A heat-insulating, heat-preserving, and high-temperature-resistant coating for the surface of q235b steel and a preparation method thereof
A high-temperature-resistant coating, Q235B technology, applied in anti-corrosion coatings, fire-proof coatings, alkali metal silicate coatings, etc., can solve the problems of high thermal conductivity, large coating thickness, etc., achieve strong fire resistance, prevent bursting, and prevent cracking deformation effect
Active Publication Date: 2022-01-07
哈尔滨拓百世环保涂料有限公司
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Problems solved by technology
[0004] The present invention aims to solve the technical problems of large thickness and high thermal conductivity of the coating formed by the existing thermal insulation cold spray high temperature resistant coating, and provides a thermal insulation thermal insulation high temperature resistant coating for the surface of Q235B steel and its preparation method
Method used
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specific Embodiment approach 1
[0043] Specific Embodiment 1: In this embodiment, a heat-insulating and heat-resisting high-temperature-resistant coating for the surface of Q235B steel consists of 11-22 parts by mass of sodium silicate, 0.4-0.8 parts of air-entraining agent, and 0.8-4 parts of thickening agent, 0.4-1.6 parts of corrosion inhibitor, 30-38 parts of alumina, 4-8 parts of fly ash, 1.6-3.2 parts of magnesium oxide, 0.8-4 parts of silicon carbide, 5-10 parts of aluminum powder and 15-20 parts Deionized water preparation.
specific Embodiment approach 2
[0044] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the sodium silicate is sodium trimosilicate. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0045] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the air-entraining agent is sodium petroleum sulfonate. Others are the same as in the first or second embodiment.
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Abstract
A heat-insulating, heat-preserving, and high-temperature-resistant coating used on the surface of Q235B steel and a preparation method thereof, the invention relates to the field of coatings and a preparation method thereof. The invention aims to solve the technical problems of large coating thickness and high thermal conductivity coefficient formed by the existing thermal insulation cold-sprayed high-temperature resistant coating. The paint is prepared from sodium silicate, air-entraining agent, thickener, corrosion inhibitor, aluminum oxide, fly ash, magnesium oxide, silicon carbide, aluminum powder and deionized water in parts by mass. Method: weighing raw materials; preparing emulsion; ball milling to prepare powder; mixing and stirring. By controlling the adding sequence of each component, the present invention can make each component in the thermal insulation and high temperature resistant coating form a space structure wrapped layer by layer, effectively block the transfer of heat, and make the prepared high temperature resistant coating have better heat insulation High temperature performance. The invention prepares heat-insulating, heat-preserving and high-temperature-resistant coatings for coating Q235B steel materials.
Description
technical field [0001] The invention relates to the field of paint and its preparation method. Background technique [0002] Heat insulation and heat preservation cold spray high temperature resistant paint can not only make the steel coating decoration more beautiful, but also permanently chemically bond with the steel plate surface. This kind of paint can achieve the effect of heat preservation and heat insulation when sprayed under normal temperature cold spray conditions. Its service life is double or even longer than that of general organic coatings. And make the steel plate coating obtain good heat preservation and heat insulation function, reduce energy loss. [0003] Existing cold-spray high-temperature-resistant coatings for heat insulation and heat preservation of steel plates are mostly made of conventional heat preservation materials, such as sepiolite, expanded perlite, and expanded moon vermiculite. The coating formed by scraping with this kind of high-temper...
Claims
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IPC IPC(8): C09D1/04C09D5/10C09D7/61C09D7/80
CPCC09D1/04C09D5/103C09D5/18C09D7/61C09D7/70C09D7/80C09D7/69
Inventor 孟中嫄
Owner 哈尔滨拓百世环保涂料有限公司
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