Title:
METHOD FOR PRODUCING IRON-BASED SOFT MAGNETIC COMPOSITE POWDER AND IRON-BASED SOFT MAGNETIC COMPOSITE POWDER
Document Type and Number:
WIPO Patent Application WO/2024/047971
Kind Code:
A1
Abstract:
Provided are a method for producing an iron-based soft magnetic composite powder and an iron-based soft magnetic composite powder. The method for producing an iron-based soft magnetic composite powder includes a first mixing step that adds an aluminum dihydrogen tripolyphosphate dihydrate powder to an iron-based soft magnetic powder and stirs and mixes to obtain a first composite powder in which a coating layer of aluminum dihydrogen tripolyphosphate dihydrate has been formed on the surface of the iron-based soft magnetic particles. In the spectrum of the aluminum dihydrogen tripolyphosphate dihydrate powder analyzed by x-ray diffraction, the peak intensity of the (112) plane of the aluminum dihydrogen tripolyphosphate dihydrate is 1.5 times or more the peak intensity of the (102) plane of aluminum orthophosphate.
Inventors:
NAKAMURA TAKECHIKA (JP)
TAKASHITA TAKUYA (JP)
MASUOKA HIROYUKI (JP)
MATSUZAKI AKIRA (JP)
TAKASHITA TAKUYA (JP)
MASUOKA HIROYUKI (JP)
MATSUZAKI AKIRA (JP)
Application Number:
PCT/JP2023/019208
Publication Date:
March 07, 2024
Filing Date:
May 23, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B22F1/102; B22F1/00; C22C33/02; C23C26/00
Foreign References:
| JP2015135920A | 2015-07-27 | |||
| JP2015106590A | 2015-06-08 | |||
| JP2021163855A | 2021-10-11 | |||
| JP2019151909A | 2019-09-12 | |||
| JPH04149278A | 1992-05-22 | |||
| JP2007313885A | 2007-12-06 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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