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2 334 797

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IPC

C21C7/06(2006-01-01)

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Application

2006126418/02, 2006-07-20

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Start date

2006-07-20

(22)

Actual filing date

2006-07-20

(45)

Published

2008-09-27

(72)

Inventor

Sarychev Boris AleksandrovichSarychev Aleksandr FedorovichNikolaev Oleg Anatol'EvichChigasov Dmitrij NikolaevichKebenko Evgenij Valer'EvichAntipanov Vadim Grigor'EvichMeshcherov Sergej Viktorovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD OF PRODUCTION OF VANADIUM CONTAINING STEEL Russian patent published in 2008 - IPC C21C7/06

Abstract RU 2334797 C2

FIELD: metallurgy.

SUBSTANCE: invention refers to iron and steel industry, particularly to production of alloyed steel. The method includes tapping of melt out of steel melting assembly into a ladle, blasting of metal with inert gas, and introducing micro alloying elements into melt. Prior to balancing blasting vanadium in form of ferrovanadium at amount of 0.0010...0.0018 from the mass of melt in the ladle is introduced into the ladle. After blasting and correction of chemical composition of steel it is subject to vacuumising at a circulation vacuum-extractor with a circulation ratio within the interval of 4.5...8.0 and with residual evacuation in it not more, than 3 mm merc.col.

EFFECT: production of qualitative vanadium containing steel.

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RU 2 334 797 C2

Authors

Sarychev Boris Aleksandrovich

Sarychev Aleksandr Fedorovich

Nikolaev Oleg Anatol'Evich

Chigasov Dmitrij Nikolaevich

Kebenko Evgenij Valer'Evich

Antipanov Vadim Grigor'Evich

Meshcherov Sergej Viktorovich

Dates

2008-09-27—Published

2006-07-20—Filed