Method for producing a super low watt loss grain oriented electr

Details Method for producing a super low watt loss grain oriented electr Method for producing a super low watt loss grain oriented electr

1974-01-18

1976-01-13

Satterfield, Walter R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148 3155, 148 315, H01F 104

Patent

active

039322360

ABSTRACT:
A method for producing a grain-oriented electrical steel sheet showing super low watt loss, comprising making a silicon steel ingot containing 2.5 to 4.0% of Si, subjecting the ingot treatments including hot rolling, annealing and at least one cold rolling to obtain a final size, subjecting the steel to decarburization annealing and a finishing annealing which completes secondary recrystallization, subjecting the steel to remove surface product and then subjecting the steel to chemical polishing or electrolytic polishing to polish the steel surface to mirror condition.

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patent: 2385332 (1945-09-01), Carpenter et al.
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patent: 2528216 (1950-10-01), Dunn et al.
patent: 3223602 (1965-12-01), Wawrousek
patent: 3347718 (1967-10-01), Carpenter et al.
patent: 3575739 (1971-04-01), Fiedler
patent: 3764406 (1973-10-01), Littmann
patent: 3833431 (1974-09-01), Foster et al.
patent: 3834952 (1974-09-01), Matsushita et al.

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