Iron-based soft magnetic powder for dust core use, manufacturing method thereof, and dust core

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United States of America Patent

PATENT NO 9472328
APP PUB NO 20140183402A1
SERIAL NO

14124866

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Abstract

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Disclosed is an iron-based soft magnetic powder for dust core use, which includes an iron-based soft magnetic matrix powder and a phosphate conversion coating on a surface of the matrix powder. The phosphate conversion coating contains nickel element and has an aluminum content of equal to or less than that in the matrix powder. The iron-based soft magnetic powder has such excellent heat resistance as to maintain electrical insulation at satisfactory level even after subjected to a high-temperature heat treatment.

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Patent Owner(s)

  • KOBE STEEL, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hojo, Hirofumi Takasago, JP 13 59
Hosokawa, Mamoru Kobe, JP 16 33
Kamijo, Tomotsuna Takasago, JP 6 18
Ohwaki, Takeshi Kobe, JP 32 357
Urushihara, Wataru Kobe, JP 23 231

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