Method of manufacturing grain-oriented silicon steel sheet exhib

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

1995-07-20

1997-10-21

Sheehan, John

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148111, H01F 104

Patent

active

056791780

ABSTRACT:
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.

REFERENCES:
patent: 4421574 (1983-12-01), Lyudkovsky
patent: 5354389 (1994-10-01), Arai et al.

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