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2 223 337

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IPC

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Application

2002113605/02, 2002-05-24

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Start date

2002-05-24

(22)

Actual filing date

2002-05-24

(45)

Published

2004-02-10

(72)

Inventor

Nastich V.P.Mindlin B.I.Cheglov A.E.Tishchenko A.D.Gvozdev A.G.Logunov V.V.Barybin V.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD FOR MAKING ISOTROPIC ELECTRICAL STEEL Russian patent published in 2004 - IPC

Abstract RU 2223337 C1

FIELD: ferrous metallurgy, namely manufacture of isotropic electrical steel used for making magnetic circuits of electric motors, generators and so on. SUBSTANCE: after hot rolling of strip when it leaves finish rolling stand before water spraying of strip subjecting it to air cooling during time period determined according to relation τ = 4,1+7,3[Si,%]-95,0[P,%]±2 s. Such equation may be used for steel containing (%): carbon, 0.05 or less; silicon, 1.4 - 3.4; phosphorus, 0.04 - 0.12. EFFECT: enhanced magnetic properties of isotropic steel. 1 tbl, 1 ex

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RU 2 223 337 C1

Authors

Nastich V.P.

Mindlin B.I.

Cheglov A.E.

Tishchenko A.D.

Gvozdev A.G.

Logunov V.V.

Barybin V.A.

Dates

2004-02-10—Published

2002-05-24—Filed