Grain-oriented electromagnetic steel sheet with improved watt lo

Metal treatment – Compositions – Heat treating

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148 3155, 428611, 428900, 75123L, C22C 3802

Patent

active

045525960

ABSTRACT:
In a method of producing a grain-oriented electromagnetic steel sheet, a laser beam is irradiated onto the steel sheet, which has been subjected to a final high temperature annealing in order to approximate the crystal orientation of the sheet in a (110) [001] orientation. Because of the laser beam irradiation, regions of high dislocation density are locally formed in the steel sheet and subdivide the magnetic domains, with the result that a low watt loss is achieved.

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