Title:
METHOD FOR REMOVING OXIDE FILM FROM METAL POWDER, AND METHOD FOR PRODUCING SINTERED METAL
Document Type and Number:
Japanese Patent JP2023002020
Kind Code:
A
Abstract:
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 capable of producing high-density sintered metal; and a method for producing sintered metal that gives sintered metal using the treated metal powder obtained by the method for removing the oxide film from metal powder.SOLUTION: A method for removing an oxide film from metal powder includes the steps of: putting an alkaline solution into a container having a cathode, and bringing the cathode into contact with the alkaline solution; putting untreated metal powder having a core particle and an oxide film thereon into the alkaline solution and bringing the cathode into contact with the untreated metal powder; bringing an anode into contact with the alkaline solution having the untreated metal powder put thereinto; and applying a voltage to between the cathode and the anode, subjecting the oxide film to a reduction reaction to remove the oxide film, resulting in treated metal powder.SELECTED DRAWING: Figure 1
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Inventors:
TADAI MOMO
Application Number:
JP2021102998A
Publication Date:
January 10, 2023
Filing Date:
June 22, 2021
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
B22F1/00; B33Y10/00; B33Y70/00; C22C33/02; C25F1/00; C25F7/00; H01F1/20; H01F1/22
Attorney, Agent or Firm:
Satoshi Nakai
Hiroki Matsuoka
Masayuki Imamura
Hiroki Matsuoka
Masayuki Imamura