Cold press die lubrication method
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United States of America Patent
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-
Feb 4, 1992
Grant Date -
N/A
app pub date -
May 15, 1991
filing date -
May 15, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rare earth-containing powder is pressed into a compact at ambient temperatures using a solid lubricant applied only to the die wall and/or a core. The solid lubricant is applied by suspending lubricant powder in a fluorinated hydrocarbon liquid.
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