Method of manufacturing a silicon steel sheet having improved ma

Details Method of manufacturing a silicon steel sheet having improved ma Method of manufacturing a silicon steel sheet having improved ma

1996-10-17

1998-09-15

Sheehan, John

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148278, H01F 104

Patent

active

058074414

ABSTRACT:
A method of effectively manufacturing silicon steel sheets with highly accumulated {100} orientations having excellent magnetic characteristics by a single tight-coil annealing or multi-layer annealing. The method can be widely used in the manufacture of magnetic steel sheets. The silicon steel sheet with excellent magnetic characteristics can be obtained by subjecting a cold-rolled silicon steel sheet containing, on a weight basis, not more than 1% of C, 0.2 to 6.5% of Si, and 0.05 to 5.0% of Mn to a tight-coil annealing or a multilayer annealing together with a substance which accelerates decarburization or with a combination of a substance which accelerates decarburization and a substance which accelerates demanganization, as separators in annealing.

REFERENCES:
patent: 3932235 (1976-01-01), Foster
patent: 4207123 (1980-06-01), Reynolds et al.

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