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2 317 338

(13)

(51)

IPC

C21C5/28(2006-01-01)

(21) (22)

Application

2006118460/02, 2006-05-29

(24)

Start date

2006-05-29

(22)

Actual filing date

2006-05-29

(45)

Published

2008-02-20

(72)

Inventor

Takhautdinov Rafkat SpartakovichD'Jachenko Viktor FedorovichAvramenko Vitalij AlekseevichZakharov Igor' MikhajlovichSnegirev Jurij Borisovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD OF CONVERTER STEELMAKING Russian patent published in 2008 - IPC C21C5/28

Abstract RU 2317338 C1

FIELD: ferrous metallurgy; methods of oxygen converter steelmaking.

SUBSTANCE: proposed method includes charging of scrap, pouring of cast iron, addition of lime and ferruginous magnesial flux, oxygen lancing, turning-down and tapping of metal. During oxygen lancing, ferruginous dolomite is added additionally. During turning-down procedure, 0.3-0.4 part of slag is drained, after which ferruginous magnesial slag is added in the amount of 0.3-0.45 kg/t of steel. Then, metal is tapped.

EFFECT: low cost of steel; increased good-to-bad yield; enhanced resistance of converter.

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RU 2 317 338 C1

Authors

Takhautdinov Rafkat Spartakovich

D'Jachenko Viktor Fedorovich

Avramenko Vitalij Alekseevich

Zakharov Igor' Mikhajlovich

Snegirev Jurij Borisovich

Dates

2008-02-20—Published

2006-05-29—Filed