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2 148 087

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IPC

(21) (22)

Application

99107147/02, 1999-03-31

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Start date

1999-03-31

(22)

Actual filing date

1999-03-31

(45)

Published

2000-04-27

(72)

Inventor

Rashnikov V.F.Shakirov N.N.Sarychev A.F.Kuznetsov V.G.Nikolaev O.A.Pavlov V.V.Smirnov P.N.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

STEEL PRODUCTION PROCESS Russian patent published in 2000 - IPC

Abstract RU 2148087 C1

FIELD: steelmaking. SUBSTANCE: process includes melting charge, performing oxidation period, deoxidation and alloying in furnace, tapping into ladle, inert gas blowing, adding silicocalcium, treatment with slag-forming mixture, and additional introduction of aluminum on the ladle bottom before tapping in amounts found from relationship: P_Al= ([O₂], wherein [O₂] is level of oxygen before tapping, %; and 0.0015 and 250 empirical coefficients. EFFECT: increased steel desulfurization in ladle. 2 ex

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RU 2 148 087 C1

Authors

Rashnikov V.F.

Shakirov N.N.

Sarychev A.F.

Kuznetsov V.G.

Nikolaev O.A.

Pavlov V.V.

Smirnov P.N.

Dates

2000-04-27—Published

1999-03-31—Filed