FIELD: metallurgy.
SUBSTANCE: method includes continuous introduction of briquettes or pellets based on chromium directly into electric melting apparatus, heating and melting the briquettes or pellets based on chromium to form molten chromium with high content of carbon, preventing oxidation of molten chromium with high carbon content by minimising access of oxygen-containing gas at specified heating stage, carbonising molten chromium with high carbon content to form molten metallised chromium with high carbon content, cleaning molten metallised chromium with high carbon content by reducing silicon oxides to silicon and desulfurizing molten metallised chromium with high content of carbon to manufacture product on based on molten chromium with high carbon content and controlling silicon level in the electric melting apparatus by adding carbon to the electric melting apparatus. A portion of carbon is added to the electric melting apparatus in the composition of briquettes or chromium-based pellets through preliminary reduction furnace, and additional carbon is added to the electric melting apparatus from the source, which is different from briquettes or chromium-based pellets and pre-reduction furnace, and tapping the finished product.
EFFECT: invention makes it possible to produce a molten chromium-carbon product with carbon concentration of 4-12 percent.
21 cl, 3 dwg
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