CN102951792A - Micro convex-surface low-pressure air glass and preparation method thereof - Google Patents
Micro convex-surface low-pressure air glass and preparation method thereof Download PDFInfo
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- CN102951792A CN102951792A CN2012100756132A CN201210075613A CN102951792A CN 102951792 A CN102951792 A CN 102951792A CN 2012100756132 A CN2012100756132 A CN 2012100756132A CN 201210075613 A CN201210075613 A CN 201210075613A CN 102951792 A CN102951792 A CN 102951792A
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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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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
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Abstract
The invention provides micro convex-surface low-pressure air glass which comprises upper glass and lower glass, wherein the peripheries of the upper glass and lower glass are welded together by low-temperature solder; a closed low-pressure air layer is formed between the upper glass and the lower glass; the upper glass and the lower glass are convex-surface glass; the arc bending of the convex-surface glass is not greater than 0.3%; and the convex surface faces to the outer side. A preparation method of the low-pressure air glass provided by the invention is simple in technology; and the prepared low-pressure air glass and toughened low-pressure air glass can overcome the shortcomings of the prior art, effectively guarantee the air tightness of the low-pressure air glass, and enhance the strength as well as the heat insulation and sound insulation performance.
Description
Technical field
The present invention relates to the glass processing technical field, relate in particular to a kind of low latitude glass and preparation method 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.
Summary of the invention
Technical problem to be solved by this invention is the defective that is for existing double glazing existence, a kind of novel subatmospheric double glazing is provided---low latitude glass, tempering low latitude glass and preparation method thereof, the making method technique of this low latitude glass is simple, prepared low latitude glass and tempering low latitude glass can overcome deficiency of the prior art, can effectively guarantee the resistance to air loss of low latitude glass, and can gain in strength and heat insulation and sound-proofing properties.
In order to solve the problems of the technologies described above, the invention provides a kind of dimpling face low latitude 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, form the low dead level of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, the bow camber degree of described convex glass is not more than 0.3%, and convex surface toward the outer side.
Wherein, the bow camber degree of described convex glass, namely the high ratio with chord length of convex surface bow is preferably 0.1 ~ 0.3%.
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 ~ 0.09MPa, is preferably 0.02 ~ 0.07MPa.
Wherein, the bow camber degree of described convex glass meets the standard of sheet glass, and described convex glass belongs to sheet glass.
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 comprises commercially available low temperature glass solder and low melting point metal or solder, the preferred melt temperature of described solder is about 450 ℃ crown glass scolder, the preferred tin of described low melting point metal or solder or tin alloy, zinc or zinc alloy, magnesium or magnesium alloy, its shape or form are paste, Powdered, thread or paper tinsel shape.
Wherein, described convex surface low latitude glass can also comprise one flat plate glass, described sheet glass is clipped between described upper glass and the described lower-glass, described upper glass and described lower-glass form respectively the low dead level of two sealings with described sheet glass, the lower surface of the periphery of described sheet glass contains an edge band frame at least, and upper surface contains two edge band frames at least.
In order to solve the problems of the technologies described above, the invention provides the preparation method of above-mentioned convex surface low latitude glass, it comprises:
The first step according to the shape of the convex surface low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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, and be down to room temperature with stove;
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 high temperature edge sealing stove;
The 4th step was warming up to described high temperature edge sealing stove more than the melt temperature of solder, reached 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 high temperature edge sealing stove obtains required convex surface low latitude glass.
In order to solve the problems of the technologies described above, the invention provides the preparation method of above-mentioned convex surface low latitude glass, when described convex surface low latitude glass was convex surface tempering low latitude glass, the preparation method was as follows,
The first step according to the shape of the convex surface low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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, carry out subsequently wind-cooling reinforcing;
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 high temperature edge sealing stove; Described high temperature 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, adopt first basic heating system that described high temperature edge sealing furnace interior and upper and lower bulk glass are heated to a basal temperature, 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 high temperature edge sealing stove obtains required convex surface low latitude glass.
Beneficial effect of the present invention:
Low latitude of the present invention glass is a kind of novel glass between double glazing and vacuum glass, utilizes high temperature edge sealing sealing, is down to after the room temperature and automatically forms the subatmospheric gas cloud between the upper and lower glass.Compare with double glazing, replace organic adhesive and normal temperature edge sealing with inorganic scolder and high temperature edge sealing, greatly improved sealing property and prolonged work-ing life; The air rarefaction of low dead level, water molecules and oxygen equal size are lower, not only can not haze, frosting, and the oxidation that has alleviated low-radiation film, thin air also make heat insulation and sound-proofing properties better; The air pressure of low dead level is all the time less than normal atmosphere, so there is not " breathing " phenomenon.Compare with existing vacuum glass, do not need to vacuumize, few with or without upholder, production technique is more simple, cost is lower, the pressure that bears in the glass use procedure is less, longer service life.
Low latitude of the present invention is on glass, lower-glass is convex glass, because glass itself has very high ultimate compression strength, resist normal atmosphere so rely on the shape of convex glass, can not put or put less upholder, not only simplify low latitude glass manufacture craft, reduce production costs, so that the production of low latitude glass is more easy, and can improve intensity and heat insulation, sound insulation and the resisting wind press capacity of low latitude glass.The low latitude is on glass, the periphery of lower-glass contains the edge band frame, so that the edge sealing of low latitude 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 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, 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, realized 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.
Description of drawings
Fig. 1 is the convex surface low latitude glass structure schematic diagram with a low dead level of the present invention;
Fig. 2 is the convex surface low latitude glass structure schematic diagram with two low dead levels of the present invention.
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, 6. intermediate glass.
Embodiment
The invention provides a kind of dimpling face low latitude 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, form the low dead level of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, and the bow camber degree of described convex glass is not more than 0.3%, and convex surface toward the outer side.
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 ~ 0.09MPa, is preferably 0.02 ~ 0.07MPa.
Described convex surface low latitude 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 low dead level of two sealings with described sheet glass.
Described convex surface low latitude glass may further include polylith sheet glass, thereby comprises the low dead level of a plurality of sealings.
The convex shape that the upper glass of convex surface 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 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 low dummy status, low latitude glass longer.
The bow camber degree of upper and lower two blocks of convex glasses of described low latitude glass is not more than 0.3%, is preferably 0.1 ~ 0.3%.
It is high that described upper and lower glass can have an identical bow, also can have different bows high according to the difference of width inside and outside the sash.
Described upper and lower glass is prepared from by sheet glass, and its preparation method further comprises: utilize mould by the gravity of glass self or the pressure that adds sheet glass to be prepared into convex glass in bending furnace.
Described preparation method further comprises:
The first step, shape and size according to the convex surface low latitude glass of required making are cut two blocks of sheet glass of required size, carry out edging, chamfering, clean, drying treatment, and utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, two blocks of sheet glass after processing are respectively charged into forming mould, put into bending furnace, be warming up to glass transition temperature, rely on the gravity of glass self or the pressure that adds to make glass form convex surface downwards, subsequently furnace temperature is down to room temperature, namely obtains to be shaped as the upper and lower glass of convex glass.
Be toughened glass if obtain the material of upper and lower glass, in described second step, two blocks of sheet glass after processing are respectively charged into forming mould, put into bending furnace, be warming up to glass transition temperature, rely on the gravity of glass self to make glass form convex surface downwards, carry out subsequently wind-cooling reinforcing, namely acquisition is shaped as convex glass, material is the upper and lower glass of toughened glass.
Described glass transition temperature is preferably 550 ℃～750 ℃.
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, 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.
Described solder comprises commercially available low temperature glass solder and low melting point metal or solder, the preferred melt temperature of described solder is about 450 ℃ crown glass scolder, the preferred tin of described low melting point metal or solder or tin alloy, zinc or zinc alloy, magnesium or magnesium alloy.
The formation of the low latitude glass of described single low dead level adopts single stage method to form, and described single stage method is directly to finish at high temperature edge sealing furnace high-temperature edge sealing, and can carry out batch processing to low latitude glass.
Described single stage method further comprises the steps:
The solder of packing between two edge band frames with lower-glass, 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; High temperature edge sealing stove heating made temperature rises to more than the melt temperature of solder in the stove, 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 reduces furnace temperature to room temperature, and described solder welds together upper and lower glass is bubble-tight, thereby obtains needed convex surface low latitude glass.
It is as follows that the single stage method of described two low dead level convex surface low latitude glass forms step:
The solder of packing in the middle of two edge band frames with lower convex glass and middle sheet glass face of weld, and three glass consistencies from top to bottom are stacked together, leave in twos the exhaust-duct between the glass, then send in the high temperature edge sealing stove; High temperature edge sealing stove heating made temperature rises to more than the melt temperature of solder in the stove, 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 three blocks of glass, opens fire door and obtains required convex surface low latitude glass.
Described edge sealing temperature is preferably 150～550 ℃, further is preferably 290～350 ℃ when adopting low melting point metal or solder; Further be preferably 380～470 ℃ when adopting low temperature glass solder, the preferred temperature of fusion of described low temperature glass solder is about 450 ℃ crown glass scolder.
Described high temperature edge sealing stove or the single-unit furnace of batch production, or the tunnel kiln of continous way production, preferred tunnel kiln.
Atmosphere or air in the described high temperature edge sealing stove, or the neutral atmospheres such as nitrogen, argon gas, preferred argon gas.
When the atmosphere in the high temperature edge sealing stove is neutral atmosphere, by transmission and the exchange of gas under the high temperature, can reduces moisture and oxygen content in the low dead level of low latitude glass, thereby further improve the performance of low latitude glass.
When preparation be toughened glass the time, preferentially select low melting point metal or solder, such as tin or tin alloy, zinc or zinc alloy, magnesium or magnesium alloy etc., to select lower edge sealing temperature.
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., with high temperature edge sealing furnace interior and glass heats to a basal temperature; The modes such as recycling 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 melt temperature is preferably 380～470 ℃.
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.
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.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 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 shape and size of described low latitude glass are being satisfied under the prerequisite of service requirements by the purposes decision of low latitude glass, and its shape is preferably square or circular.
Have an edge band frame in the described upper glass at least, have two edge band frames in the described lower-glass 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 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 50～150mm is advisable, and can seal described venting hole after described solder fusing; Also can not stay venting hole, utilize the formed space, rough surface of solder as the passage of high-temperature exhaust air, but leave the time that venting hole can shorten high-temperature exhaust air.
When containing two and a plurality of edge band frame, described solder is in centre or centre and the outside 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 low dead levels, 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 middle of the edge band frame of described lower-glass, on described, the edge band frame of lower-glass is entrenched togather mutually, low dead level is carried out labyrinth seal, described edge band frame is when the upper surface of the middle sheet glass of the convex glass with two low dead levels, identical with described lower-glass, when the lower surface of described sheet glass, identical with described upper glass.
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 solder and to be combined, thereby improve resistance to air loss and the reliability of low latitude glass.
Adopt the edge band frame, can be easy to utilize low melting point metal or alloy to realize the solder bonding metal of low latitude glass, because the selectable scope of brazing temperature is very large, so not only can wholely heat glass, reduce the cost of process furnace and simplify production technique, and can decrease edge sealing temperature, shorten heat-up time, thereby reduce production costs, enhance productivity, the more important thing is to guarantee tempering or the semi-tempered glass phenomenon of in heat-processed, can not annealing.
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 mould 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 described edge band frame adopts the mould printing cryogenic glass powder to prepare, can be one-step print, also can be repeatedly to print.
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.
When preparation be tempering low latitude glass, the problem of annealing because welding temperature is too high when solving tempering low latitude glazing gasket can adopt low melting point metal or solder.
Described low melting point metal or solder can be tin or tin alloy, zinc or zinc alloy, aluminum or aluminum alloy, magnesium or magnesium alloy etc.
The present invention also provides a kind of convex surface low latitude glass, it comprises: upper glass, lower-glass, the periphery 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, form the low dead level of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, and the bow camber degree of described convex glass is not more than 0.3%, and convex surface toward the outer side.
The preparation method of the convex surface low latitude glass of described low dead level with a sealing is as follows:
The first step according to the shape of the convex surface low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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 or the pressure that adds to make glass form convex surface downwards, and be down to room temperature with stove;
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, ensure certain exhaust-duct, then send in the high temperature edge sealing stove;
The 4th step was warming up to described high temperature edge sealing stove more than the melt temperature of solder, reached 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 high temperature edge sealing stove obtains required convex surface low latitude glass.
Described edge sealing temperature is preferably 150～550 ℃, further is preferably 290～350 ℃ when adopting low melting point metal or solder; When adopting low temperature glass solder, further be preferably 380～470 ℃.
The present invention also provides a kind of convex surface low latitude glass, it comprises: upper glass, lower-glass and sheet glass, described sheet glass is clipped between described upper glass and the described lower-glass, described upper glass and described lower-glass form respectively the low dead level of two sealings with described sheet glass, described upper glass, the periphery of described lower-glass and described sheet glass all has the edge band frame, described upper glass, the periphery of described lower-glass and described sheet glass welds together by solder, described upper glass and described lower-glass are convex glasses, the bow camber degree of described convex glass is not more than 0.3%, and convex surface toward the outer side;
The preparation method of the convex surface low latitude glass of described low dead level with two sealings is as follows:
The first step according to the shape of the convex surface low latitude glass of required making and three blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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 or the pressure that adds to make glass form convex surface downwards, and be down to room temperature with stove;
The 3rd step, the solder of packing between the edge band frame with the lower-glass that obtains and sheet glass, and described three glass consistencies from top to bottom are stacked together, ensure certain exhaust-duct, then send in the high temperature edge sealing stove;
The 4th step was warming up to described high temperature edge sealing stove more than the melt temperature of solder, reached 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 three blocks of glass, the fire door of opening high temperature edge sealing stove obtains required convex surface low latitude glass.
Described edge sealing temperature is preferably 150～550 ℃, further is preferably 290～350 ℃ when adopting low melting point metal or solder; When adopting low temperature glass solder, further be preferably 380～470 ℃.
The present invention also provides a kind of preparation method with convex surface low latitude glass of a low dead level, and it comprises:
The first step according to the shape of the convex surface low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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 or the pressure that adds to make glass form convex surface downwards, and be down to room temperature with stove;
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, ensure certain exhaust-duct, then send in the high temperature edge sealing stove;
The 4th step was warming up to described high temperature edge sealing stove more than the melt temperature of solder, reached 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 high temperature edge sealing stove obtains required convex surface low latitude glass.
Described edge sealing temperature is preferably 150～550 ℃, further is preferably 290～350 ℃ when adopting low melting point metal or solder; When adopting low temperature glass solder, further be preferably 380～470 ℃.
The present invention also provides a kind of preparation method with convex surface low latitude glass of two low dead levels, and it comprises:
The first step according to the shape of the convex surface low latitude glass of required making and three blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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 or the pressure that adds to make glass form convex surface downwards, and be down to room temperature with stove;
The 3rd step, the solder of packing between the edge band frame with the lower-glass that obtains and sheet glass, and described three glass consistencies from top to bottom are stacked together, ensure certain exhaust-duct, then send in the high temperature edge sealing stove;
The 4th step was warming up to described high temperature edge sealing stove more than the melt temperature of solder, reached 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 three blocks of glass, the fire door of opening high temperature edge sealing stove obtains required convex surface low latitude glass.
Described edge sealing temperature is preferably 150～550 ℃, further is preferably 290～350 ℃ when adopting low melting point metal or solder; When adopting low temperature glass solder, further be preferably 380～470 ℃.
The present invention also provides a kind of convex surface tempering low latitude glass, it comprises: the upper glass of tempering, the lower-glass of tempering, the periphery 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, form the low dead level of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, and the bow camber degree of described convex glass is not more than 0.3%, and convex surface toward the outer side;
The preparation method of the convex surface tempering low latitude glass of described low dead level with a sealing is as follows:
The first step according to the shape of the convex surface low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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 or the pressure that adds to make glass form convex surface downwards, carry out subsequently wind-cooling reinforcing;
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, ensure certain exhaust-duct, then send in the high temperature edge sealing stove; Described high temperature 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, adopt first basic heating system that described high temperature edge sealing furnace interior and upper and lower bulk glass are heated to a basal temperature, 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 high temperature edge sealing stove obtains required convex surface low latitude glass.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of melt temperature is preferably 380～470 ℃.
The present invention also provides a kind of convex surface tempering low latitude glass, it comprises: the upper glass of tempering, the lower-glass of tempering and the sheet glass of tempering, described sheet glass is clipped between described upper glass and the described lower-glass, described upper glass and described lower-glass form respectively the low dead level of two sealings with described sheet glass, described upper glass, the periphery of described lower-glass and described sheet glass all has the edge band frame, described upper glass, the periphery of described lower-glass and described sheet glass welds together by solder, described upper glass and described lower-glass are convex glasses, the bow camber degree of described convex glass is not more than 0.3%, and convex surface toward the outer side;
The preparation method of the convex surface tempering low latitude glass of described low dead level with two sealings is as follows:
The first step according to the shape of the convex surface low latitude glass of required making and three blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing wherein 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 or the pressure that adds to make glass form convex surface downwards, carry out subsequently wind-cooling reinforcing;
The 3rd step, the solder of packing between the edge band frame with the lower-glass that obtains and sheet glass, and described three glass consistencies from top to bottom are stacked together, ensure certain exhaust-duct, then send in the high temperature edge sealing stove; Described high temperature 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, adopt first basic heating system that described high temperature edge sealing furnace interior and upper and lower glass, middle sheet glass integral body are heated to a basal temperature, adopt again the local heating system that local heating is carried out in upper and lower glass periphery position, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature, venting hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together three blocks of glass, and the fire door of opening high temperature edge sealing stove obtains required convex surface low latitude glass.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of melt temperature is preferably 380～470 ℃.
The preparation method that the present invention has also offered a kind of convex surface tempering low latitude glass with a low dead level is as follows:
The first step according to the shape of the convex surface low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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, carry out subsequently wind-cooling reinforcing;
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, ensure certain exhaust-duct, then send in the high temperature edge sealing stove; Described high temperature 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, adopt first basic heating system that described high temperature edge sealing furnace interior and upper and lower bulk glass are heated to a basal temperature, 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 high temperature edge sealing stove obtains required convex surface low latitude glass.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of melt temperature is preferably 380～470 ℃.
The present invention also provides the preparation method of the convex surface tempering low latitude glass with two low dead levels as follows:
The first step according to the shape of the convex surface low latitude glass of required making and three blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing wherein 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, carry out subsequently wind-cooling reinforcing;
The 3rd step, the solder of packing between the edge band frame with the lower-glass that obtains and sheet glass, and described three glass consistencies from top to bottom are stacked together, ensure certain exhaust-duct, then send in the high temperature edge sealing stove; Described high temperature 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, adopt first basic heating system that described high temperature edge sealing furnace interior and upper and lower bulk glass are heated to a basal temperature, adopt again the local heating system that upper and lower glass and middle sheet glass peripheral position are carried out local heating, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature, venting hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together three blocks of glass, and the fire door of opening high temperature edge sealing stove obtains required convex surface low latitude glass.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of melt temperature is preferably 380～470 ℃.
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 upper convex glass 1 and lower convex glass 2, on glassly all has an edge band frame at two, and the periphery of two blocks of glass welds together by low temperature glass solder 3, middlely is low dead level.Its making method is as follows: at first according to the shape of made low latitude glass and two blocks of sheet glass of size cutting desired size, carry out edging, chamfering, after cleaning, the drying, two printing technologies of utilizing on glass cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has edge band frame, a lower-glass that two edge band frames are arranged, 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; Next is packed above-mentioned glass in the forming mould, this forming mould has mold and bed die (being formpiston and former), glass clamp is between mold and bed die, and can exert pressure and make upper and lower mould closed, the forming mould that glass is housed is placed in the bending furnace, be warming up to 650 ℃ of 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, and be down to room temperature with stove; Again evenly be coated with full low temperature glass solder between two edge band frames with lower-glass, and two glass consistencies from top to bottom are stacked together, leave certain exhaust-duct, send in the high temperature edge sealing stove; At last high temperature edge sealing stove is heated to the melt temperature of low temperature glass solder more than 430 ℃, 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 low latitude glass.
Innovative point of the present invention is: low latitude glass utilizes the convex shape of glass to resist 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 manufacture difficulty; The mode of employing automatic edge sealing in the stove of low latitude has been simplified technological process, has lowered production cost, has shortened the production cycle, has been improved production efficiency; 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 low dummy status, low latitude glass longer, even lose the low latitude, its performance also is better than general double glazing.
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 low latitude glass.In addition, the edge band frame also is the key that single stage method prepares low latitude glass.
Embodiment 2: referring to Fig. 1, 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 low latitude 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 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; Again evenly be coated with full low temperature glass solder between two edge band frames with lower-glass, and two glass consistencies from top to bottom are stacked together, leave 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; Utilize first at last basic heating system heating, 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 low latitude 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.
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 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. 1, 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 low latitude 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 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; Again fill the brazing metal glass putty between the edge band frame with lower-glass or spread tinfoil paper or the tin silk, and two glass consistencies from top to bottom are stacked together and leave certain exhaust space, send in the high temperature edge sealing stove; High-temperature exhaust air, limit heating backmost, the melting temperature that is warming up to metallic tin is above such as 240 ℃, metallic tin will melt, and the edge band frame of upper glass embeds under action of gravitation between the edge band frame of lower-glass, and the metallic tin of melting with two glass cementations together; Stopped heating, with stove cooling, brazing metal tin hermetic welds together two blocks of glass, opens fire door and obtains required low latitude glass.
Embodiment 4: referring to Fig. 2, 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 low latitude 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 screen printing technique 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; Again evenly be coated with full low temperature glass solder between two edge band frames with intermediate glass and lower-glass, and three glass consistencies from top to bottom are stacked together, send in the high temperature edge sealing stove, high temperature edge sealing stove and accessory has basic heating system and local heating system; Utilize first at last basic heating system heating, 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, between two edge band frames 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 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. convex surface low latitude glass, it is characterized in that, comprise: 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, forms the low dead level of a sealing between described upper glass and the described lower-glass, and described upper glass and described lower-glass are convex glasses, the bow camber degree of described convex glass is not more than 0.3%, and convex surface toward the outer side.
2. convex surface as claimed in claim 1 low latitude glass 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.
3. convex surface as claimed in claim 1 low latitude glass, it is characterized in that described convex surface low latitude 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 low dead level of two sealings with described sheet glass.
4. convex surface as claimed in claim 1 low latitude glass, the bow camber degree that it is characterized in that described convex glass is 0.1 ~ 0.3%.
5. convex surface as claimed in claim 1 low latitude glass is characterized in that described edge band frame adopts the preparation of mould printing cryogenic glass powder.
6. convex surface as claimed in claim 1 low latitude glass is characterized in that the air pressure in the described low dead level is 0.02 ~ 0.07MPa.
7. convex surface as claimed in claim 2 low latitude glass is characterized in that the edge band frame of described upper glass is entrenched between the edge band frame of described lower-glass.
8. convex surface as claimed in claim 1 low latitude glass is characterized in that described solder comprises low temperature glass solder and low melting point metal or solder.
9. the preparation method of each described convex surface low latitude glass of claim 1 to 8 is characterized in that comprising:
The first step according to the shape of the convex surface low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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 or the pressure that adds to make glass form convex surface downwards, and be down to room temperature with stove;
In the 3rd step, the solder of packing between the edge band frame of the glass that second step is obtained is stacked together described two glass consistencies from top to bottom, leaves the exhaust-duct between two glass, then sends in the high temperature edge sealing stove;
The 4th step was warming up to described high temperature edge sealing stove more than the melt temperature of solder, reached 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 high temperature edge sealing stove obtains required convex surface low latitude glass.
10. the preparation method of each described convex surface low latitude glass of claim 1 to 8 is characterized in that the preparation method is as follows when described convex surface low latitude glass is convex surface tempering low latitude glass:
The first step according to the shape of the convex surface low latitude glass of required making and two blocks of sheet glass of size cutting desired size, is carried out edging, chamfering, cleans, drying treatment; And utilize the mould printing cryogenic glass powder to prepare the edge band frame at the face of weld of glass;
Second step, with the glass after two processing 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 or the pressure that adds to make glass form convex surface downwards, carry out subsequently wind-cooling reinforcing;
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, ensure certain exhaust-duct, then send in the high temperature edge sealing stove; Described high temperature 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, adopt first basic heating system that described high temperature edge sealing furnace interior and upper and lower bulk glass are heated to a basal temperature, 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 high temperature edge sealing stove obtains required convex surface low latitude glass.
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| CN2012100756132A CN102951792A (en) | 2012-03-21 | 2012-03-21 | Micro convex-surface low-pressure air glass and preparation method thereof |
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| CN2012100756132A CN102951792A (en) | 2012-03-21 | 2012-03-21 | Micro convex-surface low-pressure air glass and preparation method thereof |
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| EP1657396A2 (en) * | 2004-11-11 | 2006-05-17 | Saint-Gobain Glass France | Insulating glass unit |
| CN201521210U (en) * | 2009-07-03 | 2010-07-07 | 贾天民 | Negative type hollow glass capable of monitoring, adjusting and repairing pressure value in cavity |
| CN201620103U (en) * | 2009-11-13 | 2010-11-03 | 欧阳宝武 | Flat rolling convex vacuum glass without vacuum-pumping glass tube |
| CN102079631A (en) * | 2009-11-27 | 2011-06-01 | 洛阳兰迪玻璃机器有限公司 | Method for sealing tempered vacuum glass and product |
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- 2012-03-21 CN CN2012100756132A patent/CN102951792A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1657396A2 (en) * | 2004-11-11 | 2006-05-17 | Saint-Gobain Glass France | Insulating glass unit |
| CN201521210U (en) * | 2009-07-03 | 2010-07-07 | 贾天民 | Negative type hollow glass capable of monitoring, adjusting and repairing pressure value in cavity |
| CN201620103U (en) * | 2009-11-13 | 2010-11-03 | 欧阳宝武 | Flat rolling convex vacuum glass without vacuum-pumping glass tube |
| CN102079631A (en) * | 2009-11-27 | 2011-06-01 | 洛阳兰迪玻璃机器有限公司 | Method for sealing tempered vacuum glass and product |
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