CN102951801B - Convex surface vacuum glass of glass welding and preparation method thereof - Google Patents
Convex surface vacuum glass of glass welding and preparation method thereof Download PDFInfo
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- CN102951801B CN102951801B CN201210075779.4A CN201210075779A CN102951801B CN 102951801 B CN102951801 B CN 102951801B CN 201210075779 A CN201210075779 A CN 201210075779A CN 102951801 B CN102951801 B CN 102951801B
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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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Abstract
The invention provides a kind of convex surface vacuum glass, it comprises: upper glass, lower-glass, the solder side periphery of described upper glass and described lower-glass all has edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, between described upper glass and described lower-glass, form the vacuum layer of a sealing, described upper glass and described lower-glass are convex glasses, and convex surface toward the outer side. The preparation method technique of this vacuum glass of the present invention is simple, prepared vacuum glass and toughened vacuum glass can overcome deficiency of the prior art, can effectively ensure the air-tightness of vacuum glass, and can increase transparency and intensity and heat insulation and sound insulation value, also can alleviate the light pollution of glass curtain wall.
Description
Technical field
The present invention relates to 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 building, automobile and steamer etc., is also applied to agricultural greenhouse, refrigerator, thermal insulation cabinet and refrigerator etc., is good insulation, heat insulation, acoustic material. Its insulation, sound insulation value, antifrost condensation performance, resistance to blast intensity etc. are all better than single flat glass sheet and various double glazing greatly. Existing vacuum glass is that the surrounding of the glass plate to two parallel placements is carried out edge sealing welding and made to form a space in the middle of it, and this space is vacuumized and makes it form vacuum layer. Because two parallel glass plates of vacuum glass under atmospheric effect can be pressed together on together, in order to ensure the existence of vacuum layer under external atmospheric pressure, need between vacuum glass two glass sheets, supporter be set. Supporter is generally the glass powder with low melting point of the metals such as stainless steel, pottery or sintering etc., due to the existence of supporter, affected to a certain extent the transparency of vacuum glass, supporter also contributes to the transmission of energy and sound, has affected the heat insulation and sound insulation value of vacuum glass. Be subject to the impact of two parallel plate inner surface flatness, some supporter can not get the abundant clamping of upper and lower glass plate, causes supporter place glass plate unbalance stress, and excessive tensile stress can cause the fragmentation of glass plate, thereby has reduced the life-span of vacuum glass.
Safety glass is safety glass, only has toughened vacuum glass just can be applied in skyscraper, 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 in vacuum glass manufacturing process a total difficult problem: 1, the supporter of fixed thickness cannot adapt to the random variation in the gap between two sheet glass that safety glass causes because of distortion in heat enhancing process, supporter cannot evenly carry atmospheric pressure, even cannot locate and move, stressed irregular and destroy at atmospheric pressure lower-glass; 2, add excess Temperature, overlong time in heat sealing process, cause safety glass stress relaxation, intensity to decline, the requirement that does not reach safety glass.
Current 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 defect being for existing vacuum glass existence, a kind of novel vacuum glass, vacuum safety glass and preparation method thereof are provided, the preparation method technique of this vacuum glass is simple, prepared vacuum glass and toughened vacuum glass can overcome deficiency of the prior art, can effectively ensure the air-tightness of vacuum glass, and can increase transparency with intensity and heat insulation, sound insulation value and alleviate 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 solder side periphery of described upper glass and described lower-glass all has 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 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 convex surface bow of described convex glass, is preferably 0.2 ~ 200mm, more preferably 1 ~ 20mm.
Wherein, the periphery of described upper glass at least contains an edge band frame, and the periphery of described lower-glass at least contains two edge band frames.
Wherein, the mode that described edge band frame applies by printing or machinery is made, and preferably adopts mould printing cryogenic glass powder to make, and it is the glass glaze of 550 ~ 750 DEG C that described cryogenic glass powder is preferably commercially available melt temperature.
Wherein, described mode of printing is the method that adopts serigraphy or mould printing or printer, cryogenic glass powder is imprinted on to formation on glass and is raised in the fin of glass surface.
Wherein, when described edge band frame adopts mould printing cryogenic glass powder to prepare, can be one-step print, can be also repeatedly to print.
Wherein, the height of described edge band frame is preferably 0.1～10mm, more preferably 0.5～2mm, 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 plate glass is clipped between described upper glass and described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described plate 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 two blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on the gravity of glass self to make glass form convex surface downwards, and is down to room temperature with stove;
The 3rd step, fills solder between the edge band frame of the glass that second step is obtained, and evenly leaves several aspirating holes, and described two glass consistencies from top to bottom are stacked together on solder, sends in vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to the melt temperature of solder more than, reach edge sealing temperature, aspirating hole disappears, stop 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.
In order to solve the problems of the technologies described above, the invention provides the preparation method of above-mentioned convex surface vacuum glass, in the time that described convex surface vacuum glass is convex surface toughened vacuum glass, preparation method is as follows,
The first step, according to two blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on the gravity of glass self to make glass form convex surface downwards, carries out subsequently wind-cooling reinforcing;
The 3rd step, between the edge band frame of the glass that second step is obtained, fill solder, on solder, evenly leave several aspirating holes, and described two glass consistencies from top to bottom are stacked together, send in vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, basis heating system can adopt the mode of resistance heated as heating wire, electrothermal tube, electric hot plate etc., and local heat system can adopt the modes such as resistance heated, infrared heating, LASER HEATING, Electromagnetic Heating, heating using microwave;
The 4th step, described vacuum edge sealing sole is vacuumized, limit heating, be evacuated to below 0.1Pa, first adopt basic heating system by described vacuum edge sealing furnace interior and on, lower-glass entirety is heated to a basal temperature, adopt again local heat system to upper, lower-glass peripheral position carries out local heat, reach the object that at short notice solder is heated to melting, thereby reach edge sealing temperature, aspirating hole disappears, stop heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, 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 compression strength, resist atmospheric pressure so rely on the shape of convex glass, can not put or put less supporter, not only simplify vacuum glass manufacture craft, reduce production costs, make the production of vacuum glass more easy, and can improve transparency, intensity and heat insulation, sound insulation and the resisting wind press capacity of vacuum glass. on vacuum glass, the periphery of lower-glass contains edge band frame, make the edge sealing of vacuum glass easier, the mutual chimeric sealing effectiveness of glass under deformation that ensured of upper and lower edge band frame, between edge band frame and upper lower-glass, there is the bond strength higher than low-temperature welding glass, sealing area and airtight layer thickness between upper lower-glass are increased, solve the uneven problem of sealing of existing edge of vacuum glass, adhesive force and the adhesive strength of sealing-in are greatly strengthened, on having increased, the tightness of vacuum layer between lower-glass, improve the life-span of vacuum glass, and can save and make and the great bleeding point of sealing difficulty, realize one-step method mass and prepared vacuum glass and toughened vacuum glass, promote the suitability for industrialized production of vacuum glass and toughened vacuum glass, productivity ratio and the qualification rate of vacuum glass are greatly improved, reduce the production cost of vacuum glass. in addition, owing to adopting convex glass, strengthened the thickness of vacuum layer, be conducive to keep vacuum, used even if also can work as double glazing in the situation that of vacuum breaking. finally, convex glass can, by light scattering, effectively alleviate the light pollution of glass curtain wall.
Brief description of the 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 supporter of the present invention;
Fig. 3 is the convex surface vacuum glass structural representation with two vacuum layer of the present invention.
In figure: 1. upper glass, 2. lower-glass, 3. solder, the 4. edge band frame of lower-glass, the 5. edge band frame of upper glass, 6. supporter, 7. intermediate glass.
Detailed description of the invention
The invention provides a kind of convex surface vacuum glass, it comprises: upper glass, lower-glass, the solder side periphery of described upper glass and described lower-glass all has edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, between described upper glass and described lower-glass, form the vacuum layer of a sealing, described upper glass and described lower-glass are convex glasses, the high 0.1mm that is not less than of 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 plate glass is clipped between described upper glass and described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described plate glass.
Described convex surface vacuum glass may further include polylith plate glass, thus the vacuum layer that comprises multiple sealings.
The upper glass of convex surface vacuum glass and lower-glass utilize the convex shape of glass to resist atmospheric pressure, make two blocks of glass can not press together, keep the vacuum layer between two glass, have saved the supporter that making and installation difficulty are very large; There is no stopping of supporter, transparency and the visibility of vacuum glass are better; There is no the conduction of supporter, the heat insulation and sound insulation value of vacuum glass is better; Convex configuration, makes glass have higher compression strength and bending strength, and the resisting wind press capacity of vacuum glass is better; Convex configuration, makes vacuum layer have larger space, more can keep for a long time the life-span of vacuum state, vacuum glass longer, even if lose vacuum, its performance is also 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, during as door glass not protrude from outside sash and to be advisable.
It is high that described upper and lower glass can have identical bow, also can have different bows high according to the difference of width inside and outside sash.
Described upper and lower glass is prepared from by plate glass, and its preparation method further comprises: in bending furnace, utilize mould, by the gravity of glass self or additional pressure, plate glass is prepared into convex glass.
Described preparation method further comprises:
The first step, cuts two blocks of plate glass of required size according to the shape and size of the convex surface vacuum glass of required making, carry out edging, chamfering, cleaning and dry processing;
Second step, two blocks of plate glass after treatment are respectively charged into mould, put into bending furnace, be warming up to glass transition temperature, rely on gravity or the additional pressure of glass self to make glass form convex surface downwards, subsequently furnace temperature is down to room temperature, obtains the upper and lower glass that is shaped as convex glass.
Be safety glass if obtain the material of upper and lower glass, in described second step, two blocks of plate glass after treatment are respectively charged into 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, obtain and be shaped as the upper and lower glass that convex glass, material are safety glass.
Described glass transition temperature is preferably 550 DEG C～750 DEG C.
The convex surface high shape by glass of bow of described convex surface vacuum glass and size and purposes determine, meeting under the prerequisite of opposing atmospheric pressure and purposes, bow is high as small as possible, during for common door glass pane, be advisable with 3 ~ 9mm, the space that has 6 ~ 18mm between two blocks of glass, is equivalent to existing double glazing.
Described solder is commercially available low temperature glass solder, and preferably melt temperature is the crown glass scolder of approximately 400 ~ 450 DEG C.
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 one-step method to form, and described one-step method refers to the edge sealing of vacuum glass and vacuumizes in vacuum edge sealing stove and complete simultaneously, and can carry out batch process to vacuum glass.
Described one-step method further comprises the steps:
In the middle of two edge band frames that will lower-glass, fill solder, the upper surface of solder is a little more than edge band frame, evenly leaves several grooves that pass through eutectic welding material strip or slit as aspirating hole on solder; Upper and lower glass consistency from top to bottom is stacked together, sends in vacuum edge sealing stove; To vacuum edge sealing stove evacuation, to 0.1Pa, and heating makes in stove more than temperature rises to the melt temperature of solder, to reach edge sealing temperature, and aspirating hole disappears; Stop heating, reduce furnace temperature to room temperature, described solder welds together bubble-tight upper and lower glass, thereby obtains needed convex surface vacuum glass.
It is as follows that the one-step method of described two vacuum layer convex surface vacuum glass forms step:
To in the middle of two edge band frames of lower convex glass and middle plate glass solder side, fill solder, the upper surface of solder is a little more than edge band frame, on solder, evenly leave several grooves that pass through eutectic welding material strip or slit as aspirating hole, and three glass consistencies from top to bottom are stacked together, send in vacuum edge sealing stove; To vacuum edge sealing stove evacuation to 0.1Pa, and heating make in stove more than temperature rises to the melt temperature of solder, reach edge sealing temperature, aspirating hole disappears, stop 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 DEG C, more preferably 430～450 DEG C.
When preparation be safety glass 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, basis heating system can adopt the mode of resistance heated as heating wire, electrothermal tube, electric hot plate etc., by vacuum edge sealing furnace interior and glass heats to basal temperature; The modes such as recycling resistance heated, infrared heating, LASER HEATING, Electromagnetic Heating, heating using microwave are that local heat is carried out in edge sealing position to the periphery of glass, reach the object that at short notice solder is heated to melting.
The scope of described basic heating-up temperature is preferably 280～320 DEG C, and the scope of edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
Adopt the mode of automatic edge sealing in vacuum edge sealing stove, save and make and very large bleeding point and the exhaust tube of sealing difficulty, simplified technical process, lowered production cost, shortened the production cycle, improved production efficiency.
Because tempering and semi-tempered glass have higher intensity, so under identical shape and size, the convex surface bow of tempering or half tempered convex glass is high can be less, tempering or half tempered convex glass can be more flat. Because utilization has the mould of upper and lower mould, glass clamp relied between upper and lower mould to the moulding of exerting pressure, so convex glass has more regular shape, and prevent the 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, can make the temperature of glass edge be 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 ensure to obtain tempering or half tempered vacuum glass.
In described vacuum layer, when the planar dimension of upper and lower glass is less or when high large, the convex shape that can rely on glass self of convex surface bow and intensity opposing atmospheric pressure, can not establish supporter; When upper and lower glass can not rely on the convex shape of self and when intensity opposing atmospheric pressure, the supporter of a small amount of necessity should be set, supporter is jointly resisted atmospheric pressure together with glass.
There is no stopping of supporter, transparency and the visibility of convex surface vacuum glass are better; There is no the conduction of supporter, the heat insulation and sound insulation value of convex surface vacuum glass is better.
The material of described upper and lower glass can be simple glass or safety 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 safety glass, semi-tempered glass and low emissivity glass.
The shape and size of described vacuum glass determine by the purposes of vacuum glass, and under the prerequisite that meets instructions for use, its shape is preferably square or circular.
The solder side periphery of described upper glass at least contains an edge band frame, and the solder side periphery of described lower-glass at least contains two edge band frames.
The height of described edge band frame is preferably 0.1～10mm, more preferably 0.5～2mm, and width is preferably 0.2～5mm, more preferably 1～2mm.
On described edge band frame, can leave several aspirating holes, perpendicular to edge band frame and along the equally distributed groove of edge band frame or slit, quantity determines by the girth of upper and lower glass, and spacing approximately 50～150mm is advisable, and after described solder fusing, can seal described aspirating hole; Also can not stay aspirating hole, the time vacuumizing, as the passage vacuumizing, can be shortened but leave aspirating hole in the space that the rough surface of the solder that utilization applies forms.
In the time containing two or more edge band frame, described solder is in the centre of described edge band frame. Described edge band frame in the time thering is the upper surface of middle plate glass of convex glass of two vacuum layer, identical with described lower-glass, in the time of the lower surface of described plate glass, identical with described upper glass.
Many one than the edge band frame of described upper glass of the edge band frame of described lower-glass, be that described upper glass at least contains an edge band frame, described lower-glass at least contains two edge band frames, 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 to labyrinth sealing, described edge band frame is in the time having the upper surface of middle plate glass of convex glass of two vacuum layer, identical with described lower-glass, in the time of the lower surface of described plate 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-up temperature is high, have bonding more reliably with upper lower-glass, rough surface, have more firmly and be combined with low temperature glass solder, thereby improve air-tightness and the reliability of vacuum glass.
Described edge band frame is made by the mode of printing, preferably adopts mould printing cryogenic glass powder to make.
It is the glass glaze of 550 ~ 750 DEG C that described cryogenic glass powder is preferably commercially available melt temperature.
Described mode of printing is the method that adopts serigraphy or mould printing or printer, cryogenic glass powder is imprinted on to formation on glass and is raised in the fin of glass surface.
When described edge band frame adopts mould printing cryogenic glass powder to prepare, can be one-step print, can be also 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 have better bond strength with glass; After the edge band frame of upper lower-glass is chimeric mutually, not only reduced edge sealing low temperature glass solder consumption, reduced the requirement to edge sealing low temperature glass solder, and increase inner liner thickness, improved the sealing strength of upper lower-glass, the more important thing is and can 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 solder side periphery of described upper glass and described lower-glass all has edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, between described upper glass and described lower-glass, form the vacuum layer of a sealing, described upper glass and described lower-glass are convex glasses, the high 0.1mm that is not less than of bow of described convex glass, convex surface is toward the outer side;
The preparation method of the convex surface vacuum glass of the described vacuum layer with a sealing is as follows:
The first step, according to two blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on gravity or the additional pressure of glass self to make glass form convex surface downwards, and is down to room temperature with stove;
The 3rd step, fills solder between the edge band frame of the glass that second step is obtained, and leaves several aspirating holes, and described two glass consistencies from top to bottom are stacked together on solder, sends in vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to the melt temperature of solder more than, reach edge sealing temperature, aspirating hole disappears, stop 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.
Described edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
The present invention also provides a kind of convex surface vacuum glass, it comprises: upper glass, lower-glass and plate glass, described plate glass is clipped between described upper glass and described lower-glass, described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described plate glass, the periphery of described upper glass, described lower-glass and described plate 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 bow of described convex glass, convex surface is toward the outer side;
The preparation method of the convex surface vacuum glass of the described vacuum layer with two sealings is as follows:
The first step, according to three blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on gravity or the additional pressure of glass self to make glass form convex surface downwards, and is down to room temperature with stove;
The 3rd step, by being evenly coated with solder in the edge band frame of the solder side periphery of the lower-glass obtaining and middle plate glass, leaves several aspirating holes, and described three glass consistencies from top to bottom is stacked together on solder, send in vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to the melt temperature of solder more than, reach edge sealing temperature, aspirating hole disappears, stop 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.
Described edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
The present invention also provides a kind of preparation method of the convex surface vacuum glass with a vacuum layer, and it comprises:
The first step, according to two blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on gravity or the additional pressure of glass self to make glass form convex surface downwards, and is down to room temperature with stove;
The 3rd step, fills solder between the edge band frame of the glass that second step is obtained, and leaves several aspirating holes, and described two glass consistencies from top to bottom are stacked together on solder, sends in vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to the melt temperature of solder more than, reach edge sealing temperature, aspirating hole disappears, stop 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.
Described edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
The present invention also provides a kind of preparation method of the convex surface vacuum glass with two vacuum layer, and it comprises:
The first step, according to three blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on gravity or the additional pressure of glass self to make glass form convex surface downwards, and is down to room temperature with stove;
The 3rd step, by being evenly coated with solder in the edge band frame of the solder side periphery of the lower-glass obtaining and middle plate glass, leaves several aspirating holes, and described three glass consistencies from top to bottom is stacked together on solder, send in vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to the melt temperature of solder more than, reach edge sealing temperature, aspirating hole disappears, stop 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.
Described edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
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 solder side periphery of described upper glass and described lower-glass all has edge band frame, the periphery of described upper glass and described lower-glass welds together by solder, described solder is low temperature glass solder, between described upper glass and described lower-glass, form the vacuum layer of a sealing, described upper glass and described lower-glass are convex glasses, the high 0.1mm that is not less than of bow of described convex glass, convex surface is toward the outer side;
The preparation method of the convex surface toughened vacuum glass of the described vacuum layer with a sealing is as follows:
The first step, according to two blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on gravity or the additional pressure of glass self to make glass form convex surface downwards, carries out subsequently wind-cooling reinforcing;
The 3rd step, between the edge band frame of the glass that second step is obtained, fill solder, on solder, leave several aspirating holes, and described two glass consistencies from top to bottom are stacked together, send in vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, basis heating system can adopt the mode of resistance heated as heating wire, electrothermal tube, electric hot plate etc., and local heat system can adopt the modes such as resistance heated, infrared heating, LASER HEATING, Electromagnetic Heating, heating using microwave;
The 4th step, described vacuum edge sealing sole is vacuumized, limit heating, be evacuated to below 0.1Pa, first adopt basic heating system by described vacuum edge sealing furnace interior and on, lower-glass entirety is heated to a basal temperature, adopt again local heat system to upper, lower-glass peripheral position carries out local heat, reach the object that at short notice solder is heated to melting, thereby reach edge sealing temperature, aspirating hole disappears, stop heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
The scope of described basic heating-up temperature is preferably 280～320 DEG C, and the scope of edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
The present invention also provides a kind of convex surface toughened vacuum glass, it comprises: the plate glass of the upper glass of tempering, the lower-glass of tempering and tempering, described plate glass is clipped between described upper glass and described lower-glass, described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described plate glass, the periphery of described upper glass, described lower-glass and described plate 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 bow of described convex glass, convex surface is toward the outer side;
The preparation method of the convex surface toughened vacuum glass of the described vacuum layer with two sealings is as follows:
The first step, according to three blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, wherein two blocks of glass after treatment pack mould into, are placed in bending furnace, are warming up to 550～750 DEG C of the softening temperature of glass, rely on gravity or the additional pressure 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 processing;
The 3rd step, solder will be evenly coated with in the edge band frame of the solder side periphery of the lower-glass obtaining and middle plate glass, on solder, leave several aspirating holes, and described three glass consistencies from top to bottom are stacked together, send in vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, basis heating system can adopt the mode of resistance heated as heating wire, electrothermal tube, electric hot plate etc., and local heat system can adopt the modes such as resistance heated, infrared heating, LASER HEATING, Electromagnetic Heating, heating using microwave;
The 4th step, described vacuum edge sealing sole is vacuumized, limit heating, be evacuated to below 0.1Pa, first adopt basic heating system by described vacuum edge sealing furnace interior and on, lower-glass, middle plate glass entirety is heated to a basal temperature, adopt again local heat system to upper, lower-glass peripheral position carries out local heat, reach the object that at short notice solder is heated to melting, thereby reach edge sealing temperature, aspirating hole disappears, stop heating, lower the temperature with stove, solder hermetic welds together three blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
The scope of described basic heating-up temperature is preferably 280～320 DEG C, and the scope of edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
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 two blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on the gravity of glass self to make glass form convex surface downwards, carries out subsequently wind-cooling reinforcing;
The 3rd step, between the edge band frame of the glass that second step is obtained, fill solder, on solder, leave several aspirating holes, and described two glass consistencies from top to bottom are stacked together, send in vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, basis heating system can adopt the mode of resistance heated as heating wire, electrothermal tube, electric hot plate etc., and local heat system can adopt the modes such as resistance heated, infrared heating, LASER HEATING, Electromagnetic Heating, heating using microwave;
The 4th step, described vacuum edge sealing sole is vacuumized, limit heating, be evacuated to below 0.1Pa, first adopt basic heating system by described vacuum edge sealing furnace interior and on, lower-glass entirety is heated to a basal temperature, adopt again local heat system to upper, lower-glass peripheral position carries out local heat, reach the object that at short notice solder is heated to melting, thereby reach edge sealing temperature, aspirating hole disappears, stop heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
The scope of described basic heating-up temperature is preferably 280～320 DEG C, and the scope of edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
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 three blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, wherein two blocks of glass after treatment pack mould into, are placed in bending furnace, are warming up to 550～750 DEG C 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 processing;
The 3rd step, solder will be evenly coated with in the edge band frame of the solder side periphery of the lower-glass obtaining and middle plate glass, on solder, leave several aspirating holes, and described three glass consistencies from top to bottom are stacked together, send in vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system, basis heating system can adopt the mode of resistance heated as heating wire, electrothermal tube, electric hot plate etc., and local heat system can adopt the modes such as resistance heated, infrared heating, LASER HEATING, Electromagnetic Heating, heating using microwave;
The 4th step, described vacuum edge sealing sole is vacuumized, limit heating, be evacuated to below 0.1Pa, first adopt basic heating system by described vacuum edge sealing furnace interior and on, lower-glass entirety is heated to a basal temperature, adopt again local heat system to upper, lower-glass and middle plate glass peripheral position carry out local heat, reach the object that at short notice solder is heated to melting, thereby reach edge sealing temperature, aspirating hole disappears, stop heating, lower the temperature with stove, solder hermetic welds together three blocks of glass, the fire door of opening vacuum edge sealing stove obtains required convex surface vacuum glass.
The scope of described basic heating-up temperature is preferably 280～320 DEG C, and the scope of edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
Described convex surface vacuum glass may further include polylith plate glass, thus the vacuum layer that comprises multiple sealings.
The formation of described single vacuum layer can adopt one-step method to form, and described one-step method is directly to complete at vacuum edge sealing furnace high-temperature edge sealing.
Described one-step method further comprises the steps:
In the middle of two edge band frames that will lower-glass, fill solder, the upper surface of solder is a little more than edge band frame, evenly leaves several grooves that pass through eutectic welding material strip or slit as aspirating hole on solder; Also can not stay aspirating hole, the time vacuumizing, as the passage vacuumizing, can be shortened but leave aspirating hole in the space that the rough surface of the solder that utilization applies forms; Upper and lower glass consistency from top to bottom is stacked together, sends in vacuum edge sealing stove; To vacuum edge sealing stove evacuation, to 0.1Pa, and heating makes in stove more than temperature rises to the melt temperature of solder, to reach edge sealing temperature, and aspirating hole disappears; Stop heating, reduce furnace temperature to room temperature, described solder welds together bubble-tight upper and lower glass, thereby obtains needed planar vacuum glass.
It is as follows that the one-step method of described two vacuum layer forms step:
To in the middle of two edge band frames of lower-glass and middle plate glass, fill solder, the upper surface of solder, a little more than edge band frame, leaves several aspirating holes on solder, and three glass consistencies from top to bottom are stacked together, and sends in vacuum edge sealing stove; To vacuum edge sealing stove evacuation to 0.1Pa, and heating make more than temperature rises to the melt temperature of solder, reach edge sealing temperature, aspirating hole disappears, stop 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 DEG C, more preferably 430～450 DEG C.
When preparation be safety glass time, the problem of annealing because welding temperature is too high, vacuum edge sealing stove can have basic heating system and local heating system, basis heating system can adopt the mode of resistance heated as heating wire, electrothermal tube, electric hot plate etc., by vacuum edge sealing furnace interior and glass heats to basal temperature; The modes such as recycling resistance heated, infrared heating, LASER HEATING, Electromagnetic Heating, heating using microwave are that local heat is carried out in edge sealing position to the periphery of glass, reach the object that at short notice solder is heated to melting.
The scope of described basic heating-up temperature is preferably 280～320 DEG C, and the scope of edge sealing temperature is preferably 380～470 DEG C, more preferably 430～450 DEG C.
The material of described upper and lower glass can be simple glass or safety 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 safety glass, semi-tempered glass and low emissivity glass.
The shape and size of described vacuum glass determine by the purposes of vacuum glass, and under the prerequisite that meets instructions for use, 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, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.
Embodiment 1: referring to Fig. 1, vacuum glass is made up 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 centre is vacuum layer. Its preparation method is as follows: first according to two blocks of plate glass of the shape of made vacuum glass and size cutting required size, carry out edging, chamfering, after cleaning, being dried, two printing technologies of utilizing on glass, cryogenic glass powder cream is printed to edge band frame, wherein upper glass has edge band frame, a lower-glass to have two edge band frames, the size of upper glass edge band frame is between two edge band frames of lower-glass, upper lower-glass closes after sheet, and the edge band frame of upper glass can be embedded between two edge band frames of lower-glass; Secondly above-mentioned glass is packed in mould, this 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 closure, the mould that glass is housed is placed in bending furnace, be warming up to 650 DEG C of the softening temperature of glass, rely on the pressure putting on mould to make the glass in mould form convex surface, and be down to room temperature with stove; Again will between two edge band frames of lower-glass, evenly fill low temperature glass solder, and two glass consistencies from top to bottom are stacked together, leave certain bleed-off passage, send in vacuum edge sealing stove; Last vacuumize while heat, the melt temperature that be evacuated to below 0.1Pa, is heated to low temperature glass solder is more than 430 DEG C, the edge band frame of upper glass embeds between two edge band frames of lower-glass under the effect of gravity, the low temperature glass solder of melting bonds together two blocks of glass, stop 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 atmospheric pressure, makes two blocks of glass can not press together, keep the vacuum layer between two glass, has saved the very large supporter of manufacture difficulty; Adopt the mode of automatic edge sealing in vacuum drying oven, save and make and very large bleeding point and the exhaust tube of sealing difficulty, simplified technical process, lowered production cost, shortened the production cycle, improved production efficiency; There is no stopping of supporter, transparency and the visibility of vacuum glass are better; There is no the conduction of supporter, the heat insulation and sound insulation value of vacuum glass is better; There is no bleeding point, the outward appearance of vacuum glass is more beautiful, it is more convenient to transport and install, crash rate is lower; Convex configuration, makes glass have higher compression strength and bending strength, and the resisting wind press capacity of vacuum glass is better; Convex configuration, makes vacuum layer have larger space, more can keep for a long time the life-span of vacuum state, vacuum glass longer, even if lose vacuum, its performance is also 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-up temperature is high, have bonding more reliably with upper lower-glass, rough surface, have more firmly and be combined with low temperature glass solder, thereby improve air-tightness and the reliability of vacuum glass. In addition, edge band frame is also the key that one-step method is prepared vacuum glass.
Embodiment 2: referring to Fig. 1, two blocks of glass are safety glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all there is edge band frame at two, its preparation method is as follows: first according to one flat plate glass and a low emissivity glass of the shape of made vacuum glass and size cutting required size, carry out edging, chamfering, clean, after dry, at two screen printing techniques that utilize on glass, cryogenic glass powder cream is printed to 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, upper lower-glass closes after 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, are placed in bending furnace, be warming up to the softening temperature 550-750 DEG C of glass, rely on the gravity of glass self to make glass form convex surface downwards, edge band frame is also in softening molten condition together with glassy bond, carry out immediately wind-cooling reinforcing, obtain tempering or semi-tempered glass, again will between two edge band frames of lower-glass, evenly fill low temperature glass solder, and two glass consistencies from top to bottom are stacked together, leave certain bleed-off passage, send in 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 0.1Pa, basal temperature rises to after 300 DEG C, recycling local heat system is heated to melt temperature more than 430 DEG C by the low temperature glass solder in edge band frame as far infra-red heater, the edge band frame of upper glass embeds between two edge band frames of lower-glass under the effect of gravity, the low temperature glass solder of melting bonds together two blocks of glass, stop heating, lower the temperature with stove, low temperature glass solder hermetic welds together two blocks of glass, open fire door and obtain 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 have better bond strength with glass; After the edge band frame of upper lower-glass is chimeric mutually, not only reduced edge sealing low temperature glass solder consumption, reduced the requirement to edge sealing low temperature glass solder, and increase inner liner thickness, improved the sealing strength of upper lower-glass, the more important thing is and can 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, can make the temperature of glass edge be 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 ensure to obtain tempering or half tempered vacuum glass.
Embodiment 3: referring to Fig. 2, two blocks of glass are safety glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all there is edge band frame at two, its preparation method is as follows: first according to one flat plate glass and a low emissivity glass of the shape of made vacuum glass and size cutting required size, carry out edging, chamfering, clean, after dry, two printing technologies of utilizing on glass, cryogenic glass powder cream is printed to 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, upper lower-glass closes after 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, are placed in 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, edge band frame is also in softening molten condition together with glassy bond, carry out immediately wind-cooling reinforcing, obtain tempering or semi-tempered glass, again will between two edge band frames of lower-glass, evenly fill low temperature glass solder, and on upper or lower-glass, adopt low temperature glass solder to print supporter, supporter is that the dot matrix parallel with edge band frame arranged, distance between 2 is 120mm, supporter is cylindric, its diameter is 1.2mm, highly for 2.0mm, the height of supporter closes sheet rear support thing position spatial altitude 0.1mm higher than upper and lower two blocks of glass, two glass consistencies from top to bottom are stacked together, send in 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 0.1Pa, basal temperature rises to after 300 DEG C of the softening sintering temperatures of supporter, recycling local heat system is as more than the low temperature glass solder in edge band frame is heated to melt temperature by far infra-red heater, the edge band frame of upper glass embeds between two edge band frames of lower-glass under the effect of gravity, the low temperature glass solder of melting bonds together two blocks of glass, supporter is also together with upper and lower two glass sinterings, stop heating, lower the temperature with stove, low temperature glass solder hermetic welds together two blocks of glass, open fire door and obtain required vacuum glass.
Supporter adopts low temperature glass solder to make, and has lower sintering temperature, makes it can sintering in 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 plate glass of curved surface that curvature is larger has again the intensity higher than plate glass, thereby can greatly reduce to reduce the quantity of supporter, further improves the transparency of glass, heat insulation and sound insulation value.
Embodiment 4: referring to Fig. 3, three blocks of glass are safety glass or semi-tempered glass, wherein one or low emissivity glass, on glassly all there is edge band frame at three, its preparation method is as follows: first according to two blocks of plate glass and a low emissivity glass of the shape of made vacuum glass and size cutting required size, carry out edging, chamfering, clean, after dry, on the faying face of three blocks of glass, utilize printing technology that cryogenic glass powder cream is printed to edge band frame, wherein upper glass has an edge band frame, the upper surface of intermediate glass has two edge band frame lower surfaces to have an edge band frame, lower-glass has two edge band frames, the size of edge band frame is above between two edge band frames below, upper, middle and lower glass closes after sheet, edge band frame above can be embedded between two edge band frames below, secondly upper and lower two blocks of glass are packed into mould, are placed in 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, edge band frame is also in softening molten condition together with glassy bond, carry out immediately wind-cooling reinforcing, obtain tempering or semi-tempered glass with edge band frame, intermediate glass directly enters annealing furnace, obtains tempering or semi-tempered glass with edge band frame, again will between two edge band frames of intermediate glass and lower-glass, evenly fill low temperature glass solder, and three glass consistencies from top to bottom are stacked together, send in 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 0.1Pa, basal temperature rises to after 300 DEG C, recycling local heat system is heated to melt temperature more than 450 DEG C by the low temperature glass solder in edge band frame as far infra-red heater, between two edge band frames below edge band frame above embeds under the effect of gravity, the low temperature glass solder of melting bonds together three blocks of glass, stop heating, lower the temperature with stove, low temperature glass solder hermetic welds together three blocks of glass, open fire door and obtain required vacuum glass.
All above-mentioned these intellectual properties of primary enforcement, do not set restriction this new product of other forms of enforcement and/or new method. Those skilled in the art will utilize this important information, and foregoing amendment, to realize similar implementation status. But all modifications or transformation belong to the right of reservation based on new product of the present invention.
The above, be only preferred embodiment of the present invention, is not the restriction of the present invention being made to 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 depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. a convex surface vacuum glass, comprise upper glass, lower-glass, it is characterized in that: the periphery of described upper glass, lower-glass welds together by low temperature glass solder, between described upper glass and described lower-glass, form the vacuum layer of a sealing, described upper glass and described lower-glass are convex glasses, and convex surface toward the outer side; The solder side periphery that is further characterized in that described upper glass at least contains an edge band frame, the periphery of described lower-glass at least contains two edge band frames, described edge band frame adopts cryogenic glass powder to make, described edge band frame in bending furnace at 550-750 DEG C of temperature softening melting with glassy bond together with, after lowering the temperature, be solidified into one.
2. convex surface vacuum glass according to claim 1, the periphery that it is characterized in that described upper glass and described lower-glass is that bulk glass is in vacuum drying oven together with the intensification fusing by solder, cooling solidification automatic welding.
3. convex surface vacuum glass according to claim 1, it is characterized in that described convex surface vacuum glass also comprises one flat plate glass, described plate glass is clipped between described upper glass and described lower-glass, and described upper glass and described lower-glass form respectively the vacuum layer of two sealings with described plate 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 is the method that adopts serigraphy or mould printing or printer, cryogenic glass powder is imprinted on to formation on glass and is raised in the fin of glass surface.
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 1, is characterized in that the edge band frame of described upper glass is entrenched between the edge band frame of described lower-glass, forms labyrinth sealing.
8. convex surface vacuum glass according to claim 1, is characterized in that described solder is placed between the edge band frame of described lower-glass.
9. the preparation method of the convex surface vacuum glass described in claim 1 to 8 any one, is characterized in that, comprising:
The first step, according to two blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, and carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on gravity or the additional pressure of glass self to make glass form convex surface downwards, and is down to room temperature with stove;
The 3rd step, fills solder between the edge band frame of the glass that second step is obtained, and evenly leaves several aspirating holes, and described two glass consistencies from top to bottom are stacked together on solder, sends in vacuum edge sealing stove;
The 4th step, to described vacuum edge sealing sole vacuumize, limit heating, be evacuated to 0.1Pa following, be warming up to the melt temperature of solder more than, reach edge sealing temperature, aspirating hole disappears, stop 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.
10. according to the preparation method of the convex surface vacuum glass described in claim 1 to 8 any one, it is characterized in that, in the time that described convex surface vacuum glass is convex surface toughened vacuum glass, preparation method is as follows:
The first step, according to two blocks of plate glass of the shape of the convex surface vacuum glass of required making and size cutting required size, carries out edging, chamfering, cleans, is dried and processes; And on the solder side of glass, utilize mould printing cryogenic glass powder to prepare edge band frame;
Second step, packs two blocks of glass after treatment mould into, is placed in bending furnace, is warming up to 550～750 DEG C of the softening temperature of glass, relies on gravity or the additional pressure of glass self to make glass form convex surface downwards, carries out subsequently wind-cooling reinforcing;
The 3rd step, between the edge band frame of the glass that second step is obtained, fill solder, on solder, leave several aspirating holes, and described two glass consistencies from top to bottom are stacked together, send in vacuum edge sealing stove, described vacuum edge sealing stove and accessory has basic heating system and local heating system; It is heating wire, electrothermal tube or electric hot plate that basis heating system adopts resistance heated mode, and local heat system adopts resistance heated, infrared heating, LASER HEATING, Electromagnetic Heating or heating using microwave;
The 4th step, described vacuum edge sealing sole is vacuumized, limit heating, be evacuated to below 0.1Pa, first adopt basic heating system by described vacuum edge sealing furnace interior and on, lower-glass entirety is heated to a basal temperature, adopt again local heat system to upper, lower-glass peripheral position carries out local heat, reach the object that at short notice solder is heated to melting, thereby reach edge sealing temperature, aspirating hole disappears, stop heating, lower the temperature with stove, solder hermetic welds together two blocks of glass, 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 |