CN102951823A - Glass solder-welded and groove-edge-sealed convex low vacuum glass and manufacturing method thereof - Google Patents
Glass solder-welded and groove-edge-sealed convex low vacuum glass and manufacturing method thereof Download PDFInfo
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- CN102951823A CN102951823A CN2012103740390A CN201210374039A CN102951823A CN 102951823 A CN102951823 A CN 102951823A CN 2012103740390 A CN2012103740390 A CN 2012103740390A CN 201210374039 A CN201210374039 A CN 201210374039A CN 102951823 A CN102951823 A CN 102951823A
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention relates to low vacuum glass. The low vacuum glass is characterized in that each of upper glass and lower glass is convex glass, an edge sealing strip frame is arranged at the welded periphery of the upper glass, an edge sealing groove is formed at the welded periphery of the lower glass, and the upper glass and the lower glass are welded together by utilizing glass solder in a high-temperature edge sealing furnace; and the manufacturing of the low vacuum glass is simpler and more convenient, and the matching of the edge sealing strip frame and the edge sealing groove can ensure a good sealing effect. The method has the advantages of simpleness in manufacturing process, low cost, high production efficiency, reliability in sealing and connecting and good sealing effect; the one-step large-batch preparation of the low vacuum glass can be realized by utilizing the technology, and the manufactured low vacuum glass is strong in resistance to wind pressure and good in heat insulation and sound insulation; and the method can be used for manufacturing the ordinary low vacuum glass and is particularly suitable for manufacturing tempered low vacuum glass.
Description
Technical field
The present invention relates to the processing and manufacturing of low latitude glass, making method of especially a kind of low latitude glass and products thereof.
Background technology
Along with the reinforcement of environmental protection and energy saving consciousness, double glazing has obtained applying widely, Effective Raise the insulation of door and window, sound insulation property.Distance between two sheet glass of double glazing, be the effect that the thickness of gas cloud has determined insulation, sound insulation, gas cloud is thicker, and then insulation and defening effect are better, but the thickness that increases gas cloud can increase the thickness of sash, thereby can increase the cost of manufacture of door and window; Other method is as adopting coated glass, pad pasting and fill the measure such as rare gas element in the middle of double glazing, though certain effect is arranged, cost is very high, is not suitable for generally using.
Existing double glazing mostly is to use the interval box with siccative to separate peripheral glasswork with organic sealant sealing in the middle of the glass more than two or two.Owing to organic seal gum self contains the reasons such as moisture, ageing resistance is relatively poor, resistance to air loss is bad, cause double glazing that failure phenomenon often occurs, had a strong impact on the work-ing life of double glazing.
Air in the double glazing gas cloud is sealed between two blocks of glass, because the variation of outside temperature, can cause the pressure of gas cloud to change, pressure was greater than normal atmosphere, glass evagination when outside temperature was high, pressure was less than normal atmosphere, glass indent when outside temperature was low, produce so-called " breathing " phenomenon, thereby affect the normal working life of double glazing.
The edge sealing of patent " convex surface low latitude glass, dull and stereotyped low latitude glass and preparation method thereof " the described low latitude glass of the present patent application people's application is by the edge band frame two blocks of glass to be welded together in high temperature edge sealing stove, its weak point is that the edge band frame needs high temperature sintering, the edge sealing groove of squeezing also needs pyroprocessing, concerning the glass that does not need tempering, not only waste energy but also easily cause glass distortion at high temperature; The etch process of edge sealing groove not only is unfavorable for workman's physical and mental health, also is unfavorable for environment protection.
Summary of the invention
Technical problem to be solved by this invention is the defective that exists for existing double glazing, a kind of novel subatmospheric double glazing---low latitude glass and preparation method thereof is provided, 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 the method can single stage method, prepare novel low latitude glass in enormous quantities, the method not only can be made common low latitude glass, is particularly suitable for making tempering low latitude glass; Prepared low latitude glass can overcome the deficiency of existing double glazing, can effectively guarantee low latitude glass resistance to air loss, increase the service life, and can gain in strength and heat insulation, sound-proofing properties.
In order to solve the problems of the technologies described above, the invention provides a kind of low latitude glass, it comprises upper glass, lower-glass, described upper glass and described lower-glass are convex glasses, described upper glass and described lower-glass are simple glass or coated glass, the periphery of described upper glass has the periphery of edge band frame, described lower-glass that the edge sealing groove is arranged, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, forms the low dead level of a sealing between described upper glass and the described lower-glass.
In order to solve the problems of the technologies described above, the invention provides the making method of a kind of low latitude glass, it comprises:
The first step according to the shape of the low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is offered the edge sealing groove at the peripheral weld of lower-glass, and two blocks of glass are up and down carried out edging, chamfering, cleaning and drying treatment;
Second step at peripheral weld spraying or the printing edge band frame of upper glass, and can be embedded in the edge sealing groove of lower-glass the edge band frame of upper glass; Then the glass after two processing is packed into mould, be placed in the bending furnace, be warming up to 550～750 ℃ of the softening temperature of glass, rely on gravity or the externally applied forces of glass self to make glass form convex surface downwards, and be down to room temperature with stove;
The 3rd step, the edge band frame of the glass that second step is obtained and edge sealing groove place prints or the spraying solder, or the solder of directly in the edge sealing groove, packing into, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the high temperature edge sealing stove;
The 4th step, described high temperature edge sealing stove is carried out heating operation, be warming up to more than the melt temperature of solder; If high temperature edge sealing stove has the local heating system, then be heated to a basal temperature by basic heating system first after, restart the local heating system; Reach the edge sealing temperature, solder is fused into liquid, and under the effect of glass self gravitation, edge band frame and edge sealing groove are entrenched togather; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening high temperature edge sealing stove obtains required low latitude glass.
In order to solve the problems of the technologies described above, the invention provides a kind of tempering low latitude glass, it comprises upper glass, lower-glass, described upper glass and described lower-glass are convex glasses, and have at least one to be tempering or semi-tempered glass, described upper glass and described lower-glass are simple glass or coated glass, the periphery of described upper glass has the edge band frame, the periphery of described lower-glass has the edge sealing groove, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, forms the low dead level of a sealing between described upper glass and the described lower-glass.
In order to solve the problems of the technologies described above, the invention provides the making method of a kind of tempering low latitude glass, it comprises:
The first step according to the shape of the low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is offered the edge sealing groove at the peripheral weld of lower-glass, and two blocks of glass are up and down carried out edging, chamfering, cleaning and drying treatment;
Second step at peripheral weld spraying or the printing edge band frame of upper glass, and can be embedded in the edge sealing groove of lower-glass the edge band frame of upper glass; Then the glass after two processing is packed into mould, be placed in the annealing furnace, be warming up to 550～750 ℃ of the softening temperature of glass, rely on gravity or the externally applied forces of glass self to make glass form convex surface downwards, and carry out immediately tempering and process;
The 3rd step, the edge band frame of the glass that second step is obtained and edge sealing groove place prints or the spraying solder, or the solder of directly in the edge sealing groove, packing into, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the high temperature edge sealing stove;
The 4th step, described high temperature edge sealing stove is carried out heating operation, be warming up to more than the melt temperature of solder; If high temperature edge sealing stove has the local heating system, then be heated to a basal temperature by basic heating system first after, restart the local heating system; Reach the edge sealing temperature, solder is fused into liquid, and under the effect of glass self gravitation, edge band frame and edge sealing groove are entrenched togather; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening high temperature edge sealing stove obtains required low latitude glass.
Wherein:
Described low dead level be at high temperature edge sealing, be down to self-assembling formation after the room temperature, the air pressure in the described low dead level is determined by the fusing point of solder, is generally 0.01 ~ 0.099MPa, is preferably 0.02 ~ 0.08MPa.
The high 0.1mm that is not less than of convex surface bow of described convex glass is preferably 0.1 ~ 200mm.
Described low latitude glass can also comprise an intermediate glass, described intermediate glass is flat glass, described intermediate glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the low dead level of two sealings with described intermediate glass.
High 0.1～the 200mm that is preferably of convex surface bow of upper and lower two blocks of convex glasses of described low latitude glass, more preferably 1～20mm is advisable not protrude from outside the sash during as windowpane.
It is high that described upper and lower glass can have an identical bow, also can have according to actual needs different bows high.
The convex surface bow of described convex surface low latitude glass high shape and size and purposes decision by glass, under the prerequisite that satisfies opposing normal atmosphere and purposes, bow is high as small as possible, be advisable with 3 ~ 9mm when being used for the common door window glass, the space that 6 ~ 18mm is namely arranged between two blocks of glass, be equivalent to existing double glazing, under atmospheric pressure almost plane is best, to obtain preferably visual effect and to reduce the cost of described low latitude glass and the space that takies.
Because tempering and semi-tempered glass have higher intensity, so under identical shape and size, the convex surface of tempering or half tempered convex glass bow is high can be less, tempering or half tempered convex glass can be more flat.Owing to utilizing forming mould with upper and lower mould, glass clamp is relied on the moulding of exerting pressure between upper and lower mould, so convex glass has more regular shape, and prevent distortion in toughening process, so edge sealing is simpler, sealing property and intensity are also higher.
In the described low dead level, when high large, the convex shape that can rely on glass self of less or convex surface bow and intensity opposing normal atmosphere, can not establish upholder when the planar dimension of upper and lower glass; When upper and lower glass can not rely on the convex shape of self and during intensity opposing normal atmosphere, the upholder of a small amount of necessity should be set, upholder is resisted normal atmosphere jointly with glass.
Do not had stopping of upholder, transparency and the visibility of convex surface low latitude glass are better; Do not had the conduction of upholder, the heat insulation and sound-proofing properties of convex surface low latitude glass is better.
Above support is made by low temperature glass, metal, pottery, glass or plastics, the preferred commercially available cryogenic glass powder of printing or the low temperature glass solder of adopting prepares, the temperature of fusion of described cryogenic glass powder is 550 ~ 750 ℃, and the temperature of fusion of described low temperature glass solder is 350 ~ 550 ℃.
Above support be printed on one on glass, or be printed on two on glass, preferably be printed on two on glass.
Above support is column, or is strip; When upholder 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.
Above support can be that minimum unit is the dot matrix arrangement of equilateral triangle, and the leg-of-mutton length of side is about 50～500mm, is preferably 100～300mm; When 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 0.2～3.0mm, the height of upholder can be higher than the edge band frame height 0～2.0mm, be preferably 0.1～0.5mm; When upholder is cylindric, its diameter is 0.1～3.0mm, be preferably 0.3～2.0mm, be 0.1～5.0 mm highly, be preferably 0.2～3.0mm, 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 can be higher than.
When described upper and lower glass all has the strip upholder, the upholder vertical pile supports, upholder is in the molten sintering process, the top becomes circle, the bottom broadens, and the top of upper lower-glass by upholder still is the some contact when connecting, and contacts for line or face 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.
Described mode of printing comprises the modes such as mould printing, silk screen printing and printer printing; Described mode of printing comprises hardboard (net) printing and soft board (net) printing, and described hardboard (net) mainly is plate, the net that metallic substance is made, and described soft board (net) mainly is plate, the net that organic materials is made.
Above support can be printed before glass bending or behind the hot bending, preferably adopt hardboard (net) to print when printing behind the hot bending, hardboard (net) printing can make the top of upholder be on the plane, the impact on the glass planeness that brings to eliminate the glass bending distortion; When above support was printed behind glass bending, preferred low temperature glass solder was made.
Described edge band frame is made by printing or the mode such as spraying, preferably adopts the silk screen printing cryogenic glass powder to make, and it is 550 ~ 750 ℃ glass glaze that described cryogenic glass powder is preferably commercially available melt temperature; When described edge band frame prepares, can be once to finish, also can be repeatedly to finish.
Described mode of printing is to adopt silk screen printing or the methods such as mould printing or printer, and cryogenic glass powder is imprinted on the fin that formation on glass is raised in glass surface.
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.
Can leave several venting 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 50～500mm is advisable, and can seal described venting hole after described solder fusing; Also can not stay venting hole, the formed space, rough surface of the solder that utilization applies or the hole of Powdered solder can shorten evacuation time as the exhaust-duct but leave venting hole.
The periphery of described upper glass contains an edge band frame at least, and the periphery of described lower-glass contains an edge sealing groove at least, and described edge band frame is inserted in the edge sealing groove.
The degree of depth of described edge sealing groove is preferably 0.05～10mm, 0.1～2mm more preferably, and width is preferably 0.3～10mm, more preferably 2～6mm.
The cross section of described edge sealing groove can be arbitrary shape, preferred circular arc.
Described edge sealing groove is formed by mechanical workout or laser processing, the preferred mechanical processing mode.
Described mechanical workout mode is to utilize mechanical mill, mechanical cutting, machine the groove that is depressed in surface of plate glass that forms Arbitrary Shape Cross Section at sheet glass such as to mill.
Described laser processing mode is to utilize the equipment such as laser gun, laser attenuate machine, laser engraving machine to form the groove that is depressed in surface of plate glass of Arbitrary Shape Cross Section at sheet glass.
Wherein, when the edge band frame of described upper glass during more than, described lower-glass contains an edge sealing groove at least, when described lower-glass contains two edge sealing grooves at least, the edge band frame of described upper glass is inserted in the edge sealing groove of corresponding described lower-glass, on described, edge band frame and the edge sealing groove of lower-glass are entrenched togather mutually, low dead level is carried out labyrinth seal, described edge sealing groove is when the upper surface of the intermediate glass of the low latitude glass with two low dead levels, identical with described lower-glass, described edge band frame when the lower surface of described intermediate glass, identical with described upper glass.
Described upper glass, the material of lower-glass and intermediate glass is simple glass, or toughened glass, or semi-tempered glass, or low emissivity glass, or chilled glass (comprising physical strengthening and chemical enhanced), or heat-reflecting 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 tempering or semi-tempered glass, chilled glass and low emissivity glass further are preferably the combination of tempering or semi-tempered glass and low radiation tempering or semi-tempered glass, the combination of tempering or semi-tempered glass and low radiation chilled glass, the combination of tempering or semi-tempered glass and low emissivity glass.
Wherein, described high temperature edge sealing stove is normal reheating furnace, by the electric heating element heat temperature raising, comprises batch kiln and continuous furnace.
Wherein, described high temperature edge sealing stove is low latitude glass of a sealing-in at every turn, also can sealing-in polylith low latitude glass, namely realize the mass production of low latitude glass.
When the preparation be toughened glass the time, for solving the problem of annealing because welding temperature is too high, high temperature edge sealing stove can have 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., or the mode that adopts circulating air to heat, with high temperature edge sealing furnace interior and glass heats to a basal temperature; The modes such as recycling local heating system such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating are that local heating is carried out in the edge sealing position to the periphery of glass, reach the purpose that at short notice solder is heated to melting.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of described local heating temperature is preferably 380～470 ℃.
Because high temperature 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 low latitude glass.
The invention has the beneficial effects as follows:
The convex shape that the upper glass of convex surface of the present invention low latitude glass and lower-glass utilize glass is resisted normal atmosphere, makes two blocks of glass can not press together, keep low dead level between two glass, has saved the very large upholder of making and installation difficulty; Do not had stopping of upholder, transparency and the visibility of low latitude glass are better; Do not had the conduction of upholder, the heat insulation and sound-proofing properties of low latitude glass is better; Convex configuration makes glass that higher ultimate compression strength and bending strength be arranged, and the resisting wind press capacity of low latitude glass is better; Convex configuration makes low dead level that larger space be arranged, and more can keep for a long time the life-span of subatmospheric state, low latitude glass longer, even lose subatmospheric, its performance also is better than general double glazing.
The periphery of low latitude of the present invention its upper glass of glass has the edge band frame, the periphery of lower-glass has the edge sealing groove, so that the edge sealing of low latitude glass is easier, more reliable, even the chimeric of edge band frame and edge sealing groove guaranteed low latitude glass in the situation that the sealing effectiveness of glass deformation, have the bonding strength higher than low temperature welding glass between edge band frame and the upper glass, chimeric sealing surface area and the airtight layer thickness that has increased between the upper lower-glass of edge band frame and edge sealing groove, solve existing low latitude glass edge and sealed uneven problem, sticking power and the adhesion strength of sealing-in have greatly been strengthened, on having increased, the tightness of low dead level between the lower-glass, improved the life-span of low latitude glass, and can realize that the single stage method mass prepares low latitude glass and tempering low latitude glass, promote the suitability for industrialized production of low latitude glass and tempering low latitude glass, greatly improved productivity and the qualification rate of low latitude glass, reduced the production cost of low latitude glass.The edge band frame of upper glass embeds in the edge sealing groove of lower-glass, guarantee that not only the edge band frame has sufficiently high sealing height, and guaranteed that enough little low latitude layer thickness is arranged between the upper lower-glass, make height and the diameter of upholder can be arbitrarily small, satisfy low latitude glass in the requirement of the aspects such as transparency, visuality, heat-proof quality, sound-proofing properties; The edge band frame of upper glass embeds in the edge sealing groove of lower-glass, the height change that not only can automatically adapt to upholder, and can automatically eliminate the impact of the distortion that lower-glass at high temperature causes, height that can also be by design edge band frame and the degree of depth of edge sealing groove be the thickness of the low dead level of control accurately; The edge sealing groove is cold working, does not need pyroprocessing, has not only saved the energy but also prevented glass distortion at high temperature; When making Low-E low latitude glass, the edge sealing groove is opened in the surface at Low-E film place, can effectively eliminate the Low-E film to the impact of welding; When grinding off the Low-E film of glass weld, offer in passing the edge sealing groove in other words, with preparation edge band frame simplified in comparison technique; After solder melts, upper lower-glass auto-closing together, abundant scolder band has guaranteed the reliability of sealing, thereby further simplifies production technique, boosts productivity and lower production cost.
The mode of employing automatic edge sealing in high temperature edge sealing stove has been simplified technological process, has lowered production cost, has shortened the production cycle, has been improved production efficiency, realizes low latitude glass especially single stage method, the mass production of tempering or half tempered low latitude glass.
Low latitude prepared by this method glass and tempering or half tempered low latitude glass, good seal performance not only, and can suitability for industrialized production, the productivity of low latitude glass and greatly raising of qualification rate, production cost and selling price are significantly reduced.
Description of drawings
Fig. 1 is convex surface of the present invention low latitude glass structure schematic diagram;
Fig. 2 is the convex surface low latitude glass structure schematic diagram with single upholder of the present invention;
Fig. 3 is the convex surface low latitude glass structure schematic diagram with dual-gripper thing of the present invention;
Fig. 4 is the convex surface low latitude glass structure schematic diagram of two low dead levels of the present invention.
Among the figure: 1. upper glass, 2. lower-glass, 3. solder, 4. edge band frame, 5. edge sealing groove, 6. upholder, 7. intermediate glass.
Embodiment
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, low latitude glass is comprised of two blocks of glass up and down, wherein one is low emissivity glass, its making method is as follows: at first according to the shape of made low latitude glass and one flat plate glass and low emissivity glass of size cutting desired size, peripheral weld at lower-glass is offered the edge sealing groove, and carry out edging, chamfering and cleaning, drying, utilize polyester net that cryogenic glass powder cream is printed to the edge band frame at upper glass; Wherein upper glass has two edge band frames, lower-glass that two edge sealing grooves are arranged, and after upper lower-glass closed sheet, the edge band frame of upper glass can embed in the edge sealing groove of lower-glass; Secondly two blocks of glass are packed into mould, be placed in the bending furnace, be warming up to softening temperature 550-750 ℃ of glass, rely on the gravity of glass self to make glass form convex surface downwards, and be down to room temperature with stove; If edge band frame shape in sintering process changes, can make it smooth by mode such as turning, the grinding etc. of mechanical workout; Again fill low temperature glass solder in the edge sealing groove with lower-glass, two glass consistencies from top to bottom are stacked together, and leave the exhaust-duct, send in the high temperature edge sealing stove; Carry out at last heating operation, the melt temperature that is warming up to low temperature glass solder is above such as 420 ℃, the low temperature glass solder fusing, the edge band frame of upper glass embeds under action of gravitation in the edge sealing groove of lower-glass, and the low temperature glass solder of melting is with two glass cementations together; Stopped heating, with stove cooling, low temperature glass solder hermetic welds together two blocks of glass, opens fire door and obtains required low latitude glass.
The introducing of edge band frame and edge sealing groove 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 glass more reliably bonding is arranged, surface irregularity, have more firmly with solder and to be combined, thereby improve resistance to air loss and the reliability of low latitude glass.In addition, the edge band frame also is the key that single stage method prepares low latitude glass.
Edge band frame behind the sintering is carried out mechanical workout can be solved the edge band frame affect problem attractive in appearance or that use because of the variation of volume and shape in the sintering curing process.
Embodiment 2: referring to Fig. 2, one is low emissivity glass in two blocks of glass of low latitude glass, another piece is toughened glass or semi-tempered glass, its making method is as follows: at first according to the shape of made low latitude glass and one flat plate glass and low emissivity glass of size cutting desired size, peripheral weld at lower-glass is offered the edge sealing groove, and carry out edging, chamfering and cleaning, dry, utilize spray gun that cryogenic glass powder cream is sprayed on and make the edge band frame on the upper glass, wherein upper glass has an edge band frame, lower-glass has an edge sealing groove, after upper lower-glass closed sheet, the edge band frame of upper glass can be embedded in the edge sealing groove of lower-glass; Secondly upper glass is 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, and be down to room temperature or be chilled to room temperature with stove and make it strengthen, obtain having the upper glass of edge band frame; With lower-glass pack into mould, send in the annealing furnace, high temperature action lower-glass 650 ~ 750 ℃ of annealing furnaces is softening, the pressure that dependence is applied on the mold makes glass rely on upper/lower die to form convex surface downwards, carries out immediately wind-cooling reinforcing, obtains tempering or semi-tempered glass; Adopt low temperature glass solder to utilize the woven wire of tensioning or expanded metal lath to print upholder at upper or lower-glass, make the top of upholder in one plane, to eliminate glass deformation to the impact of planeness, upholder is the circular or oval dot matrix arrangement that adapts with convex surface, can prepare several times, to adapt to the spatial variations of convex surface; Upholder is cylindric, and its height is a little more than the height of low dead level of living in; Again low temperature glass solder will be coated with evenly in the edge sealing groove of lower-glass, evenly leave several venting holes on the low temperature glass solder, and two glass consistencies from top to bottom are stacked together, to send in the high temperature edge sealing stove, high temperature edge sealing stove and accessory has basic heating system and local heating system; Carry out at last heating operation, utilize first basic heating system such as electrical heating wire to heat, basal temperature is risen to more than 300 ℃, recycling local heating system such as infrared heater are heated to melt temperature more than 450 ℃ with low temperature glass solder, venting hole disappears, and the low temperature glass solder of melting with two glass cementations together; Stopped heating, with stove cooling, low temperature glass solder hermetic welds together two blocks of glass, upholder also is integral with glass sintering up and down, opens fire door and obtains required low latitude glass.
Use low temperature glass solder to make upholder, can soften in the edge sealing process, solidify, upholder is printed on the upper glass, can adapt to well the variation of low latitude layer height under action of gravitation, guarantees upper lower-glass is connected as a single entity; Upholder is printed on the lower-glass, utilizes its slightly high height and can soften in the edge sealing process, also can guarantee upper lower-glass is connected as a single entity, and lower-glass is effectively supported; Utilize hard net (plate) to print upholder, glass that can the Automatic Levelling distortion guarantees the reliability that supports.
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 and edge sealing groove are 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 the hot bending process, thereby improve the qualification rate of product.
Because high temperature 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 low latitude glass.
Embodiment 3: referring to Fig. 3, two blocks of glass of low latitude glass are toughened glass or semi-tempered glass, wherein one or low emissivity glass, its making method is as follows: at first according to the shape of made low latitude glass and one flat plate glass and low emissivity glass of size cutting desired size, peripheral weld at lower-glass is offered the edge sealing groove, and carry out edging, chamfering and cleaning, dry, utilize nylon mesh that cryogenic glass powder cream is printed to the edge band frame at upper glass, wherein upper glass has an edge band frame, lower-glass has an edge sealing groove, after upper lower-glass closed sheet, the edge band frame of upper glass can be embedded in the edge sealing groove of lower-glass; Secondly two blocks of glass are respectively charged in two forming moulds, this forming mould has mold and bed die, and glass clamp and can be exerted pressure and makes upper and lower mould closed between mold and bed die, thereby makes glass form convex surface; The forming mould that glass is housed is placed in the annealing furnace, is warming up to the softening temperature of glass, rely on the pressure that puts on the forming mould to make the glass in the forming mould form convex surface, remove immediately the mold cold tempering of sector-style of going forward side by side, obtain tempering or semi-tempered glass; Utilize the woven wire of tensioning or expanded metal lath to print upholder at employing low temperature glass solder on glass up and down, make the top of upholder in one plane, to eliminate glass deformation to the impact of planeness, upholder is that minimum unit is the dot matrix arrangement of equilateral triangle, upholder is strip, 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 the edge band frame with lower-glass, two glass consistencies from top to bottom are stacked together, reserve certain exhaust-duct, send in the high temperature edge sealing stove, again low temperature glass solder will be coated with evenly in the edge sealing groove of lower-glass, evenly leave several venting holes on the low temperature glass solder, and two glass consistencies from top to bottom are stacked together, to send in the high temperature edge sealing stove, high temperature edge sealing stove and accessory has basic heating system and local heating system; Carry out at last heating operation, utilize first basic heating system such as electric heater for heating, basal temperature is risen to more than 320 ℃, recycling local heating system such as far infra-red heater are heated to melt temperature more than 430 ℃ with low temperature glass solder, venting hole disappears, the low temperature glass solder of melting with two glass cementations together, the upholder of upper lower-glass is softening to be 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, up and down upholder and up and down vitrification be integral, open fire door and obtain required low latitude 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 or face 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.
Adopt the double layer support thing not only can make upholder that larger height space is arranged, and can be simultaneously the planeness of two blocks of glass be up and down proofreaied and correct, more be conducive to obtain high planeness, make lower-glass obtain supporting more reliably.
Embodiment 4: referring to Fig. 4, the upper lower-glass of low latitude glass is toughened glass or semi-tempered glass, intermediate glass is low emissivity glass, its making method is as follows: at first according to the shape of made low latitude glass and two blocks of sheet glass and low emissivity glass of size cutting desired size, upper surface periphery weld at intermediate glass and lower-glass is offered the edge sealing groove, and carry out edging, chamfering and cleaning, dry, lower surface periphery at upper glass and intermediate glass utilizes spray gun that cryogenic glass powder cream is made the edge band frame, wherein upper glass has an edge band frame, the upper surface of intermediate glass has an edge band frame lower surface that an edge sealing groove is arranged, lower-glass has an edge sealing groove, the size of top edge band frame is in following edge sealing groove, after upper, middle and lower glass closed sheet, top edge band frame can be embedded in the following edge sealing groove; Secondly two blocks of glass are respectively charged in two forming moulds up and down, glass clamp is between mold and bed die, the forming mould that glass is housed is placed in the annealing furnace, be warming up to the softening temperature of glass, the pressure that dependence puts on the forming mould makes the glass in the forming mould form convex surface, remove immediately the mold cold tempering of sector-style of going forward side by side, obtain tempering or semi-tempered glass; Intermediate glass directly advances High Temperature Furnaces Heating Apparatus, with edge band frame sintering on intermediate glass; The low temperature glass solder of again evenly packing in the edge sealing groove with intermediate glass and lower-glass, and three glass consistencies from top to bottom are stacked together, keep certain exhaust-duct, send in the high temperature edge sealing stove, high temperature edge sealing stove and accessory has basic heating system and local heating system; Carry out at last heating operation, utilize first basic heating system such as circulating air to heat, basal temperature is risen to more than 320 ℃, and recycling local heating system such as electrothermal tube are heated to melt temperature more than 450 ℃ with low temperature glass solder, and the low temperature glass solder of melting with glass cementation together; Stopped heating, with stove cooling, low temperature glass solder hermetic welds together three blocks of glass, opens fire door and obtains required low latitude 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. low latitude glass, it is characterized in that comprising upper glass, lower-glass, described upper glass and described lower-glass are convex glasses, the periphery of described upper glass has the periphery of edge band frame, described lower-glass that the edge sealing groove is arranged, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, forms the low dead level of a sealing between described upper glass and the described lower-glass.
2. low latitude according to claim 1 glass, it is characterized in that described low latitude glass also comprises an intermediate glass, described intermediate glass is flat glass, described intermediate glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the low dead level of two sealings with described intermediate glass.
3. low latitude according to claim 1 and 2 glass is characterized in that described upper glass and described lower-glass or/and described intermediate glass has at least one to be tempering or semi-tempered glass.
4. according to claim 1 to 3 each described low latitude glass, it is characterized in that the periphery of described upper glass face of weld has an edge band frame at least, the periphery of described lower-glass face of weld has an edge sealing groove at least.
5. according to claim 1 to 4 each described low latitude glass, it is characterized in that described edge band frame adopts cryogenic glass powder to make by the mode of printing or spraying.
6. according to claim 1 to 4 each described low latitude glass, it is characterized in that described edge sealing groove adopts the mode of mechanical workout or laser processing to make.
7. according to claim 1 to 6 each described low latitude glass, it is characterized in that in the described low dead level upholder being arranged, above support has one deck or two-layer.
8. low latitude according to claim 7 glass is characterized in that above support adopts low temperature glass solder to use hard reticulated printing to make.
9. according to claim 1 to 8 each described low latitude glass, it is characterized in that described edge band frame or/and upholder carries out mechanical workout after curing.
10. the making method of a low latitude glass, it comprises:
The first step according to the shape of the low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is offered the edge sealing groove at the peripheral weld of lower-glass, and two blocks of glass are up and down carried out edging, chamfering, cleaning and drying treatment;
Second step, peripheral weld spraying or printing edge band frame at upper glass, and the edge band frame that makes upper glass can be embedded in the edge sealing groove of lower-glass, then the glass after two processing is packed into mould, be placed in bending furnace or the annealing furnace, be warming up to 550～750 ℃ of the softening temperature of glass, rely on gravity or the externally applied forces of glass self to make glass form convex surface downwards, and be down to room temperature or carry out the tempering processing with stove;
The 3rd step, the edge band frame of the glass that second step is obtained and edge sealing groove place prints or the spraying solder, or the solder of directly in the edge sealing groove, packing into, and described two glass consistencies from top to bottom are stacked together, leave the exhaust-duct between two glass, then send in the high temperature edge sealing stove;
The 4th step, described high temperature edge sealing stove is carried out heating operation, be warming up to more than the melt temperature of solder; If high temperature edge sealing stove has the local heating system, then be heated to a basal temperature by basic heating system first after, restart the local heating system; Reach the edge sealing temperature, solder is fused into liquid, and under the effect of glass self gravitation, the edge band frame is entrenched togather mutually up and down; Stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening high temperature edge sealing stove obtains required low latitude glass.
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| CN2012103740390A CN102951823A (en) | 2012-10-06 | 2012-10-06 | Glass solder-welded and groove-edge-sealed convex low vacuum glass and manufacturing method thereof |
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| CN2012103740390A CN102951823A (en) | 2012-10-06 | 2012-10-06 | Glass solder-welded and groove-edge-sealed convex low vacuum glass and manufacturing method thereof |
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| CN104291568A (en) * | 2013-07-17 | 2015-01-21 | 戴长虹 | Planar dual-low-pressure-hollow-layer glass provided with sealing grooves and mounting holes and manufacturing method thereof |
| CN104291613A (en) * | 2013-07-17 | 2015-01-21 | 戴长虹 | Glass-welded convex vacuum glass provided with sealing strips, sealing grooves and mounting holes |
| CN104291659A (en) * | 2013-07-17 | 2015-01-21 | 戴长虹 | Convex low-pressure glass having sealing groove and mounting hole and manufacturing method thereof |
| CN110318477A (en) * | 2018-03-28 | 2019-10-11 | 许浒 | A kind of inorganic vacuum heat-preserving board manufacturing method and a kind of inorganic vacuum heat-insulation plate |
| CN110318474A (en) * | 2018-03-28 | 2019-10-11 | 许浒 | A kind of inorganic vacuum heat-preserving board manufacturing method and a kind of inorganic vacuum heat-insulation plate |
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| CN102701575A (en) * | 2012-03-21 | 2012-10-03 | 戴长虹 | Convex vacuum glass, flat plate vacuum glass and preparation method thereof |
| CN102951786A (en) * | 2012-03-21 | 2013-03-06 | 戴长虹 | Convex low-vacuum glass welded by glass and manufacturing method thereof |
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| CN2289790Y (en) * | 1997-04-04 | 1998-09-02 | 刘兴海 | Hollow windshield for vehicle |
| CN102701575A (en) * | 2012-03-21 | 2012-10-03 | 戴长虹 | Convex vacuum glass, flat plate vacuum glass and preparation method thereof |
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Cited By (5)
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| CN104291568A (en) * | 2013-07-17 | 2015-01-21 | 戴长虹 | Planar dual-low-pressure-hollow-layer glass provided with sealing grooves and mounting holes and manufacturing method thereof |
| CN104291613A (en) * | 2013-07-17 | 2015-01-21 | 戴长虹 | Glass-welded convex vacuum glass provided with sealing strips, sealing grooves and mounting holes |
| CN104291659A (en) * | 2013-07-17 | 2015-01-21 | 戴长虹 | Convex low-pressure glass having sealing groove and mounting hole and manufacturing method thereof |
| CN110318477A (en) * | 2018-03-28 | 2019-10-11 | 许浒 | A kind of inorganic vacuum heat-preserving board manufacturing method and a kind of inorganic vacuum heat-insulation plate |
| CN110318474A (en) * | 2018-03-28 | 2019-10-11 | 许浒 | A kind of inorganic vacuum heat-preserving board manufacturing method and a kind of inorganic vacuum heat-insulation plate |
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