CN113001054A - Low-thermal-conductivity sealing material of vacuum glass and vacuum glass - Google Patents
Low-thermal-conductivity sealing material of vacuum glass and vacuum glass Download PDFInfo
- Publication number
- CN113001054A CN113001054A CN202011215891.4A CN202011215891A CN113001054A CN 113001054 A CN113001054 A CN 113001054A CN 202011215891 A CN202011215891 A CN 202011215891A CN 113001054 A CN113001054 A CN 113001054A
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- Prior art keywords
- glass
- vacuum glass
- low
- vacuum
- sealing material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 90
- 239000003566 sealing material Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- 229910052718 tin Inorganic materials 0.000 claims abstract description 7
- 229910052738 indium Inorganic materials 0.000 claims abstract description 6
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 229910052714 tellurium Inorganic materials 0.000 claims abstract description 5
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 4
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 4
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910002059 quaternary alloy Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 13
- 239000002131 composite material Substances 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000005341 toughened glass Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000005340 laminated glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000005394 sealing glass Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/08—Joining glass to glass by processes other than fusing with the aid of intervening metal
Abstract
The invention provides a low-heat-conduction sealing material of vacuum glass, wherein an element A is one of low-heat-conduction substance forming elements, comprises at least one of Ag, Ba and Mg, and has the mass fraction of 1-8%; the C element is one of low-heat-conductivity substance forming elements, and comprises at least one of Al, Ti Hf, Zr, Er, Nb and Ce, and the mass fraction of the C element is 2-10%; the element D is one of elements forming low heat conduction substances, comprises at least one of Ge, Cu, Si and Te, and has the mass fraction of 0.1-10%; the B element is one of the elements forming the low-heat-conduction substance, is the main component of the low-melting-point material matrix, comprises at least one of Sn, Sb, Bi, In and Ga, and has the mass fraction as the balance. The invention also provides vacuum glass, two adjacent pieces of glass are connected together through a metal sealing layer, and the metal sealing layer is made of the sealing material.
Description
Technical Field
The invention relates to vacuum glass applied to the fields of buildings, electric appliances and automobiles.
Background
Vacuum glass formed by compounding a plurality of glass plates is also a subject of competitive research because of its outstanding sound-insulating, heat-insulating and heat-preserving properties.
The existing sealing method of vacuum glass mainly comprises the following steps:
(1) and melting and sealing by using low-melting-point glass frit. The sealing temperature is generally about 400-500 ℃, and the low-melting-point glass frit is melted by flame or electric heat to complete the composite sealing between the glass plates. The process temperature exceeds 300 ℃, the strength of the toughened glass is reduced in the production process, and various defects are easily generated. When it exceeds 480 ℃, the strength of the tempered glass is permanently lowered, resulting in poor safety of the product. In addition, the low-melting glass adopted by the process is usually lead-zinc (PbO-ZnO) sealing glass, the material is not beneficial to environmental protection requirements for long-term development due to the harm of lead to the environment and human bodies, meanwhile, the processing equipment and the process are complex, the glass plate after composite sealing is often subjected to edge thermal stress, and therefore appropriate annealing treatment is carried out, and the production effect is greatly reduced. Although the frit has a low thermal conductivity, its relatively high gas permeability makes the vacuum glass less insulating.
(2) And sealing by adopting sintering type metal slurry. The sintering temperature of the metal slurry is above 500 ℃, then solder is placed in the middle of the sintering layer, and finally sealing is carried out through a metal brazing process. In the production process, the sintering temperature exceeds 480 ℃, which causes permanent reduction of the strength of the tempered glass, but the tempered glass must be tempered again in the subsequent process and is welded by adding a solder, so that the process is complicated and the safety of the glass is poor. The vacuum glass has poor heat insulation due to a large amount of high-heat-conductivity metal in the metal paste.
(3) Various plastics and resin materials are used for composite sealing between glass plates. Patent documents mention the use of organic glasses, such as: PC, ABS, LDPE, PVC, etc., and in other patent documents, PVB, EVA (EN), etc. are used as materials for making laminated glass, and the processing method is that the above materials are placed between two glass plates to make a prefabricated member, and then the prefabricated member is placed under proper conditions and pressed to obtain the laminated glass. This process is similar to the process of making laminated glass, although it can realize composite sealing between glass plates, most plastics and resin materials have gas permeability and moisture permeability much higher than that of glass, and most organic materials are only physically adhered to the glass surface, so it is difficult to ensure that the joint is not leaked, and once gas (including water vapor) is leaked, the sealing strength is weakened, dewing in the interlayer and glass mildew are directly caused. In addition, the aging problem of the organic material also directly affects the sealing effect and the service life of the composite glass plate with the lapse of time.
(4) The vacuum glass is sealed by adopting the multi-layer low-melting-point brazing material, although the sealing temperature is low and the glass toughening temperature is ensured, the strength of the welding material is low, so that the sealing material is easy to generate defects under the condition that the vacuum glass bears the force, and the vacuum glass product fails. And because of the multilayer structure, delamination can occur in certain failure situations. The main components of the metal also make the vacuum glass have poor heat insulation.
Disclosure of Invention
The invention aims to provide a sealing material for vacuum glass, which has the characteristic of low heat conduction.
In order to solve the technical problems, the invention provides a low-heat-conduction sealing material for vacuum glass, which is a quaternary sealing material A-B-C-D;
wherein the element A is one of elements forming low heat conduction substances, and comprises at least one of Ag, Ba and Mg, and the mass fraction is 1-8%; the C element is one of low-heat-conductivity substance forming elements, and comprises at least one of Al, Ti Hf, Zr, Er, Nb and Ce, and the mass fraction of the C element is 2-10%; the element D is one of elements forming low heat conduction substances, comprises at least one of Ge, Cu, Si and Te, and has the mass fraction of 0.1-10%; the B element is one of the elements forming the low-heat-conduction substance, is the main component of the low-melting-point material matrix, comprises at least one of Sn, Sb, Bi, In and Ga, and has the mass fraction as the balance.
In a preferred embodiment: the quaternary sealing materialThe chemical formula A is generated in situ in the cooling process after melting8B1-xCxD6、A8B16-xCxD30High complexity low thermal conductivity material.
The invention also provides vacuum glass, two adjacent pieces of glass are connected together through a metal sealing layer, and the metal sealing layer is made of the sealing material.
In a preferred embodiment: and one side of the metal sealing layer, which is close to the periphery of the glass, is filled with a circle of sealant along the circumferential direction.
In a preferred embodiment: the sealant is silicone or epoxy structural adhesive.
In a preferred embodiment: the metal sealing layer is far away from one side of the periphery of the glass, and a vacuum chamber is formed between the two pieces of glass;
and supports for supporting the upper glass block and the lower glass block are uniformly arranged in the vacuum chamber.
In a preferred embodiment: the supports are arranged in a square or diamond shape with equal intervals.
In a preferred embodiment: the support is transparent ceramic beads or reinforced glass beads or stainless steel beads.
In a preferred embodiment: and a circle of glass glaze ridges are symmetrically arranged on the opposite surfaces of the two adjacent pieces of glass.
In a preferred embodiment: the vacuum glass is multilayer vacuum glass or curved surface vacuum glass.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the vacuum glass is sealed by using a material which can generate substances with high complexity and low heat conductivity coefficient in situ, so that the vacuum glass with good heat insulation performance is obtained.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely described below; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements.
A low-heat-conductivity sealing material for vacuum glass is disclosed, wherein the sealing material is a quaternary sealing material A-B-C-D;
wherein the element A is one of elements forming low heat conduction substances, and comprises at least one of Ag, Ba and Mg, and the mass fraction is 1-8%; the C element is one of low-heat-conductivity substance forming elements, and comprises at least one of Al, Ti Hf, Zr, Er, Nb and Ce, and the mass fraction of the C element is 2-10%; the element D is one of elements forming low heat conduction substances, comprises at least one of Ge, Cu, Si and Te, and has the mass fraction of 0.1-10%; the B element is one of the elements forming the low-heat-conduction substance, is the main component of the low-melting-point material matrix, comprises at least one of Sn, Sb, Bi, In and Ga, and has the mass fraction as the balance.
The heat conductivity coefficient of the conventional low-melting-point metal sealing solder is 45-100W/m.K.
The quaternary sealing material can generate a chemical formula A in situ in the cooling process after melting8B1-xCxD6、 A8B16- xCxD30High complexity low thermal conductivity material. For example Ag8Sn1-xAlxTe6、Ba8Ga13Ti3Si30And the like. Thus leading the welding material to have the characteristics of low melting point and low heat conductivity coefficient,the vacuum glass sealing process is simple and the heat insulation performance is good.
In this embodiment, three welding materials with different proportions are provided, and the thermal conductivity coefficients of the three welding materials are respectively measured:
1) the proportion of the four elements is 2 percent of Ag, 95 percent of Sn, 1 percent of Al and 2 percent of Te, and the heat conductivity coefficient of the sealing material at normal temperature is tested to be 31.2W/m.K.
2) The mixture ratio of the four elements is 1 percent of Ba- (90 percent of Sn +3.7 percent of In) -1.5 percent of Zr- (3 percent of Ge +0.8 percent of In), and the heat conductivity coefficient test of the sealing material at normal temperature is 28.5W/m.K.
3) The proportion of the four elements is (3% Ag + 0.5% Mg) - (86.5% Sn + 5% Bi) -2% Ce-3% Si, and the test of the heat conductivity coefficient of the sealing material at normal temperature is 21.8W/m.K.
It can be seen that the thermal conductivity of all three solder materials is much lower than that of the conventional low melting point metal sealing solder.
The embodiment also provides vacuum glass, two adjacent pieces of glass are connected together through a metal sealing layer, and the metal sealing layer is made of the sealing material.
And one side of the metal sealing layer, which is close to the periphery of the glass, is filled with a circle of sealant along the circumferential direction. The sealant is silicone or epoxy structural adhesive.
The sealant enables the metal sealing layer to be far away from one side of the periphery of the glass, and a vacuum chamber is formed between the two pieces of glass; the glass on the upper layer has an integral upper surface and the glass on the lower layer has an integral lower surface.
In order to increase the strength of the vacuum glass, supports for supporting the upper glass and the lower glass are uniformly arranged in the vacuum chamber. The supports are arranged in a square or diamond shape with equal intervals. The support is transparent ceramic beads or reinforced glass beads or stainless steel beads.
And finally, a circle of glass glaze ridges are symmetrically arranged on the opposite surfaces of the two adjacent pieces of glass.
By the vacuum glass, a vacuum glass product of multi-layer vacuum glass or curved vacuum glass can be obtained.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (10)
1. The low-heat-conduction sealing material for vacuum glass is characterized in that: the sealing material is a quaternary system sealing material A-B-C-D;
wherein the element A is one of elements forming low heat conduction substances, and comprises at least one of Ag, Ba and Mg, and the mass fraction is 1-8%; the C element is one of low-heat-conductivity substance forming elements, and comprises at least one of Al, Ti Hf, Zr, Er, Nb and Ce, and the mass fraction of the C element is 2-10%; the element D is one of elements forming low heat conduction substances, comprises at least one of Ge, Cu, Si and Te, and has the mass fraction of 0.1-10%; the B element is one of the elements forming the low-heat-conduction substance, is the main component of the low-melting-point material matrix, comprises at least one of Sn, Sb, Bi, In and Ga, and has the mass fraction as the balance.
2. The low thermal conductivity sealing material for vacuum glass according to claim 1, wherein: the quaternary sealing material can generate a chemical formula A in situ in the cooling process after melting8B1-xCxD6、A8B16-xCxD30High complexity low thermal conductivity material.
3. A vacuum glass is characterized in that: two adjacent pieces of glass are connected together by a metal sealing layer, and the metal sealing layer is made of the sealing material as claimed in claim 1 or 2.
4. A vacuum glass according to claim 3, wherein: and one side of the metal sealing layer, which is close to the periphery of the glass, is filled with a circle of sealant along the circumferential direction.
5. A vacuum glass according to claim 4, wherein: the sealant is silicone or epoxy structural adhesive.
6. A vacuum glass according to claim 5, wherein: the metal sealing layer is far away from one side of the periphery of the glass, and a vacuum chamber is formed between the two pieces of glass;
and supports for supporting the upper glass block and the lower glass block are uniformly arranged in the vacuum chamber.
7. The vacuum glass according to claim 6, wherein: the supports are arranged in a square or diamond shape with equal intervals.
8. The vacuum glass according to claim 6, wherein: the support is transparent ceramic beads or reinforced glass beads or stainless steel beads.
9. A vacuum glass according to claim 3, wherein: and a circle of glass glaze ridges are symmetrically arranged on the opposite surfaces of the two adjacent pieces of glass.
10. A vacuum glass according to any of claims 3-9, characterized in that: the vacuum glass is multilayer vacuum glass or curved surface vacuum glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215891.4A CN113001054A (en) | 2020-11-04 | 2020-11-04 | Low-thermal-conductivity sealing material of vacuum glass and vacuum glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215891.4A CN113001054A (en) | 2020-11-04 | 2020-11-04 | Low-thermal-conductivity sealing material of vacuum glass and vacuum glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113001054A true CN113001054A (en) | 2021-06-22 |
Family
ID=76383002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011215891.4A Pending CN113001054A (en) | 2020-11-04 | 2020-11-04 | Low-thermal-conductivity sealing material of vacuum glass and vacuum glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113001054A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120321821A1 (en) * | 2009-11-27 | 2012-12-20 | Luoyang Landglass Technology Co., Ltd | Method for Sealing Vacuum Glass and Vacuum Glass Product |
| CN104478202A (en) * | 2014-12-19 | 2015-04-01 | 洛阳兰迪玻璃机器股份有限公司 | Vacuum glass sealing method and vacuum glass product |
| CN204298238U (en) * | 2014-12-19 | 2015-04-29 | 洛阳兰迪玻璃机器股份有限公司 | A kind of sealing structure of vacuum glass and vacuum glass product thereof |
| CN105906222A (en) * | 2016-07-05 | 2016-08-31 | 洛阳兰迪玻璃机器股份有限公司 | Tempered vacuum glass |
-
2020
- 2020-11-04 CN CN202011215891.4A patent/CN113001054A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120321821A1 (en) * | 2009-11-27 | 2012-12-20 | Luoyang Landglass Technology Co., Ltd | Method for Sealing Vacuum Glass and Vacuum Glass Product |
| US20130004685A1 (en) * | 2009-11-27 | 2013-01-03 | Luoyang Landglass Technology Co., Ltd | Method for Sealing Curved Vacuum Glass and Curved Vacuum Glass |
| CN104478202A (en) * | 2014-12-19 | 2015-04-01 | 洛阳兰迪玻璃机器股份有限公司 | Vacuum glass sealing method and vacuum glass product |
| CN204298238U (en) * | 2014-12-19 | 2015-04-29 | 洛阳兰迪玻璃机器股份有限公司 | A kind of sealing structure of vacuum glass and vacuum glass product thereof |
| CN105906222A (en) * | 2016-07-05 | 2016-08-31 | 洛阳兰迪玻璃机器股份有限公司 | Tempered vacuum glass |
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Application publication date: 20210622 |