Local heat treatment of electrical steel

Details Local heat treatment of electrical steel Local heat treatment of electrical steel

1982-11-08

1985-11-19

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148111, 219 1043, 219155, H01F 104

Patent

active

045540292

ABSTRACT:
A process for improving the core loss of magnetic materials of the type having a plurality of magnetic domains and which may have an insulative coating such as a mill glass, an applied coating, or both. The magnetic material is subjected to a local heat treatment employing radio frequency induction heating, radio frequency resistance heating, or electron beam resistance heating to induce artificial boundaries. Thereafter, the magnetic material is subjected to an annealing treatment.

REFERENCES:
patent: 3192078 (1965-06-01), Gordon et al.
patent: 3276922 (1966-10-01), Sery et al.
patent: 3477883 (1969-11-01), Sery et al.
patent: 3953252 (1976-04-01), Levin et al.
patent: 3990923 (1976-11-01), Takashina et al.
patent: 4109127 (1978-08-01), Frungel
patent: 4215259 (1980-07-01), Rudd et al.
patent: 4234776 (1980-11-01), Rudd et al.
patent: 4265684 (1981-05-01), Boll
patent: 4312684 (1982-01-01), Chraplyvy et al.
patent: 4363677 (1982-12-01), Ichiyama et al.
McGannon, The Making, Shaping and Treating of Steel, 8th ed., 1964, p. 1060.
Metals Handbook, vol. 4, Heat Treating, 1981, pp. 518 to 521.

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