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2 175 985

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IPC

(21) (22)

Application

2001110600/02, 2001-04-19

(24)

Start date

2001-04-19

(22)

Actual filing date

2001-04-19

(45)

Published

2001-11-20

(72)

Inventor

Tsyrlin M.B.Shatokhin I.M.

(73)

Holder

Tsyrlin Mikhail BorisovichShatokhin Igor' Mikhajlovich

METHOD OF MAKING ELECTRICAL-SHEET ANISOTROPIC STEEL Russian patent published in 2001 - IPC

Abstract RU 2175985 C1

FIELD: ferrous metallurgy; making grain-oriented electrical- sheet steels at high permeability of magnetic flux. SUBSTANCE: method consists in maximum realization of principle of grain- oriented heredity in production line making electrical-sheet anisotropic steel. Method includes heating of steel before hot rolling in temperature range ensuring single-phase (ferrite) structure; time and temperature conditions of hot deformation of metal at which 3 to 8% of austenite appears in temperature range from 1100 to 1150 C; method includes also heating of steel for primary recrystallization after second cold rolling procedure at rather slow rate. EFFECT: high magnetic properties of steel made according to this method. 3 cl, 1 dwg, 1 tbl

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RU 2 175 985 C1

Authors

Tsyrlin M.B.

Shatokhin I.M.

Dates

2001-11-20—Published

2001-04-19—Filed

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