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2 030 959

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C1

(51)

IPC

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Application

93038319/02, 1993-07-26

(22)

Actual filing date

1993-07-26

(45)

Published

1995-03-20

(72)

Inventor

Umanets V.I.Lebedev V.I.Roldugin G.N.Safonov I.V.Chigraj S.M.Pestov V.N.

(73)

Holder

Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD FOR METAL CONTINUOUS DEGASSING IN CONTINUOUS CASTING Russian patent published in 1995 - IPC

Abstract RU 2030959 C1

FIELD: metallurgy. SUBSTANCE: method for metal continuous degassing in continuous casting consists in that liquid metal is supplied from pouring ladle into vacuum chamber with working flow rate. Required residual pressure is created in vacuum chamber to subject metal to vacuum treatment. Metal is supplied to intermediate ladle through branch pipe, and further on, to molds from which ingots are withdrawn. At the beginning of pouring from pouring ladle metal weight rate exceeds the working metal weight rate by 1.2-2 times into molds. When intermediate ladle is filled to height of 0.2-0.4 of the metal working level, metal is supplied to molds with working weight rate and when metal level in intermediate ladle rises above the lower end of branch pipe and sealing of vacuum chamber with liquid metal, pressure in vacuum chamber is reduced to the preset residual pressure. EFFECT: higher efficiency. 1 tbl

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RU 2 030 959 C1

Authors

Umanets V.I.

Lebedev V.I.

Roldugin G.N.

Safonov I.V.

Chigraj S.M.

Pestov V.N.

Dates

1995-03-20—Published

1993-07-26—Filed

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