Method employing skin-pass rolling to enhance the quality of pho

Details Method employing skin-pass rolling to enhance the quality of pho Method employing skin-pass rolling to enhance the quality of pho

1989-11-09

1991-08-20

Dean, R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148113, 72202, C21D 174

Patent

active

050411705

ABSTRACT:
An improvement in a method for improving the magnetic domain wall spacing of grain-oriented silicon steel sheet having an insulating coating thereof, wherein the sheet is subjected to metallic contaminants, particularly phosphorus and phosphorus compounds, to refine magnetic domains, followed by a rolling procedure, followed by a stress relief anneal to provide a smooth surface on the sheet and reduced core loss.

REFERENCES:
patent: 3849214 (1974-11-01), Foster
patent: 4548655 (1985-10-01), Miller
patent: 4851056 (1989-07-01), Miyoshi et al.
patent: 4911766 (1990-03-01), Ames et al.

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