CN101386728A - High-temperature insulation coating material based on 304 stainless steel substrate - Google Patents
High-temperature insulation coating material based on 304 stainless steel substrate Download PDFInfo
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- CN101386728A CN101386728A CNA2007101544794A CN200710154479A CN101386728A CN 101386728 A CN101386728 A CN 101386728A CN A2007101544794 A CNA2007101544794 A CN A2007101544794A CN 200710154479 A CN200710154479 A CN 200710154479A CN 101386728 A CN101386728 A CN 101386728A
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Abstract
The invention relates to a high-temperature resistant insulated coating material based on a 304 stainless steel base material. The high-temperature resistant insulated coating material consists of glass ceramic powder and an organic carrier which have mass percentage of between 60 and 80 percent and between 20 and 40 percent. A component of the glass ceramic powder is BaO-Al2O3-SiO2 system microcrystalline glass which comprises the following components in mass percentage: 20 to 60 percent of BaO, 30 to 70 percent of SiO2, 5 to 30 percent of Al2O3, 1 to 15 percent of B2O3, 0 to 5 percent of CaO, 0 to 5 percent of Fe2O3, 1 to 5 percent of Co2O3, 1 to 5 percent of TiO2 and 1 to 5 percent of ZrO2. The organic carrier is formed by dissolving butyl carbitol, tributyl citrate, 1, 4-butyrolactone, ethyl cellulose, hydrogenated castor oil and lecithin; and the organic carrier comprises the components in mass percentage: 30 to 80 percent of the butyl carbitol, 5 to 30 percent of the tributyl citrate, 0.1 to 10 percent of the 1, 4-butyrolactone, 0.5 to 10 percent of the ethyl cellulose, 0.1 to 5 percent of the hydrogenated castor oil and 0.1 to 5 percent of the lecithin. A preparation process comprises the following steps: A. microcrystalline glass powder is prepared: according to the mixture ratio, the raw materials are evenly mixed in a mixer, are positioned in a high-temperature electric furnace and are subjected to smelting, water quenching and ball milling; B. the organic carrier is prepared; and C. according to the proportion, the microcrystalline glass powder and the organic carrier are positioned in a container, stirred and dispersed and are subjected to high-speed emulsification to obtain the coating material.
Description
Technical field
The present invention relates to high-temperature insulation coating material based on the glass-ceramic system of 304 stainless steel substrates.
Background technology
Use based on the high-temperature insulation coating material of the glass-ceramic system of 430 stainless steel substrates is existing both at home and abroad, generally adopt SiO
2-B
2O
3-Al
2O
3-CaO-Bi
2O
3Microcrystalline glass in series, but the high-temperature insulation coating material based on the glass-ceramic system of 304 stainless steel substrates does not have associated materials to be developed success because of the thermal expansion coefficient difference between coated material and 304 stainless steel substrates is excessive, 304 materials have excellent corrosion resistance nature, be widely used in electric heating apparatus, be applied to thick film electrical heating element based on 304 stainless steel substrates so press for high-temperature insulation coating material based on the glass-ceramic system of 304 stainless steel substrates.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of effective insulating coating material for 304 stainless steel substrates; That 304 stainless steel substrates that prepare coating have is high temperature resistant, electrical isolation, performance such as corrosion-resistant, wear-resistant, can be used for petrochemical pipe protection, electronic devices and components substrate, high-power thick film electrical heating element substrate etc.
The present invention solves the problems of the technologies described above the employing following technical proposal, high-temperature insulation coating material based on 304 stainless steel substrates of the present invention, be characterized in it by solid components and organic carrier by certain preparation technology's gained, the weight ratio of solid components and organic carrier is 60～80%:20～40%.Glass ceramic powder as solid components is scattered in the organic carrier equably, organic carrier is selected polycomponent main solvent system for use, with the main solvent rational proportion of different boiling and evaporation rate to better meet dispersion and the related coatings preparation technology requirement of glass ceramic powder in organic carrier.
Solid components of the present invention is BaO-Al
2O
3-SiO
2Microcrystalline glass in series, each constituent mass degree is BaO:20～60%, SiO
2: 30～70%, Al
2O
3: 5～30%, B
2O
3: 1～15%, CaO:0～5%, Fe
2O
3: 0～5%, Co
2O
3: 1～5%, TiO
2: 1～5%, ZrO
2: 1～5%; The weight ratio of each raw material is in the described organic carrier: diethylene glycol monobutyl ether: 30～80%, tributyl citrate: 5～30%, 1,4-butyrolactone: 0.1～10%, ethyl cellulose: 0.5～10%, hydrogenated castor oil: 0.1～5%, Yelkin TTS: 0.1～5%.
The preparation technology of the high-temperature insulation coating material based on 304 stainless steel substrates of the present invention is:
1. prepare the glass micro mist
Weighing following raw materials according by mass percentage: BaO:20～60%, SiO
2: 30～70%, Al
2O
3: 5～30%, B
2O
3: 1～15%, CaO:0～5%, Fe
2O
3: 0～5%, Co
2O
3: 1～5%, TiO
2: 1～5%, ZrO
2: 1～5%; Mix in mixer and be placed on the high-temperature electric resistance furnace melting, smelting temperature is 1200～1600 ℃, and soaking time is 1～6 hour, and shrend after the melting obtains the glass slag; Place the ball mill ball milling to obtain the micro mist that particle diameter is not more than 5 microns the glass slag.
2. preparation organic carrier
Organic solvent and thickening material, tensio-active agent, thixotropic agent are mixed by a certain percentage, in 80～100 ℃ of dissolvings 5～8 hours, all kinds of raw materials and proportioning are: diethylene glycol monobutyl ether: 30～80%, tributyl citrate: 5～30%, 1,4-butyrolactone: 0.1～10%, ethyl cellulose: 0.5～10%, hydrogenated castor oil: 0.1～5%, Yelkin TTS: 0.1～5%.Adjust content of cellulose, make the organic binder bond viscosity controller in 200～300mPas scope.
3. the aforementioned glass micro mist that makes and organic binder bond are placed in the ratio of 60～80%:20～40% and carry out emulsify at a high speed after the container dispersed with stirring and get product.
Major advantage of the present invention is:
1. by to reasonable analysis, select for use devitrified glass as solid components based on basic demands such as physics, chemical property and the processing performance of the high-temperature insulation coating material of 304 stainless steel substrates and environmental protection.By the composition design, to BaO-Al
2O
3-SiO
2Microcrystalline glass formula and melting, ball-milling technology are determined in systematic studyes such as the microcrystalline glass in series coefficient of expansion, second-order transition temperature, softening temperature, crystallite forming core growth dynamics, make it to satisfy and 304 stainless steel substrate physicochemical properties coupling and service requirements.
2. further investigate BaO-Al
2O
3-SiO
2Microcrystalline glass in series crystallization kinetics is quantitatively measured and control mutually mutually, by formulating rational sintering process, accurately controls BaO-Al
2O
3-SiO
2The amount of separating out of the high expansion phase of microcrystalline glass in series makes that the thermal expansivity of coated material is littler by 10～20% than the 304 stainless steel hot coefficients of expansion.
3. based on reasonable understanding to each organic composition mechanism of action in the coated material, select for use the polycomponent main solvent to replace traditional single component main solvent, with the main solvent rational proportion of different boiling and evaporation rate to better meet dispersion and the related coatings preparation technology requirement of glass ceramic powder in organic carrier.
Embodiment
Embodiment 1: the high-temperature insulation coating 1, the microcrystalline glass formula that are used for 304 series stainless steel base materials: BaO:50%, SiO
2: Al 24%,
2O
3: B 5%,
2O
3: 6%, CaO:4%, Co
2O
3: TiO 1%,
2: ZrO 6%,
2: 4%;
2, glass melting technology: 1500 ℃, be incubated 2 hours;
3, ball milling and granularity control: with the vibromill corase grind, it is 3～5 microns that the back is finely ground to median size with planetary ball mill or agitating ball mill;
4, organic adhesive agent prescription and dissolution process: diethylene glycol monobutyl ether: tributyl citrate 65%: ethyl cellulose 30%: 1,4-butyrolactone 3.5%: hydrogenated castor oil 0.5%: Yelkin TTS 0.5%: 0.5%.It is insulation 5 hours in 80～90 ℃ the water-bath in temperature that dissolution process mixes the back for each component that will prepare in proportion.
5, size mixing technology: carry out emulsify at a high speed after glass powder and organic binder bond placed the container dispersed with stirring by weight 71: 29.
6, coating performance:
Electric property when on stainless steel substrate, burning till thickness greater than 80 microns
| Color | Solid content | Viscosity 10RPM | Meshcount | Firing process | Thinner |
| Sky-blue | 70％ | 20±2Pas | 135 orders | 850℃ | Diethylene glycol monobutyl ether |
| Disruptive strength | Insulation resistance | Leakage current |
| >1500VAC | >10MΩ(500VDC) | <0.5mA(250VDC) |
Embodiment 2: the high-temperature insulation coating that is used for 304 series stainless steel base materials
1, microcrystalline glass formula: BaO:53%, SiO
2: Al 28%,
2O
3: B 3%,
2O
3: Fe 6%,
2O
3: Co 2%,
2O
3: TiO 2%,
2: ZrO 4%,
2: 2%;
2, glass melting technology: 1450 ℃, be incubated 2.5 hours;
3, ball milling and granularity control: with the vibromill corase grind, it is 3～5 microns that the back is finely ground to median size with planetary ball mill or agitating ball mill;
4, organic adhesive agent prescription and dissolution process: diethylene glycol monobutyl ether: tributyl citrate 75%: ethyl cellulose 20%: 1,4-butyrolactone 4%: hydrogenated castor oil 0.5%: 0.5%.It is insulation 5 hours in 80～90 ℃ the water-bath in temperature that dissolution process mixes the back for each component that will prepare in proportion.
5, size mixing technology: carry out three-roll rolling after glass powder and organic binder bond placed the container dispersed with stirring by weight 75: 25.
6, size performance:
Electric property when on stainless steel substrate, burning till thickness greater than 80 microns
| Color | Solid content | Viscosity 10RPM | Meshcount | Firing process | Thinner |
| Light grey | 76％ | 25±2Pas | 135 orders | 850℃ | Diethylene glycol monobutyl ether |
| Disruptive strength | Insulation resistance | Leakage current |
| >1500VAC | >10MΩ(500VDC) | <0.5mA(250VDC) |
Claims (4)
1, a kind of high-temperature insulation coating material that is applicable to 304 stainless steel substrates is characterized in that: coated material is pressed certain preparation technology's gained by solid components and organic carrier, and the weight ratio of solid components and organic carrier is 60～80%:20～40%.
2, the high-temperature insulation coating material that is applicable to 304 stainless steel substrates according to claim 1, it is characterized in that: the solid components composition of coated material is BaO-Al
2O
3-SiO
2Microcrystalline glass in series, each mass percent of forming oxide compound is BaO:20～60%, SiO
2: 30～70%, Al
2O
3: 5～30%, B
2O
3: 1～15%, CaO:0～5%, Fe
2O
3: 0～5%, Co
2O
3: 1～5%, TiO
2: 1～5%, ZrO
2: 1～5%.
3, the high-temperature insulation coating material that is applicable to 304 stainless steel substrates according to claim 1, it is characterized in that: the organic carrier of coated material is by diethylene glycol monobutyl ether, tributyl citrate, 1,4-butyrolactone, ethyl cellulose, hydrogenated castor oil, Yelkin TTS fuse and form, and the mass percent of each component is a diethylene glycol monobutyl ether: 30～80%; Tributyl citrate: 5～30%, 1,4-butyrolactone: 0.1～10%, ethyl cellulose: 0.5～10%, hydrogenated castor oil: 0.1～5%, Yelkin TTS: 0.1～5%.
4, the high-temperature insulation coating material that is applicable to 304 stainless steel substrates according to claim 1 is characterized in that: the glass ceramic powder as solid components is scattered in the organic carrier equably, and organic carrier is a multicomponent system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101544794A CN101386728A (en) | 2007-09-13 | 2007-09-13 | High-temperature insulation coating material based on 304 stainless steel substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101544794A CN101386728A (en) | 2007-09-13 | 2007-09-13 | High-temperature insulation coating material based on 304 stainless steel substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101386728A true CN101386728A (en) | 2009-03-18 |
Family
ID=40476411
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101544794A Pending CN101386728A (en) | 2007-09-13 | 2007-09-13 | High-temperature insulation coating material based on 304 stainless steel substrate |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805125A (en) * | 2010-03-11 | 2010-08-18 | 西安创联轮德器件有限公司 | Insulating glass medium slurry for 430 stainless steel and preparation method thereof |
| CN102494224A (en) * | 2011-11-25 | 2012-06-13 | 中原工学院 | Anticorrosive glass ceramic-internally coated pipe line steel |
| CN101613209B (en) * | 2009-07-16 | 2013-02-06 | 中国人民解放军国防科学技术大学 | High temperature anti-oxidation coating and slurry for same of Cf/SiC composite material and preparation method thereof |
| CN102070299B (en) * | 2009-11-23 | 2013-05-01 | 中国科学院过程工程研究所 | Protective technology of stainless steel high-temperature surface |
| CN104862689A (en) * | 2015-05-22 | 2015-08-26 | 苏州市嘉明机械制造有限公司 | Long-life heat-and-pressure-resistant insulating coating for mirror plate |
| CN105084762A (en) * | 2014-05-12 | 2015-11-25 | 中国科学院过程工程研究所 | Coating with high temperature thermal shock resistance and thermal etching resistance for stainless steel and heat resistant steel and preparation method thereof |
| CN107056335A (en) * | 2017-05-11 | 2017-08-18 | 天津大学 | Porous ceramic surface compact silicon nitride coating and preparation method thereof |
| CN108695734A (en) * | 2018-06-06 | 2018-10-23 | 荣马电器有限公司 | A kind of fire resistant distribution box |
| CN110759720A (en) * | 2018-07-26 | 2020-02-07 | 新奥科技发展有限公司 | Stainless steel coating, preparation method of stainless steel coating and preparation method of solid phase component |
| CN111040480A (en) * | 2019-12-24 | 2020-04-21 | 东南大学 | Anti-coking non-stick composite coating and preparation method thereof |
| CN111528529A (en) * | 2020-04-30 | 2020-08-14 | 四川三联新材料有限公司 | Heating element of heating appliance and preparation method thereof |
| CN112221901A (en) * | 2020-09-30 | 2021-01-15 | 海南博展实业有限公司 | Spraying process for steel surface |
| CN116543952A (en) * | 2023-03-16 | 2023-08-04 | 宁波万泓科技有限公司 | Insulating medium slurry, preparation method thereof, thick film resistor and electronic product |
-
2007
- 2007-09-13 CN CNA2007101544794A patent/CN101386728A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613209B (en) * | 2009-07-16 | 2013-02-06 | 中国人民解放军国防科学技术大学 | High temperature anti-oxidation coating and slurry for same of Cf/SiC composite material and preparation method thereof |
| CN102070299B (en) * | 2009-11-23 | 2013-05-01 | 中国科学院过程工程研究所 | Protective technology of stainless steel high-temperature surface |
| CN101805125A (en) * | 2010-03-11 | 2010-08-18 | 西安创联轮德器件有限公司 | Insulating glass medium slurry for 430 stainless steel and preparation method thereof |
| CN101805125B (en) * | 2010-03-11 | 2011-12-07 | 西安创联宏晟电子有限公司 | Insulating glass medium slurry for 430 stainless steel and preparation method thereof |
| CN102494224A (en) * | 2011-11-25 | 2012-06-13 | 中原工学院 | Anticorrosive glass ceramic-internally coated pipe line steel |
| CN105084762B (en) * | 2014-05-12 | 2018-01-02 | 中国科学院过程工程研究所 | A kind of coating of high temperature anti-thermal shock and corrosion and heat resistant for stainless steel and refractory steel and preparation method thereof |
| CN105084762A (en) * | 2014-05-12 | 2015-11-25 | 中国科学院过程工程研究所 | Coating with high temperature thermal shock resistance and thermal etching resistance for stainless steel and heat resistant steel and preparation method thereof |
| CN104862689A (en) * | 2015-05-22 | 2015-08-26 | 苏州市嘉明机械制造有限公司 | Long-life heat-and-pressure-resistant insulating coating for mirror plate |
| CN107056335A (en) * | 2017-05-11 | 2017-08-18 | 天津大学 | Porous ceramic surface compact silicon nitride coating and preparation method thereof |
| CN107056335B (en) * | 2017-05-11 | 2020-08-18 | 天津大学 | Porous ceramic surface compact silicon nitride coating and preparation method thereof |
| CN108695734A (en) * | 2018-06-06 | 2018-10-23 | 荣马电器有限公司 | A kind of fire resistant distribution box |
| CN110759720A (en) * | 2018-07-26 | 2020-02-07 | 新奥科技发展有限公司 | Stainless steel coating, preparation method of stainless steel coating and preparation method of solid phase component |
| CN110759720B (en) * | 2018-07-26 | 2022-09-09 | 新奥科技发展有限公司 | Stainless steel coating, preparation method of stainless steel coating and preparation method of solid phase component |
| CN111040480A (en) * | 2019-12-24 | 2020-04-21 | 东南大学 | Anti-coking non-stick composite coating and preparation method thereof |
| CN111528529A (en) * | 2020-04-30 | 2020-08-14 | 四川三联新材料有限公司 | Heating element of heating appliance and preparation method thereof |
| CN112221901A (en) * | 2020-09-30 | 2021-01-15 | 海南博展实业有限公司 | Spraying process for steel surface |
| CN116543952A (en) * | 2023-03-16 | 2023-08-04 | 宁波万泓科技有限公司 | Insulating medium slurry, preparation method thereof, thick film resistor and electronic product |
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Application publication date: 20090318 |