Method for domain refinement of oriented silicon steel by low pr

Details Method for domain refinement of oriented silicon steel by low pr Method for domain refinement of oriented silicon steel by low pr

1989-07-19

1990-10-23

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148113, H01F 104

Patent

active

049649221

ABSTRACT:
Grain-oriented silicon steel having an insulation coating such as a forsterite layer on its outer surface, on which is scribed by a low pressure abrasion technique a predetermined pattern of stripes to expose the metal substrate, in a manner that little or no effect will be experienced with respect to magnetic properties, but will constitute essential preparation for improvement in properties when chemical treatment of the exposed metal stripes is performed.

REFERENCES:
patent: 3647575 (1972-03-01), Fiedler et al.
patent: 3990923 (1976-11-01), Takashina et al.
patent: 4513597 (1985-04-01), Kimotoo et al.
patent: 4548656 (1985-10-01), Kimoto et al.
patent: 4680062 (1987-07-01), Shen et al.
patent: 4737203 (1988-04-01), Shen et al.

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