CN104773962A - Vacuum glass sealing and connecting structure, semi-finished product of vacuum glass sealing and connecting structure, and sealing and connecting method of vacuum glass sealing and connecting structure - Google Patents
Vacuum glass sealing and connecting structure, semi-finished product of vacuum glass sealing and connecting structure, and sealing and connecting method of vacuum glass sealing and connecting structure Download PDFInfo
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Abstract
The invention provides a vacuum glass sealing and connecting structure, a semi-finished product of the vacuum glass sealing and connecting structure, and a sealing and connecting method of the vacuum glass sealing and connecting structure. According to the sealing and connecting method, one surface of a metal strap material is coated with a glass powder slurry, and the surface is bonded with the peripheral surface of each glass plate; connection as a whole body is realized via heating melting; and the outsides of the peripheral surfaces of the metal strap material on the adjacent glass plates are connected as a whole body via connection and airtight welding. According to the vacuum glass sealing and connecting structure, the periphery surface of each glass plate is connected with the metal strap material via glass powder slurry heating melting, so that the outsides of the peripheral surfaces of the metal strap material on the adjacent glass plates are connected and are subjected to airtight welding. According to the vacuum glass sealing and connecting structure, infiltrating characteristics of the glass powder slurry and bonding performance under fusion states are used fully; easy welding characteristics of metal material is used fully; and flow line production of vacuum glass with tempered glass and semi-tempered glass is realized.
Description
Technical field
The present invention relates to a kind of vacuum glass sealing structure and method.
Background technology
The vacuum glass be formed by stacking by two panels and even more glass sheets, with its excellent sound insulation, the concern that heat insulation, heat-insulating property receives people, also becomes the direction of many enterprises and individuals research.
Introduce in current patented technology, the method for sealing that may adopt in the process of making vacuum glass mainly contains:
(1) a kind of vacuum glass sealing method as shown in Figure 1, between two glass sheets, adopt glass powder with low melting point slurry to melt sealing, sealing temperature, generally between 350 DEG C ~ 450 DEG C, makes the glass powder slurry of low melting point melt thus the seal completed between sheet glass and sheet glass by flame or electrically heated mode.The glass powder with low melting point slurry that this technique adopts is generally leaded or lead-free glass powder composition, and lead composition wherein has harm to environment and human body, has progressed into superseded state.This sealing-in mode is owing to having infiltration and the melting process of glass powder slurry, and sealing-in sealing is reliable; But its processing units and complex process, and due to encapsulation two glass sheets enter heated condition simultaneously, easily cause in the sheet glass after encapsulation and there is encapsulation stress, it is unfavorable to use the long-term stability of finished product, in the Vacuum Package of toughened glass or semi-tempered glass plate, still have many technological difficulties to need to overcome, representative patents such as the application number of current this vacuum glass sealing method is the patent of invention of CN94192667.2.
(2) a kind of vacuum glass sealing method as shown in Figure 2, adopt various resin material and make the seal, sealing materials that the film condensation material of laminated glass is used as between sheet glass, its Technology is similar to the manufacture craft of laminated glass, although this processing method can realize the sealing-in between sheet glass, but this resinoid, gas permeability and the outgassing rate of itself of film class material are all far longer than glass, and although the vacuum chamber surface-area of vacuum glass is very large, volume is but very little, a certain amount of outgas will make the vacuum tightness in vacuum chamber extremely degenerate, even lose vacuum, so the vacuum glass product that this sealing-in mode makes, the stability of life-time service will be a problem, and representative patents such as the application number of current this vacuum glass sealing method is the patent of invention of CN02205234.8.
(3) a kind of vacuum glass sealing method as shown in Figure 3, adopt ultrasonic welding technique, screen printing technique and hot-spraying techniques by metal paste or tinsel directly and sheet glass to sinter and/or integrally welded, because glass and metal belong to the complete material of different nature of two classes, the surface property of glass also determine how can by metal paste or tinsel directly and sheet glass to sinter and/or integrally welded, and have good bulk strength and resistance to air loss, a lot of research work is also had to do, representative patents such as the application number of current this vacuum glass sealing method is the patent of invention of CN201110101892.0.
(4) a kind of vacuum glass sealing method as shown in Figure 4, adopt the brazing metal of low melting point, directly make by heating the rear cooling of brazing metal fusing being placed on two glass sheets sealed edge places at a lower temperature, two glass sheets are sealed formation vacuum glass, this and the practical problems faced in method described in Article 3 above have similarity, and representative patents such as the application number of current this vacuum glass sealing method is the patent of invention of CN201210075607.7.
Summary of the invention
For the practical problems that the method for sealing adopted in the process of making vacuum glass of current various patented technology introduction faces, the object of the present invention is to provide a kind of vacuum glass sealing structure and work in-process and method for sealing thereof, described method for sealing is simple and feasible, and described sealing structure sealing-in is firm, resistance to air loss good.
For achieving the above object, the technical solution used in the present invention comprises:
A kind of work in-process of vacuum glass sealing structure, it is characterized in that: comprise sheet glass and welding metal belting, described sheet glass has two plate faces and is connected to the circumferential surface between described two plate faces, and described circumferential surface connects described metal belting by the melting of glass powder slurry.
For achieving the above object, the technical solution used in the present invention also comprises:
A kind of vacuum glass sealing structure, described vacuum glass has at least two-layer sheet glass be arranged in parallel, it is characterized in that: the circumferential surface of every one deck sheet glass is connected with metal belting by glass powder slurry heating and melting, the metal belting on the sheet glass of adjacent layers in the outer side engagement of the circumferential surface of the sheet glass of described adjacent layers and airtight welding be integrated.
Wherein: the joint welding of the metal belting connected is to form described airtight welding.
Wherein: described metal belting has the planar body perpendicular to described sheet glass, the outer side of the planar body of the metal belting connected and same metallic seal welding are to form described airtight welding.
Wherein: described metal belting has the planar body perpendicular to described sheet glass, the planar body of described metal belting is provided with one or two bending edges, and the end of described bending edges presses close to the circumferential surface of described sheet glass.
Wherein: the circumferential surface of described sheet glass is provided with hypotenuse or recessed.
Wherein: towards the side of adjacent sheets of glass on described hypotenuse or the recessed circumferential surface being formed in described sheet glass.
Wherein: the concave surface in opposite directions of the bending edges of the metal belting connected, is coated with low melting point brazing metal in described indent, the bending edges of the metal belting connected described in forms described airtight welding by described low melting point brazing metal.
Wherein: the indent on the surface in opposite directions of the planar body of described metal belting and described metal seal band, be coated with low melting point brazing metal in described indent, the planar body of described metal belting and described metal seal band form described airtight welding by described low melting point brazing metal.
For achieving the above object, the technical solution used in the present invention also comprises:
A kind of vacuum glass sealing method, described vacuum glass has at least two-layer sheet glass be arranged in parallel, it is characterized in that, described method for sealing comprises the steps:
Step a: at the one side coated glass powder slurry of metal belting, or, coated glass powder slurry on the circumferential surface of sheet glass, the seasoning of described glass powder slurry or oven dry;
Step b: metal belting of fitting on the circumferential surface of every one deck sheet glass, and make described glass powder paste material level between described metal belting and the circumferential surface of sheet glass, make the melting of glass powder slurry by heating, the circumferential surface of described sheet glass and metal belting are connected as one by condensed glass powder slurry;
Step c: by superimposed for the sheet glass of adjacent layers, makes the metal belting on the sheet glass of adjacent layers in the outer side engagement of the circumferential surface of the sheet glass of described adjacent layers and airtight welding is integrated;
Wherein, step c carries out after step b, or step c and step b carries out simultaneously.
Wherein, in step c, the joint welding of the metal belting connected is to form described airtight welding.
Wherein, in step c, described metal belting has the planar body perpendicular to described sheet glass, and the outer side of the planar body of the metal belting connected and same metallic seal welding are to form described airtight welding.
Wherein, described metal belting has the planar body perpendicular to described sheet glass, and the planar body of described metal belting is provided with one or two bending edges, and the end of described bending edges presses close to the circumferential surface of described sheet glass.
Wherein, in step b, the circumferential surface of described sheet glass is previously provided with hypotenuse or recessed.
Wherein, on described hypotenuse or the recessed circumferential surface being formed in described sheet glass towards the side of adjacent sheets of glass.
Wherein, in step c, the concave surface in opposite directions of the bending edges of the metal belting connected, is coated with low melting point brazing metal in described indent, described in the bending edges of metal belting that connects form described airtight welding by described low melting point brazing metal.
Wherein, in step c, the indent on the surface in opposite directions of the planar body of described metal belting and described metal seal band, be coated with low melting point brazing metal in described indent, the planar body of described metal belting and described metal seal band form described airtight welding by described low melting point brazing metal.
Wherein, in step a, glass powder slurry coated on metal belting is high temp glass powder slurry; In step b, described sheet glass is the simple glass plate not carrying out tempering or half tempered process, then, while carrying out step b, also carry out tempering or half tempered process to described sheet glass.
Wherein, in step a, glass powder slurry coated on metal belting is cryogenic glass powder slurry; In step b, described sheet glass is the sheet glass carrying out tempering or half tempered process, then, in step b, first monolithic glass slab integral is warmed up to a basal temperature, then the circumferential surface position of local heating sheet glass, makes metal belting realize integrated connection with the circumferential surface of sheet glass by the heating and melting state of glass powder slurry.
Wherein, described basal temperature is 200 DEG C ~ 300 DEG C, and the circumferential surface position of described local heating sheet glass will make its temperature reach 350 DEG C ~ 425 DEG C.
Compared with prior art, the beneficial effect that the present invention has is: both taken full advantage of the cementability under the imbibition characteristic of glass powder slurry and molten state, take full advantage of again the feature of the weldability of metallic substance, easily welding, make employing toughened glass and semi-tempered glass carry out streamlined production vacuum glass and become practicable, the vacuum glass simultaneously also making employing present method produce, its product inner quality obtains sound assurance, ensure that the safe handling of vacuum glass.
The inventive method not only has that sealing-in position is connected firmly, air-tightness is good, and it is simple, metal belting wherein can be according to actual needs, adopt different shape Virtual production, the coating of glass powder slurry also can adopt specific equipment to realize, and the dried position be coated with between the metal belting of glass powder slurry and sheet glass is put and also can be realized mechanized, is suitable for the suitability for industrialized production organizing vacuum glass, and production process controls easily, constant product quality is good.
Accompanying drawing explanation
Fig. 1 has commercialization to adopt the vacuum glass structural representation that directly welds of cryogenic glass powder at present;
Fig. 2 adopts various resin material and makes the film condensation material of laminated glass to be used as the vacuum glass structural representation that the seal, sealing materials between sheet glass connects two sheet glass;
Fig. 3 for adopt ultrasonic welding technique, screen printing technique and hot-spraying techniques by metal paste or tinsel directly and sheet glass to sinter and/or integrally welded, then the vacuum glass structural representation welded between it, will be carried out by solder bonding metal technology;
Fig. 4 is the brazing metal adopting low melting point, and two glass sheets are sealed the vacuum glass structural representation forming vacuum glass by cooling after directly the brazing metal being placed on two glass sheets sealed edge places being melted by heating at a lower temperature;
Fig. 5 a, Fig. 5 b will be coated in the glass powder slurry melting on metal belting by the mode of heating and melting on monolithic glass plate surrounding end face, realize the integrated semi-finished product structure schematic diagram connected of sheet glass surrounding end face and metal belting;
Fig. 5 c is vacuum glass embodiment 1 structural representation of the present invention;
Fig. 6 is vacuum glass embodiment 2 structural representation of the present invention;
Fig. 7 a, Fig. 7 b, Fig. 7 c are vacuum glass embodiment 3 work in-process of the present invention and finished product structure schematic diagram;
Fig. 8 is vacuum glass embodiment 4 structural representation of the present invention;
Fig. 9 a, Fig. 9 b, Fig. 9 c are vacuum glass embodiment 5 work in-process of the present invention and finished product structure schematic diagram;
Figure 10 a, Figure 10 b, Figure 10 c are vacuum glass embodiment 6 work in-process of the present invention and finished product structure schematic diagram;
Figure 11 a, Figure 11 b, Figure 11 c are vacuum glass embodiment 7 work in-process of the present invention and finished product structure schematic diagram;
Figure 12 a, Figure 12 b, Figure 12 c are vacuum glass embodiment 8 work in-process of the present invention and finished product structure schematic diagram;
Figure 13 a, Figure 13 b, Figure 13 c are vacuum glass embodiment 9 work in-process of the present invention and finished product structure schematic diagram;
Figure 14 a, Figure 14 b, Figure 14 c are vacuum glass embodiment 10 work in-process of the present invention and finished product structure schematic diagram;
Figure 15 a, Figure 15 b, Figure 15 c are vacuum glass embodiment 11 work in-process of the present invention and finished product structure schematic diagram;
Figure 16 a, Figure 16 b, Figure 16 c are vacuum glass embodiment 12 work in-process of the present invention and finished product structure schematic diagram;
Figure 17 a, Figure 17 b, Figure 17 c are vacuum glass embodiment 13 work in-process of the present invention and finished product structure schematic diagram;
Figure 18 is vacuum glass embodiment 14 structural representation of the present invention;
Figure 19 a, Figure 19 b, Figure 19 c are vacuum glass embodiment 15 work in-process of the present invention and finished product structure schematic diagram;
Figure 20 a, Figure 20 b, Figure 20 c are vacuum glass embodiment 16 work in-process of the present invention and finished product structure schematic diagram;
Figure 21 a, Figure 21 b are vacuum glass embodiment 17 work in-process of the present invention and finished product structure schematic diagram, are one to utilize the present invention to make three glass sheets and three with upper glass plates vacuum glass example;
Figure 22 a, Figure 22 b are vacuum glass embodiment 18 work in-process of the present invention and finished product structure schematic diagram, are one to utilize the present invention to make three glass sheets and three with the another example of upper glass plates vacuum glass.
The upper glass sheets of description of reference numerals: 1-; Glass sheets under 2-; 3-intermediate supports; The melten glass sealing-in limit that 4-is directly made up of cryogenic glass powder slurry; Vacuum space between 5-two sheet glass; The resin material of 6-between sheet glass is or/and film condensation material; The metal layer that 7-sinters in glass pane surface; 8-sealing of metal sheet; The brazing metal of 9-low melting point; The cryogenic glass powder spacer bar of 10-pre-burning; 11-glass powder slurry; 12-plane section type metal belting; 13-metal seal band; 14-L shape section type metal belting; There is on 15-bending edges or in planar body the L shape section type metal belting of half elliptic cross section indent; 16-has the metal seal band of half elliptic cross section indent; 17-bending edges has the L shape section type metal belting of square-section indent; 18-has the metal seal band of square-section indent; There is on 19-bending edges or in planar body the L shape section type metal belting of trapezoid cross section indent; 20-has the metal seal band of trapezoid cross section indent; There is on 21-bending edges or in planar body the L shape section type metal belting of trilobal(cross)section indent; 22-has the metal seal band of trilobal(cross)section indent; 23-L shape section type metal belting; 24-metal seal band; There is on 25-bending edges or in planar body the L shape section type metal belting of square-section indent; 26-has the metal seal band of square-section indent; 27-low melting point brazing metal; The intermediate glass plates of 28-tri-two vacuum chamber vacuum glass; 29-is used for the U-shaped metal belting of intermediate glass plates; The upper surface of A-upholder; The upper surface of B-metal belting;
The contact surface of D-metal seal band and metal belting; T-difference of altitude.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 5 a, the work in-process of vacuum glass sealing structure of the present invention, it comprises glass sheets 1 and welding metal belting 12, the circumferential surface that described upper glass sheets 1 has upper and lower two plate faces and is connected between described two plate faces, described circumferential surface is connected with described metal belting 12 by glass powder slurry 11 melting.Certainly, as shown in Figure 5 b, metal belting 12 also can be connected on the circumferential surface of described lower glass sheets 2, forms another work in-process.
Welding metal belting 12 in above-described embodiment, its material is chosen as kovar alloy band material, Ag metal belting, Cu-Ag alloy strip material, Ni metal belting, Ni-Ag alloy strip material, Sn and the various release quantity under vacuum such as alloy strip material, Stainless Steel Band material is little, the metal and alloy materials of good welding performance.
For vacuum glass embodiment 1 of the present invention shown in Fig. 5 c, introduce vacuum glass sealing method provided by the invention:
The one side of the effigurate metal belting of tool 12 applies certain thickness glass powder slurry 11, glass powder slurry 11 seasoning or oven dry;
As shown in Fig. 5 a, Fig. 5 b, metal belting 12 is coated with glass powder slurry 11 one is fitted on the circumferential surface of described upper glass sheets 1 or lower glass sheets 2 facing to upper glass sheets 1 or lower glass sheets 2;
Glass powder slurry 11 melting be coated on metal belting 12 is made by heating, after glass powder slurry 11 condensation, namely the circumferential surface of described upper glass sheets 1 or lower glass sheets 2 realizes integrated connection with metal belting 12, the work in-process of formation as shown in Fig. 5 a, Fig. 5 b (in fact, also can first glass powder slurry 11 be coated on the circumferential surface of sheet glass 1,2, after drying, again metal belting 12 to be fitted on glass powder slurry 11 and heating and melting connects as one, also can to form described work in-process);
Glass sheets 1 and lower glass sheets 2 are after integration is connected with metal belting 12 respectively on described, as shown in Figure 5 c, by relative superimposed with lower glass sheets 2 for described upper glass sheets 1, and make metal belting 12 relative bonding that connect integrated with in lower glass sheets 2 of described upper glass sheets 1 in the outside of the circumferential surface of sheet glass 1,2, then utilize the metal beltings 12 of welding technique to described relative bonding such as laser welding, ultrasonic welding, resistance welding to implement airtight welding.
Adopt above-mentioned method for sealing, glass sheets 1 and the edge hermetic seal of lower glass sheets 2 can be made, vacuum space 5 can be formed after evacuation, namely form the hollow glass structure of airtight good, heat insulation, sound insulation.
In order to form described vacuum space 5, between two glass sheets 1 and 2, be also provided with intermediate supports 3.Can not occur crooked in order to make upper glass sheets 1 when superimposed with lower glass sheets 2, in the present embodiment, in described lower glass sheets 2, the upper surface B of the metal belting 12 that the upper surface A of the upholder 3 of set is connected with one on described sheet glass should be in same level.This both can be ensured by frock, and also can be ensured by integral grinding mode after melting connects, following examples all have identical requirement, and intermediate supports 3 also can anchor in glass sheets 1, and these all repeat no more afterwards.
In above-mentioned method for sealing, the mode applying certain thickness glass powder slurry be spray, the mode such as dip-coating or silk screen printing, be prepared on sealing-in metal belting with the form of manual application or machinery coating, the glass powder slurry after coating can seasoning also can take the mode of artificial drying to carry out drying treatment;
In above-mentioned method for sealing, if when upper glass sheets 1 is with lower glass sheets 2 the simple glass plate not carrying out tempering or half tempered process, now coated on metal belting 12 glass powder slurry 11 is high temp glass powder slurry, after glass powder slurry 11 drying, the metal belting 12 being coated with glass powder slurry 11 is fitted in sheet glass 1, on 2 circumferential surfaces, just can according to already known processes to sheet glass 1, 2 carry out tempering or half tempered process, to sheet glass 1, the metal belting 12 and the sheet glass 1 that are coated with glass powder slurry 11 can be realized in the tempering of 2 or half tempered treating processes simultaneously, 2 circumferential surfaces realize integration by the heating and melting state of glass powder slurry 11 and connect,
If when upper glass sheets 1 or lower glass sheets 2 are the sheet glass having carried out tempering or half tempered process, now coated on metal belting 12 glass powder slurry 11 is cryogenic glass powder slurry, after glass powder slurry 11 drying, adopt monolithic glass plate 1, 2 first entirety are warmed up to a basal temperature, as 200 DEG C ~ 300 DEG C, then local heating sheet glass 1, 2 circumferential surface places, its temperature is made to reach 350 DEG C ~ 425 DEG C, make the metal belting 12 and the sheet glass 1 that are coated with glass powder slurry 11, 2 circumferential surfaces realize integration by the heating and melting state of glass powder slurry 11 and connect, the sheet glass 1 carrying out tempering or half tempered process can be prevented like this, 2 are annealed in the process.
Above-described embodiment 1 is only a preferred embodiment, also has a lot of distortion on this basis and replaces embodiment, such as:
Metal belting 12 in embodiment 1 is plane section type, but consider that the glass powder slurry 11 be coated on metal belting 12 may have flowing when heating and melting state, cause sealed edge irregular after trickling, affect attractive in appearance, and easily cause metal belting 12 with upper slice, lower glass sheets 1, unreal situation filled by molten glass between 2, so in the embodiment 2 shown in Fig. 7 c, have employed L shape section type metal belting 14, its planar body formed on the side of butt end a bending edges with press close to described upper slice, lower glass sheets 1, the circumferential surface of 2.Thus, restriction can be formed to the flowing of the glass powder slurry 11 under heating and melting state by means of bending edges, with ensure metal belting 12 and upper slice, glass powder slurry 11 melt molding in the space limited of molten state between lower glass sheets 1,2, metal belting 12 and sheet glass 1,2 are firmly linked into an integrated entity.In addition, in order to be full of the whole section of L shape section type metal belting 14 after ensureing glass powder slurry 11 melting, the coating height of glass powder slurry 11 will exceed height difference of altitude T of the planar body of described L shape section type metal belting 14.Though T value does not mark in aftermentioned embodiment, this principle is applicable equally.
After melting to ensure to have between metal belting 12 and sheet glass 1,2 the glass powder slurry 11 of abundant molten state, the two being linked into an integrated entity, the volume of glass powder slurry 11 between metal belting 12 and sheet glass 1,2 can be strengthened.For this reason, we can process hypotenuse or recessed to form bevel edge circumferential surface or step-like circumferential surface on the circumferential surface of sheet glass 1,2, now the circumferential surface of sheet glass 1,2 need adopt emery wheel to grind off certain thickness glass baseplate, and described hypotenuse or be recessedly finally formed in the side of described sheet glass towards adjacent sheets of glass, as shown in Fig. 7 c, Fig. 8, Fig. 9 c, Figure 10 c, Figure 11 c, Figure 12 c, Figure 13 c, Figure 14 c, Figure 15 c, Figure 16 c, Figure 17 c, Figure 18, Figure 19 c, Figure 20 c, Figure 21 b, Figure 22 b.
In order to realize low temperature welding, in order to avoid make the sheet glass of tempering or half tempered anneal, on the basis of the embodiment 2 shown in Fig. 7 c, as Fig. 9 c, Figure 11 c, Figure 13 c, Figure 15 c, shown in Figure 19 c, two bending edges surface indent respectively in opposite directions of the L shape section type metal belting 15 connected can also be made, described indent can apply in advance for low melting point brazing metal 27, like this, after described metal belting 12 is corresponding superimposed, the low melting point brazing metal 27 of described interior recess coating passes through laser welding, ultrasonic welding, induction heating, the welding process hermetic seals such as Infrared Heating are integrated, thus low temperature airtight welding can be realized.Wherein, described low melting point brazing metal is the materials such as tin, zinc or Zinc-tin alloy.Low melting point brazing metal coating step herein can metal belting 12 and sheet glass 1,2 utilize cryogenic glass powder slurry 11 link together before carry out or carry out afterwards.
In above-described embodiment, be form sealing by airtight welding between abutted surface between the metal belting 12 connected, and in fact, as shown in Figure 6, can also weld with same metal seal band 13 at the outer side of the metal belting 12 connected and realize hermetic seal.Adopt this structure, between the metal belting 12 connected, the area in original less welding material district just expands a lot.Adopt this welded construction, require that contact surface D between described metal seal band 13 and the metal belting 12 connected at grade, following examples also have same requirement, have just repeated no longer one by one.
Embodiment shown in Fig. 8, Figure 18 is in the embodiment shown in Fig. 7 c, Figure 17 c, with the addition of described metal seal band 13, all the other similar.
Figure 10 c, Figure 12 c, Figure 14 c, Figure 16 c, Figure 20 c is then at Fig. 9 c respectively, Figure 11 c, Figure 13 c, Figure 15 c, the basis of the embodiment of Figure 19 c increases metal seal band, and by metal belting 15 in each embodiment, 17, 19, indent between 25 bending edges is changed to and is formed in metal belting 15, 19, 21, the planar body of 25 and metal seal band 16, 18, 20, 22, 26 in opposite directions on the surface, apply for low melting point brazing metal, be convenient to metal belting 15, 19, 21, the planar body of 25 and metal seal band 16, 18, 20, 22, low temperature welding is realized between 26.
Because the sealing-in position of vacuum glass is positioned at the periphery of sheet glass, and be a closed annular, therefore, after being set up the intermediate supports of proper density according to suitable distance cloth in an appropriate manner between inboard for sealing-in position two glass sheets, volume between two glass sheets is evacuated and has namely made vacuum glass, if used two pieces of sheet glass are toughened glass, be toughened vacuum glass.In order to make to form vacuum between upper and lower two sheet glass, can by presetting the mode of bleeding point on upper or lower glass sheets, between two glass sheets to be done metal sealing band hermetic seal after vacuumize again to realize vacuum tightness, after being extracted into predetermined vacuum tightness, the bleeding point soldering and sealing will preset again, thus complete the making of vacuum glass; Also can by the conjunction sheet of upper and lower glass sheets and being all placed in vacuum chamber in the lump the welding process of the hermetic seal of metal sealing band between two glass sheets be completed.
Adopt sealing structure provided by the invention and method, the vacuum glass structure of double glazing unit can not only be formed, also can form the vacuum glass structure of the triplex glass plate as shown in Figure 21 b, Figure 22 b, the vacuum glass structure of even more multi-layered sheet glass.On this basis, then increase metal seal band, form indent on the surface in opposite directions even at the planar body of metal belting and metal seal band, for the coating of low melting point brazing metal, realize low melting point welding, all can realize.
More than illustrate just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection scope of the present invention.
Claims (20)
1. the work in-process of a vacuum glass sealing structure, it is characterized in that: comprise sheet glass and welding metal belting, described sheet glass has two plate faces and is connected to the circumferential surface between described two plate faces, and described circumferential surface connects described metal belting by the melting of glass powder slurry.
2. a vacuum glass sealing structure, described vacuum glass has at least two-layer sheet glass be arranged in parallel, it is characterized in that: the circumferential surface of every one deck sheet glass is connected with metal belting by glass powder slurry heating and melting, the metal belting on the sheet glass of adjacent layers in the outer side engagement of the circumferential surface of the sheet glass of described adjacent layers and airtight welding be integrated.
3. vacuum glass sealing structure according to claim 2, is characterized in that: the joint welding of the metal belting connected is to form described airtight welding.
4. vacuum glass sealing structure according to claim 2, it is characterized in that: described metal belting has the planar body perpendicular to described sheet glass, the outer side of the planar body of the metal belting connected and same metallic seal welding are to form described airtight welding.
5. vacuum glass sealing structure according to claim 2, it is characterized in that: described metal belting has the planar body perpendicular to described sheet glass, the planar body of described metal belting is provided with one or two bending edges, and the end of described bending edges presses close to the circumferential surface of described sheet glass.
6. vacuum glass sealing structure according to claim 5, is characterized in that: the circumferential surface of described sheet glass is provided with hypotenuse or recessed.
7. vacuum glass sealing structure according to claim 6, is characterized in that: towards the side of adjacent sheets of glass on described hypotenuse or the recessed circumferential surface being formed in described sheet glass.
8. vacuum glass sealing structure according to claim 5, it is characterized in that: the concave surface in opposite directions of the bending edges of the metal belting connected, be coated with low melting point brazing metal in described indent, described in the bending edges of metal belting that connects form described airtight welding by described low melting point brazing metal.
9. vacuum glass sealing structure according to claim 4, it is characterized in that: the indent on the surface in opposite directions of the planar body of described metal belting and described metal seal band, be coated with low melting point brazing metal in described indent, the planar body of described metal belting and described metal seal band form described airtight welding by described low melting point brazing metal.
10. a vacuum glass sealing method, described vacuum glass has at least two-layer sheet glass be arranged in parallel, it is characterized in that, described method for sealing comprises the steps:
Step a: at the one side coated glass powder slurry of metal belting, or, coated glass powder slurry on the circumferential surface of sheet glass, the seasoning of described glass powder slurry or oven dry;
Step b: metal belting of fitting on the circumferential surface of every one deck sheet glass, and make described glass powder paste material level between described metal belting and the circumferential surface of sheet glass, make the melting of glass powder slurry by heating, the circumferential surface of described sheet glass and metal belting are connected as one by condensed glass powder slurry;
Step c: by superimposed for the sheet glass of adjacent layers, makes the metal belting on the sheet glass of adjacent layers in the outer side engagement of the circumferential surface of the sheet glass of described adjacent layers and airtight welding is integrated;
Wherein, step c carries out after step b, or step c and step b carries out simultaneously.
11. vacuum glass sealing methods according to claim 10, is characterized in that: in step c, and the joint welding of the metal belting connected is to form described airtight welding.
12. vacuum glass sealing methods according to claim 10, it is characterized in that: in step c, described metal belting has the planar body perpendicular to described sheet glass, and the outer side of the planar body of the metal belting connected and same metallic seal welding are to form described airtight welding.
13. vacuum glass sealing methods according to claim 10, it is characterized in that: described metal belting has the planar body perpendicular to described sheet glass, the planar body of described metal belting is provided with one or two bending edges, and the end of described bending edges presses close to the circumferential surface of described sheet glass.
14. vacuum glass sealing methods according to claim 10, is characterized in that: in step b, the circumferential surface of described sheet glass are previously provided with hypotenuse or recessed.
15. vacuum glass sealing methods according to claim 14, is characterized in that: towards the side of adjacent sheets of glass on described hypotenuse or the recessed circumferential surface being formed in described sheet glass.
16. vacuum glass sealing methods according to claim 13, it is characterized in that: in step c, the concave surface in opposite directions of the bending edges of the metal belting connected, be coated with low melting point brazing metal in described indent, described in the bending edges of metal belting that connects form described airtight welding by described low melting point brazing metal.
17. vacuum glass sealing methods according to claim 12, it is characterized in that: in step c, the indent on the surface in opposite directions of the planar body of described metal belting and described metal seal band, be coated with low melting point brazing metal in described indent, the planar body of described metal belting and described metal seal band form described airtight welding by described low melting point brazing metal.
18. vacuum glass sealing methods according to claim 10, is characterized in that: in step a, and glass powder slurry coated on metal belting is high temp glass powder slurry; In step b, described sheet glass is the simple glass plate not carrying out tempering or half tempered process, then, while carrying out step b, also carry out tempering or half tempered process to described sheet glass.
19. vacuum glass sealing methods according to claim 10, is characterized in that: in step a, and glass powder slurry coated on metal belting is cryogenic glass powder slurry; In step b, described sheet glass is the sheet glass carrying out tempering or half tempered process, then, in step b, first monolithic glass slab integral is warmed up to a basal temperature, then the circumferential surface position of local heating sheet glass, makes metal belting realize integrated connection with the circumferential surface of sheet glass by the heating and melting state of glass powder slurry.
20. vacuum glass sealing methods according to claim 19, is characterized in that: described basal temperature is 200 DEG C ~ 300 DEG C, and the circumferential surface position of described local heating sheet glass will make its temperature reach 350 DEG C ~ 425 DEG C.
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