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2 155 234

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Application

99114232/02, 1999-06-28

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Start date

1999-06-28

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Actual filing date

1999-06-28

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Published

2000-08-27

(72)

Inventor

Mindlin B.I.Cheglov A.E.Gvozdev A.G.Logunov V.V.Parakhin V.I.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD OF PRODUCTION OF ISOTROPIC ELECTRICAL-SHEET STEEL Russian patent published in 2000 - IPC

Abstract RU 2155234 C1

FIELD: metallurgy; production of cold-rolled isotropic electrical-sheet steel used for manufacture of rotary electrical machines. SUBSTANCE: isotropic electrical- sheet steel contains silicon in the amount of 1.4 to 2.6%, phosphorus, 0.05 to 0.15%; steel is subjected to hot rolling, cold rolling and to final recrystallization annealing. Annealing temperature is determined taking into account content of silicon and phosphorus in steel by the following equation: at change of content of silicon and phosphorus. EFFECT: improved magnetic properties of isotropic steel. 2 tbl

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RU 2 155 234 C1

Authors

Mindlin B.I.

Cheglov A.E.

Gvozdev A.G.

Logunov V.V.

Parakhin V.I.

Dates

2000-08-27—Published

1999-06-28—Filed

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