Method of preparing and installing cobalt-rare earth permanent m

Details Method of preparing and installing cobalt-rare earth permanent m Method of preparing and installing cobalt-rare earth permanent m

1975-10-08

1978-05-30

Satterfield, Walter R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148 3157, 148108, 324152, H01F 102

Patent

active

040921840

ABSTRACT:
A method for the manufacture of cobalt-rare earth permanent magnets formed of consolidated particles thereof, for installation within electromagnetic devices such as induction watthour meters, and the product thereof. The method includes the magnetization of the consolidated cobalt-rare earth to substantial saturation in a predetermined polarity, the demagnetization and installation of the cobalt-rare earth permanent magnet while in a demagnetized state in an electromagnetic device, then its remagnetization in situ within the device to substantial saturation in a magnetizing field of the same predetermined polarity.

REFERENCES:
patent: 2414462 (1947-01-01), Grace et al.
patent: 2595244 (1952-05-01), Goss et al.
patent: 3655463 (1972-04-01), Benz
patent: 3655464 (1972-04-01), Benz
patent: 3695945 (1972-10-01), Benz
patent: 3802935 (1974-04-01), Martin et al.
Bozorth, R; Ferromagnetism; New York, 1951, pp. 9-11 & 845-849.

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