Method of producing grain oriented silicon steel sheets or strip

Details Method of producing grain oriented silicon steel sheets or strip Method of producing grain oriented silicon steel sheets or strip

1983-08-18

1984-09-04

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148112, H01F 104

Patent

active

044695330

ABSTRACT:
Grain oriented silicon steel sheets or strips having high magnetic induction and ultra-low iron loss can be obtained by the intermediate annealing cycle containing a rapid heating and rapid cooling just before final cold rolling, wherein a first cold rolled sheet is rapidly heated from 500.degree. C. to 900.degree. C. at a heating rate of at least 50.degree. C./sec and the steel sheet heated in the intermediate annealing is rapidly cooled from 900.degree. C. to 500.degree. C. at a cooling rate of at least 5.degree. C./sec.

REFERENCES:
patent: 3855020 (1974-12-01), Salsgiver et al.
patent: 3959033 (1976-05-01), Barisoni et al.

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