METHOD OF STEEL MAKING IN ARC-TYPE STEEL-MAKING FURNACE Russian patent published in 2010 - IPC C21C5/52 

Abstract RU 2404263 C1

FIELD: metallurgy.

SUBSTANCE: method involves supply of metal charge to furnace, melting, addition of rusty dolomite to molten charge, oxidation period, steel tapping so that some part of metal and slag is left in furnace. Addition of rusty dolomite to molten metal charge is performed in portions of 300…500 kg in quantity of 5…15 kg/t per 80…90% of the main oxidation period till magnesium oxide in slag is within 8…10%.

EFFECT: increasing resistance of lining of arc-type steel-making furnaces, improving slag mode of steel making and increasing the metal yield.

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RU 2 404 263 C1

Authors

Ushakov Sergej Nikolaevich

Prokhorov Sergej Viktorovich

Alekseev Leonid Vjacheslavovich

Valiakhmetov Al'Fed Khabibullaevich

Snegirev Vladimir Jur'Evich

Dates

2010-11-20Published

2009-03-18Filed