Title:
IRON-BASED POWDER FOR POWDER MAGNETIC CORE, AND POWDER MAGNETIC CORE
Document Type and Number:
WIPO Patent Application WO/2020/179377
Kind Code:
A1
Abstract:
Provided is an iron-based powder for a powder magnetic core, from which a powder magnetic core having a high apparent density and a high green density can be produced. An iron-based powder for a powder magnetic core, which has a largest particle diameter of 1 mm or less, wherein the median value of the degrees of circularity of particles constituting the iron-based powder for a powder magnetic core is 0.40 or more, and the distribution constant in the Rosin-Rammler equation is 0.30 to 90.0 inclusive.
Inventors:
YAMAMOTO NAOKI (JP)
TAKASHITA TAKUYA (JP)
NAKASEKO MAKOTO (JP)
KOBAYASHI AKIO (JP)
UNAMI SHIGERU (JP)
TAKASHITA TAKUYA (JP)
NAKASEKO MAKOTO (JP)
KOBAYASHI AKIO (JP)
UNAMI SHIGERU (JP)
Application Number:
PCT/JP2020/005168
Publication Date:
September 10, 2020
Filing Date:
February 10, 2020
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B22F1/00; B22F1/16; B22F3/00; C22C38/00; H01F1/24; H01F1/26; H01F27/255
Domestic Patent References:
| WO2020026949A1 | 2020-02-06 |
Foreign References:
| JP2006283166A | 2006-10-19 | |||
| JP2014160828A | 2014-09-04 | |||
| JPS6123702A | 1986-02-01 | |||
| JP2006283167A | 2006-10-19 | |||
| JP2006283166A | 2006-10-19 |
Other References:
ANONYMOUS: "Mie Theory, the first 100 years", MALVERN, 1 January 2017 (2017-01-01), pages 1 - 10, XP093027128, Retrieved from the Internet [retrieved on 20230227]
See also references of EP 3936256A4
See also references of EP 3936256A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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