Apparatus for packing permanent magnet powder
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United States of America Patent
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Aug 4, 1992
Issued Date -
N/A
app pub date -
Oct 31, 1990
filing date -
Apr 15, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for packing a permanent magnet powder wherein a solenoid coil is provided near the opening of a cylindrical molding space of a mold in such a manner that the direction of the central axis of the solenoid coil substantially coincides with the central axis of the molding space, and an alternating current magnetic field is applied, so that a permanent magnet powder above the opening is packed into the molding space. A magnetic pole may be provided in the center of the solenoid coil. The method of the present invention can be applied to not only a powder for a sintered magnet and cast magnet, but also a powder for a bonded magnet.
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