METHOD OF REFINING STEEL IN LADLE Russian patent published in 2006 - IPC C21C7/06 C21C7/64 C21C7/76

Abstract RU 2285052 C2

FIELD: metallurgy; treatment of steel in ladle.

SUBSTANCE: proposed method includes melting steel covered with slag in ladle; slag covering the steel contains silicon, manganese and calcium; chemical composition of steel makes it possible to realize mode of using calcium-rich slag. Molten steel together with slag is mixed by injection of inert gas till attaining low levels of free oxygen in steel and desulfurization to sulfur level lesser than 0.009 mass-%.

EFFECT: low content of sulfur in steel; adaptability of steel for continuous casting of narrow strip.

16 cl, 1 dwg, 1 tbl

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RU 2 285 052 C2

Authors

Gross Klehj A.

Makhapatra Rama Ballav

Bledzhd Uolter

Uigman Stiven Leonard

Dates

2006-10-10—Published

2002-04-02—Filed