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2 107 566

(13)

(51)

IPC

(21) (22)

Application

97103317/02, 1997-03-04

(22)

Actual filing date

1997-03-04

(45)

Published

1998-03-27

(72)

Inventor

Veter V.V.Belkin G.A.Sarychev I.S.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Proizvodstvennoe PredprijatieVeter Vladimir Vladimirovich

METHOD FOR OPERATION OF ROLL Russian patent published in 1998 - IPC

Abstract RU 2107566 C1

FIELD: rolling, operation of cold and hot rolling mills. SUBSTANCE: roll used in stand of rolls after 1-7 runs periodically is subjected to forced recovery including heating, holding and cooling. Holding is performed in two stages: at temperature (0.29-0.44) Ac₃ for 10-180 min, and at temperature (0.16-0.23) Ac₃ for 2-36 h where temperature Ac₃ is taken for material of working surface of roll. Holding at higher temperature may precede holding at lower temperature and vice versa. EFFECT: increased wear resistance of roll by reduction of chipping and spalling of surface of roll barrel. 4 cl, 1 tbl

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RU 2 107 566 C1

Authors

Veter V.V.

Belkin G.A.

Sarychev I.S.

Dates

1998-03-27—Published

1997-03-04—Filed