Patent ID: 9617616
Date: 2017-04-11
CPC Classifications: C21D,C22C,H01F

Claim:
1. A method for producing a grain-oriented electrical steel sheet, the method comprising: hot rolling a raw steel material to obtain a hot rolled steel sheet, the raw steel material including: optionally, hot band annealing the hot rolled steel sheet; then, subjecting the hot rolled steel sheet after or without hot band annealing to one stage cold rolling or two or more stage cold rollings including an intermediate annealing therebetween to obtain a cold rolled steel sheet having a final sheet thickness; subjecting the cold rolled steel sheet to decarburization annealing combined with primary recrystallization annealing, and then, applying an annealing separator to a surface of the steel sheet; and then, subjecting the steel sheet to a final annealing.