A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses an alumina-carbon continuous casting refractory material, which is composed of the following raw materials by weight part: 0.1-0.2 of an antioxidant DLTP, 40-47 of fused white corundum, 31-40 of flake graphite, 0.06-0.1 of divinyl benzene, 1-2 of rosin, 2-3 of microcrystalline cellulose, 4-5 of phenolic resin, 10-12 of sisal fiber, 26-30 of tetraethyl orthosilicate, 3-4 of a 10-13mol/l nitric acid solution, 2-3 of glacial acetic acid, and 0.4-0.5 of sp-80. The tetraethyl orthosilicate involved in the invention is hydrolyzed into silanol sol under the condition of adding the catalyst glacial acetic acid, the silanol sol is mixed with a fiber emulsion, and the solvent is evaporated to obtain the heterocomplex containing carbon and silicon, and finally high temperature carbonization is carried out, and the carbon source is provided by the fiber emulsion, thus obtaining a carbon silicon composite additive. The carbon silicon composite additive has the advantages of stable chemical properties, high heat conductivity coefficient, small thermal expansion coefficient, thermal shock resistance, light weight, and high strength.
The invention discloses an alumina-carbon continuous casting refractory material, which is composed of the following raw materials by weight part: 0.1-0.2 of an antioxidant DLTP, 40-47 of fused white corundum, 31-40 of flake graphite, 0.06-0.1 of divinyl benzene, 1-2 of rosin, 2-3 of microcrystalline cellulose, 4-5 of phenolic resin, 10-12 of sisal fiber, 26-30 of tetraethyl orthosilicate, 3-4 of a 10-13mol/l nitric acid solution, 2-3 of glacial acetic acid, and 0.4-0.5 of sp-80. The tetraethyl orthosilicate involved in the invention is hydrolyzed into silanol sol under the condition of adding the catalyst glacial acetic acid, the silanol sol is mixed with a fiber emulsion, and the solvent is evaporated to obtain the heterocomplex containing carbon and silicon, and finally high temperature carbonization is carried out, and the carbon source is provided by the fiber emulsion, thus obtaining a carbon silicon composite additive. The carbon silicon composite additive has the advantages of stable chemical properties, high heat conductivity coefficient, small thermal expansion coefficient, thermal shock resistance, light weight, and high strength.
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