METHOD OF IN-LINE DEGASSING OF STEEL WITH ESPECIALLY LOW CONTENT OF CARBON IN CONTINUOUS CASTING Russian patent published in 1997 - IPC

Abstract RU 2092274 C1

FIELD: metallurgy, in particular, steel continuous casting. SUBSTANCE: to produce steel with especially low content of carbon within 0.001-0.01 % in continuous casting, prior to beginning of in-line degassing, steel is saturated with nitrogen within the range of 0.01-0.05%. In this case, steel is blow in converter by blowing through bottom tuyeres with nitrogen in form rate of 0.04-015 cu.m/min per ton of steel, or prior to vacuum degassing, introduced into steel is nitrated manganese with consumption of 1-3 kg per ton of steel, or in steel discharge from converter, introduced into steel is carbamide CO(NH2)2 with consumption of 0.2-2.0 kg per ton of steel. EFFECT: higher efficiency. 4 cl, 1 tbl

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RU 2 092 274 C1

Authors

Sukhanov Ju.F.

Khrebin V.N.

Rjabov V.V.

Chumarin B.A.

Safonov I.V.

Nyrkov N.I.

Kopylov A.F.

Umanets V.I.

Ermolaeva E.I.

Lebedev V.I.

Dates

1997-10-10Published

1995-10-09Filed