CN104291595A - Sealing structure of vacuum glass getter and manufacturing method thereof - Google Patents
Sealing structure of vacuum glass getter and manufacturing method thereof Download PDFInfo
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- CN104291595A CN104291595A CN201310298522.XA CN201310298522A CN104291595A CN 104291595 A CN104291595 A CN 104291595A CN 201310298522 A CN201310298522 A CN 201310298522A CN 104291595 A CN104291595 A CN 104291595A
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- glass
- getter
- sealing
- vacuum
- bleeding point
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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 discloses a sealing structure of a vacuum glass getter. A manufacturing method of the sealing structure is characterized by comprising the following steps: drilling a circular hole in upper glass of vacuum glass to form an extraction opening; making a circular tube, inserting the circular tube into the extraction opening, welding the upper part of the circular tube together with the upper glass, turning the lower part of the circular tube upwards to form a sealing groove, and covering the upper part of the sealing groove with a sealing cover, wherein the edge of the sealing cover is inserted into the sealing groove; sealing the edges of the upper glass and lower glass, putting the getter into the extraction opening, covering the sealing cover, and putting a metal solder into the sealing groove or onto the sealing cover; and vacuumizing the extraction opening, and heating the vacuumized extraction opening. The getter is automatically activated at a high temperature and in vacuum. Meanwhile, the metal solder is molten into liquid at a high temperature; the liquid remains in the sealing groove; and the edge of the sealing cover is submerged into the liquid. The extraction opening is automatically sealed by using a liquid sealing principle, and the getter is sealed in a vacuum layer. Through adoption of the method, mass production can be realized; the production efficiency and yield of vacuum glass can be increased greatly; and the production cost is reduced.
Description
Technical field
The invention belongs to vacuum glass field, particularly relate to seal construction of a kind of vacuum glass getter 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 major way that existing vacuum glass maintains vacuum adopts electrodeless solder edge sealing and lay getter in vacuum layer, getter is for acquisition high vacuum, there is the features such as economic, easy, effective, lasting, production long lifetime, vacuum glass that is highly reliable, dominance energy are played an important role.Because the vacuum layer space of vacuum glass is very little, glass is again transparent, also need protection and the activation of considering getter, so it is very difficult for laying getter in vacuum layer.The setting method of traditional getter in vacuum glass is first under vacuo that getter is packaged, then be positioned in the groove that is opened in advance on glass, at vacuum glass edge sealing, vacuumize, seal bleeding point after, recycling laser or infrared rays etc. open the encapsulation activated degasser of getter, the shortcoming of this mode be getter encapsulating and lay complex process, getter amount very little, affect mechanical property that is attractive in appearance and glass.
Summary of the invention
Technical problem to be solved by this invention is the defect being to exist for the seal construction of existing vacuum glass getter, seal construction of a kind of novel vacuum glass getter and preparation method thereof is provided, the making method technique of the seal construction of this vacuum glass getter is simple, made vacuum glass comprises toughened vacuum glass and can overcome in prior art the deficiency of laying getter, effectively can ensure the condition of high vacuum degree of vacuum glass vacuum layer, extend the work-ing life of vacuum glass, and the production efficiency that can improve containing getter vacuum glass, reduce production cost.
In order to solve the problems of the technologies described above, the invention provides a kind of seal construction of vacuum glass getter, it is characterized in that: on the upper glass of vacuum glass, make a call to a circular hole make bleeding point, producing a pipe inserts in bleeding point, the top of pipe is together with upper glass solder, formation one sealing groove is upwards dug in the bottom of pipe, and a sealing cover is arranged at the top of described sealing groove, and the edge of described sealing cover is inserted in described sealing groove, upper, after lower-glass edge sealing, getter is put into bleeding point, cover sealing cover, again brazing metal is put on described sealing groove or sealing cover, described bleeding point is vacuumized, and heat, at high temperature, automatic activation getter under high vacuum, high temperature makes described brazing metal be fused into liquid simultaneously, described liquid retention is in described sealing groove, the edge of described sealing cover is also submerged in described liquid, utilize hydraulic seal principle by described bleeding point self-sealing, described getter is also sealed in vacuum layer, after cooling, described liquid solidifies, realize airtight sealing.
In order to solve the problems of the technologies described above, the invention provides the making method of the seal construction of above-mentioned vacuum glass getter, it comprises:
The first step, according to the size of required making bleeding point, on upper glass, boring makes bleeding point;
Second step, the pipe that the internal diameter producing an external diameter and bleeding point matches, formation sealing groove is upwards dug in the bottom of pipe; Inserted by pipe in bleeding point, the upper outside of pipe, together with upper glass solder, according to the size of sealing groove, makes a sealing cover, and the edge of sealing cover can be inserted in sealing groove;
3rd step, after upper and lower glazing gasket, puts into getter bleeding point, covers sealing cover, then brazing metal is put on described sealing groove or sealing cover, and send 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; Getter automatic activation under high temperature, high vacuum, brazing metal is also fused into liquid; Liquid retention is in sealing groove, and the edge of sealing cover is also flooded in a liquid, and liquid is by bleeding point self-sealing, and getter is also sealed in vacuum layer; Stop heating, with stove cooling, realize airtight sealing after brazing metal solidifies, open vacuum furnace, take 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 getter comprises evaporable air-absorbing agent and nonevaporable getter.
Wherein, described getter is powdery, granular, banded, the various ways such as tubulose, ring-type, column.
Wherein, described getter can directly put into described bleeding point, also can be contained in a container and put into described bleeding point again.
Wherein, described circular hole is a V shaped hole or is made up of the circular hole of two upper big, lower small.
Wherein, described pipe is metal circular tube or glass round tube.
Further, when described pipe is metal tube, preferably adopt the metal that thermal expansivity is close with glass, as kovar alloy etc.
Further, when described pipe is Glass tubing, the internal surface of preferred described sealing groove scribbles metal paste, by high temperature sintering on the internal surface of described sealing groove.
Wherein, described sealing groove can be the annular recesses of arbitrary shape.
Further, described sealing groove is the cross section concentric with described bleeding point is V-type or U-shaped annular recesses.
Wherein, described sealing groove and sealing cover diameter and highly preferably consider bleed-off passage and solder sealed vol and determine.
Further, the top of described sealing cover is not higher than the upper surface of described upper glass.
Wherein, described sealing cover is preferably made up of glass or metal, is preferably sintered in the edge of described sealing cover by metal paste when described sealing cover is glass.
Further, described metal paste or electric slurry contribute to welding between brazing metal with glass, and described metal paste serves as the transition layer between glass and brazing metal.
Further, described metal paste is made up of metal powder, glass powder, organic resin and solvent etc., and described metal paste can adopt commercially available prod.
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 height of described sealing groove inner side edge.
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.
Beneficial effect of the present invention:
The seal construction of vacuum glass getter of the present invention, structure is simple, it is reliable, convenient for production, with low cost to seal; Getter does not need to encapsulate under vacuo but is directly placed in bleeding point, and also do not need to slot on the glass surface, not only technique is simple, cost is low, and does not affect the mechanical property of glass and the outward appearance of vacuum glass; In a vacuum furnace under high temperature, high vacuum, not only can direct activated degasser, and can effectively remove getter surface absorption gas, getter is regenerated, ensure that the gettering ability of getter; Its space of bleeding point of the present invention comparatively speaking can be very large, so more substantial getter can be laid, the vacuum tightness of the vacuum layer time that is higher but also that maintain not only can be made longer, thus be conducive to heat insulation, the sound-proofing properties that improve vacuum glass, 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 schematic diagram of the seal construction of vacuum glass getter of the present invention.
In figure: 1. go up glass, 2. lower-glass, 3. pipe, 4. sealing groove, 5. sealing cover, 6. brazing metal, 7. getter.
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: see accompanying drawing, vacuum glass is made up of upper glass 1 and lower-glass 2, upper glass 1 bores a through hole and forms bleeding point, producing a metal circular tube 3 inserts in bleeding point, the lower end of pipe 3 is upwards dug and is formed sealing groove 4, outside and the upper glass 1 of pipe 3 are welded together by glass solder or metal paste, and the top of pipe 3 is lower than the upper surface of upper glass 1; Make a sealing cover 5 according to the size of sealing groove 4, the edge of sealing cover 5 can be inserted in sealing groove 4, and the height of sealing cover 5, lower than the upper surface of upper glass 1, is bleed-off passage between sealing cover 5 and sealing groove 4; Upper lower-glass is carried out tempering, or directly utilize the upper lower-glass of low temperature glass solder in constant-pressure and high-temperature stove after involution piece to carry out edge sealing, after glass after edge sealing takes out from High Temperature Furnaces Heating Apparatus, while hot getter 7 put into bleeding point, cover sealing cover 5, brazing metal 6 is put into sealing groove 4 as tin alloy or is placed on sealing cover 5, 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 6 tin alloy as more than 350 DEG C; Getter automatic activation under high temperature, high vacuum, brazing metal 6 tin alloy is fused into liquid retention in sealing groove 4, and the edge of sealing cover 5 is also flooded in a liquid, and liquid is by bleeding point self-sealing, and getter is also sealed in vacuum layer; Stop heating, with stove cooling, brazing metal 6 tin alloy condenses into solid, realizes airtight sealing, open vacuum furnace to bleeding point, takes out vacuum glass.
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 seal construction of a vacuum glass getter, it is characterized in that: on the upper glass of vacuum glass, make a call to a circular hole make bleeding point, producing a pipe inserts in bleeding point, the top of pipe is together with upper glass solder, formation one sealing groove is upwards dug in the bottom of pipe, one sealing cover is arranged at the top of described sealing groove, and the edge of described sealing cover is inserted in described sealing groove, upper, after lower-glass edge sealing, getter is put into bleeding point, cover sealing cover, again brazing metal is put on described sealing groove or sealing cover, described bleeding point is vacuumized, and heat, at high temperature, automatic activation getter under high vacuum, high temperature makes described brazing metal be fused into liquid simultaneously, described liquid retention is in described sealing groove, the edge of described sealing cover is also submerged in described liquid, utilize hydraulic seal principle by described bleeding point self-sealing, described getter is also sealed in vacuum layer, after cooling, described liquid solidifies, realize airtight sealing.
2. the seal construction of vacuum glass getter as claimed in claim 1, is characterized in that: described getter comprises evaporable air-absorbing agent and nonevaporable getter.
3. the seal construction of vacuum glass getter as claimed in claim 1, is characterized in that: described getter can directly put into described bleeding point, also can be contained in a container and put into described bleeding point again.
4. the seal construction of vacuum glass getter as claimed in claim 1, is characterized in that: described sealing groove is the cross section concentric with described bleeding point is V-type or U-shaped annular recesses.
5. the seal construction of vacuum glass getter as claimed in claim 1, it is characterized in that: described pipe is metal circular tube or glass round tube, when described pipe is metal tube, adopt the metal that thermal expansivity is close with glass, when described pipe is Glass tubing, the internal surface sintering of described sealing groove has metal paste.
6. the seal construction of vacuum glass getter as claimed in claim 1, is characterized in that: described sealing cover is made up of glass or metal, is sintered in the edge of described sealing cover by metal paste when described sealing cover is glass.
7. the seal construction of vacuum glass getter as claimed in claim 1, is characterized in that: described brazing metal comprises low-temperature metal solder and solder.
8. the seal construction of vacuum glass getter 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 seal construction of the vacuum glass getter as described in any one of claim 1 to 8, 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 seal construction of the vacuum glass getter 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 pipe that the internal diameter producing an external diameter and bleeding point matches, formation sealing groove is upwards dug in the bottom of pipe; Inserted by pipe in bleeding point, the upper outside of pipe, together with upper glass solder, according to the size of sealing groove, makes a sealing cover, and the edge of sealing cover can be inserted in sealing groove;
3rd step, after upper and lower glazing gasket, puts into getter bleeding point, covers sealing cover, then brazing metal is put on described sealing groove or sealing cover, and send 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; Getter automatic activation under high temperature, high vacuum, brazing metal is also fused into liquid; Liquid retention is in sealing groove, and the edge of sealing cover is also flooded in a liquid, and liquid is by bleeding point self-sealing, and getter is also sealed in vacuum layer; Stop heating, with stove cooling, realize airtight sealing after brazing metal solidifies, open vacuum furnace, take 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 |
|---|---|---|---|
| CN201310298522.XA CN104291595A (en) | 2013-07-17 | 2013-07-17 | Sealing structure of vacuum glass getter and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298522.XA CN104291595A (en) | 2013-07-17 | 2013-07-17 | Sealing structure of vacuum glass getter and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104291595A true CN104291595A (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310298522.XA Withdrawn CN104291595A (en) | 2013-07-17 | 2013-07-17 | Sealing structure of vacuum glass getter and manufacturing method thereof |
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| 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 |
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| CN102951809A (en) * | 2012-10-06 | 2013-03-06 | 戴长虹 | Planar vacuum glass welded by metal solders in microwave manner and subjected to edge sealing by groove, and manufacturing method of glass |
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2013
- 2013-07-17 CN CN201310298522.XA patent/CN104291595A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1575263A (en) * | 2001-10-25 | 2005-02-02 | 日本板硝子株式会社 | Glass panel and method of manufacturing the glass panel |
| JP2003192399A (en) * | 2001-12-25 | 2003-07-09 | Nippon Sheet Glass Co Ltd | Cover for glass panel suction hole and method of using the same |
| CN2564692Y (en) * | 2002-07-26 | 2003-08-06 | 唐健正 | Vacuum glass with multi-vacuum layers |
| 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 |
| CN1601040A (en) * | 2003-09-23 | 2005-03-30 | 京东方科技集团股份有限公司 | High safe vacuum glass and fabricating method |
| CN101597133A (en) * | 2008-06-05 | 2009-12-09 | 左树森 | The package design of extraction opening of multi-layer vacuum glass |
| CN102951809A (en) * | 2012-10-06 | 2013-03-06 | 戴长虹 | Planar vacuum glass welded by metal solders in microwave manner and subjected to edge sealing by groove, and manufacturing method of glass |
Non-Patent Citations (1)
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Application publication date: 20150121 |
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