Preparation of sintered magnets

Details Preparation of sintered magnets Preparation of sintered magnets

1987-03-25

1988-03-29

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

75244, 75246, 148105, 148108, 252 6255, 419 38, 419 44, 419 62, 419 66, B22F 100

Patent

active

047342536

ABSTRACT:
A sintered magnet of Fe-B-rare earth alloy having an axis of easy magnetization oriented at an angle to a major axis can be directly produced from the alloy material by (a) press molding the material in an applied magnetic field into a compact of the dimensions determined by taking into account factors of shrinkage expected in X, Y and Z directions, and (b) sintering the compact.

REFERENCES:
patent: 3919004 (1975-11-01), Benz
patent: 4144060 (1979-03-01), Jandeska et al.
patent: 4325757 (1982-04-01), Jandeska et al.
patent: 4347291 (1982-08-01), Tokuoka
patent: 4437908 (1984-03-01), Inoue
patent: 4514216 (1985-04-01), Mishima et al.
patent: 4538130 (1985-08-01), Gluckstern et al.

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