Title:
IRON-CHROMIUM-COBALT ALLOY MAGNET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/172995
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: an iron-chromium-cobalt alloy magnet having improved magnetic characteristics, especially maximum energy product; and a method for producing the same. Provided is an iron-chromium-cobalt alloy magnet, wherein: the iron-chromium-cobalt alloy magnet includes titanium; the number density of Ti-enriched phases having a maximum diameter of 3 μm or greater in a cross-section is, on average, less than 1.0 per 10,000 μm2; and the square ratio represented by (BH)ma×/(Br×HcB) exceeds 0.72.
Inventors:
OKAMOTO SHINYA (JP)
OONUMA ATSUHIKO (JP)
OKAMURA NOBUYUKI (JP)
KUWABARA KOUSUKE (JP)
ADACHI SHUNNYA (JP)
SATO MASAHIRO (JP)
ISHII TAKAHIRO (JP)
OONUMA ATSUHIKO (JP)
OKAMURA NOBUYUKI (JP)
KUWABARA KOUSUKE (JP)
ADACHI SHUNNYA (JP)
SATO MASAHIRO (JP)
ISHII TAKAHIRO (JP)
Application Number:
PCT/JP2022/005363
Publication Date:
August 18, 2022
Filing Date:
February 10, 2022
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
C21D6/00; B22F3/105; B22F3/16; C22C30/00; C22C38/00; H01F1/04
Domestic Patent References:
| WO2017138191A1 | 2017-08-17 |
Foreign References:
| JPS5394216A | 1978-08-18 | |||
| JPS5573854A | 1980-06-03 | |||
| JP2005150355A | 2005-06-09 | |||
| CN101298648A | 2008-11-05 | |||
| JP2021042456A | 2021-03-18 |
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