SLAG FORMING MIXTURE Russian patent published in 2003 - IPC

FIELD: ferrous metallurgy, namely compositions of slag forming mixtures used for protecting steel in molds at continuous casting of ingots with slab type cross section. SUBSTANCE: slag forming mixture includes mica, fluorspar, Portland cement, carbon containing matter and in addition cryolite, calcium-silicon and coke dust as carbon-containing matter at next relation of ingredients (mass%): mica, 10 - 30; cryolite, 2 - 20; fluorspar, 10 - 25; coke dust, 8 - 12; calcium-silicon, 3 - 6; Portland cement, the balance. EFFECT: enhanced surface quality of continuously cast slabs, lowered cost of slag forming mixture. 2 cl, 1 tbl, 1 ex