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2 100 448

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C1

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IPC

(21) (22)

Application

96111609/02, 1996-06-07

(22)

Actual filing date

1996-06-07

(45)

Published

1997-12-27

(72)

Inventor

Lebedev V.I.Verevkin V.I.Butorin V.K.Koshelev A.E.Svekrov V.M.Shtajger A.F.Obsharov M.V.

(73)

Holder

Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD OF CONTROLLING BLOW NOZZLE POSITION ON GAS-BLOWING SMELT IN LADLE Russian patent published in 1997 - IPC

Abstract RU 2100448 C1

FIELD: metallurgy. SUBSTANCE: invention consists in that, as blow nozzle shortens in the process of blowing smelt, its position $$$ is stabilized with regard to inert gas pressure value by imparting vertical direction to blow nozzle. Stabilization time is restricted to avoid effect of metallization of nozzle on control result. Control procedure is every time commenced at the moment when pressure drops below specified level. The latter is calculated as sum of immersion of new blow nozzle into smelt and metallostatic pressure at specified $$$. EFFECT: enabled stabilizing blow nozzle position with no regard to occurring metallization of nozzle. 2 dwg

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RU 2 100 448 C1

Authors

Lebedev V.I.

Verevkin V.I.

Butorin V.K.

Koshelev A.E.

Svekrov V.M.

Shtajger A.F.

Obsharov M.V.

Dates

1997-12-27—Published

1996-06-07—Filed

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