Magnetic scale and method of manufacturing the same

Details Magnetic scale and method of manufacturing the same Magnetic scale and method of manufacturing the same

1988-02-22

1989-10-03

Kastler, S.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having magnetic properties, or preformed fiber orientation...

148306, 148903, C21D 109

Patent

active

048716243

ABSTRACT:
A magnetic scale includes a magnetic base member and a thin film formed on a surface of the magnetic member by plating or flame spraying nickle, chromium, manganese, silicon, boron, carbon, or a combination thereof. A laser beam or an arc discharge is applied to the outer circumferential surface of the thin film to fuse the metal of thin film and the metal of the base member under heat for thereby forming nonmagnetic modified portions on the surface of the base member.

REFERENCES:
patent: 4510371 (1985-04-01), Nakamura et al.
patent: 4657823 (1987-04-01), Siemers et al.

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