CN102951794A - Vacuum glass edge sealing method by utilizing low-temperature glass solders and product manufactured by method - Google Patents
Vacuum glass edge sealing method by utilizing low-temperature glass solders and product manufactured by method Download PDFInfo
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- CN102951794A CN102951794A CN2012100756202A CN201210075620A CN102951794A CN 102951794 A CN102951794 A CN 102951794A CN 2012100756202 A CN2012100756202 A CN 2012100756202A CN 201210075620 A CN201210075620 A CN 201210075620A CN 102951794 A CN102951794 A CN 102951794A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention provides a vacuum glass edge sealing method which is conducted by utilizing edge sealing strip frames and low-temperature glass solders, wherein the edge sealing strip frames are arranged at the peripheries of upper glass and lower glass of vacuum glass, so that the edge sealing of the vacuum glass is simple and convenient, and the sealing effect of the upper glass and the lower glass can be ensured by the mutual embedding of the upper edge sealing strip frame and the lower edge sealing strip frame. According to the method, the manufacturing process is simple, the cost is low, the production efficiency is high, the sealing is reliable, the sealing effect is good, the vacuum glass without a special extraction opening can be manufactured in large batch by a one-step method by utilizing the technology, and due to the method, both common vacuum glass and tempering vacuum glass can be manufactured.
Description
Technical field
The present invention relates to the processing and manufacturing of vacuum glass, edge bonding method of especially a kind of vacuum glass and products thereof.
Background technology
Vacuum glass is a kind of novel energy-conserving, environmentfriendly products, can be widely used in the industrial or agricultural fields such as building window, glass curtain wall, solar product, agricultural greenhouse, refrigerator and refrigerator and the resident's daily living article, be good heat insulation, sound insulation and finishing material.In the making processes of vacuum glass, the structure of edge sealing-in and technology be guarantee that circumference of vacuum glass is indeformable, do not produce the stress that exceeds standard, air tight and keep the gordian technique of toughened glass characteristic.During patent CN94192667.2 " makes the method for vacuum glazing ", edge packing structure is designed to that upper glass is slightly less than lower-glass in two blocks of glass, the low melting glass scolder places on the edge step of two glass formation, glass solder after the fusing is because capillarity flows into two glass gaps, the method is the present edge sealing technology of the most representative and tool practicality, but has the shortcoming that the scolder consumption is large, the edge is uneven, stress is larger; Among patent CN95108228.0 " vacuum flat glass and manufacture method thereof " and the CN96208977.X " vacuum flat glass ", adopt in advance " chamfering " processing of glass plate edge, scolder is placed in the chamfering grain, and the method exists the large and low melting glass scolder of cloth difficulty adding when heat-sealable the easily deficiency of loss; Patent CN02256440.3 " edge packing structure of vacuum glass " is that periphery is put the loss that helps strip of paper used for sealing to stop scolder liquid on lower sheet glass, although the method has solved the problem of the outside loss of scolder liquid, but complex process, help strip of paper used for sealing to take larger space, can not solve the problem that scolder liquid flows to inside glass; The edge bonding method of the vacuum glass that patent CN200620070302.7 " Whole transparent vacuum glass " proposes is to make with glass or make edge band through surface treatment at glass edge, and its shortcoming is that not only cost of manufacture is high nor can limit solder and flow to inside glass for edge band; Patent CN200920314752.X " edge sealing structure of vacuum glass " is that upper sheet glass and/or the substrate glass between upper sheet glass and substrate glass edge is shaped with the geometric form packing groove, although can improve lock packing tack between the sheet glass on substrate glass reaches, but make packing groove not only complex process, glass is caused damage, nor can limit arbitrarily flowing of lock packing; Patent CN201010228110.5 " a kind of method for sealing edge of vacuum glass " puts the glass welding material at vacuum glass raw sheet periphery, the interior impervious barrier that one deck is made of powdery or fibrous material is set in the inboard of glass welding material, it is inner that restriction glass solder liquid flows into vacuum glass, compared with prior art, the method only is to have limited glass solder liquid to flow into vacuum glass inside, fails to overcome other shortcomings.To sum up the main weak point of existing edge bonding method is: the one, and structure and complex process are not suitable for mechanize, automatization and mass production; The 2nd, the difficulty of bleeding in the edge sealing process, need to special bleeding point be set on glass, be not suitable for directly bleeding from the limit section of glass.
Summary of the invention
Problem for the prior art existence, the object of the present invention is to provide a kind of vacuum glass edge sealing method, not only manufacture craft is simple, cost is low for the method, production efficiency is high, and sealing-in is reliable, good sealing effect, utilize this technology can single stage method, preparation in enormous quantities do not have the vacuum glass of special bleeding point, the method not only can be made general vacuum glass, and can make toughened vacuum glass.
In order to solve the problems of the technologies described above, the invention provides a kind of edge bonding method of vacuum glass, it comprises:
The first step according to the shape of the vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment;
Second step, the face of weld of the glass after two processing utilizes mould printing technology and cryogenic glass powder to prepare the edge band frame, and after guaranteeing upper and lower glass alignment, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, then after drying, in High Temperature Furnaces Heating Apparatus, edge band frame and upholder are carried out high temperature sintering curing;
The 3rd step, the solder of packing between the edge band frame of the glass that second step is obtained, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to more than the melt temperature of solder, reach the edge sealing temperature; Solder is melted into liquid, and under the effect of glass self gravitation, upper and lower edge band frame is entrenched togather mutually; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required vacuum glass.
In order to solve the problems of the technologies described above, the invention provides a kind of vacuum glass, it comprises: upper glass, lower-glass, the periphery of the face of weld of described upper glass and described lower-glass all has the edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, forms the vacuum layer of a sealing between described upper glass and the described lower-glass.
In order to solve the problems of the technologies described above, the present invention also provides a kind of edge bonding method of toughened vacuum glass, and it comprises:
The first step according to the shape of the toughened vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment;
Second step, the face of weld of the glass after processing utilizes mould printing technology and cryogenic glass powder to prepare the edge band frame, and after guaranteeing upper and lower glass alignment, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, then after drying, in annealing furnace it being carried out tempering processes;
The 3rd step, the solder of packing between the edge band frame of the glass that second step is obtained, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the vacuum edge sealing stove; Described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, adopt basic heating system that described vacuum edge sealing furnace interior and upper and lower bulk glass are heated to a basal temperature first, adopt again the local heating system that local heating is carried out in the glass periphery position, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature; Solder is melted into liquid, and under the effect of glass self gravitation, upper and lower edge band frame is entrenched togather mutually; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required toughened vacuum glass.
In order to solve the problems of the technologies described above, the invention provides a kind of toughened vacuum glass, it comprises: upper glass, lower-glass, described upper glass and described lower-glass are toughened glass, the periphery of the face of weld of described upper glass and described lower-glass all has the edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, and described solder is low temperature glass solder, forms the vacuum layer of a sealing between described upper glass and the described lower-glass.
Wherein, described vacuum glass can also comprise one flat plate glass, and described sheet glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described sheet glass.
Wherein, described upper and lower glass is sheet glass, or convex glass.
When described upper and lower glass is convex glass, the high 0.1mm that is not less than of the convex surface of described convex glass bow is preferably 0.1 ~ 200mm.
The preparation of described convex glass be with sheet glass pack into mould, be placed in the bending furnace, be warming up to 550～750 ℃ of the softening temperature of glass, rely on the gravity of glass self to make glass form convex surface downwards.
When described upper and lower glass is sheet glass, have in the vacuum layer that forms between described upper glass and the described lower-glass to be the upholder that dot matrix is arranged.
Above support is made by metal, pottery or glass, preferably adopts the preparation of mould printing cryogenic glass powder or low temperature glass solder.
Above support be printed on one on glass, or be printed on two on glass.
Above support is cylindric, or is strip; When upholder only is printed on one when on glass, be preferably cylindric; When upholder is printed on two when on glass simultaneously, be preferably strip, and vertical pile.
Wherein, the periphery of described upper glass face of weld has an edge band frame at least, and the periphery of described lower-glass face of weld has two edge band frames at least.
Wherein, described edge band frame is made by printing or the mode that applies, preferably adopts the mould printing cryogenic glass powder to make, and it is 550 ~ 750 ℃ glass glaze that described cryogenic glass powder is preferably commercially available melt temperature.
Wherein, described mode of printing is the method that adopts silk screen printing or mould printing or printer, and cryogenic glass powder is imprinted on the fin that formation on glass is raised in glass surface.
Wherein, when described edge band frame adopts the mould printing cryogenic glass powder to prepare, can be one-step print, also can be repeatedly to print.
Wherein, the height of described edge band frame is preferably 0.1～10mm, 0.5～2mm more preferably, and width is preferably 0.2～5mm, more preferably 1～2mm.
Wherein, described solder is low temperature glass solder.
The preferred commercially available melt temperature scope of described low temperature glass solder is 430～450 ℃ crown glass scolder.
Wherein, above support is made by metal, pottery or glass, and preferred printing cryogenic glass powder or the low temperature glass solder of adopting prepares.
Beneficial effect of the present invention:
The edge bonding method of vacuum glass of the present invention utilizes edge band frame and solder to carry out, on the vacuum glass, the periphery of lower-glass contains the edge band frame, so that the edge sealing of vacuum glass is easier, the mutual chimeric sealing effectiveness of glass under deformation that guaranteed of edge band frame up and down, have the bonding strength higher than low temperature glass solder between edge band frame and the upper lower-glass, sealing surface area and airtight layer thickness between the upper lower-glass have been increased, solved the uneven problem of sealing of existing edge of vacuum glass, sticking power and the adhesion strength of sealing-in have greatly been strengthened, on having increased, the tightness of vacuum layer between the lower-glass, improved the life-span of vacuum glass, and can save and make and the great bleeding point of sealing difficulty, realized that the single stage method mass prepares vacuum glass and toughened vacuum glass.The mode of employing automatic edge sealing in vacuum edge sealing stove is saved and is made and very large bleeding point and the extraction pipe of sealing difficulty, has simplified technological process, has lowered production cost, has shortened the production cycle, has improved production efficiency.Vacuum glass prepared by this method and toughened vacuum glass, good seal performance not only, and can suitability for industrialized production, the productivity of vacuum glass and greatly raising of qualification rate, production cost and selling price are significantly reduced.
Description of drawings
Fig. 1 is the up and down vacuum glass structural representation of upholder that has of the present invention;
Fig. 2 is convex surface toughened vacuum glass structural representation of the present invention;
Fig. 3 is dull and stereotyped toughened vacuum glass structural representation of the present invention;
Fig. 4 is the up and down dull and stereotyped toughened vacuum glass structural representation of upholder that has of the present invention;
Fig. 5 is the convex surface vacuum glass structural representation of of the present invention pair of vacuum layer.
Among the figure: 1. upper glass, 2. lower-glass, 3. solder, 4. the edge band frame on the lower-glass, 5. the edge band frame of upper glass, the 6. upholder on the lower-glass, the 7. upholder on the upper glass, 8. intermediate glass.
Embodiment
The invention provides a kind of edge bonding method of vacuum glass, it comprises:
The first step according to the shape of the vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment;
Second step, the face of weld of the glass after two processing utilizes mould printing technology and cryogenic glass powder to prepare the edge band frame, and after guaranteeing upper and lower glass alignment, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, then after drying, in High Temperature Furnaces Heating Apparatus, edge band frame and upholder are carried out high temperature sintering curing;
The 3rd step, the solder of packing between the edge band frame of the glass that second step is obtained, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to more than the melt temperature of solder, reach the edge sealing temperature; Solder is melted into liquid, and under the effect of glass self gravitation, upper and lower edge band frame is entrenched togather mutually; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required planar vacuum glass.
The invention provides the vacuum glass of the above-mentioned edge bonding method preparation of a kind of foundation, it comprises: upper glass, lower-glass, the periphery of the face of weld of described upper glass and described lower-glass all has the edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, forms the vacuum layer of a sealing between described upper glass and the described lower-glass.
The present invention also provides a kind of edge bonding method of toughened vacuum glass, and it comprises:
The first step according to the shape of the toughened vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment;
Second step, the face of weld of the glass after processing utilizes mould printing technology and cryogenic glass powder to prepare the edge band frame, and after guaranteeing upper and lower glass alignment, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, then after drying, in annealing furnace it being carried out tempering processes;
The 3rd step, the solder of packing between the edge band frame of the glass that second step is obtained, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the vacuum edge sealing stove; Described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, adopt basic heating system that described vacuum edge sealing furnace interior and upper and lower bulk glass are heated to a basal temperature first, adopt again the local heating system that local heating is carried out in the glass periphery position, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature; Solder is melted into liquid, and under the effect of glass self gravitation, upper and lower edge band frame is entrenched togather mutually; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required toughened vacuum glass.
The invention provides the toughened vacuum glass of the above-mentioned edge bonding method preparation of a kind of foundation, it comprises: upper glass, lower-glass, described upper glass and described lower-glass are toughened glass, the periphery of the face of weld of described upper glass and described lower-glass all has the edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, forms the vacuum layer of a sealing between described upper glass and the described lower-glass.
Wherein, described vacuum glass can also comprise one flat plate glass, and described sheet glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described sheet glass.
Wherein, described solder is low temperature glass solder.
The preferred commercially available melt temperature scope of described low temperature glass solder is 430～450 ℃ crown glass scolder.
Wherein, described upper and lower glass is sheet glass, or convex glass.
When described upper and lower glass is convex glass, the high 0.1mm that is not less than of the convex surface of described convex glass bow is preferably 0.1 ~ 200mm.
The preparation of described convex glass be with sheet glass pack into mould, be placed in the bending furnace, be warming up to 550～750 ℃ of the softening temperature of glass, rely on the gravity of glass self to make glass form convex surface downwards.
When described upper and lower glass is sheet glass, have in the vacuum layer that forms between described upper glass and the described lower-glass to be the upholder that dot matrix is arranged.
The material of above support is low temperature glass, metal, pottery, glass or plastics, is preferably low temperature glass.
Above support preferably adopts cryogenic glass powder or low temperature glass solder to utilize the mould printing technology to make, and the sintering temperature of described low temperature glass solder is lower than cryogenic glass powder.
The above support minimum unit can be that the dot matrix of equilateral triangle is arranged, and the leg-of-mutton length of side is about 30～300mm, is preferably 50～150mm; Upholder is strip, its length is 0.3～5.0 mm, be preferably 0.5～2.0 mm, width is 0.1～2.0mm, be preferably 0.2～1.0mm, be 0.1～10.0mm highly, be preferably 0.5～3.0mm, the height of upholder be higher than the edge band frame height 0.1～2.0mm, be preferably 0.1～0.5mm; Upholder also can be for cylindric, its diameter is 0.1～3.0mm, be preferably 0.3～2.0mm, be 0.1～5.0 mm highly, be preferably 0.5～3.0mm, two blocks of glass closed sheet rear support thing position spatial altitude 0～0.3 mm, are preferably 0.1～0.2mm about the height of upholder was higher than.
When above support is printed on one when on glass, be preferably cylindric; When upholder is printed on up and down two when on glass simultaneously, be preferably strip.
When above support was printed before glass tempering, preferred cryogenic glass powder was made; When upholder was printed behind glass tempering, preferred low temperature glass solder was made.
When described upper and lower glass all has the strip upholder, the upholder vertical pile supports, upper lower-glass still is the some contact by upholder, and contact for line between upholder and the glass, increased contact area, reduced the tension stress of glass in support place, thus the quantity of upholder can be reduced, thus further improve the transparency of glass, heat insulation and sound-proofing properties.
The material of described upper and lower glass can be simple glass or toughened glass or semi-tempered glass or low emissivity glass or wire glass or rolled glass or hot melt glass, or the combination of above any two or three kinds of glass, more preferably toughened glass, semi-tempered glass and low emissivity glass.
The periphery of described upper glass contains an edge band frame at least, and the periphery of described lower-glass contains two edge band frames at least.
The height of described edge band frame is preferably 0.1～10mm, 0.1～1mm more preferably, and width is preferably 0.2～5mm, more preferably 1～2mm.
Can leave several aspirating holes on the described edge band frame, namely perpendicular to the edge band frame and along the equally distributed groove of edge band frame or slit, quantity is by the girth decision of upper and lower glass, and spacing approximately 50～150mm is advisable, and can seal described aspirating hole after described solder fusing; Also can not stay aspirating hole, utilize the formed space, rough surface of the solder that applies as the passage that vacuumizes, can shorten the time that vacuumizes but leave aspirating hole.
When containing two or more edge band frame, described solder is in the centre of described edge band frame, described edge band frame is when the upper surface of the middle sheet glass of the convex glass with two vacuum layer, identical with described lower-glass, when the lower surface of described sheet glass, identical with described upper glass.
The edge band frame of described lower-glass is Duoed one than the edge band frame of described upper glass, be that described upper glass contains an edge band frame at least, described lower-glass contains two edge band frames at least, the edge band frame of described upper glass is inserted in the edge band frame of described lower-glass, on described, the edge band frame of lower-glass is entrenched togather mutually, vacuum layer is carried out labyrinth seal, described edge band frame is when the upper surface of the middle sheet glass of the vacuum glass with two vacuum layer, identical with described lower-glass, when the lower surface of described sheet glass, identical with described upper glass.
Described edge band frame is made by the mode of squeezing, etching or printing, and described edge band frame comprises fin and groove, preferably adopts the silk screen printing cryogenic glass powder to make.
Described squeezing mode is to pack sheet glass into internal surface with in depression or the mold cavity of protruding lines, after pyroprocessing makes glass softening, sheet glass is exerted pressure, and forms fin and groove at the periphery of sheet glass.
Described etching mode is known prior art, utilizes method for printing screen that acid-proof ink is printed on sheet glass and does not need etched place, will not have the acid-proof ink place to erode away groove on the sheet glass with corrosive acids such as hydrofluoric acid.
Described mode of printing is the method that adopts silk screen printing or mould printing or printer, cryogenic glass powder is imprinted on forms the fin that is raised in surface of plate glass on the sheet glass.
When the printing of described edge band frame prepares, can be one-step print, also can be repeatedly to print.
The introducing of edge band frame not only can limit low temperature glass solder and dissolve and randomly flow, make edge sealing neatly good-looking afterwards, and play good supporting role, make low temperature glass solder keep certain thickness, reinforced seal effect, the more important thing is that its Heating temperature is high, with upper lower-glass more reliably bonding is arranged, surface irregularity, have more firmly with low temperature glass solder and to be combined, thereby improve resistance to air loss and the reliability of vacuum glass.
Make the low temperature glass solder that its melt temperature of cryogenic glass powder of edge band frame is used far above edge sealing, not only low price, performance are good, and with glass better bonding strength are arranged; After the edge band frame of upper lower-glass is mutually chimeric, not only reduced the edge sealing low temperature glass solder consumption, reduced the requirement to the edge sealing low temperature glass solder, and increased air retaining wall thickness, improved the sealing strength of upper lower-glass, the more important thing is to solve the sealing problem that the buckling deformation that produces because of glass brings in toughening process, thereby improve the qualification rate of product.
Below adopt embodiment and accompanying drawing to describe embodiments of the present invention in detail, how the utilisation technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.
Embodiment 1: referring to Fig. 1, two blocks of glass of vacuum glass are sheet glass, wherein one or low emissivity glass, on glassly all has an edge band frame at two, its making method is as follows: at first according to the shape of made vacuum glass and one flat plate glass and low emissivity glass of size cutting desired size, carry out edging, chamfering, clean, after the drying, two mould printing technology of utilizing on glass cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has two edge band frames, lower-glass has three edge band frames, the size of upper glass edge band frame is between lower-glass edge band frame, after upper lower-glass closes sheet, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, and the width of each edge band frame is 1.5mm, highly be 0.8mm; Secondly two blocks of glass are sent into respectively High Temperature Furnaces Heating Apparatus, in the softening melting of the high temperature action lower seal edge strip frame of 550 ~ 750 ℃ of High Temperature Furnaces Heating Apparatuss and glassy bond together, be down to immediately room temperature, obtain having the upper and lower glass of edge band frame; Then print simultaneously upholder at the cryogenic glass powder of upper and lower employing lower sintering temperature on glass, upholder is that minimum unit is the dot matrix arrangement of equilateral triangle, the leg-of-mutton length of side is 50mm, upholder is strip, its length be 2 mm, width be 0.60mm, highly for 0.5mm, the upholder of upper lower-glass is orthogonal, and it is crosswise shape that upper lower-glass closes sheet rear support thing overlapping; Again fill low temperature glass solder between three edge band frames with lower-glass, two glass consistencies from top to bottom are stacked together, and leave bleed-off passage, send in the vacuum edge sealing stove; Last while vacuumizing, heating, be evacuated to that 0.1Pa is following, the sintering temperature that is heated to upholder and the low temperature glass solder melt temperature in the edge band frame be more than 450 ℃, the edge band frame of upper glass embeds between the edge band frame of lower-glass under action of gravitation, the low temperature glass solder of melting with two glass cementations together, upholder vertical pile contact and with two glass sinterings up and down together, stopped heating, lower the temperature with stove, low temperature glass solder hermetic welds together two blocks of glass, opens fire door and obtains required vacuum glass.
Upholder adopts the cryogenic glass powder of lower sintering temperature to make, and makes it can sintering under the edge sealing temperature, and by means of its slightly high height, upper lower-glass can be bonded together reliably, thereby plays effective supporting role; Upper lower-glass all has the strip upholder, the upholder vertical pile supports, upper lower-glass still is the some contact by upholder, and contact for line between upholder and the glass, increased contact area, reduced the tension stress of glass in support place, thus the quantity of upholder can be reduced, thus further improve the transparency of glass, heat insulation and sound-proofing properties.
The introducing of edge band frame not only can limit solder and dissolve and randomly flow, make edge sealing neatly good-looking afterwards, and play good supporting role, make solder keep certain thickness, reinforced seal effect, the more important thing is that its Heating temperature is high, with upper lower-glass more reliably bonding is arranged, surface irregularity, have more firmly with low temperature glass solder and to be combined, thereby improve resistance to air loss and the reliability of vacuum glass.In addition, the edge band frame also is the key that single stage method prepares vacuum glass.
Embodiment 2: referring to Fig. 2, two blocks of glass of vacuum glass are toughened glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all has an edge band frame at two, its making method is as follows: at first according to the shape of made vacuum glass and one flat plate glass and low emissivity glass of size cutting desired size, carry out edging, chamfering, clean, after the drying, two printing technologies of utilizing on glass cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has an edge band frame, lower-glass has two edge band frames, the size of upper glass edge band frame is between two edge band frames of lower-glass, after upper lower-glass closed sheet, the edge band frame of upper glass can be embedded between two edge band frames of lower-glass; Secondly two blocks of glass are packed into mould, be placed in the bending furnace, be warming up to temperature 550-750 ℃ that glass softens, rely on the gravity of glass self to make glass form convex surface downwards, the edge band frame also is in softening molten state and glassy bond together, carry out immediately wind-cooling reinforcing, obtain tempering or semi-tempered glass; The fusing point of again packing between two edge band frames with lower-glass is 430 ℃ low temperature glass solder, and two glass consistencies from top to bottom are stacked together, reserve bleed-off passage, send in the vacuum edge sealing stove, vacuum edge sealing stove and accessory has basic heating system and local heating system; Last one side vacuumizes, utilize basic heating system heating on one side, be evacuated to below the 0.1Pa, after basal temperature rises to 300 ℃, recycling local heating system such as far infra-red heater are heated to melt temperature more than 430 ℃ with the low temperature glass solder in the edge band frame, the edge band frame of upper glass embeds under action of gravitation between two edge band frames of lower-glass, the low temperature glass solder of melting with two glass cementations together, stopped heating, lower the temperature with stove, low temperature glass solder hermetic welds together two blocks of glass, opens fire door and obtains required vacuum glass.
Innovative point of the present invention is: vacuum glass utilizes the convex shape of glass to resist normal atmosphere, makes two blocks of glass can not press together, keep the vacuum layer between two glass, has saved the very large upholder of manufacture difficulty; The mode of employing automatic edge sealing in vacuum oven is saved and is made and very large bleeding point and the extraction pipe of sealing difficulty, has simplified technological process, has lowered production cost, has shortened the production cycle, has improved production efficiency; Do not had stopping of upholder, transparency and the visibility of vacuum glass are better; Do not had the conduction of upholder, the heat insulation and sound-proofing properties of vacuum glass is better; Do not had bleeding point, the outward appearance of vacuum glass is more beautiful, it is more convenient to transport and install, failure rate is lower; Convex configuration makes glass that higher ultimate compression strength and bending strength be arranged, and the resisting wind press capacity of vacuum glass is better; Convex configuration makes vacuum layer that larger space be arranged, and more can keep for a long time the life-span of vacuum state, vacuum glass longer, even lose vacuum, its performance also is better than general double glazing.
Make the solder that its melt temperature of cryogenic glass powder of edge band frame is used far above edge sealing, not only low price, performance are good, and with glass better bonding strength are arranged; After the edge band frame of upper lower-glass is mutually chimeric, not only reduced the edge sealing solder consumption, reduced the requirement to the edge sealing solder, and increased air retaining wall thickness, improved the sealing strength of upper lower-glass, the more important thing is to solve the sealing problem that the buckling deformation that produces because of glass brings in toughening process, thereby improve the qualification rate of product.
Because tempering and semi-tempered glass have higher intensity, so under identical shape and size, the convex curvature of tempering or half tempered convex glass can be larger.Because vacuum edge sealing stove and accessory has basic heating system and local heating system, the temperature of glass edge is rapidly heated to welding temperature, and tempering or semi-tempered glass are under lower basal temperature, in the long period and higher local temperature, in shorter time phenomenon can not occur significantly to anneal, so can guarantee to obtain tempering or half tempered vacuum glass.
Embodiment 3: referring to Fig. 3, two blocks of glass of vacuum glass are toughened glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all has an edge band frame at two, its making method is as follows: at first according to the shape of made vacuum glass and one flat plate glass and low emissivity glass of size cutting desired size, carry out edging, chamfering, clean, after the drying, at two screen printing techniques that utilize on glass cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has two edge band frames, lower-glass has three edge band frames, the size of upper glass edge band frame is between lower-glass edge band frame, after upper lower-glass closes sheet, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, and the width of each edge band frame is 1.5mm, highly be 0.6mm; Secondly two blocks of glass are sent into respectively annealing furnace, in the softening melting of the high temperature action lower seal edge strip frame of annealing furnace and glassy bond together, carry out immediately wind-cooling reinforcing, obtain having tempering or the semi-tempered glass of edge band frame; And utilize low temperature glass solder to print upholder at upper or lower-glass, upholder is that minimum unit is the dot matrix arrangement of equilateral triangle, the leg-of-mutton length of side is 70mm, upholder is cylindric, its diameter is 0.6mm, highly for 0.8mm, for eliminating the difference of altitude that causes because of glass tempering, the height of upholder is higher than the height 0.2mm of edge band frame; The fusing point of again packing between three edge band frames with lower-glass is 450 ℃ low temperature glass solder, and two glass consistencies from top to bottom are stacked together, reserve bleed-off passage, send in the vacuum edge sealing stove, vacuum edge sealing stove and accessory has basic heating system and local heating system; Last one side vacuumizes, utilize basic heating system heating on one side, be evacuated to below the 0.1Pa, after basal temperature rises to 300 ℃, recycling local heating system such as far infra-red heater are heated to melt temperature more than 450 ℃ with the low temperature glass solder in the edge band frame, softening automatically the adaptation, be out of shape caused difference of altitude because of glass tempering between two blocks of glass to upholder first, with two glass cementations together, sintering curing again, the edge band frame of upper glass embeds under action of gravitation between two edge band frames of lower-glass, the low temperature glass solder of melting with two glass cementations together, stopped heating, lower the temperature with stove, low temperature glass solder hermetic welds together two blocks of glass, opens fire door and obtains required vacuum glass.
Upholder adopts low temperature glass solder to make, lower sintering temperature is arranged, make that it can soften, sintering under lower Heating temperature, and by means of its slightly high height, upper lower-glass can be bonded together reliably, thereby play effective supporting role.
Embodiment 4: referring to Fig. 4, two blocks of glass are toughened glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all has an edge band frame at two, its making method is as follows: at first according to the shape of made vacuum glass and one flat plate glass and low emissivity glass of size cutting desired size, carry out edging, chamfering, clean, after the drying, two printing technologies of utilizing on glass cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has two edge band frames, lower-glass has three edge band frames, the size of upper glass edge band frame is between lower-glass edge band frame, after upper lower-glass closes sheet, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, and the width of each edge band frame is 1.5mm, highly be 0.7mm; And at the upper and lower upholder of printing simultaneously on glass, upholder is that minimum unit is the dot matrix arrangement of equilateral triangle, the leg-of-mutton length of side is 80mm, upholder is strip, its length be 2 mm, width be 0.60mm, highly for 0.5mm, the upholder of upper lower-glass is orthogonal, and it is crosswise shape that upper lower-glass closes sheet rear support thing overlapping; Secondly two blocks of glass are sent into respectively annealing furnace, be in the same place in the softening melting of high temperature action lower seal edge strip frame and upholder and the glassy bond of annealing furnace, carry out immediately wind-cooling reinforcing, obtain having tempering or the semi-tempered glass of edge band frame and upholder; For eliminating the difference of altitude of the upholder that causes because of the glass tempering distortion, upholder is carried out mechanical workout, by cutting or grinding its top is in the same plane; Again fill low temperature glass solder between three edge band frames with lower-glass, two glass consistencies from top to bottom are stacked together, reserve certain bleed-off passage, send in the vacuum edge sealing stove; Vacuum edge sealing stove and accessory has basic heating system and local heating system; At last while vacuumizing, utilize basic heating system heating, be evacuated to that 0.1Pa is following, after basal temperature rises to 300 ℃, recycling local heating system such as far infra-red heater are heated to melt temperature more than 450 ℃ with the low temperature glass solder in the edge band frame, the edge band frame of upper glass embeds under action of gravitation between two edge band frames of lower-glass, the low temperature glass solder of melting with two glass cementations together, the upholder of upper lower-glass is in contact with one another, overlappingly be crosswise shape; Stopped heating, with stove cooling, low temperature glass solder hermetic welds together two blocks of glass, opens fire door and obtains required vacuum glass.
Upper lower-glass all has the strip upholder, the upholder vertical pile supports, upper lower-glass still is the some contact by upholder, and contact for line between upholder and the glass, increased contact area, reduced the tension stress of glass in support place, thus the quantity of upholder can be reduced, thus further improve the transparency of glass, heat insulation and sound-proofing properties; By upholder is carried out mechanical workout, eliminated the difference of altitude of the upholder that causes because of the glass tempering distortion, its top is in the same plane, guaranteed the reliability that supports.
Embodiment 5: referring to Fig. 5, three blocks of glass are toughened glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all has an edge band frame at three, its making method is as follows: at first according to the shape of made vacuum glass and two blocks of sheet glass and low emissivity glass of size cutting desired size, carry out edging, chamfering, clean, after the drying, bonding surface at three blocks of glass utilizes printing technology that cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has an edge band frame, the upper surface of intermediate glass has two edge band frame lower surfaces that an edge band frame is arranged, lower-glass has two edge band frames, the size of top edge band frame is between two following edge band frames, after upper, middle and lower glass closed sheet, top edge band frame can be embedded between two following edge band frames; Secondly will be up and down two blocks of glass pack into mould, be placed in the bending furnace, be warming up to the softening temperature of glass, rely on the gravity of glass self to make glass form convex surface downwards, the edge band frame also is in softening molten state and glassy bond together, carry out immediately wind-cooling reinforcing, obtain tempering or semi-tempered glass with the edge band frame; Intermediate glass directly advances annealing furnace, obtains tempering or semi-tempered glass with the edge band frame; The low temperature glass solder of again evenly packing between two edge band frames with intermediate glass and lower-glass, and three glass consistencies from top to bottom are stacked together, reserve bleed-off passage, send in the vacuum edge sealing stove, vacuum edge sealing stove and accessory has basic heating system and local heating system; At last vacuum edge sealing stove is vacuumized on one side, utilize basic heating system heating on one side, be evacuated to below the 0.1Pa, after basal temperature rises to 300 ℃, recycling local heating system such as far infra-red heater are heated to melt temperature more than 430 ℃ with the low temperature glass solder in the edge band frame, between the edge band frame below top edge band frame embeds under action of gravitation, the low temperature glass solder of melting with three glass cementations together, stopped heating, lower the temperature with stove, low temperature glass solder hermetic welds together three blocks of glass, opens fire door and obtains required vacuum glass.
This intellecture property of primary enforcement that all are above-mentioned is not set restriction this product innovation of other forms of enforcement and/or novel method.Those skilled in the art will utilize this important information, and foregoing is revised, to 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 only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (10)
1. the edge bonding method of a vacuum glass is characterized in that comprising:
The first step according to the shape of the vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment;
Second step, the face of weld of the glass after two processing utilizes mould printing technology and cryogenic glass powder to prepare the edge band frame, and after guaranteeing upper and lower glass alignment, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, then after drying, in High Temperature Furnaces Heating Apparatus, edge band frame and upholder are carried out high temperature sintering curing;
The 3rd step, the solder of packing between the edge band frame of the glass that second step is obtained, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to more than the melt temperature of solder, reach the edge sealing temperature; Solder is melted into liquid, and under the effect of glass self gravitation, upper and lower edge band frame is entrenched togather mutually; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required vacuum glass.
2. vacuum glass, it is characterized in that: it comprises upper glass, lower-glass, the periphery of the face of weld of described upper glass and described lower-glass all has the edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, forms the vacuum layer of a sealing between described upper glass and the described lower-glass.
3. vacuum glass as claimed in claim 2 is characterized in that described upper and lower glass is sheet glass, or convex glass.
4. vacuum glass as claimed in claim 2 is characterized in that the periphery of described upper glass face of weld has an edge band frame at least, and the periphery of described lower-glass face of weld has two edge band frames at least.
5. vacuum glass as claimed in claim 2, it is characterized in that described vacuum glass can also comprise one flat plate glass, described sheet glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described sheet glass.
6. the edge bonding method of a toughened vacuum glass is characterized in that comprising:
The first step according to the shape of the toughened vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment;
Second step, the face of weld of the glass after processing utilizes mould printing technology and cryogenic glass powder to prepare the edge band frame, and after guaranteeing upper and lower glass alignment, the edge band frame of upper glass can be embedded between the edge band frame of lower-glass, then after drying, in annealing furnace it being carried out tempering processes;
The 3rd step, the solder of packing between the edge band frame of the glass that second step is obtained, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the vacuum edge sealing stove; Described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, adopt basic heating system that described vacuum edge sealing furnace interior and upper and lower bulk glass are heated to a basal temperature first, adopt again the local heating system that local heating is carried out in the glass periphery position, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature; Solder is melted into liquid, and under the effect of glass self gravitation, upper and lower edge band frame is entrenched togather mutually; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required toughened vacuum glass.
7. toughened vacuum glass, it is characterized in that: comprise upper glass, lower-glass, described upper glass and described lower-glass are toughened glass, the periphery of the face of weld of described upper glass and described lower-glass all has the edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, forms the vacuum layer of a sealing between described upper glass and the described lower-glass.
8. toughened vacuum glass as claimed in claim 7 is characterized in that described upper and lower glass is sheet glass, or convex glass.
9. toughened vacuum glass as claimed in claim 7 is characterized in that the periphery of described upper glass face of weld has an edge band frame at least, and the periphery of described lower-glass face of weld has two edge band frames at least.
10. toughened vacuum glass as claimed in claim 7, it is characterized in that described vacuum glass can also comprise one flat plate glass, described sheet glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described sheet glass.
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| CN107542375A (en) * | 2017-09-18 | 2018-01-05 | 南昌理工学院 | A kind of curved face type vacuum glass |
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