SLAG FORMING MIXTURE Russian patent published in 2003 - IPC

FIELD: ferrous metallurgy, namely compositions of slag forming mixtures used for protecting steel in mold at continuous casting of ingots with slab type cross section. SUBSTANCE: slag forming mixture contains silicate block; fluospar; carbon containing matter; Portland cement and in addition nepheline concentrate, calcium-silicon and coke dust as carbon-containing matter at next relation of ingredients (mass %): nepheline concentrate, 15 - 30; silicate block, 4 - 8; fluospar, 10 - 35; coke dust, 8 - 15; calcium-silicon, 3 - 6; Portland cement, the balance. It is possible to use slag Portland cement as Portland cement. EFFECT: enhanced quality of surface of continuously cast slabs, lowered cost of slag forming mixture. 2 cl, 1 tbl