Method of separating superalloy metal powder from admixed contaminants

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United States of America Patent

PATENT NO 7056400
SERIAL NO

10420126

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Abstract

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A method is provided for separating superalloy metal powder from contaminants, such as process-produced contaminants, by enhancing the magnetic properties thereof, such as by oxidizing or leaching of chromium, for example, followed by magnetic separation of the contaminants from the superalloy metal powder to thereby enhance the concentration of the contaminants. Heating conditions or mechanical agitation or both are employed to resist agglomeration of the metal powder before magnetic separation thereof from the contaminants. Certain preferred times and temperatures are disclosed.

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Patent Owner(s)

Patent OwnerAddress
RJ LEE GROUP INC350 HOCHBERG ROAD MONROEVILLE PA 15146

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Murphy, William J Pittsburgh, PA 170 2504
Schwerer, III Frederick Carl Export, PA 1 2
Spangler, Jr Charles E Harrison City, PA 2 3

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