CN103086589B - A kind of vacuum glass pressure reduction method for sealing - Google Patents
A kind of vacuum glass pressure reduction method for sealing Download PDFInfo
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- CN103086589B CN103086589B CN201110358677.9A CN201110358677A CN103086589B CN 103086589 B CN103086589 B CN 103086589B CN 201110358677 A CN201110358677 A CN 201110358677A CN 103086589 B CN103086589 B CN 103086589B
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Abstract
A kind of vacuum glass pressure reduction method for sealing, comprise cleaning cutting glass plate, bore aspirating hole, place supporter, place extraction pipe and glass for bonding powder, the step such as heat fused glass for bonding in vacuum furnace, it is characterized in that: when the fusing of glass for bonding powder produces bubble, in quick Raise vacuum process furnace, gas pressure intensity pushes glass for bonding powder melt in the space between the levels glass of vacuum glass raw sheet.Push for preventing glass for bonding powder melt to exceed in the middle of vacuum glass raw sheet and preset region and blocking layer can be set inside vacuum glass raw sheet.
Description
Technical field
The present invention relates to glass sealing field, especially a kind of vacuum glass pressure reduction method for sealing.
Technical background
With in glass for bonding powder sweating soldering building course, can produce a large amount of bubble in glass for bonding powder melting process, producing the reason of bubble is that glass for bonding powder adsorbs gas that many air, water and glass for bonding powder dissolve in process of production and the low melting point volatile component that glass for bonding powder contains self.In order to eliminate bubble, usual way be add finings, raise glass for bonding powder melt temperature, reduce glass for bonding powder liquation liquid level pressure (vacuum stripping bubble), prolongation heat-up time etc.Although these methods can eliminate bubble, all there is long, the defect such as temperature is high heat-up time.And due to vacuum glass raw sheet levels glass between space distance be less than 1 millimeter, glass for bonding powder melt viscosity is comparatively large, and glass for bonding powder melt not easily infiltrates in the space between levels glass.In some patents, in the space infiltrated between levels glass to guide glass for bonding powder melt, taking a upper strata glass edge to grind chamfering, increasing space, facilitating glass for bonding powder melt to infiltrate.Also someone proposes directly glass for bonding powder to be filled in the space between levels glass when placing glass for bonding powder.These methods can be dealt with problems to a certain extent, but be the increase in operation, raise the cost, and due to the space between levels glass less, bubble in glass for bonding powder melt in space is not easily got rid of, and the existence of bubble also reduces the intensity of glass for bonding congealed solid.
Summary of the invention
Main purpose of the present invention is to provide a kind of vacuum glass pressure reduction method for sealing.Reduce air bubble content in glass for bonding congealed solid with this, improve glass for bonding congealed solid intensity, reduce gas leakage probability, reduce heat-up time, reduce energy consumption.
The technology of the present invention solution is as follows:
A kind of vacuum glass pressure reduction method for sealing, comprise cleaning cutting glass plate, bore aspirating hole, place supporter, place extraction pipe and glass for bonding powder, the step such as heat fused glass for bonding in vacuum furnace, it is characterized in that: the gas pressure intensity in quick Raise vacuum process furnace when the fusing of glass for bonding powder produces bubble, utilize in vacuum oven and pressure reduction between vacuum glass cavity, the space (as space in Fig. 3 17) between levels glass glass for bonding powder melt being pushed vacuum glass raw sheet.The gas pressure intensity in quick Raise vacuum process furnace when the fusing of glass for bonding powder produces bubble, because extraction pipe internal diameter is in 1 millimeter, it is larger that heating under vacuum furnace gas enters resistance suffered in vacuum glass raw sheet cavity, what in such vacuum glass raw sheet cavity, pressure raised is slow, in vacuum glass raw sheet cavity, pressure is less than gas pressure intensity in vacuum furnace within for some time, there is pressure reduction on both sides, under the effect of this pressure reduction, glass for bonding powder melt is pushed into the space between the levels glass of vacuum glass raw sheet.Along with pressure in vacuum glass raw sheet cavity raises, both sides pressure differential collapses.This venting boosting---the process of pumped down can be repeatedly, this is because extract heating under vacuum furnace gas out with vacuum pump, furnace gas pressure declines slower, and the empty intracavity gas of vacuum glass raw sheet has enough time slowly can be discharged by aspirating hole, in vacuum glass raw sheet cavity, in gas pressure intensity and vacuum furnace, gas pressure intensity difference is very little, pressure reduction is very little, and glass for bonding powder melt can not be pushed out the space between the levels glass of vacuum glass raw sheet.Certain capillarity also can cause a part of glass for bonding powder melt to be inhaled into space between the levels glass of vacuum glass raw sheet.When glass for bonding powder melt surrounding gas pressure raises, under ambient pressure effect, in glass for bonding powder melt, bubble is reduced by compression, in addition under ambient pressure effect, in bubble, the solubleness of gas dissolving in glass for bonding powder melt increases, and also causes bubble to reduce and even disappears.
Above-mentioned vacuum glass pressure reduction method for sealing, is characterized in that: push for preventing glass for bonding powder melt to exceed in the middle of vacuum glass raw sheet and preset region and can arrange blocking layer inside vacuum glass raw sheet.The height on blocking layer is the same with the height of supporter.If 3 in Fig. 3 is exactly blocking layer.
Above-mentioned vacuum glass pressure reduction method for sealing, is characterized in that: the temperature keeping also progressively reducing glass for bonding powder melt after raising glass for bonding powder melt surrounding gas pressure, until glass for bonding powder melt solidifies.If continue the temperature raising glass for bonding powder melt, then bubble can be regenerated again in glass for bonding powder melt.
Above-mentioned vacuum glass pressure reduction method for sealing, is characterized in that: have isolating bar in vacuum glass raw sheet upper glass plate surrounding.Because the fusing in vacuum furnace of glass for bonding powder can produce a large amount of bubble, volume increases a lot, easily cause the upper surface pollution to vacuum glass raw sheet upper glass plate, have the stop of isolating bar, glass for bonding powder melt would not flow to above upper glass plate.Certainly, in order to prevent glass for bonding powder melt from flowing out lower glass plates, being also provided with in vacuum glass raw sheet lower glass plates surrounding and blocking bar.As 7 in Fig. 3 blocks bar.
Above-mentioned vacuum glass pressure reduction method for sealing, is characterized in that: isolating bar is made up of particle or fibrous material and is pressed in upper glass plate closely.The isolating bar made by particle or fibrous material; when the soldered glass powder liquid of isolating bar is bonded in upper glass plate; because the isolating bar of the flexibility be made up of particle or fibrous material can be pressed in upper glass plate closely; welding glass powder liquid between isolating bar and upper glass plate, isolating bar is easy to take off.And do isolating bar with the material as this kind of consolidation of glass bar, always portion gap is had between glass bar and upper glass plate, under the effect of capillarity, glass for bonding powder melt will infiltrate between glass bar and upper glass plate, and such glass bar and upper glass plate will be welded together closely to be difficult to separately.
Above-mentioned vacuum glass pressure reduction method for sealing, it is characterized in that: aspirating hole places Glass tubing of bleeding, bleed around Glass tubing and arrange glass for bonding powder and isolating bar, glass for bonding powder around Glass tubing of bleeding while heat fused vacuum glass raw sheet periphery welding glass powder also melts, and Glass tubing of bleeding is welded on aspirating hole.Isolating bar can limit the flowing of glass for bonding melt.
Above-mentioned vacuum glass pressure reduction method for sealing, it is characterized in that: after glass for bonding powder melt solidifies, extract heating under vacuum furnace gas out, when vacuum tightness in vacuum furnace reaches set(ting)value (such as 0.1pa), heat fused is bled Glass tubing, completes sealing aspirating hole.Heating means have Resistant heating, LASER HEATING, spot light lamp heating etc.
Compare with existing vacuum glass edge sealing technology, the present invention can obtain following technique effect, and bubble in 1, fully elimination glass for bonding powder melt, increases welding strength.2, shortening save energy heat-up time is lowered into.3, not contaminated above upper glass plate.4, isolating bar is easy to remove.Compare the present invention with common method for sealing and can shorten heat-up time more than 30 percent.This is particularly favourable to sealing-in toughened glass.Certainly to sealing-in other to temperature and heat-up time sensitivity device be also very favourable.
Accompanying drawing explanation
Fig. 1 is the vacuum glass schematic diagram of glass for bonding sealing-in.
Fig. 2 is sealing-in vacuum glass raw sheet schematic diagram of the present invention.
Fig. 3 is resistance wire sealed vacuum glass raw sheet aspirating hole schematic diagram.
Fig. 4 is spot light lamp sealed vacuum glass raw sheet aspirating hole schematic diagram.
1---upper glass plate 2---supporter 3------glass for bonding powder (or glass for bonding bar) 5---lower glass plates 6---aspirating hole 7------resistance wire 9---press strip 10---isolating bar 11`---window 12---spot light lamp 13------glass for bonding powder 15---isolating bar 16---Glass tubing 17---space, heating under vacuum furnace wall 14 of blocking bar 8, blocking layer 4
Embodiment:
Embodiment 1: as shown in Figure 2, this is a vacuum glass raw sheet with aspirating hole, and middle placement supporter 2, periphery has glass for bonding powder 4, this glass for bonding powder temperature of fusion 410 DEG C to 430 DEG C.Outside glass for bonding powder 4, block bar 7, the effect of blocking bar 7 prevents glass for bonding powder melt from flowing out lower glass plates 5.The effect of isolating bar 10 prevents glass for bonding powder melt from flowing arbitrarily in upper glass plate 1.First vacuum glass raw sheet is put into vacuum furnace, extracting vacuum heating furnace air, makes vacuum tightness in vacuum furnace reach 0.05 normal atmosphere, and the object of extracting vacuum heating furnace air eliminates convection of air to the detrimentally affect of heat-processed.Within 25 minutes, fast heating under vacuum in-furnace temperature is raised to 410 DEG C, at this moment can be observed constantly have gas to emerge in glass for bonding powder melt, be incubated 15 minutes, the object of insulation allows glass for bonding powder fully melt, and is also to get rid of more obnoxious flavour.Then open intake valve rapidly, heating unit can be installed additional at inlet mouth for overcoming the too low detrimentally affect of inlet air temperature (sharply cooling can produce too much thermal stresses in by the component of sealing-in), allowing vacuum furnace internal gas pressure reach 0.3 normal atmosphere.At this moment can see that in glass for bonding powder 4 and 14 melt, bubble rapidly disappears, glass for bonding powder melt is pushed rapidly (as shown in Figure 3) in space 17, and the larger effect of speed that in this process, vacuum furnace internal gas pressure rises is also more obvious.By the time heating is progressively stopped in glass for bonding powder melt after bubble basically eliminate.Reduce heating under vacuum in-furnace temperature, glass for bonding powder melt solidifies substantially by the time, carries out the operation of shutoff aspirating hole 6.As shown in Figure 3, resistance wire 8 is had above aspirating hole 6, after glass for bonding powder melt solidifies substantially, extract heating under vacuum furnace gas out, when vacuum furnace internal gas pressure reaches set(ting)value (such as 0.1PA), with resistance wire 8 heat fused Glass tubing 16 under controlling organization effect, until Glass tubing 16 melt-sealed aspirating hole.Then stop heating, cooling is come out of the stove.Certain shutoff aspirating hole 6 can also have other forms, such as can heat with spot light lamp 12 through heating under vacuum furnace wall window 11, also can use LASER HEATING.There are the device of cavity (as plasma panel) welding process and this similar for some.And do not have the device of the device of cavity to weld, adopt the present invention a step to complete.The method of certain shutoff aspirating hole also has other forms, and the thin slice (thin slice smears jointing material) as close with vacuum glass raw sheet with the coefficient of expansion covers on aspirating hole.
Claims (6)
1. a vacuum glass pressure reduction method for sealing, comprise cleaning cutting glass plate, bore aspirating hole, place supporter, place extraction pipe and glass for bonding powder, heat fused glass for bonding step in vacuum furnace, it is characterized in that: the gas pressure intensity in quick Raise vacuum process furnace when the fusing of glass for bonding powder produces bubble, utilize the pressure reduction in vacuum oven and between vacuum glass cavity, space between levels glass glass for bonding powder melt being pushed vacuum glass raw sheet, after raising glass for bonding powder melt surrounding gas pressure, keep also progressively reducing the temperature of glass for bonding powder melt, until glass for bonding powder melt solidifies.
2. vacuum glass pressure reduction method for sealing according to claim 1, is characterized in that: push for preventing glass for bonding powder melt to exceed in the middle of vacuum glass raw sheet and preset region arrange blocking layer inside vacuum glass raw sheet.
3. vacuum glass pressure reduction method for sealing according to claim 1, is characterized in that: have isolating bar in vacuum glass raw sheet upper glass plate surrounding.
4. vacuum glass pressure reduction method for sealing according to claim 3, is characterized in that: isolating bar is made up of particle or fibrous material and is pressed in upper glass plate closely.
5. vacuum glass pressure reduction method for sealing according to claim 1, it is characterized in that: aspirating hole places Glass tubing of bleeding, bleed around Glass tubing and arrange glass for bonding powder and isolating bar, glass for bonding powder around Glass tubing of bleeding while heat fused vacuum glass raw sheet periphery welding glass powder also melts, and Glass tubing of bleeding is welded on aspirating hole.
6. vacuum glass pressure reduction method for sealing according to claim 1, it is characterized in that: after glass for bonding powder melt solidifies, extract heating under vacuum furnace gas out, when in vacuum furnace, vacuum tightness reaches set(ting)value, heat fused is bled Glass tubing, completes sealing aspirating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110358677.9A CN103086589B (en) | 2011-10-28 | 2011-10-28 | A kind of vacuum glass pressure reduction method for sealing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110358677.9A CN103086589B (en) | 2011-10-28 | 2011-10-28 | A kind of vacuum glass pressure reduction method for sealing |
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| Publication Number | Publication Date |
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| CN103086589A CN103086589A (en) | 2013-05-08 |
| CN103086589B true CN103086589B (en) | 2015-07-29 |
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| CN201110358677.9A Expired - Fee Related CN103086589B (en) | 2011-10-28 | 2011-10-28 | A kind of vacuum glass pressure reduction method for sealing |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103723911B (en) * | 2013-11-19 | 2018-05-04 | 江苏圣帝真空玻璃科技有限公司 | A kind of method using negative pressure kettle manufacture vacuum glass |
| CN107337358B (en) * | 2017-01-26 | 2018-12-14 | 连玉琦 | A kind of vacuum glass and preparation method thereof |
| CN107487992A (en) * | 2017-06-29 | 2017-12-19 | 无锡市京锡冶金液压机电有限公司 | A kind of glass vacuum extractor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286670A (en) * | 1999-08-27 | 2001-03-07 | 青岛新立基技术应用有限公司 | Method and device for mfg. vacuum glass |
| CN1364691A (en) * | 2001-01-18 | 2002-08-21 | 北京博迩工贸公司 | High heat insulation and high sound insulation glass and its producing method |
| CN101054260A (en) * | 2007-03-28 | 2007-10-17 | 徐胜利 | Method of producing large diameter transparent quartz glass tube for semiconductor technology by continuous melting method |
| CN101190826A (en) * | 2006-11-30 | 2008-06-04 | 黄家军 | Method for sealing circumference of vacuum glass |
| KR101042724B1 (en) * | 2009-12-17 | 2011-06-20 | (주)알가 | Apparatus for edge sealing of vacuum glass panel and method for vacuum glass panel using the same |
-
2011
- 2011-10-28 CN CN201110358677.9A patent/CN103086589B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286670A (en) * | 1999-08-27 | 2001-03-07 | 青岛新立基技术应用有限公司 | Method and device for mfg. vacuum glass |
| CN1364691A (en) * | 2001-01-18 | 2002-08-21 | 北京博迩工贸公司 | High heat insulation and high sound insulation glass and its producing method |
| CN101190826A (en) * | 2006-11-30 | 2008-06-04 | 黄家军 | Method for sealing circumference of vacuum glass |
| CN101054260A (en) * | 2007-03-28 | 2007-10-17 | 徐胜利 | Method of producing large diameter transparent quartz glass tube for semiconductor technology by continuous melting method |
| KR101042724B1 (en) * | 2009-12-17 | 2011-06-20 | (주)알가 | Apparatus for edge sealing of vacuum glass panel and method for vacuum glass panel using the same |
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| CN103086589A (en) | 2013-05-08 |
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Effective date of registration: 20180126 Address after: 234000 Suzhou Province, Anhui City Yongqiao District Su vortex Road No. 188 Patentee after: SUZHOU TIANYI TOUGHENED GLASS CO.,LTD. Address before: Suzhou City, Anhui Province, 234000 Huaihai Road Yongqiao District of Suzhou City No. 31 Yongqiao district administrative service center Patentee before: Huang Jiajun |
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Effective date of registration: 20211101 Address after: 276000 north of Mazhan village, Miaoshan Town, Tancheng County, Linyi City, Shandong Province east of national highway 205 Patentee after: Shandong Kongshi Wine Co.,Ltd. Address before: 234000 No. 188, suwo Road, Yongqiao District, Suzhou City, Anhui Province Patentee before: SUZHOU TIANYI TOUGHENED GLASS CO.,LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20211028 |