CN102951801A - Convex vacuum glass welded by glass and manufacturing method thereof - Google Patents
Convex vacuum glass welded by glass and manufacturing method thereof Download PDFInfo
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- CN102951801A CN102951801A CN2012100757794A CN201210075779A CN102951801A CN 102951801 A CN102951801 A CN 102951801A CN 2012100757794 A CN2012100757794 A CN 2012100757794A CN 201210075779 A CN201210075779 A CN 201210075779A CN 102951801 A CN102951801 A CN 102951801A
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Abstract
The invention provides convex vacuum glass, comprising upper glass and lower glass, wherein edge banding frames are respectively arranged at the peripheries of welding surfaces of the upper glass and the lower glass, the periphery of the upper glass and the periphery of the lower glass are welded together by virtue of low temperature welding flux, the low temperature welding flux is low temperature glass welding flux, a closed vacuum layer is formed between the upper glass and the lower glass, the upper glass and the lower glass are convex glasses, and convex surfaces of the upper glass and the lower glass face the outside. The manufacturing method of the vacuum glass provided by the invention is simple in process, and the manufactured vacuum glass and tempered vacuum glass can overcome the defects in the prior art, can effectively guarantee air tightness and are enhanced in transparency, strength and heat insulation and sound insulation performances and also can lighten light pollution of a glass curtain wall.
Description
Technical field
The present invention relates to the glass processing technical field, relate in particular to a kind of vacuum glass and preparation method thereof.
Background technology
Vacuum glass is a kind of novel energy-conserving product, is mainly used in the door and window of buildings, automobile and steamer etc., also is applied to agricultural greenhouse, refrigerator, thermal insulation cabinet and refrigerator etc., is good insulation, heat insulation, sound-proof material.Its heat insulating, sound-proofing properties, antifrost condensation performance, anti-blast intensity etc. all are better than single flat sheet glass and various double glazing greatly.Existing vacuum glass is to form a space to carrying out edge sealing welding around the sheet glass of two parallel placements in the middle of making it, and this space vacuumized makes it form vacuum layer.Because two parallel sheet glass of vacuum glass can be pressed together on together under atmospheric effect, in order to guarantee the existence of vacuum layer under external atmospheric pressure, need between vacuum glass two glass sheets upholder be set.Upholder generally is glass powder with low melting point of metal, pottery or the sintering such as stainless steel etc., because the existence of upholder, affected to a certain extent the transparency of vacuum glass, upholder also helps the transmission of energy and sound, has affected the heat insulation and sound-proofing properties of vacuum glass.Be subjected to the impact of two parallel plate internal surface planeness, some upholder can not get the abundant clamping of upper and lower sheet glass, causes upholder place sheet glass unbalance stress, and excessive tension stress can cause the fragmentation of sheet glass, thereby has reduced the life-span of vacuum glass.
Toughened glass is shatter proof glass, only has toughened vacuum glass just can be applied in the Highrise buildings, and toughened vacuum glass is never accomplished scale production up to now.The technical barrier that toughened vacuum glass is made also has following difficulty the total difficult problem in vacuum glass making processes: 1, the upholder of fixed thickness can't adapt to the random variation in the gap between two sheet glass that toughened glass causes because of distortion in heat enhancing process, upholder can't evenly carry barometric point, even can't locate and move, stressed irregular and destroy at the barometric point lower-glass; 2, add excess Temperature, overlong time in the heat sealing process, cause toughened glass stress relaxation, strength degradation, do not reach the requirement of toughened glass.
Present many City Buildings adopt glass curtain wall to make extraneous adornment, and light pollution is the large drawback of one, also can have reflective harm when vacuum glass is applied to glass curtain wall.
Summary of the invention
Technical problem to be solved by this invention is the defective that is for existing vacuum glass existence, a kind of novel vacuum glass, vacuum toughened glass and preparation method thereof are provided, the making method technique of this vacuum glass is simple, prepared vacuum glass and toughened vacuum glass can overcome deficiency of the prior art, can effectively guarantee the resistance to air loss of vacuum glass, and can increase transparency with intensity and heat insulation, sound-proofing properties and alleviate the glass curtain wall light pollution.
In order to solve the problems of the technologies described above, the invention provides a kind of convex surface vacuum glass, it comprises: upper glass, lower-glass, the face of weld 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, and described solder is low temperature glass solder, forms the vacuum layer of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, and convex surface toward the outer side.
Wherein, the high 0.1mm that is not less than of the convex surface of described convex glass bow is preferably 0.2 ~ 200mm, more preferably 1 ~ 20mm.
Wherein, the periphery of described upper glass contains an edge band frame at least, and the periphery of described lower-glass contains two edge band frames at least.
Wherein, described edge band frame is made by the mode that printing or machinery apply, and 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 convex surface vacuum glass can also comprise one flat plate glass, and described sheet glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described sheet glass.
In order to solve the problems of the technologies described above, the invention provides the preparation method of above-mentioned convex surface vacuum glass, it comprises:
The first step according to the shape of the convex surface vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment; 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 was coated with full solder between the edge band frame of the glass that second step is obtained, and evenly leaves several aspirating holes on the solder, and described two glass consistencies from top to bottom are stacked together, and sent in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, be warming up to more than the melt temperature of solder, reach the edge sealing temperature, aspirating hole disappears, stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
In order to solve the problems of the technologies described above, the invention provides the preparation method of above-mentioned convex surface vacuum glass, when described convex surface vacuum glass was the convex surface toughened vacuum glass, the preparation method was as follows,
The first step according to the shape of the convex surface vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment; 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, be coated with full solder between the edge band frame of the glass that second step is obtained, evenly leave several aspirating holes on the solder, and described two glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, described vacuum edge sealing sole is vacuumized, the limit heating, be evacuated to below the 0.1Pa, adopt first basic heating system with described vacuum edge sealing furnace interior and on, lower-glass integral body is heated to a basal temperature, adopt again the local heating system to upper, the lower-glass peripheral position carries out local heating, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature, aspirating hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, and the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
Beneficial effect of the present invention:
The upper and lower glass of vacuum glass of the present invention 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 vacuum glass manufacture craft, reduce production costs, so that the production of vacuum glass is more easy, and can improve transparency, intensity and heat insulation, sound insulation and the resisting wind press capacity of vacuum glass.On the vacuum glass, the periphery of lower-glass contains the edge band frame, so that the edge sealing of vacuum glass is easier, the mutual chimeric sealing effectiveness of glass under deformation that guaranteed of edge band frame up and down, have the bonding strength higher than low temperature welding glass between edge band frame and the upper lower-glass, sealing surface area and airtight layer thickness between the upper lower-glass have been increased, solved the uneven problem of sealing of existing edge of vacuum glass, sticking power and the adhesion strength of sealing-in have greatly been strengthened, on having increased, the tightness of vacuum layer between the lower-glass, improved the life-span of vacuum glass, and can save and make and the great bleeding point of sealing difficulty, realized that the single stage method mass prepares vacuum glass and toughened vacuum glass, promote the suitability for industrialized production of vacuum glass and toughened vacuum glass, greatly improved productivity and the qualification rate of vacuum glass, reduced the production cost of vacuum glass.Vacuum breaking in addition, owing to adopting convex glass, strengthened the thickness of vacuum layer, has been conducive to keep vacuum tightness, even in the situation that also can be worked as the use of hollow glass.At last, convex glass can with light scatter, effectively alleviate the light pollution of glass curtain wall.
Description of drawings
Fig. 1 is convex surface vacuum glass structural representation of the present invention;
Fig. 2 is the convex surface vacuum glass structural representation with upholder of the present invention;
Fig. 3 is the convex surface vacuum glass structural representation with two vacuum layer of the present invention.
Among the figure: 1. upper glass, 2. lower-glass, 3. solder, 4. the edge band frame of lower-glass, 5. the edge band frame of upper glass, 6. upholder, 7. intermediate glass.
Embodiment
The invention provides a kind of convex surface vacuum glass, it comprises: upper glass, lower-glass, the face of weld 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, described solder is low temperature glass solder, form the vacuum layer of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, the high 0.1mm that is not less than of the bow of described convex glass, be preferably 0.2 ~ 200mm, convex surface toward the outer side.
Described convex surface vacuum glass can also comprise one flat plate glass, and described sheet glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described sheet glass.
Described convex surface vacuum glass may further include polylith sheet glass, thereby comprises the vacuum layer of a plurality of sealings.
The upper glass of convex surface vacuum glass and lower-glass utilize the convex shape of glass to resist normal atmosphere, make two blocks of glass can not press together, keep the vacuum layer between two glass, have saved the very large upholder of making and installation difficulty; Do not had stopping of upholder, transparency and the visibility of vacuum glass are better; Do not had the conduction of upholder, the heat insulation and sound-proofing properties of vacuum glass is better; Convex configuration makes glass that higher ultimate compression strength and bending strength be arranged, and the resisting wind press capacity of vacuum glass is better; Convex configuration makes vacuum layer that larger space be arranged, and more can keep for a long time the life-span of vacuum state, vacuum glass longer, even lose vacuum, its performance also is better than general double glazing.
High 0.2～the 200mm that is preferably of convex surface bow of upper and lower two blocks of convex glasses of described vacuum 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 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 is cut two blocks of sheet glass of required size according to the shape and size of the convex surface vacuum glass of required making, carries out edging, chamfering, cleaning and drying treatment;
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 vacuum 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 of 6 ~ 18mm is namely arranged between two blocks of glass, be equivalent to existing double glazing.
Described solder is commercially available low temperature glass solder, and preferred melt temperature is about 400 ~ 450 ℃ crown glass scolder.
Described solder is coated between two edge band frames of lower-glass, and the upper surface of described solder is not less than described edge band frame.
The formation of the vacuum glass of described single vacuum layer adopts single stage method to form, and described single stage method refers to the edge sealing of vacuum glass and vacuumize in vacuum edge sealing stove finish simultaneously, and can carry out batch processing to vacuum glass.
Described single stage method further comprises the steps:
Be coated with full solder in the middle of two edge band frames with lower-glass, the upper surface of solder evenly leaves several grooves that pass through the eutectic welding strip or slit as aspirating hole a little more than the edge band frame on the solder; Upper and lower glass consistency from top to bottom is stacked together, sends in the vacuum edge sealing stove; To 0.1Pa, and heating makes that temperature rises to more than the melt temperature of solder in the stove, reaches the edge sealing temperature to vacuum edge sealing stove evacuation, and aspirating hole disappears; 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 vacuum glass.
It is as follows that the single stage method of described two vacuum layer convex surface vacuum glass forms step:
Be coated with full solder in the middle of two edge band frames with lower convex glass and middle sheet glass face of weld, the upper surface of solder is a little more than the edge band frame, evenly leave several grooves that pass through the eutectic welding strip or slit on the solder as aspirating hole, and three glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove; To vacuum edge sealing stove evacuation to 0.1Pa, and heating make that temperature rises to more than the melt temperature of solder in the stove, reach the edge sealing temperature, aspirating hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together three blocks of glass, opens fire door and obtains required convex surface vacuum glass.
Described edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
When the preparation be toughened glass the time, for solving the problem of annealing because welding temperature is too high, vacuum 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 vacuum 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 edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
The mode of employing automatic edge sealing in vacuum edge sealing stove is saved and is made and very large bleeding point and the extraction pipe of sealing difficulty, has simplified technological process, has lowered production cost, has shortened the production cycle, has improved production efficiency.
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 vacuum edge sealing stove and accessory has basic heating system and local heating system, the temperature of glass edge is rapidly heated to welding temperature, and tempering or semi-tempered glass are under lower basal temperature, in the long period and higher local temperature, in shorter time phenomenon can not occur significantly to anneal, so can guarantee to obtain tempering or half tempered vacuum glass.
In the described vacuum layer, 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 vacuum glass are better; Do not had the conduction of upholder, the heat insulation and sound-proofing properties of convex surface vacuum glass is better.
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 vacuum glass are being satisfied under the prerequisite of service requirements by the purposes decision of vacuum glass, and its shape is preferably square or circular.
The face of weld periphery of described upper glass contains an edge band frame at least, and the face of weld periphery of described lower-glass contains two edge band frames at least.
The height of described edge band frame is preferably 0.1～10mm, 0.5～2mm more preferably, and width is preferably 0.2～5mm, more preferably 1～2mm.
Can leave several aspirating holes on the described edge band frame, namely perpendicular to the edge band frame and along the equally distributed groove of edge band frame or slit, quantity is by the girth decision of upper and lower glass, and spacing approximately 50～150mm is advisable, and can seal described aspirating hole after described solder fusing; Also can not stay aspirating hole, utilize the formed space, rough surface of the solder that applies as the passage that vacuumizes, can shorten the time that vacuumizes but leave aspirating hole.
When containing two or more edge band frame, described solder is in the centre of described edge band frame.Described edge band frame when the upper surface of the middle sheet glass of the convex glass with two vacuum layer, identical with described lower-glass, when the lower surface of described sheet glass, identical with described upper glass.
The edge band frame of described lower-glass is Duoed one than the edge band frame of described upper glass, be that described upper glass contains an edge band frame at least, described lower-glass contains two edge band frames at least, the edge band frame of described upper glass is inserted in the middle of the edge band frame of described lower-glass, on described, the edge band frame of lower-glass is entrenched togather mutually, vacuum layer is carried out labyrinth seal, described edge band frame is when the upper surface of the middle sheet glass of the convex glass with two vacuum layer, identical with described lower-glass, when the lower surface of described sheet glass, identical with described upper glass.
The introducing of edge band frame not only can limit low temperature glass solder and dissolve and randomly flow, make edge sealing neatly good-looking afterwards, and play good supporting role, make low temperature glass solder keep certain thickness, reinforced seal effect, the more important thing is that its Heating temperature is high, with upper lower-glass more reliably bonding is arranged, surface irregularity, have more firmly with low temperature glass solder and to be combined, thereby improve resistance to air loss and the reliability of vacuum glass.
Described edge band frame is made by the mode of printing, preferably adopts the mould printing cryogenic glass powder to make.
It is 550 ~ 750 ℃ glass glaze that described cryogenic glass powder is preferably commercially available melt temperature.
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.
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.
The present invention also provides a kind of convex surface vacuum glass, it comprises: upper glass, lower-glass, the face of weld 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, described solder is low temperature glass solder, form the vacuum layer of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, the high 0.1mm that is not less than of the bow of described convex glass, convex surface is toward the outer side;
The preparation method of the convex surface vacuum glass of described vacuum layer with a sealing is as follows:
The first step according to the shape of the convex surface vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment; 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 was coated with full solder between the edge band frame of the glass that second step is obtained, and leaves several aspirating holes on the solder, and described two glass consistencies from top to bottom are stacked together, and sent in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, be warming up to more than the melt temperature of solder, reach the edge sealing temperature, aspirating hole disappears, stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
Described edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
The present invention also provides a kind of convex surface vacuum 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 vacuum layer of two sealings with described sheet glass, the periphery of described upper glass, described lower-glass and described sheet glass welds together by solder, described upper glass and described lower-glass are convex glasses, the high 0.1mm that is not less than of the bow of described convex glass, convex surface is toward the outer side;
The preparation method of the convex surface vacuum glass of described vacuum layer with two sealings is as follows:
The first step according to the shape of the convex surface vacuum glass of required making and three blocks of sheet glass of size cutting desired size, and 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, with even coating solder in the edge band frame of the face of weld periphery of the lower-glass that obtains and middle sheet glass, leave several aspirating holes on the solder, and described three glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, be warming up to more than the melt temperature of solder, reach the edge sealing temperature, aspirating hole disappears, stopped heating, with stove cooling, solder hermetic welds together three blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
Described edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
The present invention also provides a kind of preparation method with convex surface vacuum glass of a vacuum layer, and it comprises:
The first step according to the shape of the convex surface vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment; 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 was coated with full solder between the edge band frame of the glass that second step is obtained, and leaves several aspirating holes on the solder, and described two glass consistencies from top to bottom are stacked together, and sent in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, be warming up to more than the melt temperature of solder, reach the edge sealing temperature, aspirating hole disappears, stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
Described edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
The present invention also provides a kind of preparation method with convex surface vacuum glass of two vacuum layer, and it comprises:
The first step according to the shape of the convex surface vacuum glass of required making and three blocks of sheet glass of size cutting desired size, and 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, with even coating solder in the edge band frame of the face of weld periphery of the lower-glass that obtains and middle sheet glass, leave several aspirating holes on the solder, and described three glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, be warming up to more than the melt temperature of solder, reach the edge sealing temperature, aspirating hole disappears, stopped heating, with stove cooling, solder hermetic welds together three blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
Described edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
The present invention also provides a kind of convex surface toughened vacuum glass, it comprises: the upper glass of tempering, the lower-glass of tempering, the face of weld 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, described solder is low temperature glass solder, form the vacuum layer of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, the high 0.1mm that is not less than of the bow of described convex glass, convex surface is toward the outer side;
The preparation method of the convex surface toughened vacuum glass of described vacuum layer with a sealing is as follows:
The first step according to the shape of the convex surface vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment; 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, be coated with full solder between the edge band frame of the glass that second step is obtained, leave several aspirating holes on the solder, and described two glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, described vacuum edge sealing sole is vacuumized, the limit heating, be evacuated to below the 0.1Pa, adopt first basic heating system with described vacuum edge sealing furnace interior and on, lower-glass integral body is heated to a basal temperature, adopt again the local heating system to upper, the lower-glass peripheral position carries out local heating, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature, aspirating hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, and the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
The present invention also provides a kind of convex surface toughened vacuum glass, it comprises: the sheet glass of the upper glass of tempering, the lower-glass of tempering and 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 vacuum layer of two sealings with described sheet glass, the periphery of described upper glass, described lower-glass and described sheet glass welds together by solder, described upper glass and described lower-glass are convex glasses, the high 0.1mm that is not less than of the bow of described convex glass, convex surface is toward the outer side;
The preparation method of the convex surface toughened vacuum glass of described vacuum layer with two sealings is as follows:
The first step according to the shape of the convex surface vacuum glass of required making and three blocks of sheet glass of size cutting desired size, and 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 does not need hot bending, directly carries out tempering and processes;
The 3rd step, with even coating solder in the edge band frame of the face of weld periphery of the lower-glass that obtains and middle sheet glass, leave several aspirating holes on the solder, and described three glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, described vacuum edge sealing sole is vacuumized, the limit heating, be evacuated to below the 0.1Pa, adopt first basic heating system with described vacuum edge sealing furnace interior and on, lower-glass, middle sheet glass integral body is heated to a basal temperature, adopt again the local heating system to upper, the lower-glass peripheral position carries out local heating, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature, aspirating hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together three blocks of glass, and the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
The preparation method that the present invention has also offered a kind of convex surface toughened vacuum glass with a vacuum layer is as follows:
The first step according to the shape of the convex surface vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment; 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, be coated with full solder between the edge band frame of the glass that second step is obtained, leave several aspirating holes on the solder, and described two glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, described vacuum edge sealing sole is vacuumized, the limit heating, be evacuated to below the 0.1Pa, adopt first basic heating system with described vacuum edge sealing furnace interior and on, lower-glass integral body is heated to a basal temperature, adopt again the local heating system to upper, the lower-glass peripheral position carries out local heating, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature, aspirating hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, and the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
The present invention also provides the preparation method of the convex surface toughened vacuum glass with two vacuum layer as follows:
The first step according to the shape of the convex surface vacuum glass of required making and three blocks of sheet glass of size cutting desired size, and 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 does not need hot bending, directly carries out tempering and processes;
The 3rd step, with even coating solder in the edge band frame of the face of weld periphery of the lower-glass that obtains and middle sheet glass, leave several aspirating holes on the solder, and described three glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, described vacuum edge sealing sole is vacuumized, the limit heating, be evacuated to below the 0.1Pa, adopt first basic heating system with described vacuum edge sealing furnace interior and on, lower-glass integral body is heated to a basal temperature, adopt again the local heating system to upper, lower-glass and middle sheet glass peripheral position carry out local heating, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature, aspirating hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together three blocks of glass, and the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
The scope of described basic Heating temperature is preferably 280～320 ℃, and the scope of edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
Described convex surface vacuum glass may further include polylith sheet glass, thereby comprises the vacuum layer of a plurality of sealings.
The formation of described single vacuum layer can adopt single stage method to form, and described single stage method is directly to finish at vacuum edge sealing furnace high-temperature edge sealing.
Described single stage method further comprises the steps:
Be coated with full solder in the middle of two edge band frames with lower-glass, the upper surface of solder evenly leaves several grooves that pass through the eutectic welding strip or slit as aspirating hole a little more than the edge band frame on the solder; Also can not stay aspirating hole, utilize the formed space, rough surface of the solder that applies as the passage that vacuumizes, can shorten the time that vacuumizes but leave aspirating hole; Upper and lower glass consistency from top to bottom is stacked together, sends in the vacuum edge sealing stove; To 0.1Pa, and heating makes that temperature rises to more than the melt temperature of solder in the stove, reaches the edge sealing temperature to vacuum edge sealing stove evacuation, and aspirating hole disappears; Stopped heating reduces furnace temperature to room temperature, and described solder welds together upper and lower glass is bubble-tight, thereby obtains needed planar vacuum glass.
It is as follows that the single stage method of described two vacuum layer forms step:
Be coated with full solder in the middle of two edge band frames with lower-glass and middle sheet glass, the upper surface of solder leaves several aspirating holes a little more than the edge band frame on the solder, and three glass consistencies from top to bottom are stacked together, and sends in the vacuum edge sealing stove; To vacuum edge sealing stove evacuation to 0.1Pa, and the heating temperature is risen to more than the melt temperature of solder, reach the edge sealing temperature, aspirating hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, opens fire door and obtains required planar vacuum glass.
Described edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
When the preparation be toughened glass the time, the problem of annealing because welding temperature is too high, vacuum 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 vacuum 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 edge sealing temperature is preferably 380～470 ℃, more preferably 430～450 ℃.
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 vacuum glass are being satisfied under the prerequisite of service requirements by the purposes decision of vacuum glass, and its shape is preferably square or circular.
Described solder is low temperature glass solder, and described solder is coated in the middle of two edge band frames of lower-glass.
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, vacuum 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, and the centre is vacuum layer.Its making method is as follows: at first according to the shape of made vacuum 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 bleed-off passage, send in the vacuum edge sealing stove; Last while vacuumizing, heating, be evacuated to below the 0.1Pa, be 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 vacuum glass.
Innovative point of the present invention is: vacuum glass utilizes the convex shape of glass to resist normal atmosphere, makes two blocks of glass can not press together, keep the vacuum layer between two glass, has saved the very large upholder of manufacture difficulty; The mode of employing automatic edge sealing in vacuum oven is saved and is made and very large bleeding point and the extraction pipe of sealing difficulty, has simplified technological process, has lowered production cost, has shortened the production cycle, has improved production efficiency; Do not had stopping of upholder, transparency and the visibility of vacuum glass are better; Do not had the conduction of upholder, the heat insulation and sound-proofing properties of vacuum glass is better; Do not had bleeding point, the outward appearance of vacuum glass is more beautiful, it is more convenient to transport and install, failure rate is lower; Convex configuration makes glass that higher ultimate compression strength and bending strength be arranged, and the resisting wind press capacity of vacuum glass is better; Convex configuration makes vacuum layer that larger space be arranged, and more can keep for a long time the life-span of vacuum state, vacuum glass longer, even lose vacuum, its performance also is better than general double glazing.
The introducing of edge band frame not only can limit low temperature glass solder and dissolve and randomly flow, make edge sealing neatly good-looking afterwards, and play good supporting role, make low temperature glass solder keep certain thickness, reinforced seal effect, the more important thing is that its Heating temperature is high, with upper lower-glass more reliably bonding is arranged, surface irregularity, have more firmly with low temperature glass solder and to be combined, thereby improve resistance to air loss and the reliability of vacuum glass.In addition, the edge band frame also is the key that single stage method prepares vacuum 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 vacuum glass and one flat plate glass and low emissivity glass of size cutting desired size, carry out edging, chamfering, clean, after the drying, at two screen printing techniques that utilize on glass cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has 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 bleed-off passage, send in the vacuum edge sealing stove, vacuum edge sealing stove and accessory has basic heating system and local heating system; Last one side vacuumizes, utilize basic heating system heating on one side, be evacuated to below the 0.1Pa, after basal temperature rises to 300 ℃, recycling local heating system such as far infra-red heater are heated to melt temperature more than 430 ℃ with the low temperature glass solder in the edge band frame, the edge band frame of upper glass embeds under action of gravitation between two edge band frames of lower-glass, the low temperature glass solder of melting with two glass cementations together, stopped heating, lower the temperature with stove, low temperature glass solder hermetic welds together two blocks of glass, opens fire door and obtains required vacuum glass.
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 vacuum edge sealing stove and accessory has basic heating system and local heating system, the temperature of glass edge is rapidly heated to welding temperature, and tempering or semi-tempered glass are under lower basal temperature, in the long period and higher local temperature, in shorter time phenomenon can not occur significantly to anneal, so can guarantee to obtain tempering or half tempered vacuum glass.
Embodiment 3: referring to Fig. 2, two blocks of glass are toughened glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all has an edge band frame at two, its making method is as follows: at first according to the shape of made vacuum glass and one flat plate glass and low emissivity glass of size cutting desired size, carry out edging, chamfering, clean, after the drying, two printing technologies of utilizing on glass cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has 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 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; Again evenly be coated with full low temperature glass solder between two edge band frames with lower-glass, and at upper or lower-glass employing low temperature glass solder printing upholder, upholder is that the dot matrix parallel with the edge band frame arranged, distance between 2 is 120mm, upholder is cylindric, its diameter is 1.2mm, two blocks of glass close sheet rear support thing position spatial altitude 0.1mm highly to be to be higher than 2.0mm, the height of upholder up and down; Two glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove, vacuum edge sealing stove and accessory has basic heating system and local heating system; Last one side vacuumizes, utilize basic heating system heating on one side, be evacuated to below the 0.1Pa, after basal temperature rises to 300 ℃ of the softening sintering temperatures of upholder, recycling local heating system such as far infra-red heater are heated to the low temperature glass solder in the edge band frame more than the melt temperature, 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, upholder also with two glass sinterings up and down together, stopped heating, lower the temperature with stove, low temperature glass solder hermetic welds together two blocks of glass, opens fire door and obtains required vacuum glass.
Upholder adopts low temperature glass solder to make, and lower sintering temperature is arranged, and makes it can sintering in the edge sealing process, and by means of its slightly high height, upper lower-glass can be bonded together reliably, thereby plays effective supporting role; The existing outward appearance that is similar to sheet glass of the curved surface that curvature is larger has again the intensity higher than sheet glass, thereby can greatly reduce to reduce the quantity of upholder, further improves the transparency of glass, heat insulation and sound-proofing properties.
Embodiment 4: referring to Fig. 3, three blocks of glass are toughened glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all has an edge band frame at three, its making method is as follows: at first according to the shape of made vacuum glass and two blocks of sheet glass and low emissivity glass of size cutting desired size, carry out edging, chamfering, clean, after the drying, bonding surface at three blocks of glass utilizes printing technology that cryogenic glass powder cream is printed to the edge band frame, wherein upper glass has an edge band frame, the upper surface of intermediate glass has two edge band frame lower surfaces that an edge band frame is arranged, lower-glass has two edge band frames, the size of top edge band frame is between two following edge band frames, after upper, middle and lower glass closed sheet, top edge band frame can be embedded between two following edge band frames; Secondly will be up and down two blocks of glass pack into mould, be placed in the bending furnace, be warming up to the softening temperature of glass, rely on the gravity of glass self to make glass form convex surface downwards, the edge band frame also is in softening molten state and glassy bond together, carry out immediately wind-cooling reinforcing, obtain tempering or semi-tempered glass with the edge band frame; Intermediate glass directly advances annealing furnace, obtains tempering or semi-tempered glass with the edge band frame; 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 vacuum edge sealing stove, vacuum edge sealing stove and accessory has basic heating system and local heating system; Last one side vacuumizes, utilize basic heating system heating on one side, be evacuated to below the 0.1Pa, after basal temperature rises to 300 ℃, recycling local heating system such as far infra-red heater are heated to melt temperature more than 450 ℃ with the low temperature glass solder in the edge band frame, 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 vacuum glass.
This intellecture property of primary enforcement that all are above-mentioned is not set restriction this product innovation of other forms of enforcement and/or novel method.Those skilled in the art will utilize this important information, and foregoing is revised, to realize similar implementation status.But all modifications or transformation belong to the right of reservation based on product innovation of the present invention.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (10)
1. convex surface vacuum glass, it is characterized in that, comprise: upper glass, lower-glass, the face of weld 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, and described solder is low temperature glass solder, forms the vacuum layer of a sealing between described upper glass and the described lower-glass, described upper glass and described lower-glass are convex glasses, and convex surface toward the outer side.
2. convex surface vacuum glass according to claim 1 is characterized in that the periphery of described upper glass contains an edge band frame at least, and the periphery of described lower-glass contains two edge band frames at least.
3. convex surface vacuum glass according to claim 1, it is characterized in that described convex surface vacuum glass can also comprise one flat plate glass, described sheet glass is clipped between described upper glass and the described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described sheet glass.
4. convex surface vacuum glass according to claim 1 is characterized in that the convex surface of described convex glass bends the high 1～20mm of being.
5. convex surface vacuum glass according to claim 1 is characterized in that described edge band frame adopts the preparation of mould printing cryogenic glass powder.
6. convex surface vacuum glass according to claim 1, the height that it is characterized in that described edge band frame is 0.5～2mm, width is 1～2mm.
7. convex surface vacuum glass according to claim 2 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 vacuum glass according to claim 2 is characterized in that described solder is placed between the edge band frame of described lower-glass.
9. the preparation method of each described convex surface vacuum glass of claim 1 to 8 is characterized in that comprising:
The first step according to the shape of the convex surface vacuum glass of required making and two blocks of sheet glass of size cutting desired size, and is carried out edging, chamfering, cleans, drying treatment; 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 was coated with full solder between the edge band frame of the glass that second step is obtained, and evenly leaves several aspirating holes on the solder, and described two glass consistencies from top to bottom are stacked together, and sent in the vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to below the 0.1Pa, be warming up to more than the melt temperature of solder, reach the edge sealing temperature, aspirating hole disappears, stopped heating, with stove cooling, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
10. the preparation method of each described convex surface vacuum glass of claim 1 to 8 is characterized in that the preparation method is as follows when described convex surface vacuum glass is the convex surface toughened vacuum glass:
The first step according to the shape of the convex surface vacuum 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, be coated with full solder between the edge band frame of the glass that second step is obtained, leave several aspirating holes on the solder, and described two glass consistencies from top to bottom are stacked together, send in the vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, the basis heating system can adopt the mode of resistive heating such as nichrome wire, electrothermal tube, hot plate etc., and the local heating system can adopt the modes such as resistive heating, infrared heating, LASER HEATING, Electromagnetic Heating, microwave heating;
The 4th step, described vacuum edge sealing sole is vacuumized, the limit heating, be evacuated to below the 0.1Pa, adopt first basic heating system with described vacuum edge sealing furnace interior and on, lower-glass integral body is heated to a basal temperature, adopt again the local heating system to upper, the lower-glass peripheral position carries out local heating, reach the purpose that at short notice solder is heated to melting, thereby reach the edge sealing temperature, aspirating hole disappears, stopped heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, and the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
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| CN104743830A (en) * | 2013-12-25 | 2015-07-01 | 戴长虹 | Glass-welded convex vacuum glass with edges sealed by sealing strips and manufacturing method thereof |
| CN107417126A (en) * | 2017-06-22 | 2017-12-01 | 合肥钢骨玻璃制品有限公司 | A kind of vacuum glass and preparation method thereof |
| CN107976001A (en) * | 2017-12-26 | 2018-05-01 | 青岛乐克玻璃科技股份有限公司 | Novel energy-saving vacuum glass cold chain door body and preparation method thereof |
| BE1027927B1 (en) * | 2019-12-27 | 2021-08-03 | Skylux Nv | VACUUM DOME DEVICE AND PROCEDURE FOR THEIR MANUFACTURE |
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Effective date of registration: 20191211 Address after: 314416 No.318, Nanjie Road, Yuanhua Town, Haining City, Jiaxing City, Zhejiang Province Patentee after: Haining Yuanhua Town Industrial Investment Co., Ltd Address before: 266033 No. 11, Fushun Road, Sifang District, Shandong, Qingdao Patentee before: Dai Changhong |
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