Low iron loss grain oriented silicon steel sheets and method of

Electric heating – Metal heating – By arc

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2191212, B23K 1500

Patent

active

051460637

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.

REFERENCES:
patent: 4909864 (1990-03-01), Inokuti et al.

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