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2 068 448

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C1

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IPC

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Application

4865258/02, 1990-09-10

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Actual filing date

1990-09-10

(45)

Published

1996-10-27

(72)

Inventor

Tsyrlin M.B.Tsejtlin A.M.Gustomesov V.A.Kavtrev V.M.Lakeev B.A.Ostrejko I.A.Fishman S.B.Grigor'Ev L.G.Petrenko A.G.Kazadzhan L.B.Tsejtlin G.A.

(73)

Holder

Aktsionernoe Obshchestvo Predprijatie Ural'Skij Nauchno-Issledovatel'Skij InstitutAktsionernoe Obshchestvo Verkh-Isetskij Metallurgicheskij Zavod

METHOD FOR PRODUCTION OF THIN-SHEET ELECTRICAL STEEL Russian patent published in 1996 - IPC

Abstract RU 2068448 C1

FIELD: production of thin-sheet electrical steel. SUBSTANCE: normalization of hot-rolled steel of sulfonitride melting version is carried out with regulated cooling whose rate vc down to 750-900 C is established depending on the content of aluminium in steel. Decarburizing annealing is effected with regulated heating rate vh depending on vc. Steel treated in compliance with the offered method features extremely high values of magnetic induction B100 and low level of specific losses P1,7 without intermelt discontinuity. EFFECT: higher efficiency. 2 tbl

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RU 2 068 448 C1

Authors

Tsyrlin M.B.

Tsejtlin A.M.

Gustomesov V.A.

Kavtrev V.M.

Lakeev B.A.

Ostrejko I.A.

Fishman S.B.

Grigor'Ev L.G.

Petrenko A.G.

Kazadzhan L.B.

Tsejtlin G.A.

Dates

1996-10-27—Published

1990-09-10—Filed

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