Method of manufacturing grain-oriented silicon steel sheet...

Details Method of manufacturing grain-oriented silicon steel sheet... Method of manufacturing grain-oriented silicon steel sheet...

C - Chemistry, Metallurgy

21

D

C21D 8/12 (2006.01) C21D 1/76 (2006.01)

Patent

CA 2154407

A method of manufacturing a grain-oriented silicon steel sheet exhibiting excellent magnetic characteristics over the entire length of a coil thereof, which involves hot rolling a silicon steel slab containing aluminum and suitable for making a grain-oriented silicon steel sheet; annealing the steel sheet, as the need arises; cold rolling the steel sheet to a final thickness, the cold rolling including an intermediate annealing process; performing a heat effect treatment before, during or after the cold rolling; performing a decarburizing annealing; and performing a final annealing process. The method inhibits oxidation of the surfaces of the steel sheet during the cold rolling.

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