Method of manufacturing plastic-bonded anisotropic permanent mag

Details Method of manufacturing plastic-bonded anisotropic permanent mag Method of manufacturing plastic-bonded anisotropic permanent mag

1979-05-24

1982-03-23

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

B29F 500

Patent

active

043212220

ABSTRACT:
In a method of manufacturing plastic-bonded anisotropic permanent magnets, agglomerates having an easy axis of magnetization in a size from 300 to 1000 .mu.m are used as a magnetic material in a mixture with single magnetic domain particles. In this manner a particularly large packing density of magnetic material in the permanent magnets is obtained. With a filling of the mixture of plastic-binder with magnetic material in the order of approximately 75% by volume, remanence values are realized above 310 mT.

REFERENCES:
patent: 3117092 (1964-01-01), Parker
patent: 3564654 (1971-02-01), Steingroever
patent: 3867490 (1975-02-01), Gorling
patent: 3873954 (1975-03-01), Baermann
patent: 4057606 (1977-11-01), Kobayashi et al.
patent: 4063970 (1977-12-01), Steingroever
"The Handbook of Chemistry and Physics" (59th Ed., CRC Press, Inc. 1978) pp. B-151 & B-166.

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