Low iron loss grain oriented silicon steel sheets and method of

Details Low iron loss grain oriented silicon steel sheets and method of Low iron loss grain oriented silicon steel sheets and method of

1991-01-02

1993-06-29

Sheehan, John P.

Metal treatment

Stock

Magnetic

148308, 420117, H01F 104

Patent

active

052230481

ABSTRACT:
In grain oriented silicon steel sheets provided with surface layer after finish annealing, microareas of the surface layer are locally pushed into at least an inside of base metal through electron beam irradiation in a direction substantially perpendicular to the rolling direction of the sheet, whereby iron loss of the sheet is considerably reduced.

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patent: 4533409 (1985-08-01), Benford
patent: 4548656 (1985-10-01), Kimoto et al.
patent: 4770720 (1988-09-01), Kobayashi et al.
patent: 4909864 (1990-03-01), Inokuti et al.
patent: 4960652 (1990-10-01), Wada et al.

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