METHOD FOR REMOVING OXIDE FILM FROM METAL POWDER, METHOD FOR PRODUCING METAL POWDER, AND METHOD FOR PRODUCING SINTERED METAL

Japanese Patent JP2023001524

A

To provide a method for removing an oxide film from metal powder that removes an oxide film from untreated metal powder, giving treated metal powder that has its alloy composition in a molten state not to change from a desired composition; a method for producing metal powder that gives recycled metal powder using the treated metal powder obtained by the method for removing the oxide film from the metal powder; and a method for producing sintered metal that gives sintered metal using the recycled metal powder obtained by the method for producing the metal powder.SOLUTION: A method for removing an oxide film from metal powder includes the steps of: putting, into a solution containing a polar organic solvent and alkaline substance, untreated metal powder having a core particle and an oxide film thereon; and removing at least part of the oxide film from the untreated metal powder using the solution for obtaining, the treated metal powder.SELECTED DRAWING: Figure 1

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TADAI MOMO
MIYAGAWA TAKUYA

JP2021102307A

January 06, 2023

June 21, 2021

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SEIKO EPSON CORP

B22F1/00; B22F9/02; B22F9/08; B33Y10/00; B33Y70/00

Tatsuya Masuda
Kazuo Asahi

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