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2 289 629

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IPC

C21C5/28(2006-01-01)

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Application

2005111802/02, 2005-04-20

(24)

Start date

2005-04-20

(22)

Actual filing date

2005-04-20

(45)

Published

2006-12-20

(72)

Inventor

Shagalov Anatolij BorisovichDemidov Konstantin NikolaevichZinchenko Sergej DmitrievichFilatov Mikhail Vasil'EvichEroshkin Sergej BorisovichLjatin Andrej BorisovichKuznetsov Sergej IsaakovichSmirnov Denis Evgen'Evich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD FOR STEEL MELTING IN CONVERTER Russian patent published in 2006 - IPC C21C5/28

Abstract RU 2289629 C1

FIELD: metallurgy, namely steel melting in converter with upper oxygen blast.

SUBSTANCE: method comprises steps of supplying (after termination of oxygen blasting of metal) to converter through upper oxygen lance nitrogen with flow rate 2.6 -6.0 m³/min per ton of melt 1 - 5 min before blasting nitrogen through ferruginous magnesia fluxes including 15 -95% of magnesium oxides and 2 - 15% of iron oxides in 2 - 15 kg/t of melt.

EFFECT: increased thickness of skull layer in upper part of converter lining, improved strength of lining, less loss of yield for steel.

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RU 2 289 629 C1

Authors

Shagalov Anatolij Borisovich

Demidov Konstantin Nikolaevich

Zinchenko Sergej Dmitrievich

Filatov Mikhail Vasil'Evich

Eroshkin Sergej Borisovich

Ljatin Andrej Borisovich

Kuznetsov Sergej Isaakovich

Smirnov Denis Evgen'Evich

Dates

2006-12-20—Published

2005-04-20—Filed