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2 048 249

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Application

93054976/02, 1993-12-10

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Actual filing date

1993-12-10

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Published

1995-11-20

(72)

Inventor

Umanets V.I.Lebedev V.I.Safonov I.V.Roldugin G.N.Kopylov A.F.Kurlykin A.F.Kovalenko A.V.Rjabov V.V.Chigraj S.M.

(73)

Holder

Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD FOR IN-LINE EVACUATION OF METAL IN THE PROCESS OF CONTINUOUS CASTING Russian patent published in 1995 - IPC

Abstract RU 2048249 C1

FIELD: metallurgy, continuous casting of metals. SUBSTANCE: method involves supplying molten metal from pouring ladle into vacuum chamber; creating negative pressure in vacuum chamber till required residual pressure is set; supplying metal into intermediate ladle through branch pipe and further into crystallizers through elongate pouring cups withdrawing ingots from crystallizer. In the process of casting metal from pouring ladle, control of pouring cup for presence of slag is conducted. In case presence of slag in an amount of 5-10% is detected, pressure in vacuum chamber is gradually increased to atmospheric pressure for about 0.5-2.0 min. When 70-90% of slag in flow of metal is detected, supply of metal from pouring ladle is cut off. EFFECT: increased efficiency and improved quality of metal. 1 tbl

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RU 2 048 249 C1

Authors

Umanets V.I.

Lebedev V.I.

Safonov I.V.

Roldugin G.N.

Kopylov A.F.

Kurlykin A.F.

Kovalenko A.V.

Rjabov V.V.

Chigraj S.M.

Dates

1995-11-20—Published

1993-12-10—Filed

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