Method of producing grain oriented silicon steel sheets having m

Details Method of producing grain oriented silicon steel sheets having m Method of producing grain oriented silicon steel sheets having m

1988-05-04

1990-12-04

Andrews, Melvyn J.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148113, H01F 104

Patent

active

049751271

ABSTRACT:
The magnetic properties, particularly magnetic flux density of a grain oriented silicon steel sheet are considerably improved by continuously and/or stepwise forming regions, wherein a temperature difference of a secondary recrystallization starting temperature in widthwise direction and/or longitudinal direction of the steel sheet is within a range of 10.degree. C. to 200.degree. C., in the steel sheet at a stage before the secondary recrystallization annealing step.

REFERENCES:
patent: 3392063 (1968-07-01), Kohler
patent: 3990923 (1976-11-01), Takashina et al.
patent: 4437910 (1984-03-01), Nozawa et al.
patent: 4545828 (1985-10-01), Schoen et al.

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