CN103288337A - Support-free double bent vacuum glass and manufacturing method thereof - Google Patents
Support-free double bent vacuum glass and manufacturing method thereof Download PDFInfo
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- CN103288337A CN103288337A CN2012100597121A CN201210059712A CN103288337A CN 103288337 A CN103288337 A CN 103288337A CN 2012100597121 A CN2012100597121 A CN 2012100597121A CN 201210059712 A CN201210059712 A CN 201210059712A CN 103288337 A CN103288337 A CN 103288337A
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Abstract
The invention discloses support-free double bent vacuum glass and a manufacturing method thereof. The glass consists of two pieces of hermetical bent glass relatively distributed, wherein the middle gap is vacuum. The two pieces of bent glass consist of arched curved surfaces and banding planes at the edges, wherein the arched curved surfaces can be spherical surfaces or double curvature arch-shaped surfaces, and the banding planes at the edges are 5-10mm wide. The periphery of the bent glass can be circular or rectangular. The bent vacuum glass can be used for forming vacuum glass in a vacuum furnace or bleeder holes are distributed on one piece of the bent glass to from vacuum through the bleeder holes. According to the double bent vacuum glass disclosed by the invention, indispensable support in common vacuum glass is cancelled, so that the vacuum glass is higher in strength and more excellent in heat and sound insulating function, and better in practical value, and can be used in building ceilings and some special parts.
Description
Technical field
The present invention relates to a kind of vacuum glass, refer to that especially high heat insulation, high sound insulation do not have upholder hyperboloid vacuum glass, for a kind of special construction of vacuum glass, belong to glass manufacturing area.
Background technology
Vacuum glass is a kind of glasswork with good heat-insulation and heat-preservation, is used for the glass door etc. of door, window, curtain wall and the refrigerator of building.
At present, the making of vacuum glass generally is to adopt two sheet glass peripheries use frit seal, establishes upholder between two sheet glass, and the gap is evacuated, and its vacuum tightness requirement reaches 10
-2More than the Pa.Typical vacuum glass structure as shown in Figure 1, two sheet glass of numeral 101 expressions among Fig. 1,102 expression upholders, 103 expression frit seal layers, 104 expression aspirating holes.
For this structure, nearly 600～1000 upholders that distribute on every square meter vacuum glass, upholder is generally made by small metal cylinders, diameter between 0.3～0.6mm, before closing sheet earlier by machinery or manually on request cloth be placed on the glass planar.Because the existence of upholder can bring following several respects defective: the upholder that (1) is small closely still can be seen by naked eyes because opaque, influence the attractive in appearance of glass; The upholder of One's name is legion all is heat bridge between (2) two sheet glass, has increased the thermal conductance of vacuum glass; (3) because of atmospheric existence, can produce contact stress at upholder and glass contact position, cause the generation of glass hertz crackle, the reliability that influences glass is used; (4) laying of upholder also lacks reliable machinery at present and lays mode, and basic employing manually lays, and time and effort consuming, vacuum glass industrialization and mechanization degree are difficult to improve.
Summary of the invention
The object of the present invention is to provide a kind of no upholder hyperboloid vacuum glass and manufacture method thereof, in order to improve the energy-conservation effect of vacuum glass, and make the vacuum glass quality product more reliable, outward appearance is more attractive in appearance, and the printing opacity that can be used for building top and some privileged sites is heat insulation.
No upholder hyperboloid vacuum glass of the present invention is sealed to form by the outside butt joint of two identical bend glass convex surfaces and periphery, and the gap between two bend glasses is vacuum.
Wherein: described bend glass is made of the edge sealing plane of arch upward curved surface and periphery.
The described curved surface that arches upward is sphere or three-core arch face.
Described bend glass peripheral shape is rectangle or circle.
The edge sealing plane of described two bend glass peripheries at grade, the edge sealing plane width is 5～10mm.
Be sealing layer between two bend glass peripheries.
Establish a bleeding point at a slice bend glass at least, this bleeding point communicates with gap between two bend glasses.
Manufacturing provided by the invention does not have the method for upholder hyperboloid vacuum glass, may further comprise the steps: select two materials, bend glass that shape and size are identical, convex surface inside circumference coating low melting point sealing glass at first bend glass, another sheet bend glass convex surface is outwards docked with first bend glass, in vacuum oven, vacuumize under the state two bend glass sealings are formed no upholder hyperboloid vacuum glass; Or
Select two materials, bend glass that shape and size are identical, the curved surface that arches upward at arbitrary bend glass is arranged aspirating hole near peripheral position, periphery coating low melting point sealing glass in the convex surface of first bend glass, another sheet bend glass convex surface is outwards docked with first bend glass, in conventional oven, two bend glasses are sealed, by aspirating hole the gap between two bend glasses is vacuumized, aspirating hole is sealed form no upholder hyperboloid vacuum glass again.
In the method for the above no upholder hyperboloid vacuum glass, described low melting point sealing glass is coated on the inboard place, edge sealing plane of bend glass periphery.
Adopt above design, hyperboloid vacuum glass of the present invention, form vacuum state by the sealing-in of two bend glass limit portions, need not any upholder therebetween, even the gap between two bend glasses is evacuated, two sheet glass can be in the same place because atm difference causes breaking being in contact with one another with distortion yet, the bend glass of same size has higher supporting capacity and littler amount of deflection than flat glass, make hyperboloid vacuum glass intensity higher, has better heat-insulating sound-insulating function, has good practical values, can be used for building top and some privileged sites, as insulated building, light inlet windows such as case, refrigerator, refrigerator glass door etc.
Description of drawings
Fig. 1 is existing vacuum glass structural representation typically;
Fig. 2 hyperboloid vacuum glass of the present invention sectional schematic diagram;
Fig. 3 A is a kind of form synoptic diagram of used bend glass among the present invention;
Fig. 3 B is the another kind of form synoptic diagram of used bend glass among the present invention;
The stress distribution of Fig. 4 A ANSYS analysis chart 3A form bend glass under the normal atmosphere effect;
The amount of deflection of Fig. 4 B ANSYS analysis chart 3A form bend glass under the normal atmosphere effect;
The curved surface vacuum glass that Fig. 5 manufacturing of the present invention obtains photo in kind.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing, these accompanying drawings and the explanation only be illustrate of the present invention.
No upholder hyperboloid vacuum glass of the present invention, its basic structure and principle comprise that 201, two bend glass 201 radians of two bend glasses dock to edge portion as shown in Figure 2, between form the clearance layer, periphery is frit seal layer 202.
Be vacuum in the clearance layer of two bend glasses 201, can be in two bend glasses 201 butt joint vacuum oven integral body vacuumize formation, also establish a bleeding point 203 at least one sheet glass therein, this bleeding point 203 communicates with clearance layer between two bend glasses 201, in two bend glasses, 201 butt joint backs from this bleeding point 203 formation vacuum of bleeding.
Bend glass for the manufacture of vacuum glass can be the glass of using always, such as common float glass, and half tempered glass, toughened glass.The bend glass periphery can be rectangle (seeing Fig. 3 A) or circular (seeing Fig. 3 B).Bend glass is made of the curved surface that arches upward (convex surface) 301 and limit portion edge sealing plane 302, and for increasing the supporting capacity of glass, the curved surface that arches upward (convex surface) 301 shapes of glass can be selected spherical shape or three-core arch face shape for use.
For making produced curved surface vacuum glass under no upholder situation, still have enough intensity and reliability, and to guarantee that two bend glasses do not contact, need carry out appropriate design to thickness and the peripheral size (length and width or radius of circle) of bend glass, the maximum bend glass area of the permission of the glass correspondence of different thickness and curvature of curved surface can adopt Plate Mechanics theory or finite element method to determine, for the bend glass scantlings of the structure that has designed, its moulding and enhancing can be adopted common glass ware forming and tempering Enhancement Method at present, prepare and close the vacuum glass bend glass that symbol requires.Upper and lower two shape and size of bend glass 201 after determining are identical.
Referring to Fig. 2, two identical bend glass peripheral plane butt joints of specification are placed, wherein be coated with the low melting point sealing glass on the peripheral edge sealing plane 302 of a slice bend glass 201 at least, for the clearance layer that reaches between the bend glass can be pumped into required vacuum tightness, for this reason, at first need the bend glass periphery is sealed, form the periphery of sealing fully.The circumference of vacuum glass sealing glass can use sealing glass bar or glass powder, and its heated sealant, vacuum pumping method and the method for sealing can be undertaken by existing vacuum glass method for making.
Concrete, the manufacturing processed of no upholder hyperboloid vacuum glass comprises the following steps:
(1) former selection of vacuum glass: former of vacuum glass should adopt bend glass to replace sheet glass, and bend glass can create by design requirements in advance.
(2) former of vacuum glass is placed step: glass powder with low melting point is coated on two bend glass periphery edge sealing planes, and butt joint is placed.Vacuum glass is divided into two kinds by the mode of vacuumizing: mode one: integral body vacuumizes in the vacuum oven, mode two: the independent degassing method of each piece glass.Vacuum pumping method for mode one, two sheet glass need not be provided with aspirating hole, vacuum pumping method for mode two, at least on glassly want a prefabricated aspirating hole at one in two blocks of glass, this aspirating hole communicates with the internal space that two blocks of glass form, and aspirating hole place seal with Glass tubing with melt envelope glass powder;
(3) edge sealing step: former of the curved surface vacuum glass that places is heated to edge sealing glass powder with low melting point melt temperature, makes the periphery that former formation of this vacuum glass seals fully;
(4) vacuumize step: dual mode: mode one is that integral body vacuumizes and edge sealing in vacuum oven, after the cooling slowly the blow-on door obtain the vacuum glass of vacuum lumen, bleed respectively without monolithic.Mode two is to vacuumize at the employing vacuum pump vacuum glass of edge sealing, makes this vacuum glass internal cavities produce required vacuum tightness; Mode two also need be carried out glass seal: the aspirating hole on former of the evacuated vacuum glass is sealed, obtain having the curved surface vacuum glass of required vacuum tightness.
The maximum characteristics of hyperboloid vacuum glass structure of the present invention are to form vacuum glass by two bend glass sealing-ins, need not any upholder between two glass.Even the gap between two bend glasses is evacuated, two sheet glass can be in the same place because atm difference causes breaking being in contact with one another with distortion yet.According to the Plate Mechanics theory, under the external force effect that is subjected to perpendicular to the surface, stress in bending is very little on the cross section of shell, have higher strength and stiffness (just making according to this principle such as thermos flask) than flat board, vacuum glass by two bend glasses manufacturings, the crack vacuumizes and is subjected under the normal atmosphere effect betwixt, and the bend glass of same size has higher supporting capacity and littler amount of deflection than flat glass.Because vacuum glass will be subjected to a normal atmosphere effect, therefore, is providing rational thickness of glass and peripheral size thereof, two bend glass intensity among Fig. 2 can bear an atm difference and two sheet glass can not contact.
Below with an example hyperboloid vacuum glass of the present invention is described.
The design of bend glass: bend glass adopts toughened glass, square, and length and width are of a size of 0.5m, and thickness 6mm, curved surface are sphere, and curvature is 1.5.By finite element analysis, the maximum tension stress that this piece glass produces under 1 normal atmosphere effect is 24.9MPa (seeing Fig. 4 A), and maximum defluxion is 0.08mm (seeing Fig. 4 B), and calculation result shows stress and satisfied back strength of glass and the deformation requirements of vacuumizing of amount of deflection.
The manufacturing of hyperboloid vacuum glass: make by existing vacuum glass technology of preparing, wherein selecting the edge sealing temperature is 420 degree, 10 minutes heat-up times, and soaking time 10 minutes, temperature fall time 30 minutes is established bleeding point and is vacuumized, and vacuum tightness reaches 10
-2Pa.
The test of hyperboloid vacuum glass: vacuum glass is come out of the stove and is not seen fragmentation (Fig. 5 is pictorial diagram), and the final vacuum glass surface stress of coming out of the stove is 56MPa, is typical half tempered vacuum glass, and thermal conductivity is 0.08W/ (m
2/ K), press the GB/T7106-1986 testing standard, the Wind-Pressure Resistance of Glass performance is 1 grade.
Because hyperboloid glass is curved surface still after vacuumizing, and can be applicable to daylighting top, landscape ornamental and other special purposes such as the light inlet windows such as insulated building, case of building construction, refrigerator, refrigerator glass door etc.
Claims (10)
1. a no upholder hyperboloid vacuum glass is characterized in that, is sealed to form by the outside butt joint of two identical bend glass convex surfaces and periphery, and the gap between two bend glasses is vacuum.
2. no upholder hyperboloid vacuum glass as claimed in claim 1 is characterized in that: described bend glass is made of the edge sealing plane of arch upward curved surface and periphery.
3. no upholder hyperboloid vacuum glass as claimed in claim 2, it is characterized in that: the described curved surface that arches upward is sphere or three-core arch face.
4. as claim 1 or 2 or 3 described no upholder hyperboloid vacuum glass, it is characterized in that: described bend glass peripheral shape is rectangle or circle.
5. as the arbitrary described no upholder hyperboloid vacuum glass of claim 2 to 4, it is characterized in that: the edge sealing plane of described two bend glass peripheries at grade, the edge sealing plane width is 5～10mm.
6. as the arbitrary described no upholder hyperboloid vacuum glass of claim 1 to 5, it is characterized in that: be sealing layer between two bend glass peripheries.
7. as the arbitrary described no upholder hyperboloid vacuum glass of claim 1 to 6, it is characterized in that: establish a bleeding point at a slice bend glass at least, this bleeding point communicates with gap between two bend glasses.
8. method of making the arbitrary described no upholder hyperboloid vacuum glass of claim 1 to 6, may further comprise the steps: select two materials, bend glass that shape and size are identical, convex surface inside circumference coating low melting point sealing glass at first bend glass, another sheet bend glass convex surface is outwards docked with first bend glass, in vacuum oven, vacuumize under the state two bend glass sealings are formed no upholder hyperboloid vacuum glass.
9. method of making the described no upholder hyperboloid vacuum glass of claim 7, may further comprise the steps: select two materials, the bend glass that shape and size are identical, the curved surface that arches upward at arbitrary bend glass is arranged aspirating hole near peripheral position, periphery coating low melting point sealing glass in the convex surface of first bend glass, another sheet bend glass convex surface is outwards docked with first bend glass, in conventional oven, two bend glasses are sealed, by aspirating hole the gap between two bend glasses is vacuumized, aspirating hole is sealed form no upholder hyperboloid vacuum glass again.
10. according to Claim 8 or the method for 9 described no upholder hyperboloid vacuum glass, it is characterized in that described low melting point sealing glass is coated on the inboard place, edge sealing plane of bend glass periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210059712.1A CN103288337B (en) | 2012-03-02 | 2012-03-08 | A kind of without supporter hyperboloid vacuum glass and manufacture method thereof |
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| CN2012100540439 | 2012-03-02 | ||
| CN201210054043 | 2012-03-02 | ||
| CN201210054043.9 | 2012-03-02 | ||
| CN201210059712.1A CN103288337B (en) | 2012-03-02 | 2012-03-08 | A kind of without supporter hyperboloid vacuum glass and manufacture method thereof |
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| CN103288337A true CN103288337A (en) | 2013-09-11 |
| CN103288337B CN103288337B (en) | 2016-06-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701575A (en) * | 2012-03-21 | 2012-10-03 | 戴长虹 | Convex vacuum glass, flat plate vacuum glass and preparation method thereof |
| CN102953443A (en) * | 2012-03-21 | 2013-03-06 | 戴长虹 | Convex low-altitude thermal baffle and manufacturing method thereof |
| CN105776891A (en) * | 2016-05-20 | 2016-07-20 | 太仓耀华玻璃有限公司 | Vacuum glass without supporter and preparation method thereof |
| US9688575B2 (en) | 2012-03-21 | 2017-06-27 | Changhong Dai | Low pressure air or vacuum glass edge-sealed with bar frame and groove |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4185616A (en) * | 1976-08-03 | 1980-01-29 | Johnson Steven A | Solar energy absorber apparatus and method |
| CN101148313A (en) * | 2006-09-20 | 2008-03-26 | 黄家军 | One-step forming vacuum glass and its manufacturing method and device |
| CN201620719U (en) * | 2010-02-12 | 2010-11-03 | 福清市新福兴玻璃有限公司 | Bending hollow energy-saving glass |
| CN202465495U (en) * | 2012-03-02 | 2012-10-03 | 中国建材检验认证集团股份有限公司 | Upholder-free double-curved vacuum glass |
-
2012
- 2012-03-08 CN CN201210059712.1A patent/CN103288337B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185616A (en) * | 1976-08-03 | 1980-01-29 | Johnson Steven A | Solar energy absorber apparatus and method |
| CN101148313A (en) * | 2006-09-20 | 2008-03-26 | 黄家军 | One-step forming vacuum glass and its manufacturing method and device |
| CN201620719U (en) * | 2010-02-12 | 2010-11-03 | 福清市新福兴玻璃有限公司 | Bending hollow energy-saving glass |
| CN202465495U (en) * | 2012-03-02 | 2012-10-03 | 中国建材检验认证集团股份有限公司 | Upholder-free double-curved vacuum glass |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701575A (en) * | 2012-03-21 | 2012-10-03 | 戴长虹 | Convex vacuum glass, flat plate vacuum glass and preparation method thereof |
| CN102953443A (en) * | 2012-03-21 | 2013-03-06 | 戴长虹 | Convex low-altitude thermal baffle and manufacturing method thereof |
| CN102701575B (en) * | 2012-03-21 | 2015-07-01 | 戴长虹 | Convex vacuum glass, flat plate vacuum glass and preparation method thereof |
| CN102953443B (en) * | 2012-03-21 | 2016-01-20 | 青岛理工大学 | Convex low-altitude thermal baffle and preparation method thereof |
| US9688575B2 (en) | 2012-03-21 | 2017-06-27 | Changhong Dai | Low pressure air or vacuum glass edge-sealed with bar frame and groove |
| CN105776891A (en) * | 2016-05-20 | 2016-07-20 | 太仓耀华玻璃有限公司 | Vacuum glass without supporter and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103288337B (en) | 2016-06-29 |
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