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2 033 438

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IPC

(21) (22)

Application

92005130/02, 1992-11-11

(22)

Actual filing date

1992-11-11

(45)

Published

1995-04-20

(72)

Inventor

D'Jakonova V.S.Chirikhina S.L.Tishkov V.Ja.Osipov Ju.A.Rjabinkova V.K.Tjuljapin A.N.Kvasnikova O.O.Trajno A.I.

(73)

Holder

Cherepovetskij Metallurgicheskij Kombinat

METHOD FOR PRODUCTION OF SHEETS FROM CHROMIUM-MOLYBDENUM-VANADIUM STEELS Russian patent published in 1995 - IPC

Abstract RU 2033438 C1

FIELD: metallurgy. SUBSTANCE: method includes hot rolling of slabs at regulated temperature of final deformation, cooling, heating up to normalization temperature of 840-860 C, cooling and subsequent tempering with heating and regulated, rate. To increase stability of cold saws, deformation is discontinued at temperature of 1050-1100 C, heating up to normalization temperature is carried out at rate of 23-28 C/min and high-temperature tempering is accomplished at heating rate of 16-17 C/min up to 710-730 C. EFFECT: higher efficiency. 12 tbl

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RU 2 033 438 C1

Authors

D'Jakonova V.S.

Chirikhina S.L.

Tishkov V.Ja.

Osipov Ju.A.

Rjabinkova V.K.

Tjuljapin A.N.

Kvasnikova O.O.

Trajno A.I.

Dates

1995-04-20—Published

1992-11-11—Filed