Forsterite-carbon refractory

Details Forsterite-carbon refractory Forsterite-carbon refractory

C - Chemistry, Metallurgy

04

B

261/25

C04B 35/52 (2006.01) C04B 35/01 (2006.01) C04B 35/20 (2006.01)

Patent

CA 1196347

Title of the Invention Forsterite-Carbon Refractory Abstract of the Disclosure The invention relates to forsterite-carbon refractory. The inside wall of the molten metal container, such as molten pig iron vessel, torpedo car, a molten steel ladle, ladle refinery, tundish, etc. has been lined with refractory so as to impart it slag resistance. With the introduction of new processes, such as dephos- phorizing, desilicifying or continuous casting, degassing refining, etc., as a result of the recent development of the pig iron and steel producing technology, the lining refrac- tory of the molten metal container, and particularly of the part thereof most susceptible to the direct attack of the slag, for example, the slag line, charging wall, charging part of the bottom, slagging wall, etc.,is now found to have a disadvantage in that its useful life is greatly reduced by the structural spalling due to slag infiltration. After a series of tests of the lining refractory of the molten metal container having long lining life even under severe operational conditions and in an oxidizing atmosphere, the inventors concerned have accomplished the invention, i.e. forsterite-carbon refractory comprising forsterite material 5-50 weight %, carbonaceous material 5-30 weight %, silicon carbide 0.5-10 weight %, the residual part consisting of magnesia refractory materials.

419393

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