CN104291580A - Microwave-heated convex dual-vacuum-layer glass with edges and openings being sealed by sealing grooves and manufacturing method - Google Patents
Microwave-heated convex dual-vacuum-layer glass with edges and openings being sealed by sealing grooves and manufacturing method Download PDFInfo
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- CN104291580A CN104291580A CN201310298488.6A CN201310298488A CN104291580A CN 104291580 A CN104291580 A CN 104291580A CN 201310298488 A CN201310298488 A CN 201310298488A CN 104291580 A CN104291580 A CN 104291580A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention discloses microwave-heated convex dual-vacuum-layer glass with edges and openings being sealed by sealing grooves. The convex dual-vacuum-layer glass comprises upper glass, lower glass and middle glass, wherein the upper glass and the lower glass are convex glass; the middle glass is planar glass; the upper glass and the middle glass are provided with an extraction opening; the peripheries of the upper surfaces of the upper glass and the middle glass and the extraction opening are provided with sealing strips; sealing grooves are formed in the peripheries of the upper surfaces of the middle glass and the lower glass and in corresponding positions of the extraction opening; the peripheries of the three pieces of glass are welded together in a microwave oven under a normal pressure through a low-temperature glass solder; the extraction opening is automatically enclosed in a vacuum furnace by using a metal solder; and two vacuum layers are formed between the upper glass and the middle glass as well as between the lower glass and the middle glass. The vacuum glass and a manufacturing method thereof are simple in process. Through adoption of the manufactured vacuum glass and toughened vacuum glass, defects in the prior art can be overcome. The air tightness of the vacuum glass can be ensured effectively, and the strength, heat insulation performance and sound insulation performance of the vacuum glass can be enhanced.
Description
Technical field
The present invention relates to glass post-processing technical field, two vacuum layer glass of convex surface particularly relating to the sealing of a kind of microwave heating sealing groove edge sealing and preparation method thereof.
Background technology
Vacuum glass is a kind of novel energy-saving glass, and vacuum glass not only can solve " breathing " problem of the double glazing of existing a large amount of use, and has that heat-and sound-insulating performance is good, wind pressure resistant strength is high, thickness is little and the advantage such as long service life.Vacuum glass is generally made up of two to three sheet glass, and form cavity between two adjacent sheet glass, the periphery of glass is provided with edge sealing structure, cavity forms vacuum layer after being pumped into vacuum.Vacuum glass is different according to the mode forming vacuum layer, can be divided into two kinds, a kind of is vacuum glass without bleeding point, and the edge sealing of this vacuum glass carries out in vacuum oven, along with completing of edge sealing, between two adjacent sheet glass the cavity self-assembling formation vacuum layer closed; Another kind is the vacuum glass having bleeding point, the edge sealing of this vacuum glass carries out in High Temperature Furnaces Heating Apparatus at ambient pressure, after edge sealing completes again by prefabricated bleeding point between glass the cavity closed vacuumize, finally terminate rear enclosed bleeding point bleeding, complete the making of vacuum glass.
A series of vacuum glass without bleeding point and preparation method thereof is disclosed in the patent of the vacuum glass that present invention applicant applied in October, 2012, but when utilizing low temperature glass solder edge sealing, because low temperature glass solder is made up of many oxide, at high temperature, under vacuum, the air of solder wettable and moisture, volatile substances in solder, in the gas that solder dissolves in process of production and solder, the decomposition etc. of partial oxide all can cause in solder and produce a large amount of bubbles, greatly weaken the properties especially resistance to air loss of solder, the feasibility of this kind of mode is caused to be greatly affected.The vacuum glass of existing mass production is all the vacuum glass having bleeding point, but there is complex manufacturing technology, extraction temperature low (bleeding not thorough), monolithic vacuumizes, cost is high, production capacity is low, can not make the shortcomings such as toughened vacuum glass.
Disclose vacuum glass of a series of microwave heating welding and preparation method thereof in the patent of the vacuum glass that present invention applicant applied in October, 2012, but easily there is the phenomenon of rarefied gas ionization sparking under vacuo in microwave heating.
Summary of the invention
Technical problem to be solved by this invention is the defect being to exist for existing bleeding point vacuum glass, two vacuum layer glass of the convex surface providing a kind of microwave heating sealing groove edge sealing to seal and preparation method thereof, the making method technique of this vacuum glass is simple, prepared vacuum glass and toughened vacuum glass can overcome deficiency of the prior art, effectively can ensure resistance to air loss and the transparency of vacuum glass, and its intensity and heat insulation, sound-proofing properties can be increased.
In order to solve the problems of the technologies described above, the invention provides the two vacuum layer glass of convex surface of a kind of microwave heating sealing groove edge sealing sealing, comprise glass, intermediate glass and lower-glass, described upper glass and lower-glass are convex glasses, described intermediate glass is flat glass, described upper glass and intermediate glass there is bleeding point, the periphery of described upper glass and intermediate glass upper surface and described bleeding point has sealed strip, there is sealing groove the periphery of described intermediate glass and lower-glass upper surface and the corresponding position of described bleeding point, the periphery of described upper glass and described lower-glass and described intermediate glass is by welding together in low temperature glass solder at ambient pressure microwave oven, described bleeding point utilizes brazing metal self-closed in vacuum oven, described upper glass and form two closed vacuum layer between described lower-glass and described intermediate glass.
In order to solve the problems of the technologies described above, the invention provides the preparation method of the two vacuum layer glass of convex surface or the two vacuum layer glass of convex surface tempering, it comprises:
The first step, according to the shape of the two vacuum layer glass of the convex surface of required making and three pieces of flat glasss of size cutting desired size, bleeding point is made in the edge punching of upper glass and intermediate glass, offer sealing groove at lower-glass and the periphery weld of intermediate glass and the corresponding position of bleeding point, and edging, chamfering, cleaning and drying treatment are carried out to three blocks of glass;
Second step, sealed strip is prepared at the periphery weld of upper glass and intermediate glass and bleeding point, sealed strip can insert in corresponding sealing groove, 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, rely on the gravity of glass self or externally applied forces to make glass form convex surface downwards, and be down to room temperature with stove, or carry out tempering process; Intermediate glass directly carries out high temperature sintering or tempering process;
3rd step, by even spread low temperature glass solder in the sealing groove of intermediate glass and lower-glass periphery, sends in microwave oven after three blocks of glass close sheets;
4th step, carries out heat temperature raising operation to described microwave oven, is warming up to more than the melt temperature of low temperature glass solder, reaches edge sealing temperature, and sealed strip is under the action of gravity of glass in embedding sealing groove; Stop heating, with stove cooling, three blocks of glass hermetic weld together by low temperature glass solder, and the fire door opening microwave oven obtains double glazing;
5th step, loads brazing metal in the bleeding point of double glazing, and sends in vacuum oven; Described 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 the sealing groove of intermediate glass and lower-glass, the sealed strip of upper glass and intermediate glass also floods 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 oven, take out the two vacuum layer glass of convex surface;
6th step, puts into seal gum, Paste Product trade mark or metal decorative sheet on seal gum in the bleeding point of the two vacuum layer glass of convex surface.
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 lower surface periphery of described upper glass and intermediate glass or the periphery of bleeding point at least respectively have a sealed strip.
Wherein, at least respectively there is a sealing groove upper surface periphery of described intermediate glass and lower-glass or the corresponding position of bleeding point.
Wherein, described sealed strip is corresponding with described sealing groove, and described sealed strip can insert in described sealing groove.
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, described upper glass, described intermediate glass and described lower-glass are simple glass or toughened glass or semi-tempered glass.
Wherein, described upper glass, described intermediate 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 sealing groove is formed by mechanical workout or laser processing, and preferred mechanical processing mode, as mechanical mill, mechanical cutting etc.
Wherein, the internal surface of the sealing groove of described bleeding point corresponding position can paint metals slurry, and metal paste contributes to combining closely of brazing metal and glass.
Wherein, described brazing metal comprises low-temperature metal solder and solder, and described material is existing commercial commodity.
Further, the fusing point of described brazing metal is lower than the fusing point of low temperature glass solder, and during brazing metal fusing, the low temperature glass solder of edge sealing remains unchanged.
Further, the shape of described brazing metal is powdery, strip, sheet or bulk, ring-type, tubulose etc.
Wherein, in the vacuum layer of the two vacuum layer glass of described convex surface not or have a small amount of upholder, the two vacuum layer glass of convex surface 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, sprayed glass ink or polymkeric substance preparation.
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, is preferably printed on two blocks of glass.
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 microwave oven once can heat the two vacuum layer glass of one to several piece convex surface.
Further, described microwave oven can have basic heating system and hot spot system, basis heating system can adopt the mode of Hot-blast Heating or resistive heating as nichrome wire, electrothermal tube, hot plate etc. or inhale ripple heating element, and hot spot system adopts microwave heating;
Further, the heating of described basis, is that burner hearth or bulk glass are heated to a lower temperature, as 300 ~ 350 DEG C, toughened glass can not be caused obviously to anneal;
Further, described local heating is that solder or glass periphery are heated to a higher temperature, as 400 ~ 450 DEG C, prevents the overall obviously annealing of toughened glass;
Wherein, described in vacuumize and bleeding point sealing, can in vacuum oven batch carry out, also can monolithic implement; Overallly can heat glass, also can local heating bleeding point.
Wherein, described vacuum oven heating, can adopt conventional heating, Infrared Heating, also can adopt induction heating, LASER HEATING, can also adopt other suitable heating unit or heater meanses.
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:
The two vacuum layer glass of convex surface of microwave heating sealing groove edge sealing of the present invention sealing on it glass and the periphery of intermediate glass and the periphery of bleeding point have sealed strip, there is sealing groove the periphery of intermediate glass and lower-glass and the corresponding position of bleeding point, make the edge sealing of the two vacuum layer glass of convex surface and seal easier, more reliable, even if sealed strip and the chimeric of sealing groove ensure that the two sealing effectiveness of vacuum layer glass when glass deformation of convex surface, there is between sealed strip and upper glass the bonding strength higher than low temperature welding glass, the chimeric of sealed strip and sealing groove increases sealing surface area between lower-glass and airtight layer thickness, the chimeric of sealed strip and sealing groove achieves the automatic-sealed of bleeding point and mass seals, the advantage of microwave heating is that rate of heating is fast, cooling rate is fast, it is several times or tens times of conventional heating, can selectivity and inside and outside while homogeneous heating solder, solder and the sintering temperature that glassy phase weight/power ratio is minimum, microwave heating can reduce again solder, so energy consumption is low, thus microwave heating have energy-conservation, save time, high-quality, efficient advantage, microwave heating can promote the diffusion of molecule, so microwave heating can reduce sintering temperature or welding temperature, is more conducive to the welding of tempering or semi-tempered glass, microwave heating can make the temperature of temperature lower than solder of bulk glass, effectively can prevent the annealing of toughened glass in edge sealing process, so can direct production tempering or half tempered vacuum glass, in addition, microwave heating is that absorbing material directly generates heat, so be particularly suitable for heating low emissivity glass, under normal pressure, under low temperature glass solder edge sealing and vacuum, brazing metal sealing solves the airtight integrity problem of solder, add the tightness of vacuum layer, improve the life-span of vacuum glass, drastically increase the productivity of vacuum glass and qualification rate, reduce the production cost of vacuum glass.
Accompanying drawing explanation
Fig. 1 is the two vacuum layer glass structural representation of convex surface of the present invention.
In figure: 1. go up glass, 2. lower-glass, 3. bleeding point, 4. low temperature glass solder, 5. sealed strip, 6. sealing groove, 7. brazing metal, 8. intermediate glass, 9. seal gum, 10. product brand.
Embodiment
Below adopt embodiment and accompanying drawing to describe embodiments of the present invention in detail, to the present invention, how utilisation technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.
Embodiment: see accompanying drawing, the two vacuum layer glass of convex surface is made up of upper convex glass 1, intermediate glass 8 and lower convex glass 2.Its making method is as follows: first according to the shape of the two vacuum layer glass of the convex surface of required making and three pieces of flat glasss of size cutting desired size, upper glass 1 and intermediate glass 8 bore a through hole respectively and forms bleeding point 3, the through hole wherein gone up on glass 1 is greater than the through hole on intermediate glass 8, sealing groove 6 is offered at intermediate glass 8 and the upper surface periphery of lower-glass 2 and the periphery of bleeding point 3 and corresponding position, and edging, chamfering are carried out to three blocks of glass, cleaning, drying treatment; Secondly sealed strip 5 is prepared at upper glass 1 and the lower surface periphery of intermediate glass 8 and the periphery of bleeding point 3 and corresponding position spraying, intermediate glass 8 is directly sent in annealing furnace and carries out tempering process, upper and lower two blocks of glass are loaded in mould, be warming up to the temperature 550 ~ 750 DEG C of Glass Transition, rely on the gravity of glass self or externally applied forces to make glass form convex surface downwards, and carry out tempering process immediately; Again fill low temperature glass solder 4 by the peripheral sealing groove 6 of intermediate glass 8 and lower-glass 2, and described three pieces of glass consistencies from top to bottom are stacked together, ensure that sealed strip 5 is corresponding with sealing groove 6, in feeding microwave oven; Microwave oven has basic heating system and hot spot system, first utilize basic heating system as electric heater for heating, basal temperature is made to rise to 300 ~ 350 DEG C, low temperature glass solder is heated to melt temperature 430 ~ 450 DEG C by the microwave heating of recycling hot spot system, and the low temperature glass solder 4 of melting by two pieces of glass cementations together; Stop heating, with stove cooling, two blocks of glass hermetic weld together by low temperature glass solder 4; Finally in bleeding point 3, load metallic zinc solder 7, send in vacuum oven, carry out vacuumizing and heating operation, be evacuated to below 0.1Pa, be warming up to the melt temperature more than 420 DEG C of metallic zinc solder 7, metallic zinc solder 7 is fused into liquid retention in sealing groove 6, sealed strip 5 also floods in a liquid, and liquid is by bleeding point self-sealing; Stop heating, with stove cooling, metallic zinc solder 7 condenses into solid, realizes airtight sealing to bleeding point, opens vacuum oven, take out the two vacuum layer glass of convex surface.Seal gum 9 is put into while hot as butyl rubber, the product brand 10 of covering above of seal gum 9, the upper surface flush of trade mark 10 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, 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. the two vacuum layer glass of the convex surface of a microwave heating sealing groove edge sealing sealing, it is characterized in that: comprise glass, intermediate glass and lower-glass, 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, described upper glass there is bleeding point, the periphery of described upper glass and intermediate glass upper surface and described bleeding point has sealed strip, there is sealing groove the periphery of described intermediate glass and lower-glass upper surface and the corresponding position of described bleeding point, the periphery of described upper glass and described lower-glass and described intermediate glass is by welding together in low temperature glass solder at ambient pressure microwave oven, described bleeding point utilizes brazing metal self-closed in vacuum oven, described brazing metal comprises low-temperature metal solder and solder, described upper glass and form two closed vacuum layer between described lower-glass and described intermediate glass.
2. the two vacuum layer glass of convex surface according to claim 1, is characterized in that having one deck or two-layer upholder in described vacuum layer.
3. the two vacuum layer glass of convex surface according to claim 1 and 2, is characterized in that described upper glass, described intermediate glass and described lower-glass are simple glass or coated glass or Low-E glass.
4. the two vacuum layer glass of the convex surface according to any one of claims 1 to 3, is characterized in that the employing of described sealed strip is printed, print or prepared by the mode of mechanically spraying cryogenic glass powder or glass ink or metal paste.
5. the two vacuum layer glass of the convex surface according to any one of claims 1 to 3, is characterized in that described sealing groove adopts mechanical workout or laser processing to form.
6. the two vacuum layer glass of the convex surface according to any one of claim 1 to 5, it is characterized in that described convex glass convex surface facing outside, convex surface bow is high is 3 ~ 10mm.
7. the preparation method of the two vacuum layer glass of the convex surface described in any one of claim 1 to 6, is characterized in that: the two vacuum layer glass of described convex surface is the two vacuum layer glass of common double vacuum layer glass or tempering, and preparation method is as follows:
The first step, according to the shape of the two vacuum layer glass of the convex surface of required making and three pieces of flat glasss of size cutting desired size, bleeding point is made in the edge punching of upper glass and intermediate glass, offer sealing groove at lower-glass and the periphery weld of intermediate glass and the corresponding position of bleeding point, and edging, chamfering, cleaning and drying treatment are carried out to three blocks of glass;
Second step, sealed strip is prepared at the periphery weld of upper glass and intermediate glass and bleeding point, sealed strip can insert in corresponding sealing groove, 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, rely on the gravity of glass self or externally applied forces to make glass form convex surface downwards, and be down to room temperature with stove, or carry out tempering process; Intermediate glass directly carries out high temperature sintering or tempering process;
3rd step, by even spread low temperature glass solder in the sealing groove of intermediate glass and lower-glass periphery, sends in microwave oven after three blocks of glass close sheets;
4th step, carries out heat temperature raising operation to described microwave oven, is warming up to more than the melt temperature of low temperature glass solder, reaches edge sealing temperature, and sealed strip is under the action of gravity of glass in embedding sealing groove; Stop heating, with stove cooling, three blocks of glass hermetic weld together by low temperature glass solder, and the fire door opening microwave oven obtains double glazing;
5th step, loads brazing metal in the bleeding point of double glazing, and sends in vacuum oven; Described 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 the sealing groove of intermediate glass and lower-glass, the sealed strip of upper glass and intermediate glass also floods 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 oven, take out the two vacuum layer glass of convex surface;
6th step, puts into seal gum, Paste Product trade mark or metal decorative sheet on seal gum in the bleeding point of the two vacuum layer glass of convex surface.
8. the preparation method of the two vacuum layer glass of convex surface according to claim 7, is characterized in that described microwave oven once can heat the two vacuum layer glass of one to several piece convex surface.
9. the preparation method of the two vacuum layer glass of convex surface according to claim 7, is characterized in that described microwave oven has basic heating system and hot spot system.
10. the preparation method of the two vacuum layer glass of convex surface according to claim 9, it is characterized in that described basic heating system adopts one or several of Hot-blast Heating, resistive heating, Infrared Heating and far-infrared heating, described hot spot system adopts microwave heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298488.6A CN104291580A (en) | 2013-07-17 | 2013-07-17 | Microwave-heated convex dual-vacuum-layer glass with edges and openings being sealed by sealing grooves and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298488.6A CN104291580A (en) | 2013-07-17 | 2013-07-17 | Microwave-heated convex dual-vacuum-layer glass with edges and openings being sealed by sealing grooves and manufacturing method |
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| CN104291580A true CN104291580A (en) | 2015-01-21 |
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| CN201310298488.6A Pending CN104291580A (en) | 2013-07-17 | 2013-07-17 | Microwave-heated convex dual-vacuum-layer glass with edges and openings being sealed by sealing grooves and manufacturing method |
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| CN102951806A (en) * | 2012-10-06 | 2013-03-06 | 戴长虹 | Convex vacuum glass welded by glass solders in microwave manner and subjected to edge sealing by strip frames, and manufacturing method of glass |
| CN102976593A (en) * | 2012-10-06 | 2013-03-20 | 戴长虹 | Convex surface vacuum glass welded by using glass welding material in microwave welding manner and provided with strip frame edge sealing and ditch groove edge sealing, and manufacturing method thereof |
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2013
- 2013-07-17 CN CN201310298488.6A patent/CN104291580A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002226235A (en) * | 2001-01-29 | 2002-08-14 | Central Glass Co Ltd | Low pressure double layered glass |
| CN1676481A (en) * | 2004-04-01 | 2005-10-05 | 唐健正 | vacuum glass edge heating method and vacuum glass made thereby |
| CN102050585A (en) * | 2009-11-02 | 2011-05-11 | 刘伟杰 | Low-cost toughened vacuum glass and manufacture method thereof |
| CN102194627A (en) * | 2010-03-09 | 2011-09-21 | 日立民用电子株式会社 | Plasma display panel and chamber for manufacturing plasma display panel |
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Application publication date: 20150121 |