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Application

99114921/02, 1999-07-07

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Start date

1999-07-07

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Actual filing date

1999-07-07

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Published

2000-08-20

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Inventor

Lisin V.S.Skorokhodov V.N.Nastich V.P.Kukartsev V.M.Mizin V.G.Zakharov D.V.Filjashin M.K.Khrebin V.N.Sukhanov Ju.F.Mazurov V.M.

(73)

Holder

Oao Metallurgicheskij Kombinat"

METHOD OF TREATING STEEL IN LADLE Russian patent published in 2000 - IPC

Abstract RU 2154677 C1

FIELD: steelmaking. SUBSTANCE: aluminum wire is added into ladle while simultaneously blowing metal in ladle with oxygen from above through immersed lance. Lance immersion depth (H, m) is varied and specified from following dependence: H = KVFQq/T, where V is volume of steel in ladle, cu.m; F area of steel mirror in ladle, sq.m; Q oxygen intake, cu.m/min per 1 t steel; q consumption of aluminum wire, kg per 1 t steel; T temperature of steel in ladle in the beginning of treatment, oC; K empirical factor taking account of physico-chemical mechanisms of aluminum oxidation and ranging between 6 and 375 sq.t.min.oC/m7.kg. EFFECT: increased steel heating productivity and efficiency. 1 tbl, 5 ex

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RU 2 154 677 C1

Authors

Lisin V.S.

Skorokhodov V.N.

Nastich V.P.

Kukartsev V.M.

Mizin V.G.

Zakharov D.V.

Filjashin M.K.

Khrebin V.N.

Sukhanov Ju.F.

Mazurov V.M.

Dates

2000-08-20—Published

1999-07-07—Filed

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