CN104743940A - Metal-welded convex vacuum glass having installing holes by metal welding at sealed edge of sealing strips - Google Patents
Metal-welded convex vacuum glass having installing holes by metal welding at sealed edge of sealing strips Download PDFInfo
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- CN104743940A CN104743940A CN201310721501.4A CN201310721501A CN104743940A CN 104743940 A CN104743940 A CN 104743940A CN 201310721501 A CN201310721501 A CN 201310721501A CN 104743940 A CN104743940 A CN 104743940A
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Abstract
The invention relates to a convex vacuum glass having installing holes by metal welding at sealed edge of a sealing strip, which comprises an upper glass and a lower glass, the installing holes are provided, 1-4 installing holes are provided, at least a sealing strip is respectively provided at circumference of the upper glass and the installing hole, at least two sealing strips are provided at circumference of the lower glass, at least a sealing strip is arranged at the lower glass corresponding to the installing hole, the sealing strip of the upper glass is inserted between sealing strips of the lower glass, the upper glass and the lower glass are rapidly heated and laminated at high temperature, the circumference can be welded together by pressurizing through a metal solder in a vacuum furnace. The vacuum glass and its production method have the advantages that the process is simple and the production efficiency is high, the prepared vacuum glass can eliminate the stress of the sealed edge and can keep the toughening characteristic of the toughened glass, so that toughened vacuum glass can be massively produced, and usage life is increased.
Description
Technical field
The present invention relates to glass post-processing technical field, particularly relate to a kind of sealed strip edge sealing metal welding convex surface vacuum glass being connected to open holes and preparation method thereof.
Background technology
Vacuum glass, as a kind of novel glass of most energy-saving potential, through the research and development of more than ten years, now achieves large-scale production, and especially building field obtains good application in a lot of fields, but also there is obvious weak point, mainly production efficiency is low, production capacity is little, can not toughened vacuum glass etc. be produced, limit its applying in a wider context, the production technique that existing vacuum glass large-scale production is employing high temperature (430-480 DEG C) normal pressure lower sealing edge, low temperature (180-300 DEG C) vacuumizes rear sealing, owing to needing insulation for some time at edge sealing temperature, being generally 15-20min, fully melt flowing bonding to make solder and then obtain higher sealing strength and resistance to air loss, so toughened glass will be annealed in edge sealing process under high temperature and long duration of action, although the initial stress of toughened glass can be done very highly also can only obtain half tempered vacuum glass, toughened vacuum glass another major cause not fertile is the planeness problem of glass, glass can produce the distortion of 0.1-0.3% in toughening process, its deformation quantity is far longer than the thickness of vacuum glass vacuum layer, if there is planeness not high enough (particularly toughened glass) in process of production in vacuum glass, solder thickness is inconsistent, heat the factor such as uneven in edge sealing process and will cause edge sealing sealing-off, resistance to air loss is bad and can not get vacuum glass, lower-glass also can be caused to can not get upholder fully and uniformly support, vacuumizing final vacuum glass will make the local of glass produce very large stress under the effect of the every square meter of air about 10 tons of pressure, these stress the edge of glass show more obvious, and the edge position that to be glass the weakest, under the long term of these edge sealing stress, stressed larger vacuum glass will break and cause damaging, and not only affects the work-ing life of vacuum glass, and may bring safety problem, no matter size only has a bleeding point to existing vacuum glass, due to the thickness of vacuum layer and the internal diameter of bleeding point minimum, so pumping resistance is very big, cause inside and outside differential pressure very large, not only need the vacuum pump of very condition of high vacuum degree, and pumpdown time is very long, production efficiency is very low, the vacuum glass for bulk is even more serious, vacuum glass can substitute existing glass applications in requiring heat insulation and place that is sound insulation, and some installation sites need punching on glass to install, and existing vacuum glass can not meet this requirement.
Summary of the invention
Technical problem to be solved by this invention is the defect being to exist for existing vacuum glass, a kind of sealed strip edge sealing metal welding convex surface vacuum glass being connected to open holes and preparation method thereof is provided, this vacuum glass and preparation method thereof technique is simple, production efficiency is high, prepared toughened vacuum glass not only can reduce or eliminate edge sealing stress but also can keep the tempering characteristic of toughened glass, can toughened vacuum glass be produced in enormous quantities, and its work-ing life can be increased.
In order to solve the problems of the technologies described above, the invention provides the convex surface vacuum glass that a kind of sealed strip edge sealing metal welding is connected to open holes, comprise glass and lower-glass, it is characterized in that there is open holes, described open holes has 1-4, described upper glass and described lower-glass are convex glasses, described upper glass and described lower-glass are simple glass or toughened glass or semi-tempered glass, the periphery of described upper glass and described open holes at least respectively has a sealed strip, the periphery of described lower-glass and described open holes at least respectively has two sealed strips, the sealed strip of described upper glass inserts between the sealed strip of described lower-glass, the periphery that described upper glass and described lower-glass at high temperature close sheet, its periphery and open holes after rapid heating adds pressure by brazing metal and welds together in vacuum oven, by thermal compression welding, eliminate the variable anamorphic of glass, glass is shaped in using state, reduce and eliminate edge sealing stress, the vacuum layer that between described upper glass and described lower-glass, formation one is closed.
In order to solve the problems of the technologies described above, the invention provides the preparation method of convex surface vacuum glass or convex surface toughened vacuum glass, comprising:
The first step, according to the shape of the convex surface vacuum glass of required making and two pieces of flat glasss up and down of size cutting desired size, in the edge punching fabrication and installation hole of upper lower-glass, and carries out edging, chamfering, cleaning and drying treatment to upper and lower two blocks of glass;
Second step, the sealed strip prepare sealed strip in the periphery of upper and lower glass and the periphery of open holes and corresponding position, contacting at brazing metal and the surface of glass make layer of metal slurry, the sealed strip of upper glass can insert in the sealed strip of the correspondence of lower-glass, upper lower-glass after process is loaded hot bending die, is placed in bending furnace or annealing furnace, be warming up to the temperature 550 ~ 750 DEG C of Glass Transition, the gravity of glass self or externally applied forces is relied on to make glass form convex surface downwards, and be down to room temperature with stove, or directly carry out tempering process;
3rd step, by even spread brazing metal between the sealed strip of lower-glass periphery, upper and lower glass is sent in atmosphere heating furnace respectively, adopt the mode of rapid heating, make upper and lower glass in 0.5-30min, be heated to 100-400 DEG C but lower than the temperature of fusion 5-50 DEG C of solder, upper and lower glass at high temperature carried out conjunction sheet;
4th step, glass is sent in the pre-vacuum chamber of vacuum oven after closing sheet and is carried out forvacuum, the temperature of pre-vacuum chamber and the temperature close of glass, but is not less than the temperature of glass, and pressure is 1-100Pa, and the time is 0.5-5min; Glass after forvacuum is sent in the vacuum chamber of vacuum oven, the temperature of vacuum chamber and the temperature of solder close, but lower than the temperature of solder; The pressure of vacuum chamber is 0.01-0.1Pa, and the time is 0.5-5min; Then opening infrared heater makes the temperature of solder be increased to rapidly more than the temperature of fusion of solder; After solder fusing, glass is sent in the pressurized compartment of vacuum oven, and under solder fusing state, pressurize to upper and lower glass, glass evenly and is fully contacted with solder or upholder, applied pressure is about the pressure of air until solder solidification; The temperature of pressurized compartment is lower than the temperature of fusion 20-100 DEG C of solder, and the pressure of pressurized compartment is 0.01-0.1Pa, and the time is 0.5-5min; After solder tentatively solidifies, enter in the cooling room of vacuum oven, pressurization can also be continued, until solder solidifies completely to glass in cooling room; The temperature of cooling room is lower than the temperature of fusion 100-200 DEG C of solder, and the pressure of cooling room is 10-1000Pa, and the time is 0.5-5min;
5th step, glass hermetic welds together by the solder of solidification, obtains vacuum glass; Vacuum glass enters normal pressure cool furnace from cooling room and continues cooling;
6th step, puts into protective casing and seal gum in the open holes of vacuum glass, Paste Product trade mark or metal decorative sheet on protective casing and seal gum.
Wherein, described convex glass convex surface facing outside, convex surface bow is highly not less than 0.1mm, is preferably 1 ~ 200mm, more preferably 3 ~ 10mm.
Wherein, the periphery of described upper glass or the periphery of open holes are at least containing a sealed strip.
Wherein, the corresponding position of the open holes of the periphery of described lower-glass at least containing two sealed strips, described lower-glass is at least containing a sealed strip.
Wherein, the sealed strip of described upper glass is corresponding with the sealed strip of described lower-glass, between the sealed strip that the sealed strip of described upper glass can insert described lower-glass or within.
Wherein, described upper glass and described lower-glass are simple glass or toughened glass or semi-tempered glass.
Wherein, described upper glass and described lower-glass are simple glass or coated glass or Low-E glass.
Wherein, described sealed strip adopts printing, printing or mechanically spraying cryogenic glass powder or the mode such as glass ink or metal paste to prepare.
Wherein, described metal paste is commercially available metal paste or electric slurry, as silver slurry etc.
Wherein, described brazing metal is low-temperature metal solder and solder, and the temperature of fusion of described brazing metal and solder is 150-480 DEG C, and be preferably 300-450 DEG C, described material is existing commercial commodity, as metallic tin and alloy etc. thereof.
Further, the shape of described brazing metal is powdery, strip, sheet or bulk, ring-type, tubulose or paste etc. or the liquid for fusing.
Wherein, have metal paste coating between described brazing metal and described glass or described sealed strip, metal paste contributes to combining closely of brazing metal and glass.
Wherein, in the vacuum layer of described convex surface vacuum glass not or have a small amount of upholder, convex surface vacuum glass mainly relies on convex shape to resist barometric point.
Wherein, above support is made up of metal, pottery, glass or high molecular polymer, matrix material, preferably adopts printing, some glue or sprayed glass ink or polymkeric substance preparation; Above support can be prepared before glass tempering, also can prepare after glass tempering.
Wherein, above support has one deck or two-layer; Above support is printed on one block of glass, or is printed on two blocks of glass, and conventional vacuum glass is preferably printed on one block of glass, and toughened vacuum glass is preferably printed on two blocks of glass; Above support can make before glass tempering, also can make after glass tempering.
Wherein, above support is column, or is strip; When upholder is printed on one block of glass, preferably cylindric; When upholder is printed on two blocks of glass simultaneously, be preferably strip, and vertical pile.
Wherein, described process furnace is the atmosphere heating furnace having neutrality or reducing gas protection, and described neutrality or reducing gas are argon gas, nitrogen or hydrogen etc.; Described process furnace can be batch kiln or continuous furnace, preferred continuous furnace.
Wherein, described process furnace can have one to several heating chamber, a preferred 3-5 heating chamber, as described in upper glass, lower-glass rapid heating and close the operation such as sheet and preferably carry out in respective heating chamber, with improve production efficiency and product quality; The heating system of described heating chamber can adopt the mode of Hot-blast Heating or resistive heating (Infrared Heating) as nichrome wire, electrothermal tube, hot plate etc., can also adopt microwave heating; Preferred employing hot blast and infrared rays combined heat, the preferred near infrared ray of infrared rays and middle infrared (Mid-IR), selectivity heating of metal solder, makes the temperature of temperature lower than brazing metal of glass, keeps the tempering characteristic of toughened glass further; When heating Low-e glass, also can adopt FAR INFRARED HEATING, due to the existence of low-radiation film, the temperature of glass can be made to be starkly lower than the temperature of solder;
Further, the rapid heating of described upper glass, lower-glass, in the short period of time, as 0.5-30min, preferred 0.5-10min, more preferably 0.5-3min, described upper and lower glass and brazing metal are heated to the temperature of a setting, as 100-500 DEG C, be preferably 180-480 DEG C, thus toughened glass can not be caused obviously to anneal;
Further, described conjunction sheet heating chamber is by described upper glass by devices such as high-temperature vacuum sucker, mechanical manipulators, relies on measurement, location dispatch control system at high temperature, as 180-480 DEG C, is combined with described lower-glass;
Wherein, described vacuum oven is continuous vacuum stove, comprises the unit such as pre-vacuum chamber, vacuum chamber, pressurized compartment and cooling room; The conveying of glass preferably adopts the roller-way structure being similar to annealing furnace.
Wherein, described vacuum oven pressurized compartment, be that described glass closes after sheet and carries out pressurizeing and cooling in pressurized compartment, pressurization object is the variable anamorphic making the described upper and lower glass of elimination, makes described upper and lower glass obtain fully and uniformly supporting of solder or upholder; The pressure of described pressurization is about the pressure of air, is preferably 0.1MPa; Described pressurization can adopt the pressuring method and corresponding device that mechanical pressurization, air pressure, hydraulic pressure etc. are conventional; The time remaining of described pressurization is to solder solidification sizing, and namely described upper and lower glass sizing is in using state, thus eliminates edge sealing stress.
Wherein, the structure of described open holes can adopt other to have the mode of hydraulic seal structure, as being similar to the sealed structure of water seal floor drain etc., also can adopt the structure of applicant any one open holes published.
Wherein, described open holes has one to several, and be preferably 1-4, pieces of glass can arrange one, and structural glass can arrange 4, respectively arranges one at each edge.
Wherein, described vacuum oven heating, can adopt infrared heating, also can adopt other suitable heating unit or heater meanses.
Further, described heating, can heat bulk glass, also can local heating solder.
Wherein, the coating of described solder can adopt point gum machine to carry out.
Wherein, described seal gum preferably has secret sealing, more preferably hot melt adhesive, hot-setting adhesive or two component sealing gum; Described protective casing is made up of plastics or elastomeric material.
Beneficial effect of the present invention:
The present invention uses for reference the rapid heating principle of annealing furnace, respectively rapid heating is carried out to the monolithic glass of vacuum glass, not only drastically increase production efficiency, compared with reheating with after conjunction sheet, its heating rate can improve tens times, and can by the progressively intensification of multi-work-station, make within the time shorten of toughened glass under the high temperature of welding temperature to several minutes even a minute, effectively maintain the tempering characteristic of toughened glass, solve the difficult problem that existing toughened glass is annealed in edge sealing process, also existing vacuum glass production process is solved long, production efficiency is low, the problem that production capacity is little, especially toughened vacuum glass is extensive to achieve vacuum glass, the production of low cost, solder is heat temperature raising when open, can make the thoroughly volatilization such as gas, moisture, organism contained in solder, prevent solder because affecting its resistance to air loss containing pore, it also avoid organism and be deposited in vacuum chamber the pollution that vacuum glass produces, the present invention uses for reference the production principle of doubling glass, pressurizes, effectively can eliminate the variable anamorphic of lower-glass before solder solidification to the glass after high temperature conjunction sheet, makes lower-glass and solder sizing in using state, avoids producing stress concentration, under the effect of the pressure, solder fully contacts with glass, bond, and the sealing of edge is more evenly reliable, can obtain higher sealing strength and resistance to air loss, applied pressure be a normal atmosphere, applying time until solder solidifies completely, shape when making lower-glass be fixed to work, thus reduce even to eliminate edge sealing stress, avoid vacuum glass breaking and the self-destruction of toughened vacuum glass in use, thus can extend the work-ing life of vacuum glass, prevent the generation of security incident, thermal compression welding, can also reduce welding temperature, shorten weld interval, keep the tempering characteristic of toughened glass further, the sealing of the open holes of vacuum glass of the present invention and edge sealing carry out simultaneously, and not only production technique is simple, and intensity is higher, the quantity of open holes is not limit, and can have one to several, not only convenient installation but also use safety, its size of open holes of the present invention relatively can be very large, and inside can increase protective casing, thus is conducive to the quality and performance improving vacuum glass, extends its work-ing life, the present invention utilizes brazing metal to replace glass solder to carry out edge sealing, compared with glass solder, brazing metal has lower temperature of fusion, more high thermal conductivity, so its sealing temperature is lower, sealing time is shorter, thus can keep the tempering characteristic of toughened glass better, brazing metal has good toughness and ductility, can not produce stress concentration, so can eliminate edge sealing stress completely.
Accompanying drawing explanation
Fig. 1 is the convex surface vacuum glass structural representation having upholder of the present invention.
In figure: 1. go up glass, 2. lower-glass, 3. open holes, the 4. sealed strip of lower-glass, 5. go up the sealed strip of glass, 6. silver slurry, 7. brazing metal, 8. upholder, 9. protective casing, 10. seal gum, 11. product brands.
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 Fig. 1, convex surface vacuum glass is made up of upper glass 1 and lower-glass 2, and the periphery of two blocks of glass is welded together by brazing metal 7, and centre is vacuum layer.Its making method is as follows: first according to the shape of made vacuum glass and two pieces of flat glasss of size cutting desired size, boring a through hole at the edge of upper glass 1 and lower-glass 2 is open holes 3, edging, chamfering and cleaning, drying are carried out to upper lower-glass, mechanical spraying technology is utilized to prepare sealed strip 5 and 4 at the periphery weld of upper lower-glass and the periphery of open holes 3 and corresponding position, and on upper lower-glass, prepare upholder 8 with point gum machine, the surface of the sealed strip contacted with solder and glass makes silver slurry layer 6; Secondly upper and lower two blocks of glass are loaded mould, are placed in bending furnace, be warming up to the temperature 550-750 DEG C of Glass Transition, rely on the gravity of glass self to make glass form convex surface downwards, be down to room temperature with stove, and by the method for plane lapping, upholder 8 be machined to same level height; Again by even spread brazing metal 7 between two sealed strips 4 of lower-glass 2 periphery, and two blocks of glass are sent in atmosphere heating furnace respectively; Process furnace can adopt the structure and heating system that are similar to annealing furnace, and heating system can adopt Hot-blast Heating, Infrared Heating or both combined heats; Process furnace has 3 heating chambers, in order to reach energy-conservation, timesaving effect, each heating chamber can also comprise one to several station, the temperature of each station is different and gradually change, the temperature in heating chamber is made to form gradient, glass can be controlled in 0.2-2min in the residence time of each station, and namely glass can be controlled within one minute in the time length of top temperature; Wherein first, second heating chamber heats upper glass 1 and lower-glass 2 respectively, within 1-5 minute, glass and solder is heated to design temperature; Then lower-glass 2 is transported to the 3rd heating chamber and namely closes sheet heating chamber, in conjunction sheet heating chamber, utilize mechanical manipulator to be stacked together by two pieces of glass consistencies from top to bottom, the temperature of this heating chamber lower than the temperature of fusion of solder, as remained on 300-400 DEG C; Finally send in continuous vacuum stove, vacuum oven comprises several working cells such as pre-vacuum chamber, vacuum chamber, pressurized compartment and cooling room, and each unit is control temperature, pressure and other parameters respectively, completes vacuumizing and sealing of vacuum glass; After cooling room cooling, vacuum glass just can enter in the cool furnace under normal pressure and continue cooling.Seal gum 10 is put into while hot as butyl rubber and protective casing 9, the product brand 11 of covering above of seal gum 10, the upper surface flush of trade mark 11 and upper glass 1 in open holes.
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, based on the amendment of foregoing, can 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 sealed strip edge sealing metal welding is connected to the convex surface vacuum glass of open holes, comprise glass and lower-glass, it is characterized in that there is open holes, described open holes has 1-4, described upper glass and described lower-glass are convex glasses, described upper glass and described lower-glass are simple glass or toughened glass or semi-tempered glass, the periphery of described upper glass and described open holes at least respectively has a sealed strip, the periphery of described lower-glass and described open holes at least respectively has two sealed strips, and the sealed strip of described upper glass inserts between the sealed strip of described lower-glass; The periphery that described upper glass and described lower-glass at high temperature close sheet, its periphery and open holes after rapid heating adds pressure by brazing metal and welds together in vacuum oven; By thermal compression welding, eliminate the variable anamorphic of glass, glass is shaped in using state, reduce and eliminate edge sealing stress; The vacuum layer that between described upper glass and described lower-glass, formation one is closed.
2. convex surface vacuum glass according to claim 1, is characterized in that having one deck or two-layer upholder in described vacuum layer.
3. convex surface vacuum glass according to claim 1 and 2, is characterized in that described upper glass and described lower-glass are simple glass or coated glass or Low-E glass.
4. the convex surface vacuum glass according to any one of claims 1 to 3, is characterized in that described sealed strip or upholder employing are printed, print or prepared by the mode of mechanically spraying cryogenic glass powder or glass ink or metal paste.
5. the convex surface vacuum glass according to any one of Claims 1-4, is characterized in that described process furnace is the atmosphere heating furnace having neutrality or reducing gas protection.
6. the convex surface vacuum glass according to any one of claim 1 to 5, it is characterized in that described convex glass convex surface facing outside, convex surface bow high be 3 ~ 10mm.
7. the preparation method of the convex surface vacuum glass described in any one of claim 1 to 6, is characterized in that: described convex surface vacuum glass is conventional vacuum glass or toughened vacuum glass, and preparation method is as follows:
The first step, according to the shape of the convex surface vacuum glass of required making and two pieces of flat glasss up and down of size cutting desired size, in the edge punching fabrication and installation hole of upper lower-glass, and carries out edging, chamfering, cleaning and drying treatment to upper and lower two blocks of glass;
Second step, the sealed strip prepare sealed strip in the periphery of upper and lower glass and the periphery of open holes and corresponding position, contacting at brazing metal and the surface of glass make layer of metal slurry, the sealed strip of upper glass can insert in the sealed strip of the correspondence of lower-glass, upper lower-glass after process is loaded hot bending die, is placed in bending furnace or annealing furnace, be warming up to the temperature 550 ~ 750 DEG C of Glass Transition, the gravity of glass self or externally applied forces is relied on to make glass form convex surface downwards, and be down to room temperature with stove, or directly carry out tempering process;
3rd step, by even spread brazing metal between the sealed strip of lower-glass periphery, upper and lower glass is sent in atmosphere heating furnace respectively, adopt the mode of rapid heating, make upper and lower glass in 0.5-30min, be heated to 100-400 DEG C but lower than the temperature of fusion 5-50 DEG C of solder, upper and lower glass at high temperature carried out conjunction sheet;
4th step, glass is sent in the pre-vacuum chamber of vacuum oven after closing sheet and is carried out forvacuum, the temperature of pre-vacuum chamber and the temperature close of glass, but is not less than the temperature of glass, and pressure is 1-100Pa, and the time is 0.5-5min; Glass after forvacuum is sent in the vacuum chamber of vacuum oven, the temperature of vacuum chamber and the temperature of solder close, but lower than the temperature of solder; The pressure of vacuum chamber is 0.01-0.1Pa, and the time is 0.5-5min; Then opening infrared heater makes the temperature of solder be increased to rapidly more than the temperature of fusion of solder; After solder fusing, glass is sent in the pressurized compartment of vacuum oven, and under solder fusing state, pressurize to upper and lower glass, glass evenly and is fully contacted with solder or upholder, applied pressure is about the pressure of air until solder solidification; The temperature of pressurized compartment is lower than the temperature of fusion 20-100 DEG C of solder, and the pressure of pressurized compartment is 0.01-0.1Pa, and the time is 0.5-5min; After solder tentatively solidifies, enter in the cooling room of vacuum oven, pressurization can also be continued, until solder solidifies completely to glass in cooling room; The temperature of cooling room is lower than the temperature of fusion 100-200 DEG C of solder, and the pressure of cooling room is 10-1000Pa, and the time is 0.5-5min;
5th step, glass hermetic welds together by the solder of solidification, obtains vacuum glass; Vacuum glass enters normal pressure cool furnace from cooling room and continues cooling;
6th step, puts into protective casing and seal gum in the open holes of vacuum glass, Paste Product trade mark or metal decorative sheet on protective casing and seal gum.
8. the preparation method of convex surface vacuum glass according to claim 7, is characterized in that described process furnace or vacuum oven can be batch furnace or continuous furnace, preferred continuous furnace.
9. the preparation method of convex surface vacuum glass according to claim 7, is characterized in that the time of described process furnace heating glass is 0.5-3min.
10. the preparation method of convex surface vacuum glass according to claim 7, it is characterized in that the pressure of described pressurization is 0.1MPa, the time length of described pressurization is till solder solidifies completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721501.4A CN104743940A (en) | 2013-12-25 | 2013-12-25 | Metal-welded convex vacuum glass having installing holes by metal welding at sealed edge of sealing strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721501.4A CN104743940A (en) | 2013-12-25 | 2013-12-25 | Metal-welded convex vacuum glass having installing holes by metal welding at sealed edge of sealing strips |
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| CN104743940A true CN104743940A (en) | 2015-07-01 |
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| CN201310721501.4A Withdrawn CN104743940A (en) | 2013-12-25 | 2013-12-25 | Metal-welded convex vacuum glass having installing holes by metal welding at sealed edge of sealing strips |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241473A (en) * | 2010-05-12 | 2011-11-16 | 王世忠 | Production method and equipment of toughened vacuum glass |
| CN102863158A (en) * | 2011-07-05 | 2013-01-09 | 洛阳兰迪玻璃机器股份有限公司 | Vacuum glass sealing method and device |
| CN103420626A (en) * | 2013-07-17 | 2013-12-04 | 戴长虹 | Vacuum convex glass provided with sealing grooves and mounting hole through metal welding |
-
2013
- 2013-12-25 CN CN201310721501.4A patent/CN104743940A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241473A (en) * | 2010-05-12 | 2011-11-16 | 王世忠 | Production method and equipment of toughened vacuum glass |
| CN102863158A (en) * | 2011-07-05 | 2013-01-09 | 洛阳兰迪玻璃机器股份有限公司 | Vacuum glass sealing method and device |
| CN103420626A (en) * | 2013-07-17 | 2013-12-04 | 戴长虹 | Vacuum convex glass provided with sealing grooves and mounting hole through metal welding |
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Application publication date: 20150701 |
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| WW01 | Invention patent application withdrawn after publication |