CN104291627A - Vacuum glass air-exhaust port and manufacturing method thereof - Google Patents
Vacuum glass air-exhaust port and manufacturing method thereof Download PDFInfo
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- CN104291627A CN104291627A CN201310298669.9A CN201310298669A CN104291627A CN 104291627 A CN104291627 A CN 104291627A CN 201310298669 A CN201310298669 A CN 201310298669A CN 104291627 A CN104291627 A CN 104291627A
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- glass
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- bleeding point
- sealing groove
- vacuum
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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
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Abstract
The invention relates to a vacuum glass air-exhaust port which is characterized in that a round hole is manufactured on the upper glass of vacuum glass, such that the air-exhaust port is obtained. The upper opening of the round hole is larger than the lower opening. A round pipe is manufactured and inserted into the round hole, such that a sealing groove is formed between the round pipe and the upper part of the round hole. A sealing cap is provided above the round pipe. The edge of the sealing cap is inserted into the sealing groove. When the upper glass and the lower glass are edge-sealed, a metal solder is placed into the sealing groove or on the sealing cap. The air-exhaust port is vacuumed and heated, such that the metal solder is molten into liquid. The liquid is retained in the sealing groove. The edge of the sealing cap is also immersed in the liquid. With a liquid sealing principle, the air-exhaust port is automatically sealed. When the temperature is reduced, the liquid is cured, and air-tight sealing of the air-exhaust port is realized. The method provided by the invention can be applied in mass productions. With the method, vacuum glass and tempered 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 a kind of vacuum glass pumping hole and making method.
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, decomposition reaction can be there is and produce gas in many oxide compounds, not only change the composition of solder but also make solder 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 vacuum glass pumping hole, it is characterized in that: on the upper glass of vacuum glass, make a call to a circular hole make bleeding point, the suitable for reading of circular hole is greater than end opening, producing a pipe inserts in circular hole, the height of pipe is close with the thickness of upper glass, the bottom of pipe and circular hole matches, form a sealing groove between pipe and the top of circular hole, a sealing cover is had above described pipe, the edge of described sealing cover is inserted in described sealing groove, is bleed-off passage between described sealing cover and described sealing groove; After upper and lower glazing gasket, brazing metal is put on described sealing groove or sealing cover, being vacuumized by described bleeding point and heating makes described brazing metal be fused into liquid, 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, after cooling, described liquid solidifies, and realizes the airtight sealing to described bleeding point.
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.
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, the inner side edge of described sealing groove is lower than the upper surface of described upper glass.
Wherein, the internal surface of described sealing groove scribbles metal paste, and when glass tempering or edge sealing, sintering is on the internal surface of described sealing groove.
Wherein, together with being welded by glass solder or metal paste between described pipe with described upper glass.
Further, when the internal surface of described sealing groove scribbles metal paste, can weld between described pipe with described upper glass, only need closely cooperate.
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 contributes 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 (or electric slurry) 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.
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, and the suitable for reading of bleeding point is greater than end opening;
Second step, getting a pipe inserts in bleeding point, the external diameter of pipe and the lower internal diameter of bleeding point match, the height of pipe is close with the thickness of upper glass, the end opening of pipe and bleeding point closely cooperates, form a sealing groove between pipe and the top of bleeding point, sealing groove internal surface can paint metals slurry or utilize High Temperature Furnaces Heating Apparatus or annealing furnace or edge sealing stove to carry out sintering or welding at bottom placing glass solder; According to the size of sealing groove, make a sealing cover, the edge of sealing cover can be inserted in sealing groove;
3rd step, after upper and lower glazing gasket, loads brazing metal in sealing groove or is placed on sealing cover, and sending 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 sealing groove, and the edge of sealing cover is also flooded 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 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.
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, the inner side edge of described sealing groove is lower than the upper surface of described upper glass.
Wherein, the internal surface of described sealing groove scribbles metal paste, and when glass tempering or edge sealing, sintering is on the internal surface of described sealing groove.
Wherein, together with being welded by glass solder or metal paste between described pipe with described upper glass.
Further, when the internal surface of described sealing groove scribbles metal paste, can weld between described pipe with described upper glass, only need closely cooperate.
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 contributes 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 (or electric slurry) 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 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 the water sealed tank of pot for pickling or " water seal " structure of bell-jar floor drain, 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 existing vacuum glass pumping hole, 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 of vacuum glass pumping hole of the present invention;
Fig. 2 is the structural representation that lower-glass of the present invention has the vacuum glass pumping hole of two wear rings.
In figure: 1. go up glass, 2. lower-glass, 3. pipe, 4. sealing groove, 5. sealing cover, 6. brazing metal, 7. seal gum, 8. 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 V-type through hole and forms bleeding point, producing a metal circular tube 3 inserts in bleeding point, the height of the pipe 3 and thickness of upper glass 1 is close, top is lower than the upper surface of upper glass 1, pipe 3 closely cooperates with the end opening of bleeding point, forms a sealing groove 4 between pipe 3 and the top of bleeding point, the bottom placing glass solder of sealing groove 4, pipe 3 and upper glass 1 is welded together when edge sealing; According to the size of sealing groove 4, make a sealing cover 5, 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; 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, glass after edge sealing takes out from High Temperature Furnaces Heating Apparatus, while hot brazing metal 6 put into sealing groove as tin alloy or be placed on sealing cover, sending 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 300 DEG C, brazing metal 6 tin alloy is fused into liquid retention in sealing groove 4, the edge of sealing cover 5 is also flooded in a liquid, and liquid is by bleeding point self-sealing; 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.
Embodiment 2: see Fig. 2, substantially the same manner as Example 1, difference is that bleeding point is made up of the circular hole of two upper big, lower small, and pipe 3 and little circular hole closely cooperate, and pipe 3 changes Glass tubing into, the inwall paint metals slurry of sealing groove 4, make metal paste sinter during upper and lower glass tempering, brazing metal 6 changes magnesium alloy into, and brazing metal 6 condenses into after solid realizes airtight sealing to bleeding point, open vacuum furnace, take out vacuum glass.Seal gum 7 is put into while hot as butyl rubber, the product brand 8 of covering above of seal gum 7, the upper surface flush of trade mark 8 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. a vacuum glass pumping hole, it is characterized in that: on the upper glass of vacuum glass, make a call to a circular hole make bleeding point, the suitable for reading of circular hole is greater than end opening, producing a pipe inserts in circular hole, the height of pipe is close with the thickness of upper glass, and the bottom of pipe and circular hole matches, form a sealing groove between pipe and the top of circular hole, has a sealing cover above described pipe, the edge of described sealing cover is inserted in described sealing groove, is bleed-off passage between described sealing cover and described sealing groove; After upper and lower glazing gasket, brazing metal is put on described sealing groove or sealing cover, being vacuumized by described bleeding point and heating makes described brazing metal be fused into liquid, 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, after cooling, described liquid solidifies, and realizes the airtight sealing to described bleeding point.
2. vacuum glass pumping hole 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.
3. vacuum glass pumping hole as claimed in claim 1 or 2, is characterized in that: the inner side edge of described sealing groove is lower than the upper surface of described upper glass.
4. the vacuum glass pumping hole as described in any one of claims 1 to 3, is characterized in that: the internal surface of described sealing groove scribbles metal paste.
5. vacuum glass pumping hole as claimed in claim 1, is characterized in that: the top of described sealing cover is not higher than the upper surface of described upper glass.
6. the vacuum glass pumping hole as described in claim 1 or 5, is characterized in that: described pipe and sealing cover are 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.
7. vacuum glass pumping hole as claimed in claim 1, is characterized in that: described brazing metal comprises low-temperature metal solder and solder.
8. 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 vacuum glass pumping hole 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 vacuum glass pumping hole 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, and the suitable for reading of bleeding point is greater than end opening;
Second step, getting a pipe inserts in bleeding point, the external diameter of pipe and the lower internal diameter of bleeding point match, the height of pipe is close with the thickness of upper glass, the end opening of pipe and bleeding point closely cooperates, form a sealing groove between pipe and the top of bleeding point, sealing groove internal surface can paint metals slurry or utilize High Temperature Furnaces Heating Apparatus or annealing furnace or edge sealing stove to carry out sintering or welding at bottom placing glass solder; According to the size of sealing groove, make a sealing cover, the edge of sealing cover can be inserted in sealing groove;
3rd step, after upper and lower glazing gasket, loads brazing metal in sealing groove or is placed on sealing cover, and sending 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 sealing groove, and the edge of sealing cover is also flooded 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 |
|---|---|---|---|
| CN201310298669.9A CN104291627A (en) | 2013-07-17 | 2013-07-17 | Vacuum glass air-exhaust port and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298669.9A CN104291627A (en) | 2013-07-17 | 2013-07-17 | Vacuum glass air-exhaust port and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104291627A true CN104291627A (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310298669.9A Withdrawn CN104291627A (en) | 2013-07-17 | 2013-07-17 | Vacuum glass air-exhaust port and manufacturing method thereof |
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| CN (1) | CN104291627A (en) |
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| 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 |
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| CN1676481A (en) * | 2004-04-01 | 2005-10-05 | 唐健正 | vacuum glass edge heating method and vacuum glass made thereby |
| CN201068427Y (en) * | 2006-12-20 | 2008-06-04 | 董镛 | Vacuum glass using micro-sphere as support with multi-layer sealing extraction opening |
| 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 |
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2013
- 2013-07-17 CN CN201310298669.9A patent/CN104291627A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1676481A (en) * | 2004-04-01 | 2005-10-05 | 唐健正 | vacuum glass edge heating method and vacuum glass made thereby |
| CN201068427Y (en) * | 2006-12-20 | 2008-06-04 | 董镛 | Vacuum glass using micro-sphere as support with multi-layer sealing extraction opening |
| CN101597133A (en) * | 2008-06-05 | 2009-12-09 | 左树森 | The package design of extraction opening of multi-layer vacuum glass |
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Application publication date: 20150121 |
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