CN103420581A - Double-vacuum layer exhaust opening seal structure and manufacturing method thereof - Google Patents
Double-vacuum layer exhaust opening seal structure and manufacturing method thereof Download PDFInfo
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- CN103420581A CN103420581A CN2013102986646A CN201310298664A CN103420581A CN 103420581 A CN103420581 A CN 103420581A CN 2013102986646 A CN2013102986646 A CN 2013102986646A CN 201310298664 A CN201310298664 A CN 201310298664A CN 103420581 A CN103420581 A CN 103420581A
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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
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- 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
A double-vacuum layer exhaust opening seal structure is characterized in that openings are formed in upper glass and middle glass of vacuum glass to serve as exhaust openings; a large upper insert and a small upper insert are manufactured, a large lower connector and a small lower connector are manufactured, the large upper insert and the small upper insert are hermetically connected with the upper glass and the middle glass respectively; the large lower connector and the small lower connector are hermetically connected with the middle glass and the lower glass respectively, the lower connectors can store liquid, and the large upper insert and the small upper insert are inserted into the large lower connector and the small lower connector respectively; after edge sealing for the upper, lower and middle glass, metal solder is placed into the exhaust openings or the upper inserts, then vacuumizing and heating are performed on a vacuum heating furnace, so that the metal solder can be molten to be liquid; the liquid is stored in the lower connectors, and the upper inserts or the lower ends thereof are immersed in the liquid, so that the exhaust openings are automatically sealed by utilizing the liquid sealing principle. With adoption of the method disclosed by the invention, batch production can be realized, production efficiency and qualification rate of the vacuum glass can be greatly improved, and production cost is lowered.
Description
Technical field
The invention belongs to the vacuum glass field, relate in particular to sealed structure of a kind of pair of vacuum layer bleeding point and preparation method thereof.
Background technology
Existing vacuum glass generally is comprised of two or three blocks of sheet glass, glass surrounding low temperature glass solder edge sealing, and there is small upholder centre, makes to form between two blocks of glass the thin vacuum layer of 0.1～0.2mm thickness by bleeding.Due to the heat transfer that there is no gas, transaudient, the internal surface of glass can have again transparent low thermal radiation 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: the one, and edge sealing, the 2nd, the laying of upholder, the 3rd, the acquisition of vacuum and maintaining.The mode that existing vacuum glass obtains vacuum mainly contains following two kinds: (1) is at first in a slice punching on glass, to prepare bleeding point, then weld the Glass tubing of bleeding on bleeding point when with low temperature glass solder, adding hot edge seal, finally heating vacuumizes and the sealing by fusing Glass tubing of bleeding, because the Glass tubing of bleeding protrudes from glass surface, so also need the bleeding point position is protected; (2) be not need prefabricated bleeding point above glass, but be placed in vacuum furnace after the glass that limit section scribbles low temperature glass solder is closed to sheet, add hot edge seal and directly form vacuum layer under vacuum.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, the resistance of bleeding 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 to be made by many oxide, under high temperature, vacuum, in volatile substances in the air of scolder absorption and moisture, scolder, the gas that scolder dissolves in process of production and scolder, the decomposition of partial oxide etc. all can cause a large amount of bubble of generation in scolder, the properties that has greatly weakened scolder is resistance to air loss especially, causes the feasibility of this kind of mode to be greatly affected.Also having a kind of mode is between above two kinds of modes, at prefabricated bleeding point on glass, then after the high temperature edge sealing, vacuumize again, finally utilize scolder by seal weldings such as sheet metals on bleeding point; The shortcoming of this mode is if adopt glass solder run into the difficulty identical with the second way, if adopt the brazing metal soldering how to make small and light sheet metal realize that the resistance to air loss welding will run into very large difficulty under vacuum condition, its economic benefit not necessarily is better than first kind of way.
Summary of the invention
Technical problem to be solved by this invention is to be the defect existed 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, the vacuum glass of made comprises that toughened vacuum glass can overcome deficiency of the prior art, can effectively guarantee 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 costs.
In order to solve the problems of the technologies described above, the invention provides the sealed structure of a kind of pair of vacuum layer bleeding point, it is characterized in that: on the upper glass of vacuum glass and intermediate glass, bleeding point is made in punching respectively, produce two small one and large one upper plug-in unit and two small one and large one lower fittings, described large upper plug-in unit and described upper glass are sealed connected together, described little upper plug-in unit and described intermediate glass are sealed connected together, and there is the passage that connects vacuum layer and bleeding point the centre of described upper plug-in unit; Described large lower fitting and described intermediate glass are sealed connected together, described little lower fitting and described lower-glass are sealed connected together, described lower fitting can be retained liquid, described large and small upper plug-in unit inserts respectively in large and small described lower fitting, between described upper plug-in unit and described lower fitting, is bleed-off passage; After upper lower-glass and intermediate glass edge sealing, brazing metal is put into described bleeding point or on plug-in unit, described bleeding point is vacuumized, also heats and make described brazing metal be fused into liquid, described liquid retention is in described lower fitting, described upper plug-in unit or its lower end also are submerged in described liquid, utilize the 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 upper plug-in unit and described lower fitting are preferably made by metal or glass, when described upper plug-in unit and described lower fitting are made of metal, preferably adopt the metal close with the glass swelling coefficient; When described upper plug-in unit and described lower fitting are made by glass, the preferred position paint metals slurry of plug-in unit and described lower fitting contacting metal scolder on described, and utilize the high temperature sintering metal paste, metal paste contributes to combining closely of brazing metal and glass.
Wherein, described upper plug-in unit and described lower fitting can be arbitrary shapes ring or pipe;
Further, described upper plug-in unit and described lower fitting are annulus or the pipes concentric with described bleeding point;
Further, described upper plug-in unit is the pipe that edge is arranged at top.
Wherein, described upper plug-in unit adopt directly preparation or indirectly the modes such as welding be produced on described upper glass and intermediate glass, described lower fitting adopts the directly modes such as preparation or indirect welding to be produced on described intermediate glass and described lower-glass.
Further, when described upper plug-in unit and described lower fitting adopt directly preparation, preferably adopt glass paste, metal paste or the electric slurries etc. such as cryogenic glass powder or glass ink to utilize artificial or mechanical mode to be produced on described upper lower-glass and intermediate glass, through high temperature sintering, form, the mode that the mode of described machinery preferably sprays or prints, can one to spraying or print one to several slurries for several times;
Further, described lower fitting is directly to prepare groove or the pit on lower-glass or the groove on intermediate glass;
Further, when described upper plug-in unit and described lower fitting adopt indirect welding process to prepare, preferably adopt glass solder or metal paste welding; Described material is existing commercial commodity;
Further, described metal paste (or electric slurry) contributes to the welding between brazing metal and glass, and described metal paste can also serve as the transition layer between glass paste and brazing metal;
Further, make its fusing point of material of described upper plug-in unit and described lower fitting higher than the fusing point of low temperature glass solder or the use temperature of binding agent for glazing gasket, guarantee that, in the glazing gasket process, described wear ring does not change.
Wherein, described brazing metal comprises low-temperature metal scolder and solder, and described material is existing commercial commodity.
Further, the fusing point of described brazing metal is lower than the use temperature of fusing point or the binding agent of glass solder, and during the brazing metal fusing, glass solder or the binding agent of edge sealing remain unchanged;
Further, described brazing metal is shaped as 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 lower fitting.
Wherein, described vacuumizing and the bleeding point sealing can be carried out in batches in vacuum furnace, also can implement by monolithic; Can wholely heat glass, also can the 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 the local heating bleeding point.
Wherein, described bleeding point, after brazing metal sealing, then is used sealant sealing, above seal gum, is trade mark or the metal finishing sheet of product, and seal gum can be protected brazing metal, can realize two seals to bleeding point again.
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 and lower-glass, bleeding point is made in boring respectively, and wherein the bleeding point of upper glass is greater than the bleeding point of lower-glass;
Second step, plug-in unit in making, upper plug-in unit adopts the directly mode such as preparation or indirect welding to be produced on upper glass and intermediate glass; The lower fitting of making, lower fitting adopts the directly mode such as preparation or indirect welding to be produced on intermediate glass or lower-glass; Upper plug-in unit inserts in lower fitting, leaves bleed-off passage between upper plug-in unit and lower fitting;
The 3rd step, after upper and lower glass and intermediate glass edge sealing, be respectively charged into brazing metal in bleeding point or lower fitting, and send in vacuum furnace;
The 4th step, to the heating under vacuum sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to the temperature of fusion of brazing metal more than, brazing metal is fused into liquid, liquid retention is in lower fitting, and upper plug-in unit or its lower end also are submerged in liquid, and liquid is by the bleeding point self-sealing; Stop heating, with stove cooling, brazing metal solidifies realizes airtight sealing afterwards to bleeding point, opens vacuum furnace, takes out vacuum glass;
The 5th step is put into seal gum in bleeding point, Paste Product trade mark or metal finishing sheet on seal gum.
Wherein, described upper plug-in unit and described lower fitting are preferably made by metal or glass, when described upper plug-in unit and described lower fitting are made of metal, preferably adopt the metal close with the glass swelling coefficient; When described upper plug-in unit and described lower fitting are made by glass, the preferred position paint metals slurry of plug-in unit and described lower fitting contacting metal scolder on described, and utilize the high temperature sintering metal paste, metal paste contributes to combining closely of brazing metal and glass.
Wherein, described upper plug-in unit and described lower fitting can be arbitrary shapes ring or pipe;
Further, described upper plug-in unit and described lower fitting are annulus or the pipes concentric with described bleeding point;
Further, described upper plug-in unit is the pipe that edge is arranged at top.
Wherein, described upper plug-in unit adopt directly preparation or indirectly the modes such as welding be produced on described upper glass and intermediate glass, described lower fitting adopts the directly modes such as preparation or indirect welding to be produced on described intermediate glass and described lower-glass.
Further, when described upper plug-in unit and described lower fitting adopt directly preparation, preferably adopt glass paste, metal paste or the electric slurries etc. such as cryogenic glass powder or glass ink to utilize artificial or mechanical mode to be produced on described upper lower-glass and intermediate glass, through high temperature sintering, form, the mode that the mode of described machinery preferably sprays or prints, can one to spraying or print one to several slurries for several times;
Further, described lower fitting is directly to prepare groove or the pit on lower-glass or the groove on intermediate glass;
Further, when described upper plug-in unit and described lower fitting adopt indirect welding process to prepare, preferably adopt glass solder or metal paste welding; Described material is existing commercial commodity;
Further, described metal paste (or electric slurry) contributes to the welding between brazing metal and glass, and described metal paste can also serve as the transition layer between glass paste and brazing metal;
Further, make its fusing point of material of described upper plug-in unit and described lower fitting higher than the fusing point of low temperature glass solder or the use temperature of binding agent for glazing gasket, guarantee that, in the glazing gasket process, described wear ring does not change.
Wherein, described brazing metal comprises low-temperature metal scolder and solder, and described material is existing commercial commodity.
Further, the fusing point of described brazing metal is lower than the use temperature of fusing point or the binding agent of glass solder, and during the brazing metal fusing, glass solder or the binding agent of edge sealing remain unchanged;
Further, described brazing metal is shaped as 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 lower fitting.
Wherein, described vacuumizing and the bleeding point sealing can be carried out in batches in vacuum furnace, also can implement by monolithic; Can wholely heat glass, also can the 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 the 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, " water seal " structure with reference to the water exhaust system especially floor drain of falling the bell-jar, according to the hydraulic seal principle, utilize under high temperature the metal that is fused into liquid to realize the self-sealing to bleeding point, and can seal respectively two vacuum layer simultaneously, vacuum glass pumping hole of the present invention is simple in structure, it is reliable, convenient for production, with low cost to seal, directly sealing in vacuum oven, avoided the existing possibility of Glass tubing in melting moment air inlet of bleeding, and can improve the exhaust temperature of glass, glass absorption and dissolved gases are thoroughly got rid of, under vacuum condition, chemical transformation can not occur in brazing metal, solidify rear resistance to air loss good, can effectively guarantee the vacuum tightness of vacuum glass vacuum layer, with the bleeding point of existing vacuum glass, compare, its size of bleeding point of the present invention can be very large, its bleed-off passage sectional area is tens times to tens times of the existing Glass tubing of bleeding, the resistance of bleeding, inside and outside differential pressure is less, pumping speed, the vacuum tightness of vacuum layer is higher, thereby be conducive to improve the heat insulation of vacuum glass, sound-proofing properties, extend its work-ing life, self-sealing in vacuum oven, can mass production, can greatly improve vacuum glass production efficiency and qualification rate, reduce production costs, the fusing point of brazing metal is easy to select, and can carry out the integral body heating and guarantee that toughened glass is unannealed toughened glass, realizes mass making toughened vacuum glass.
The accompanying drawing explanation
The structural representation that Fig. 1 is the bleeding point of plug-in unit and lower fitting in direct preparation of the present invention;
The structural representation that Fig. 2 is the bleeding point of plug-in unit and lower fitting in indirect welding of the present invention.
In figure: 1. upper glass, 2. lower-glass, 3. brazing metal, 4. go up plug-in unit, 5. descends fitting, 6. seal gum, 7. trade mark or tinsel, 8. intermediate glass.
Embodiment
Below adopt embodiment and accompanying drawing to describe embodiments of the present invention in detail, to the present invention, how the utilisation technology means solve technical problem whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.
Embodiment 1: referring to Fig. 1, vacuum glass is comprised of upper glass 1, lower-glass 2 and intermediate glass 8, bores respectively a through hole and form bleeding point on upper glass 1 and intermediate glass 8, and wherein the through hole on upper glass 1 is greater than the through hole on intermediate glass 8; On the lower surface of upper glass 1 and intermediate glass 8, on the upper surface of intermediate glass 8 and lower-glass 2, utilize mechanical application or printing technology by glass paste or metal paste print make respectively with concentric one of bleeding point on plug-in unit 4 and two lower fittings 5, the upper plug-in unit 4 of upper glass 1 and intermediate glass 8 can insert respectively between two lower fittings 5 of intermediate glass 8 and lower-glass 2, between upper plug-in unit 4 and lower fitting 5, is bleed-off passage; By upper lower-glass and intermediate glass 8 send in High Temperature Furnaces Heating Apparatus or annealing furnace make upper plug-in unit 4 with lower fitting 5 sintering on upper lower-glass and intermediate glass 8, then utilize the low temperature glass solder upper lower-glass after involution piece and intermediate glass 8 in the constant-pressure and high-temperature stove to carry out edge sealing, glass after edge sealing is from High Temperature Furnaces Heating Apparatus takes out, while hot brazing metal 3 is put into to bleeding point as tin alloy, that tin alloy foil is rolled into is cylindric, be inserted between plug-in unit 4 and lower fitting 5; Send in vacuum furnace with being about to glass, can once send into multiple pieces of glass; To the heating under vacuum sole vacuumize, limit heating, be evacuated to below 0.1Pa, be warming up to the temperature of fusion of brazing metal 3 tin alloys as more than 350 ℃, brazing metal 3 tin alloys are fused into liquid retention in upper and lower two lower fittings 5, go up up and down plug-in unit 4 and also be submerged in liquid, liquid is by the bleeding point self-sealing; Stop heating, lower the temperature with stove, brazing metal 3 tin alloys condense into solid, and bleeding point is realized to airtight sealing, open vacuum furnace, take out vacuum glass.
Embodiment 2: referring to Fig. 2, vacuum glass is comprised of upper glass 1, lower-glass 2 and intermediate glass 8, the through hole that bores respectively a big upper and lower small mouth on upper glass 1 and intermediate glass 8 forms bleeding point, produce small one and large one two metals or Glass tubing as upper plug-in unit 4, the edge of upper plug-in unit 4 welds together by glass solder or metal paste with upper glass 1 and intermediate glass 8 respectively, and the top of upper plug-in unit 4 is respectively lower than the upper surface of upper glass 1 with higher than the upper surface of intermediate glass 8; Produce small one and large one two metals or Glass tubings or ring be welded on respectively intermediate glass 8 and lower-glass 2 by glass solder or metal paste upper surface on as lower fitting 5; When upper plug-in unit 4 adopts metal to make with lower fitting 5, preferably the metal close with thermal expansion coefficient of glass is as kovar alloy, when upper plug-in unit 4 adopts glass to make with lower fitting 5, preferably at junction metallizing slurry, with the reinforced seal effect; Two upper plug-in units 4 of size can insert respectively in two lower fittings 5 of size, between upper plug-in unit 4 and lower fitting 5, are bleed-off passage; Utilize the low temperature glass solder upper lower-glass after involution piece and intermediate glass 8 in the constant-pressure and high-temperature stove to carry out edge sealing, glass after edge sealing is from High Temperature Furnaces Heating Apparatus takes out, while hot brazing metal 3 is put into to bleeding point or upper plug-in unit 4 as zinc alloy, send in vacuum furnace with being about to glass, can once send into multiple pieces of glass; To the heating under vacuum sole vacuumize, limit heating, be evacuated to below 0.1Pa, be warming up to the temperature of fusion of brazing metal 3 zinc alloys as more than 380 ℃, brazing metal 3 zinc alloys are fused into liquid retention in lower fitting 5, the lower end of upper plug-in unit 4 also is submerged in liquid, and liquid is by the bleeding point self-sealing; Stop heating, lower the temperature with stove, brazing metal 3 zinc alloys condense into solid, and bleeding point is realized to airtight sealing, open vacuum furnace, take out vacuum glass.Put into while hot seal gum 6 as butyl rubber in bleeding point, the top covering product brand 7 of seal gum 6, the upper surface flush of trade mark 7 and upper glass 1.
All above-mentioned these intellecture properties of primary enforcement, do not set other forms of restriction and implement this product innovation and/or novel method.Those skilled in the art can utilize this information to revise foregoing to realize similar implementation status.But, all rights that belong to reservation based on modification of the present invention or transformation.
The above, be only preferred embodiment of the present invention, is not the present invention to be done to the restriction of other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away from, any simple modification, equivalent variations and the remodeling above embodiment done 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 two vacuum layer bleeding points, it is characterized in that: on the upper glass of vacuum glass and intermediate glass, bleeding point is made in punching respectively, produce two small one and large one upper plug-in unit and two small one and large one lower fittings, described large upper plug-in unit and described upper glass are sealed connected together, described little upper plug-in unit and described intermediate glass are sealed connected together, and there is the passage that connects vacuum layer and bleeding point the centre of described upper plug-in unit; Described large lower fitting and described intermediate glass are sealed connected together, described little lower fitting and described lower-glass are sealed connected together, described lower fitting can be retained liquid, described large and small upper plug-in unit inserts respectively in large and small described lower fitting, between described upper plug-in unit and described lower fitting, is bleed-off passage; After upper lower-glass and intermediate glass edge sealing, brazing metal is put into described bleeding point or on plug-in unit, described bleeding point is vacuumized, also heats and make described brazing metal be fused into liquid, described liquid retention is in described lower fitting, described upper plug-in unit or its lower end also are submerged in described liquid, utilize the 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 as claimed in claim 1 pair of vacuum layer bleeding point, it is characterized in that: described upper plug-in unit and described lower fitting are made by metal or glass; When described upper plug-in unit and described lower fitting are made of metal, preferably adopt the metal close with the glass swelling coefficient; When described upper plug-in unit and described lower fitting are made by glass, the preferred position paint metals slurry of plug-in unit and described lower fitting contacting metal scolder on described, and utilize the high temperature sintering metal paste.
3. the sealed structure of as claimed in claim 1 pair of vacuum layer bleeding point is characterized in that: described upper plug-in unit adopts the mode of directly preparation or welding indirectly to be produced on described upper glass and described intermediate glass.
4. the sealed structure of as claimed in claim 1 pair of vacuum layer bleeding point is characterized in that: described lower fitting adopts the mode of directly preparation or welding indirectly to be produced on described intermediate glass and described lower-glass.
5. as the sealed structure of 1 or 4 described pair of vacuum layer bleeding point of claim, it is characterized in that: described lower fitting is directly to prepare groove or the pit on lower-glass or the groove on intermediate glass.
6. as the sealed structure of 3 or 4 described pairs of vacuum layer bleeding points of claim, it is characterized in that: when directly prepared by described upper plug-in unit or lower fitting, adopt glass paste or metal paste one to spraying for several times or printing one to several slurries to described upper glass or, on lower-glass or intermediate glass, form through high temperature sintering; When described upper plug-in unit or lower fitting weld preparation indirectly, adopt metal ring or metal tube, glass ring or Glass tubing to utilize glass solder or metal paste to be welded on described upper glass or lower-glass or intermediate glass.
7. the sealed structure of as claimed in claim 1 pair of vacuum layer bleeding point, it is characterized in that: described brazing metal comprises low-temperature metal scolder and solder.
8. the sealed structure of as claimed in claim 1 pair of vacuum layer bleeding point is characterized in that: described to vacuumize with bleeding point sealing be to utilize process furnace whole heating glass or local heating bleeding point, carry out in batches or monolithic is implemented.
9. the sealed structure of as claimed in claim 1 pair of vacuum layer bleeding point is characterized in that: described bleeding point, after the brazing metal sealing, then is used sealant sealing, above seal gum, is trade mark or the metal finishing sheet of product.
10. the making method of the described vacuum glass pumping hole sealed structure of claim 1 to 9 any one, is characterized in that, comprising:
The first step, according to the size of required making bleeding point, on upper glass and lower-glass, bleeding point is made in boring respectively, and wherein the bleeding point of upper glass is greater than the bleeding point of lower-glass;
Second step, plug-in unit in making, upper plug-in unit adopts the directly mode such as preparation or indirect welding to be produced on upper glass and intermediate glass; The lower fitting of making, lower fitting adopts the directly mode such as preparation or indirect welding to be produced on intermediate glass or lower-glass; Upper plug-in unit inserts in lower fitting, leaves bleed-off passage between upper plug-in unit and lower fitting;
The 3rd step, after upper and lower glass and intermediate glass edge sealing, be respectively charged into brazing metal in bleeding point or lower fitting, and send in vacuum furnace;
The 4th step, to the heating under vacuum sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to the temperature of fusion of brazing metal more than, brazing metal is fused into liquid, liquid retention is in lower fitting, and upper plug-in unit or its lower end also are submerged in liquid, and liquid is by the bleeding point self-sealing; Stop heating, with stove cooling, brazing metal solidifies realizes airtight sealing afterwards to bleeding point, opens vacuum furnace, takes out vacuum glass;
The 5th step is put into seal gum in bleeding point, Paste Product trade mark or metal finishing sheet on seal gum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102986646A CN103420581A (en) | 2013-07-17 | 2013-07-17 | Double-vacuum layer exhaust opening seal structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102986646A CN103420581A (en) | 2013-07-17 | 2013-07-17 | Double-vacuum layer exhaust opening seal structure and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103420581A true CN103420581A (en) | 2013-12-04 |
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|---|---|---|---|
| CN2013102986646A Withdrawn CN103420581A (en) | 2013-07-17 | 2013-07-17 | Double-vacuum layer exhaust opening seal structure and manufacturing method thereof |
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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 |
| CN102976592A (en) * | 2012-10-06 | 2013-03-20 | 戴长虹 | Flat vacuum glass welded by using metal welding material and provided with strip frame edge sealing, and manufacturing method thereof |
-
2013
- 2013-07-17 CN CN2013102986646A patent/CN103420581A/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 |
| CN102976592A (en) * | 2012-10-06 | 2013-03-20 | 戴长虹 | Flat vacuum glass welded by using metal welding material and provided with strip frame edge sealing, and manufacturing method thereof |
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Application publication date: 20131204 |
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