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2001109509/02, 2001-04-09

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Start date

2001-04-09

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Actual filing date

2001-04-09

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Published

2003-05-10

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Inventor

Shljakhov N.A.Chernenilov B.M.Karpov S.N.Chujkov V.V.Vishnjakov E.A.Evsjukov V.N.Zav'Jalov O.A.Bubnov S.Ju.Poljakov V.N.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD OF MAKING ANISOTROPIC ELECTRICAL STEEL Russian patent published in 2003 - IPC

Abstract RU 2203967 C2

FIELD: non-ferrous metallurgy; making anisotropic electrical steel. SUBSTANCE: proposed method includes melting, hot and cold rolling, decarburizing annealing , applying heat-resistant coat, high- temperature annealing, applying insulating coat and homogenizing annealing. After high-temperature annealing, rolled steel is subjected to additional annealing in moistened nitrogen-hydrogen mixture at the following content of gases, %: nitrogen, 15-25; hydrogen, 75-85; steel is held at heat for 19-21 h, after which it is cooled in dry hydrogen under cap to temperature of rolls of 190-250 C in definite zone of furnace. EFFECT: reduced fragility of steel. 1 tbl, 1 ex

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RU 2 203 967 C2

Authors

Shljakhov N.A.

Chernenilov B.M.

Karpov S.N.

Chujkov V.V.

Vishnjakov E.A.

Evsjukov V.N.

Zav'Jalov O.A.

Bubnov S.Ju.

Poljakov V.N.

Dates

2003-05-10—Published

2001-04-09—Filed

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