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FIELD: metallurgy. SUBSTANCE: chromium carbide is extracted by melting in an electric furnace, it contains 14.2% of common carbon, 0.9% of free carbon; 0.003% of oxygen and 0.03% of sulfur. Lump of carbide is subjected to fine crushing to a size of less than 5 mm, then - to a size of 1.0 mm. Chromium carbide is separated from soot and dried at 180 C. Production of semi-product with a content of common carbon exceeding the stoichiometric one by 0.1 to 4.0% makes it possible to simplify the process of batching, prevent formation of excicarbides and intermediate carbides. EFFECT: facilitated procedure.
SU2256455/02A1979-05-071979-05-07Method of production of metal carbides
SU1820569A2
(en)
Effect of Limestone on the Specific Consumption of Coke and Electricity and on the Yield of Top Gas when Melting Ferromanganese in RPZ-48 M 2 Electric Furnaces