Hot pressed magnets in open air presses

Details Hot pressed magnets in open air presses Hot pressed magnets in open air presses

1991-05-15

1992-03-03

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 38, 419 57, 419 66, 419 48, 148101, 148105, B22F 100

Patent

active

050930761

ABSTRACT:
This invention describes a practice for the hot pressing and/or hot working of rare earth element-containing alloy powders using open-to-the-air presses. The rare earth-containing powder is pressed into a compact at ambient temperatures using a solid lubricant only on the die wall. This compact is then hot pressed in an open air press utilizing a heated die flooded with argon.

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