Method for producing a noncircular permanent magnet
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United States of America Patent
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Apr 10, 1990
Grant Date -
N/A
app pub date -
Nov 27, 1987
filing date -
Nov 27, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for producing a noncircular magnet having asymmetric magnetic properties along axes thereof. A particle charge of composition from which the magnet is to be produced is placed in a container, heated and extruded within the container to compact the particle charge to substantially full density. The particle charge may include at least one rare earth element. The particle charge may be extruded through a noncircular extrusion die, specifically a rectangular die.
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