heating, glass can be heated overall, it is also possible to local heating bleeding point.
Wherein, described bleeding point is after brazing metal seals, then with sealant sealing, fluid sealant above is trade mark or the metal decorative sheet of product, and fluid sealant can be protected brazing metal, bleeding point can be realized two seals again.
Further, the preferred organic fluid sealant of described fluid sealant, more preferably PUR, hot-setting adhesive or double-component fluid sealant.
In order to solve above-mentioned technical problem, the invention provides the manufacture method of above-mentioned double-vacuum layer exhaust opening structure, comprising:
The first step, according to the size of required making bleeding point, on upper glass and lower glass, boring makes bleeding point respectively, wherein goes up the bleeding point bleeding point more than lower glass of glass；
Second step, uses the mode of directly preparation or preparation indirectly to make seal groove respectively at two bleeding points, according to the size of seal groove, makes a sealing lid respectively, and the edge sealing lid can be inserted in seal groove respectively；
After 3rd step, upper and lower glass and intermediate glass edge sealing, in brazing metal is respectively charged into two seal grooves or be placed on sealing and cover, and send in vacuum furnace；
4th step, to described heating in vacuum sole evacuation, limit heating, is evacuated to below 0.1Pa, is warming up to more than the fusion temperature of brazing metal, brazing metal is fused into liquid, liquid is deposited in seal groove, and the edge sealing lid is also flooded in a liquid, and liquid is by bleeding point self-sealing；Stop heating, lower the temperature with stove, after brazing metal solidification, bleeding point is realized airtight sealing, open vacuum furnace, take out vacuum glass；
5th step, puts into fluid sealant in bleeding point, Paste Product trade mark or metal decorative sheet on fluid sealant.
Wherein, described seal groove can be the annular groove of arbitrary shape.
Further, the cross section that described seal groove is concentric with described bleeding point is V-type or U-shaped annular groove.
Wherein, described seal groove uses directly preparation or is indirectly prepared from, when described seal groove is directly prepared, it is to make an annular groove around upper glass and the upper surface of intermediate glass, bleeding point, when described seal groove is prepared indirectly, it is to utilize metal tube or glass tubing to insert in the bleeding point of upper glass and intermediate glass, between metal tube or glass tubing and bleeding point, forms seal groove.
Further, when described seal groove is prepared indirectly, the bottom of metal tube or glass tubing closely cooperates with upper glass and intermediate glass respectively or welds together.
Wherein, the inner surface of described seal groove is preferably coated with metal paste or electric slurry, is sintered in when glass tempering or edge sealing on the inner surface of described seal groove.
Wherein, described seal groove and depending on sealing diameter and highly preferred consideration bleed-off passage and the solder sealed vol of lid.
Further, the described top sealing lid is not higher than the upper surface of described upper glass.
Wherein, the described lid that seals preferably is made up of glass or metal, and the described lid that seals is preferably to be sintered in by metal paste during glass in the described edge sealing lid.
Further, described metal paste or electric slurry contribute to welding between brazing metal with glass, and described metal paste serves as the transition zone between glass and brazing metal；
Further, described metal paste is made up of metal powder, glass dust, organic resin and solvent etc., and described metal paste can use commercially available prod.
Wherein, described brazing metal includes that low-temperature metal solder and solder, described material are existing commercial commodity.
Further, the fusing point of described brazing metal is less than fusing point or the use temperature of binding agent of glass solder, and during brazing metal fusing, glass solder or the binding agent of edge sealing keep constant.
Further, described brazing metal be shaped as powdery, strip, lamellar or bulk, ring-type, tubulose etc..
Wherein, the height of the highly preferred and described seal groove inner side edge of described liquid is close.
Wherein, described evacuation and bleeding point seal, and can carry out by batch, it is also possible to monolithic is implemented in vacuum furnace；Overall can heat glass, it is also possible to local heating bleeding point.
Wherein, described heating, conventional heating, Infrared Heating can be used, it would however also be possible to employ sensing heating, LASER HEATING, it is also possible to use microwave heating and other suitable heater or heater means.
Further, described heating, glass can be heated overall, it is also possible to local heating bleeding point.
Wherein, the preferred organic fluid sealant of described fluid sealant, more preferably PUR, hot-setting adhesive or double-component fluid sealant.
Beneficial effects of the present invention:
The vacuum glass pumping hole of the present invention, with reference to water sealed tank or " water seal " structure of bell-jar floor drain of pickle jar, according to liquid seal principle, utilizes the metal being fused into liquid under high temperature to realize the self-sealing to bleeding point；The vacuum glass pumping hole simple in construction of the present invention, seal reliable, convenient for production, with low cost；The most directly seal, avoid the existing glass tubing probability in melted moment air inlet of bleeding, and the delivery temperature of glass can be improved, glass absorption and the gas dissolved is made thoroughly to get rid of, brazing metal will not occur chemical change under vacuum, after solidification, air-tightness is good, can effectively ensure that the vacuum of vacuum glass vacuum layer, compared with existing vacuum glass pumping hole, its size of the bleeding point of the present invention can be the biggest, its bleed-off passage sectional area is tens times to tens times of existing glass tubing of bleeding, pumping resistance, inside and outside differential pressure is less, the speed of exhaust, the vacuum of vacuum layer is higher, thus be conducive to improving the heat insulation of vacuum glass, sound insulation value, extend its service life；Self-sealing in vacuum drying oven, it is possible to mass production, can be greatly improved production efficiency and qualification rate, the reduction production cost of vacuum glass；The fusing point of brazing metal is readily selected, safety glass can carry out overall heating and ensure that safety glass is unannealed, it is achieved mass makes toughened vacuum glass.
Accompanying drawing explanation
Fig. 1 is the double-vacuum layer exhaust opening structure structural representation directly preparing seal groove of the present invention；
Fig. 2 is the double-vacuum layer exhaust opening structure structural representation indirectly preparing seal groove of the present invention.
In figure: 1. go up glass, 2. descend glass, 3. brazing metal, 4. seal groove, 5. seal lid, 6. fluid sealant, 7. trade mark or sheet metal, 8. intermediate glass.
Detailed description of the invention
Hereinafter using embodiment and accompanying drawing to describe embodiments of the present invention in detail, to the present invention, how application technology means solve technical problem whereby, and the process that realizes 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, lower glass 2 and intermediate glass 8, bores a through hole respectively and form bleeding point on upper glass 1 and intermediate glass 8, wherein goes up the through hole on glass 1 more than the through hole on intermediate glass 8；Utilizing core drill to make a U-shaped seal groove 4 concentric with bleeding point respectively on the upper surface of upper glass 1 and intermediate glass 8, the inner side edge of seal groove 4 is less than upper glass 1 and the upper surface of intermediate glass 8；Size according to seal groove 4 makes a sealing lid 5 respectively, and the edge sealing lid 5 can be inserted in seal groove 4 respectively, seals the height upper surface less than upper glass 1 of lid 5, and sealing between lid 5 and seal groove 4 is bleed-off passage；By the inner surface paint metals slurry of seal groove 4, it is then fed in annealing furnace making upper and lower glass and intermediate glass 8 tempering, or directly utilize low temperature glass solder glass up and down in constant-pressure and high-temperature stove after involution piece and intermediate glass 8 carries out edge sealing, glass after edge sealing is after high temperature furnace takes out, while hot brazing metal 3 such as ashbury metal is respectively put in seal groove 4 or is placed on sealing lid 5, with sending in vacuum furnace by glass, can once send into multiple pieces of glass；To heating in vacuum sole evacuation, limit heating, it is evacuated to below 0.1Pa, is warming up to the fusion temperature of brazing metal 3 ashbury metal such as more than 300 DEG C, brazing metal 3 ashbury metal is fused into liquid and is deposited in seal groove 4, the edge sealing lid 5 is also flooded in a liquid, and liquid is by bleeding point self-sealing；Stopping heating, lower the temperature with stove, brazing metal 3 ashbury metal condenses into solid, bleeding point is realized airtight sealing, opens vacuum furnace, takes out vacuum glass.
Embodiment 2: see Fig. 2, vacuum glass is made up of upper glass 1, lower glass 2 and intermediate glass 8, on upper glass 1 and on intermediate glass 8, bore a V-type through hole respectively form bleeding point, produce in a pipe insertion bleeding point with lower edge respectively, the top of pipe is less than upper glass 1 and the upper surface of intermediate glass 8, pipe end opening with bleeding point respectively closely cooperates, forming a seal groove 4 between pipe and the top of bleeding point respectively, the bottom of seal groove 4 is placed glass solder, is welded together with upper glass 1 and intermediate glass 8 respectively by pipe when edge sealing；According to the size of seal groove 4, making a sealing lid 5 respectively, the edge sealing lid 5 is inserted in seal groove 4, seals the height upper surface less than upper glass 1 of lid 5, and sealing between lid 5 and seal groove 4 is bleed-off passage；Low temperature glass solder glass up and down in constant-pressure and high-temperature stove after involution piece and intermediate glass 8 is utilized to carry out edge sealing, glass after edge sealing takes out from high temperature furnace, while hot brazing metal 3 such as magnesium alloy is respectively put in seal groove or is placed in sealing and cover, with sending in vacuum furnace by glass, can once send into multiple pieces of glass；To heating in vacuum sole evacuation, limit heating, it is evacuated to below 0.1Pa, is warming up to the fusion temperature of brazing metal 3 magnesium alloy such as more than 350 DEG C, brazing metal 3 magnesium alloy is fused into liquid and is deposited in seal groove 4, the edge sealing lid 5 is also flooded in a liquid, and liquid is by bleeding point self-sealing；Stopping heating, lower the temperature with stove, brazing metal 3 condenses into solid, bleeding point is realized airtight sealing, opens vacuum furnace, takes out vacuum glass.Fluid sealant 6 such as butyl rubber is put into while hot in bleeding point, the above covering product brand 7 of fluid sealant 6, trade mark 7 and the upper surface flush of upper glass 1.
All above-mentioned primary these intellectual properties of enforcement, do not set this new product of enforcement and/or the new method limiting other forms.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 new product of the present invention.
The above, be only presently preferred embodiments of the present invention, is not the restriction that the present invention makees other form, and any those skilled in the art are changed possibly also with the technology contents of the disclosure above or are modified as the Equivalent embodiments of equivalent variations.But every without departing from technical solution of the present invention content, any simple modification, equivalent variations and remodeling above example made according to the technical spirit of the present invention, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a double-vacuum layer exhaust opening structure, it is characterized in that: on the upper glass and intermediate glass of vacuum glass, two bleeding points are made in punching respectively, periphery at two bleeding points prepares a seal groove over or within respectively, a sealing lid is had respectively on said two seal groove, the described edge sealing lid is inserted in described seal groove, described seal between lid and described seal groove as bleed-off passage and forms " water seal " structure；In brazing metal being respectively put into two described seal grooves after upper and lower glass and intermediate glass edge sealing or seal cover, described brazing metal is made to be fused into liquid described bleeding point evacuation heating, described liquid is deposited in described seal groove, the described edge sealing lid is also submerged in described liquid, utilize liquid seal principle by described bleeding point self-sealing, described liquid solidification after cooling, it is achieved the airtight sealing to described bleeding point.
2. double-vacuum layer exhaust opening structure as claimed in claim 1, it is characterised in that: the cross section that described seal groove is concentric with described bleeding point is V-type or U-shaped annular groove.
3. double-vacuum layer exhaust opening structure as claimed in claim 1, it is characterized in that: described seal groove uses directly preparation or is indirectly prepared from, when described seal groove is directly prepared, it is around the bleeding point of upper glass top surface and around the bleeding point of intermediate glass upper surface, to make an annular groove respectively；When described seal groove is prepared indirectly, it is to utilize metal tube or glass tubing to insert in the bleeding point of glass and intermediate glass respectively, between metal tube or glass tubing and bleeding point, forms seal groove.
4. double-vacuum layer exhaust opening structure as claimed in claim 3, it is characterised in that: when described seal groove is prepared indirectly, the bottom of described metal tube or glass tubing closely cooperates with upper glass and intermediate glass respectively or welds together.
5. double-vacuum layer exhaust opening structure as claimed in claim 1, it is characterised in that: the inner surface of described seal groove scribbles metal paste.
6. double-vacuum layer exhaust opening structure as claimed in claim 1, it is characterised in that: the described lid that seals is made up of glass or metal, and the described lid that seals is for being sintered in metal paste in the described edge sealing lid during glass.
7. double-vacuum layer exhaust opening structure as claimed in claim 1, it is characterised in that: described brazing metal includes low-temperature metal solder and solder.
8. double-vacuum layer exhaust opening structure as claimed in claim 1, it is characterised in that: described evacuation and bleeding point seal be utilize heating furnace entirety heating glass or local heating bleeding point, batch carries out or monolithic is implemented.
9. the double-vacuum layer exhaust opening structure as described in any one of claim 1 to 8, it is characterised in that: described bleeding point is after brazing metal seals, then with sealant sealing, fluid sealant above is trade mark or the metal decorative sheet of product.
10. the manufacture method of the double-vacuum layer exhaust opening structure described in any one of claim 1 to 9, it is characterised in that including:
The first step, according to the size of required making bleeding point, on upper glass and intermediate glass, boring makes bleeding point respectively, wherein goes up the bleeding point bleeding point more than intermediate glass of glass；
Second step, uses the mode of directly preparation or preparation indirectly to make seal groove respectively at two bleeding points, according to the size of seal groove, makes a sealing lid respectively, and the edge sealing lid can be inserted in seal groove respectively；
After 3rd step, upper and lower glass and intermediate glass edge sealing, in brazing metal is respectively charged into two seal grooves or be placed on sealing and cover, and send in vacuum furnace；
4th step, to described heating in vacuum sole evacuation, limit heating, is evacuated to below 0.1Pa, is warming up to more than the fusion temperature of brazing metal, brazing metal is fused into liquid, liquid is deposited in seal groove, and the edge sealing lid is also flooded in a liquid, and liquid is by bleeding point self-sealing；Stop heating, lower the temperature with stove, after brazing metal solidification, bleeding point is realized airtight sealing, open vacuum furnace, take out vacuum glass；
5th step, puts into fluid sealant in bleeding point, Paste Product trade mark or metal decorative sheet on fluid sealant.
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| CN201310298768.7A CN103420584B (en) | 2013-07-17 | 2013-07-17 | Double-vacuum layer exhaust opening structure and manufacturing method thereof |
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| CN201310298768.7A CN103420584B (en) | 2013-07-17 | 2013-07-17 | Double-vacuum layer exhaust opening structure and manufacturing method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544073Y (en) * | 2002-09-05 | 2003-04-09 | 京东方科技集团股份有限公司 | Air discharge hole closure device for high thermal-insulation sound-insulation glass |
| CN101597133A (en) * | 2008-06-05 | 2009-12-09 | 左树森 | The package design of extraction opening of multi-layer vacuum glass |
| CN102079620A (en) * | 2009-11-27 | 2011-06-01 | 洛阳兰迪玻璃机器有限公司 | Closing method, closing structure and closing device for vacuum glass pumping hole |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9700612D0 (en) * | 1997-02-20 | 1997-02-20 | Cecap Ab | Sensor element with integrated reference pressure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544073Y (en) * | 2002-09-05 | 2003-04-09 | 京东方科技集团股份有限公司 | Air discharge hole closure device for high thermal-insulation sound-insulation glass |
| CN101597133A (en) * | 2008-06-05 | 2009-12-09 | 左树森 | The package design of extraction opening of multi-layer vacuum glass |
| CN102079620A (en) * | 2009-11-27 | 2011-06-01 | 洛阳兰迪玻璃机器有限公司 | Closing method, closing structure and closing device for vacuum glass pumping hole |
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Denomination of invention: Construction and Manufacturing Method of Double Vacuum Layer Air Extraction Port Effective date of registration: 20230803 Granted publication date: 20160810 Pledgee: Cangzhou Bank Co.,Ltd. Hengshui Anping Sub branch Pledgor: ANPING JINLONG VEHICLE EQUIPMENT Co.,Ltd. Registration number: Y2023980050863 |
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