CN103396706A - High-temperature far-infrared coating and preparation method thereof - Google Patents
High-temperature far-infrared coating and preparation method thereof Download PDFInfo
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- CN103396706A CN103396706A CN2013103780941A CN201310378094A CN103396706A CN 103396706 A CN103396706 A CN 103396706A CN 2013103780941 A CN2013103780941 A CN 2013103780941A CN 201310378094 A CN201310378094 A CN 201310378094A CN 103396706 A CN103396706 A CN 103396706A
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Abstract
The invention relates to a high-temperature far-infrared coating, belonging to the technical field of high temperature-resistant far-infrared coatings. The coating comprises the following components: zirconium silicate, aluminum titanate, refractory clay, bonite, titanium dioxide, black corundum, iron oxide, silicon carbide, alumina sol and carboxymethyl cellulose. All the components are weighed according to the mixture ratio and mixed to prepare a viscous suspension fluid. A construction process is as follows: a pretreatment solution is sprayed after surface deashing and a far-infrared energy-saving coating is further sprayed. The pretreatment solution is a water solution containing water glass and yellow dextrin. The coating disclosed by the invention can keep a high emission rate at high temperature, the emission rate can achieve 0.93, the using quantity of the coating per unit area is small, and the coating can be stored for a long time.
Description
Technical field
The present invention relates to a kind of high-temperature far infrared paint, belong to high temperature resistant far ultrared paint technical field.
Background technology
In utilizing the process of the energy, people have taked various effective measure, and energy-saving coatings is exactly one of them.Energy-saving coatings is on the heat transfer theory basis, in conjunction with electromagnetic theory, according to different substances, has different electromagnetic field rules.Filter out several middle material with high emissivity, infrared coating is for the High-temp. kiln inside coating, the energy of fuel is further activated, thereby reach energy-conservation purpose.External infrared coating mainly contains the ET-4 of Britain CRC company, U.S. CRC-10A, G-125 and SBE coating, CRC1100,1500 coating of Japan.They all take common metal oxide compound and transition metal oxide system as main, add a small amount of additive, through 1200 ℃ of calcinings, fragmentations, add caking agent formulated again, and its emittance can reach 0.9.To coat the main High-temp. kiln by industries such as metallurgy, machinery, petrochemical industry.CN1044255C discloses a kind of tobacco-roasting chamber coating, take SiC and Fe2O3 as major ingredient; CN86106391A and CN13644834A disclose respectively two kinds of infrared coatings, and SiC and clay are major ingredient.Although these coating of prior art have certain energy-saving effect, but all have to some extent following problem: one, emissivity of coatings is unstable, with temperature, raise, emission wavelength moves to short-wave band, as the ET-4 coating of Britain emittance 400 ℃ the time is greater than 0.9, and emittance is 0.84 when emittance is 0.85,1000 ℃ 800 ℃ the time; Two, the poor adhesive force of coating and matrix, easily come off, particularly and the sticking power between metallic matrix very poor, as the ET-4 coating of Britain when the metallic surface application of temperature can not be higher than 1100 ℃, otherwise can come off, this has seriously restricted the application of this coating on Industrial Boiler; Three, the suspension of coating is poor, and the shelf time is short, and long-time the placement can produce serious caking phenomenon.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of high-temperature far infrared paint is provided, and utilize micro-nano ultrafine powder to process the far ultrared paint that strengthens sticking power, and utilize pretreating reagent to strengthen the construction technology of coating and matrix adhesive force.
High-temperature far infrared paint component of the present invention is as follows, is weight part:
Zirconium silicate 1-200 part
Aluminium titanates 10-150 part
Fireclay 5-200 part
Bo Naite 1-50 part
Titanium dioxide 0-20 part
Black corundum 100-500 part
Ferric oxide 0-20 part
Silicon carbide 50-500 part
Aluminium colloidal sol 150-500 part
Carboxymethyl cellulose 0-50 part
Above each solid constituent size range is 0-20 μ m.
The preparation method of high-temperature far infrared paint of the present invention is as follows:
Above-mentioned each component is weighed by proportioning, mix, make thick suspension, get final product to obtain the high-temperature far infrared paint product.
The construction technology of high-temperature far infrared paint of the present invention is as follows:
1, surperficial deashing; 2, spary pretreatment liquid; 3, spary far infrared energy-saving coatings.
The aqueous solution that above-mentioned pretreatment liquid is water glass and yellow starch gum.
Optimality and the property indices of high-temperature far infrared paint of the present invention are as follows:
1. this coating adds Bo Naite (consisting of calcium hexaluminate) to have good alkali-resistivity and CO reductibility, suitable especially in the kiln of reductibility spraying use as the petrochemical industry pyrolyzer; In addition, coating of the present invention and matrix have the coefficient of expansion be close, and can strengthen adhesion strength and the heat-shock resistance of coating, prevent coming off of alternating hot and cold process floating coat.The specific performance index is: thermal expansivity (/ ℃): 9.7x10
-6, linear expansivity (%): 0.85, thermal conductivity (W/MK): 0.873.;
2. under coating high temperature of the present invention, aluminium colloidal sol reacts generation mullite phase with clay, forms Ceramic bond, and Stability Analysis of Structures, keep high emissivity, and emittance can reach 0.93;
3. when coating of the present invention is used, coat-thickness only needs 20-500um, has reduced widely the usage quantity of unit surface coating;
4. coating is not stratified during coating long-term storage of the present invention, without coacervation, has good thixotropy, during use, stirs and gets final product a little.
Embodiment
Embodiment 1: high temperature red place far away coating component is as follows, is weight part:
Zirconium silicate 1-200 part
Aluminium titanates 10-150 part
Fireclay 5-200 part
Bo Naite 1-50 part
Titanium dioxide 0-20 part
Black corundum 100-500 part
Ferric oxide 0-20 part
Silicon carbide 50-500 part
Aluminium colloidal sol 150-500 part
Carboxymethyl cellulose 0-50 part
Above each solid constituent size range is 0-20 μ m
.
The preparation method is as follows:
Above-mentioned each component is weighed by proportioning, mix, make thick suspension, get final product to obtain the high-temperature far infrared paint product.
Embodiment 4: high-temperature far infrared paint is used for the construction technology of ethane cracking furnace inwall:
The high-temperature far infrared paint component as described in Example 1, during construction, after surperficial deashing spary contain water glass with
The aqueous solution of yellow starch gum, and then spary far ultrared paint.
Claims (5)
1. high-temperature far infrared paint, is characterized in that, component is as follows, is weight part:
Zirconium silicate 1-200 part
Aluminium titanates 10-150 part
Fireclay 5-200 part
Bo Naite 1-50 part
Titanium dioxide 0-20 part
Black corundum 100-500 part
Ferric oxide 0-20 part
Silicon carbide 50-500 part
Aluminium colloidal sol 150-500 part
Carboxymethyl cellulose 0-50 part.
2. the preparation method of high-temperature far infrared paint claimed in claim 1, is characterized in that, each component is weighed by proportioning, mixes, and makes thick suspension.
3. the preparation method of high-temperature far infrared paint claimed in claim 3, is characterized in that, above-mentioned thick suspension is adopted to the nanometer ultrafining treatment, makes granularity reach 25-780nm, obtains nano grade high temperature far ultrared paint product.
4. the application of high-temperature far infrared paint claimed in claim 1, is characterized in that, construction technology is as follows:
The surface deashing, (2) spary pretreatment liquid, (3) spary far infrared energy-saving coatings.
5. the application of high-temperature far infrared paint as claimed in claim 4, is characterized in that, described pretreatment liquid is the aqueous solution that contains water glass and yellow starch gum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103780941A CN103396706A (en) | 2013-08-27 | 2013-08-27 | High-temperature far-infrared coating and preparation method thereof |
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| CN2013103780941A CN103396706A (en) | 2013-08-27 | 2013-08-27 | High-temperature far-infrared coating and preparation method thereof |
Publications (1)
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| CN103396706A true CN103396706A (en) | 2013-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098320A (en) * | 2014-07-19 | 2014-10-15 | 汤炼芳 | Anti-adhesion paint and preparation method thereof |
Citations (6)
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|---|---|---|---|---|
| CN86106391A (en) * | 1986-09-22 | 1988-04-06 | 张海龙 | A kind of manufacture method of far ultrared paint |
| CN1097780A (en) * | 1994-04-11 | 1995-01-25 | 陆必远 | Far infrared paint for tobacco-roasting chamber |
| CN1552779A (en) * | 2003-12-18 | 2004-12-08 | 周惠敏 | High-temperature far infrared paint and preparing method thereof |
| CN101974259A (en) * | 2010-10-13 | 2011-02-16 | 中国科学院理化技术研究所 | Method for preparing A1-doped SiC powder infrared radiation coating |
| CN102718448A (en) * | 2012-04-28 | 2012-10-10 | 深圳市爱思宝科技发展有限公司 | Glaze and method for forming glaze layer |
| CN103145429A (en) * | 2013-03-14 | 2013-06-12 | 福建工程学院 | Aluminum titanate matrix complex-phase ceramic fireproof material |
-
2013
- 2013-08-27 CN CN2013103780941A patent/CN103396706A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106391A (en) * | 1986-09-22 | 1988-04-06 | 张海龙 | A kind of manufacture method of far ultrared paint |
| CN1097780A (en) * | 1994-04-11 | 1995-01-25 | 陆必远 | Far infrared paint for tobacco-roasting chamber |
| CN1552779A (en) * | 2003-12-18 | 2004-12-08 | 周惠敏 | High-temperature far infrared paint and preparing method thereof |
| CN101974259A (en) * | 2010-10-13 | 2011-02-16 | 中国科学院理化技术研究所 | Method for preparing A1-doped SiC powder infrared radiation coating |
| CN102718448A (en) * | 2012-04-28 | 2012-10-10 | 深圳市爱思宝科技发展有限公司 | Glaze and method for forming glaze layer |
| CN103145429A (en) * | 2013-03-14 | 2013-06-12 | 福建工程学院 | Aluminum titanate matrix complex-phase ceramic fireproof material |
Non-Patent Citations (2)
| Title |
|---|
| 刘斌: "《无机及分析化学》", 28 February 2013, 高等教育出版社, article "《无机及分析化学》", pages: 54-55 * |
| 周庆生: "《等离子喷涂技术》", 31 March 1982, 江苏科学技术出版社, article "《等离子喷涂技术》", pages: 90-91 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098320A (en) * | 2014-07-19 | 2014-10-15 | 汤炼芳 | Anti-adhesion paint and preparation method thereof |
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