Method for improving the magnetic properties of wound core fabri

Details Method for improving the magnetic properties of wound core fabri Method for improving the magnetic properties of wound core fabri

1982-01-15

1989-03-07

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

148108, 148122, 72128, 242 703, H01F 706

Patent

active

048094110

ABSTRACT:
A method for improving the magnetic properties of a core fabricated from at least one strip of amorphous metal wound about itself to form adjacent laminations in the shape or a closed loop is disclosed. In accordance with the method, a force in tension of predetermined strength is applied to the loop from the innermost lamination of the loop outwardly. While this tensile force is being applied, the loop is annealed simultaneously and subjected to a magnetic field of predetermined strength.

REFERENCES:
patent: 3771086 (1973-11-01), Poulsen
patent: 3986654 (1976-10-01), Hart et al.
patent: 3991462 (1976-11-01), Engel
patent: 3996086 (1976-12-01), Worrall
patent: 4171109 (1979-10-01), Roe
patent: 4298409 (1981-11-01), DeCristofard et al.
Luborsky, Fred E. & Becker, Joseph J., "Strain Induced Anisotropy in Amorphous Alloys and the Effect of Toroid Diameter on Magnetic Properties," IEEE Transactions on Magnetics, vol. Mag. 15, No. 6, Nov. 1979, pp. 1939-1945 at 1944.
Rough Draft Translation of Japanese Patent.

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