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2 082 772

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C1

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IPC

(21) (22)

Application

94034768/02, 1994-09-20

(22)

Actual filing date

1994-09-20

(45)

Published

1997-06-27

(72)

Inventor

Frantsenjuk I.V.Kazadzhan L.B.Barjatinskij V.P.Poljakov M.Ju.

(73)

Holder

Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD FOR PRODUCING ANISOTROPIC ELECTRICAL STEEL Russian patent published in 1997 - IPC

Abstract RU 2082772 C1

FIELD: ferrous metallurgy. SUBSTANCE: method includes hot rolling of steel containing (in wt %): silicon, 2.8-3.2; manganese, 0.1-0.3; copper, 0.1-0.7; and aluminium, 0.010-0.30 at coiling temperature 530-650 C, double cold rolling, intermediate decarbonizing baking, and final high-temperature annealing. Improvement of electromagnetic properties of anisotropic electrical steel and reduction of its production cost price is achieved by reducing, in the course of hot rolling, coiling temperature as weight part of aluminium in steel rises. When this part is 0.010-0.014%, coiling temperature is 650-580 C, and with 0.015-0.030% aluminium, 579-530 C. EFFECT: improved electromagnetic properties of product. 3 cl, 1 tbl

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RU 2 082 772 C1

Authors

Frantsenjuk I.V.

Kazadzhan L.B.

Barjatinskij V.P.

Poljakov M.Ju.

Dates

1997-06-27—Published

1994-09-20—Filed

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