CN102351426A - Glass-mica composite material, manufacturing method and application thereof - Google Patents
Glass-mica composite material, manufacturing method and application thereof Download PDFInfo
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- CN102351426A CN102351426A CN201110245867XA CN201110245867A CN102351426A CN 102351426 A CN102351426 A CN 102351426A CN 201110245867X A CN201110245867X A CN 201110245867XA CN 201110245867 A CN201110245867 A CN 201110245867A CN 102351426 A CN102351426 A CN 102351426A
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Abstract
The invention relates to a glass-mica composite material, which is composed of 35-60 wt% of glass and 40-65 wt% of mica and has a coefficient of thermal expansion of 13.0*10<-6>K<-1>-17.0*10<-6>K<-1>. The glass-mica composite material of the invention has a coefficient of thermal expansion closer to the linear expansion coefficient of metal materials, and not only well solves the CTE (coefficient of thermal expansion) matching problem between insulating materials and metal inserts, but also overcomes the problem of insulator failure resulted from a thermal shock process, thus improving the work stability of insulation products in various temperature environments.
Description
Technical field
The invention belongs to a kind of inorganic insulating material, relate in particular to a kind of material, method of manufacture and application thereof that mainly is composited by glass and mica.
Background technology
Insulator is the important base components of power transmission and electric locomotive, can be divided into porcelain insulator, glass insulator, composite insulator according to the difference of manufactured materials.Porcelain insulator adopts mud compacting, agglomerating stupalith to make isolator, uses early, uses extensively, but because its material internal homogenizes and surperficial rigidity is difficult to be guaranteed, is losing its dominant position.It is insulating part that glass insulator adopts softening temperature height, stable borosilicate or the aluminosilicate toughened glass of physical and chemical performance homogeneous, have good mechanical properties and good heat-resisting temperature difference performance, but glass insulator self-destruction rate is high.Composite insulator adopts epoxy resin and spun glass as plug; The insulator that organo-silicone rubber constitutes as umbrella sheath; Have characteristics such as volume is little, in light weight, anti-soil dodges, ageing-resistant, be widely used abroad, be used for power transmission and electric locomotive field in a large number; But the composite insulator linear expansivity is high, not high-low temperature resistant circulation and high temperature ageing.
Glass-ceramic is made up of microcrystalline mica phase and glassy phase, has than conventional ceramic and the better mechanicalness intensity of glass, workability and low electroconductibility, and micaceous exists can stop crack propagation, overcomes glass fragility.Glass-ceramic has the HS and the resistant to elevated temperatures advantage of glass and pottery concurrently, has good toughness simultaneously, has good insulation property, is particularly suitable for being used for the insulator manufacturing as insulating material.
Chinese invention patent application 200810239109.5 discloses a kind of making method of mica ceramics insulator, adopts glass and the presintering of mica high temperature, pulverizing, hot mastication and technological process such as molded.(CTE) is lower for the simple glass linear expansivity, usually 4 * 10
-6K
-1-11.5 * 10
-6K
-1, and stainless CTE is 14 * 10
-6K
-1-18 * 10
-6K
-1, both CTE have than big difference, and insulator is easy to generate internal stress in the thermal shock process, further bring out crackle, and insulating material breaks, and causes insulator to lose efficacy.US5284706 adopts high expansion coefficient glass to be used for the metal products encapsulation, preferably resolves the internal stress problem that produces in metal and the glass heat expansion process.
Summary of the invention
One object of the present invention is to provide a kind of glass mica combination, and being adopted as high CTE glass is raw material, is composited with mica.
Another object of the present invention is to provide a kind of method of manufacture of glass mica combination.
Another purpose of the present invention is to provide a kind of insulating composite material, is applied to fields such as power transmission, electric locomotive, high-speed railway and urban track traffic as insulating material.
The present invention adopts following technical scheme to realize: a kind of glass mica combination, to form by 35-60wt% glass and 40-65wt% mica, and linear expansivity is 13.0 * 10
-6K
-1-17.0 * 10
-6K
-1, mainly contain 30-44.5wt%P in the glass
2O
5, 10-33wt%ZnO, and the mixture of forming by alkalimetal oxide and alkaline earth metal oxide.
Alkalimetal oxide is the arbitrary form compound that metallic lithium (Li), sodium Metal 99.5 (Na), potassium metal (K), metal rubidium (Rb), metal caesium (Cs) and metal francium (Fr) and oxygen element form, as: Lithium Oxide 98min, sodium oxide, sodiumperoxide, potassium oxide, Potassium peroxide 85, rubidium oxide, peroxo-rubidium.Alkalimetal oxide of the present invention is selected from 0-10wt%Li
2O, 0-10wt%Na
2O and 0-8wt%K
2O a kind of or several kinds.
Alkaline earth metal oxide is the arbitrary form compound that metallic beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra) and oxygen element form, as: Natural manganese dioxide, beryllium oxide, quicklime, strontium oxide and barium oxide.Alkaline earth metal oxide is selected from a kind of of 0-20wt%CaO, 0-20wt%SrO and 0-20wt%BaO or several kinds.
Described glass also contains fluorine element a kind of or several kinds of CeO and 0-4.3wt% of PbO, the 0-2wt% of 0-20wt%.
Mica comprises natural mica and synthetic mica, and the synthetic mica refers to adopt industrial chemicals to pass through the mica of chemical reaction preparation, mainly comprises fluorophlogopite, fluorine calcium mica and fluorine roscoelite etc.
As a kind of example; Glass mica combination of the present invention can make through following method: the present invention also provides the making method of glass mica combination, comprises processes: (1) is with 50-200 order 35-60wt% glass powder and 20-100 purpose 40-65wt% mica powder ground and mixed; (2) afterwards at 100-350kg/cm
2Coldmoulding under the pressure, (the employing natural mica is a raw material, and temperature is not higher than 550 ℃ in calcining; When adopting the synthetic mica is raw material, and temperature is not higher than 700 ℃), cooling then pulverizes and processes 10-200 purpose glass mica combination fine powder.
With the glass mica combination that the present invention makes, be processed into all kinds of insulating products, especially contain the insulating products of metal, and be applied to fields such as power transmission, electric locomotive, high-speed railway and urban track traffic.
Glass mica combination of the present invention is particularly suitable for making insulator (CN101746280A), and it is formed through hot pressing by insulating composite material and metal insert, and the shape of insulator and size can design as required.The insulator outside surface scribbles hydrophobic organic resin coating, and organic resin can be a kind of of silicone resin, epoxy resin and urethane resin or several kinds.
A kind of making method of insulator comprises processes: (1) with glass mica combination at 100-350kg/cm
2Following coldmoulding, (the employing natural mica is a raw material, and temperature is not higher than 550 ℃ in heating; When adopting the synthetic mica is raw material, and temperature is not higher than 700 ℃), make glass mica combination softening, the remollescent glass mica combination is injected in the mould that presets metal insert, again after cooling, the moulding of annealing.
(2) apply organic resin coating at the outside surface of the insulator of cooling forming.
(3) heating makes the organic resin coating curing.
Glass-bonded mica insulator according to the invention has resistant to elevated temperatures characteristics, and shock resistance and resistance to heat shocks can be good, is suitable for indoor outer application the in fields such as power transmission, electric locomotive, high-speed railway, city underground.
Glass mica combination of the present invention, its linear expansivity are 13.0 * 10
-6K
-1-17.0 * 10
-6K
-1, more approaching with metallic substance, better solved the CTE matching problem between insulating material and the metal insert.Glass mica combination of the present invention can be convenient to the processing with metallic substance, has also overcome because the thermal shock process causes the insulator Problem of Failure, has improved the job stability of insulating products under all temps environment.
Embodiment
Embodiment 1
60 part of 100 purpose glass powder (is contained 1.8wt%Li
2O, 4.5wt%Na
2O, 4.3wt%K
2O, 8.9wt%ZnO, 6.1wt%CaO, 16.8wt%BaO, 0.4wt%Al
2O
3, 13.7wt%PbO and 43.5wt%P
2O
5Deng composition) mix in grinding in ball grinder with 40 part of 80 purpose fluorophlogopite, at 1500kg/cm
2Under the pressure, be cold-pressed into embryo, 700 ℃ of heating 12 hours, cooling was pulverized, and 80 orders sieve, and process glass mica combination 1, and linear expansivity is 16.1 * 10
-6K
-1
Embodiment 2
50 part of 100 purpose glass powder (is contained 2.0wt%Li
2O, 4.7wt%Na
2O, 4.4wt%K
2O, 18.4wt%ZnO, 7.9wt%CaO, 0.2wt%Al
2O
3, 15.8wt% Sb
2O
3And 46.6wt%P
2O
5Deng composition) mix in grinding in ball grinder with 50 part of 200 purpose fluorophlogopite, at 1500kg/cm
2Under the pressure, be cold-pressed into embryo, 700 ℃ of heating, cooling is pulverized, and 80 orders sieve, and process glass mica combination 2, and linear expansivity is 15.1 * 10
-6K
-1
Embodiment 3
45 part of 100 purpose glass powder (is contained 1.9wt%Li
2O, 5.6wt%Na
2O, 4.2wt%K
2O, 20.7wt%ZnO, 19.4wt%BaO, 8.3wt%Bi
2O
3And 39.9wt%P
2O
5Deng composition) mix in grinding in ball grinder with 55 part of 200 purpose fluorophlogopite, at 1500kg/cm
2Under the pressure, be cold-pressed into embryo, 700 ℃ of heating, cooling is pulverized, and 80 orders sieve, and process glass mica combination 3, and linear expansivity is 16.9 * 10
-6K
-1
Embodiment 4
40 part of 100 purpose glass powder (is contained 2.0wt%Li
2O, 7.0wt%Na
2O, 20.1wt%BaO, 5.2wt%Al
2O
3, 24.2wt%PbO, 4.3wt%F element and 41.5wt%P
2O
5Deng composition) mix in grinding in ball grinder with 60 part of 200 purpose natural muscovite, at 1500kg/cm
2Under the pressure, be cold-pressed into embryo, 540 ℃ of heating, cooling is pulverized, and 80 orders sieve, and process glass mica combination 4, and linear expansivity is 14.8 * 10
-6K
-1
Embodiment 5
With glass mica combination 1 powder at 2200kg/cm
2Down, be cold-pressed into embryo, after 700 ℃ of thermoplastics, be injected in the mould that presets metal insert, at 3000kg/cm
2Forming under the pressure, cooling, room temperature is reduced in 310 ℃ of annealing, is coated with organic silicone resin at its outside surface, and 180 ℃ of heating make glass-bonded mica insulator 1.This insulator has high temperature resistant characteristics, can tolerate thermal shock and impact, and has favorable shock resistance, can be at electric locomotive, city underground, high-speed railway life-time service.
Embodiment 6
With glass mica combination 3 powders at 2200kg/cm
2Down, be cold-pressed into embryo, after 700 ℃ of thermoplastics, be injected in the mould that presets metal insert, at 3200kg/cm
2Forming under the pressure, cooling, room temperature is reduced in 300 ℃ of annealing, is coated with organic silicone resin at its outside surface, and 180 ℃ of heating make glass-bonded mica insulator 2.This insulator has high temperature resistant characteristics, can tolerate thermal shock and impact, and has favorable shock resistance, can be at electric locomotive, city underground, high-speed railway life-time service.
Claims (10)
1. a glass mica combination is characterized in that being made up of 35-60wt% glass and 40-65wt% mica, and the linear expansivity of described glass mica combination is 13.0 * 10
-6K
-1-17.0 * 10
-6K
-1
2. glass mica combination according to claim 1 is characterized in that described glass mainly contains 30-44.5wt%P
2O
5, 10-33wt%ZnO, and the mixture of forming by alkalimetal oxide and alkaline earth metal oxide.
3. glass mica combination according to claim 1 is characterized in that described alkalimetal oxide is selected from 0-10wt%Li
2O, 0-10wt%Na
2O and 0-8wt%K
2O a kind of or several kinds.
4. glass mica combination according to claim 1 is characterized in that described alkaline earth metal oxide is selected from a kind of of 0-20wt%CaO, 0-20wt%SrO and 0-20wt%BaO or several kinds.
5. glass mica combination according to claim 1 is characterized in that described glass also contains fluorine element a kind of or several kinds of CeO and the 0-4.3wt% of the PbO of 0-20wt%, 0-2wt%.
6. glass mica combination according to claim 1 is characterized in that making through following method:
50-200 order 35-60wt% glass powder and 20-100 purpose 40-65wt% mica powder ground and mixed; Then at 100-350kg/cm
2Coldmoulding under the pressure, and calcining, cooling is then pulverized and is processed 10-200 purpose glass mica combination fine powder; The employing natural mica is a raw material, and described calcining temperature is not higher than 550 ℃; Employing synthetic mica is a raw material, and described calcining temperature is not higher than 700 ℃.
7. the described glass mica combination of claim 1 is used to make insulating products.
8. the described glass mica combination of claim 1 is used to make the insulating products in fields such as power transmission, electric locomotive, high-speed railway and urban track traffic.
9. according to claim 7 or 8 described glass mica combinations, it is characterized in that described insulating products is an insulator.
10. the purposes of glass mica combination according to claim 9 is characterized in that described insulator making method is following:
1) with insulating composite material at 100-350kg/cm
2Following coldmoulding is heated 400-700 ℃, makes insulating composite material softening, the remollescent insulating composite material is injected in the mould that presets metal insert, and again after cooling, the moulding of annealing;
2) apply organic resin coating at the outside surface of the insulator of cooling forming;
3) heating makes the organic resin coating curing; Heating temperature is no more than 300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110245867XA CN102351426A (en) | 2011-08-25 | 2011-08-25 | Glass-mica composite material, manufacturing method and application thereof |
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|---|---|---|---|
| CN201110245867XA CN102351426A (en) | 2011-08-25 | 2011-08-25 | Glass-mica composite material, manufacturing method and application thereof |
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| CN102351426A true CN102351426A (en) | 2012-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106380081A (en) * | 2016-08-29 | 2017-02-08 | 中国建筑材料科学研究总院 | Interface-enhanced workable ceramics and preparation method thereof |
| CN106380080A (en) * | 2016-08-29 | 2017-02-08 | 中国建筑材料科学研究总院 | Ion-enhanced workable ceramics and preparation method thereof |
| CN116589915A (en) * | 2023-07-17 | 2023-08-15 | 山东孚日宣威新材料科技有限公司 | Heat shielding coating material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5153151A (en) * | 1991-05-06 | 1992-10-06 | Corning Incorporated | High index fluorine-free phosphate glasses |
| JP2000185967A (en) * | 1998-12-24 | 2000-07-04 | Sumitomo Metal Mining Co Ltd | Composition for glass ceramic circuit board |
| CN101364454A (en) * | 2008-09-23 | 2009-02-11 | 陕西科技大学 | Thick-film circuit resistor paste based on aluminum insulation layer and preparation thereof |
| CN101746280A (en) * | 2008-12-09 | 2010-06-23 | 北京中材人工晶体有限公司 | Mica ceramic insulator for novel high-speed power car and manufacturing method thereof |
| WO2011033214A1 (en) * | 2009-09-17 | 2011-03-24 | Saint-Gobain Quartz S.A.S | Glass for insulating composition |
-
2011
- 2011-08-25 CN CN201110245867XA patent/CN102351426A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5153151A (en) * | 1991-05-06 | 1992-10-06 | Corning Incorporated | High index fluorine-free phosphate glasses |
| JP2000185967A (en) * | 1998-12-24 | 2000-07-04 | Sumitomo Metal Mining Co Ltd | Composition for glass ceramic circuit board |
| CN101364454A (en) * | 2008-09-23 | 2009-02-11 | 陕西科技大学 | Thick-film circuit resistor paste based on aluminum insulation layer and preparation thereof |
| CN101746280A (en) * | 2008-12-09 | 2010-06-23 | 北京中材人工晶体有限公司 | Mica ceramic insulator for novel high-speed power car and manufacturing method thereof |
| WO2011033214A1 (en) * | 2009-09-17 | 2011-03-24 | Saint-Gobain Quartz S.A.S | Glass for insulating composition |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106380081A (en) * | 2016-08-29 | 2017-02-08 | 中国建筑材料科学研究总院 | Interface-enhanced workable ceramics and preparation method thereof |
| CN106380080A (en) * | 2016-08-29 | 2017-02-08 | 中国建筑材料科学研究总院 | Ion-enhanced workable ceramics and preparation method thereof |
| CN106380080B (en) * | 2016-08-29 | 2019-02-01 | 中国建筑材料科学研究总院 | A kind of ion enhancing processable ceramic and preparation method thereof |
| CN106380081B (en) * | 2016-08-29 | 2019-02-01 | 中国建筑材料科学研究总院 | A kind of interface enhancing processable ceramic and preparation method thereof |
| CN116589915A (en) * | 2023-07-17 | 2023-08-15 | 山东孚日宣威新材料科技有限公司 | Heat shielding coating material and preparation method thereof |
| CN116589915B (en) * | 2023-07-17 | 2023-09-15 | 山东孚日宣威新材料科技有限公司 | Heat shielding coating material and preparation method thereof |
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Owner name: CAO WANRONG Free format text: FORMER OWNER: ZHEJIANG RONGTAI TECHNOLOGY INDUSTRY CO., LTD. Effective date: 20121221 |
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| CB03 | Change of inventor or designer information |
Inventor after: Cao Wanrong Inventor before: Wang Baohu Inventor before: Zheng Minmin Inventor before: Rao Lei Inventor before: Cao Meisheng Inventor before: Zhu Yang |
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Free format text: CORRECT: INVENTOR; FROM: WANG BAOHU ZHENG MINMIN RAO LEI CAO MEISHENG ZHU YANG TO: CAO WANRONG |
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Effective date of registration: 20121221 Address after: 314000, Feng Fei Road 1, Phoenix Town, Nanhu District, Zhejiang City, Jiaxing Province Applicant after: Cao Wanrong Address before: 314000, Feng Fei Road 1, Phoenix Town, Nanhu District, Zhejiang City, Jiaxing Province Applicant before: Zhejiang Rongtai Technology Enterprise Co., Ltd. |
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