Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a refractory brick and a preparation method thereof, in particular to a calcium oxide carbon brick and a preparation method thereof. Large particles select calcium base sand with calcium oxide as the main component or calcium carbonate coated calcium oxide base sand, calcium oxide base sand with a particle size of less than 0.088mm as the base material, flake graphite is taken as the carbon source, anhydrous phenolic resin is used as the binder, urotropine is taken as the curing agent, and metal magnesium powder is adopted as the antioxidant. The preparation method includes: mixing the raw materials evenly, conducting compaction molding, and performing 150-350DEG C heat treatment to prepare series of calcium oxide carbon brick. The high performance calcium oxide carbon brick prepared by the method can be used for smelting clean steel, and plays a role of partially replacing magnesia carbon brick, alumina magnesia carbon brick, magnesium calcium carbon brick and dolomite carbon brick, can effectively protect high quality magnesite, bauxite ore and graphite resources in China, reduces the production cost of refractory materials, and brings huge economic and social benefits.
The invention relates to a refractory brick and a preparation method thereof, in particular to a calcium oxide carbon brick and a preparation method thereof. Large particles select calcium base sand with calcium oxide as the main component or calcium carbonate coated calcium oxide base sand, calcium oxide base sand with a particle size of less than 0.088mm as the base material, flake graphite is taken as the carbon source, anhydrous phenolic resin is used as the binder, urotropine is taken as the curing agent, and metal magnesium powder is adopted as the antioxidant. The preparation method includes: mixing the raw materials evenly, conducting compaction molding, and performing 150-350DEG C heat treatment to prepare series of calcium oxide carbon brick. The high performance calcium oxide carbon brick prepared by the method can be used for smelting clean steel, and plays a role of partially replacing magnesia carbon brick, alumina magnesia carbon brick, magnesium calcium carbon brick and dolomite carbon brick, can effectively protect high quality magnesite, bauxite ore and graphite resources in China, reduces the production cost of refractory materials, and brings huge economic and social benefits.
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