Grain oriented electrical steel sheet having improved glass film

Details Grain oriented electrical steel sheet having improved glass film Grain oriented electrical steel sheet having improved glass film

1989-10-26

1991-07-02

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148113, H01F 104

Patent

active

050282794

ABSTRACT:
The adhesiveness of a glass film and watt loss of a grain-oriented electrical steel sheet is improved by partially protruding the glass film into the steel sheet part thereof. To attain the partial protrusion, the steel sheet is subjected, prior or subsequent to decarburization annealing, to a treatment of the surface thereof to form unevennesses, by a mechanical device, e.g., brush rolling, buff polishing, marking-off, sand papering, and grinding.

REFERENCES:
patent: 2234968 (1941-03-01), Hayes et al.
patent: 3990923 (1976-11-01), Takashima et al.
patent: 4213804 (1980-07-01), Datta
patent: 4533409 (1985-08-01), Benford
Patent Abstracts of Japan, vol. 6, No. 186, (C-126) (1064) Sep. 22, 1982 corresponding to Japan No. 57-101673 dated Jun. 24, 1982.
Patent Abstracts of Japan, vol. 10, No. 276 (C-373) (2332) Sep. 19, 1986 corresponding to Japn No. 61-96082 dated May 14, 1982.

Affiliated with

Also associated with

Rating

Grain oriented electrical steel sheet having improved glass film does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grain oriented electrical steel sheet having improved glass film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grain oriented electrical steel sheet having improved glass film will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1244240