Title:
METHOD FOR MANUFACTURING MAGNETIC WEDGE, MAGNETIC WEDGE, STATOR FOR ROTATING ELECTRIC MACHINE, AND ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/034009
Kind Code:
A1
Abstract:
Provided are: a magnetic wedge having high strength stability against temperature rise, and being compatible even with complex shapes; a stator for a rotating electrical machine; a rotating electrical machine; and a method for manufacturing the magnetic wedge. The method has: a first step for obtaining a mixture by mixing a binder and powder of Fe-based soft magnetic particles containing an element M that is more likely to be oxidized than Fe; a second step for obtaining a molded body by molding the mixture; a third step for subjecting the molded body to machining; and a fourth step for heat-treating the molded body, which has been subjected to the third step, to form surface oxide phases of the Fe-based soft magnetic particles that bind the Fe-based soft magnetic particles together between the particles of the Fe-based soft magnetic particles.
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Inventors:
NOGUCHI SHIN (JP)
NISHIMURA KAZUNORI (JP)
KIKUCHI KEIKO (JP)
ISHIKAWA YUKI (JP)
NISHIMURA KAZUNORI (JP)
KIKUCHI KEIKO (JP)
ISHIKAWA YUKI (JP)
Application Number:
PCT/JP2022/030416
Publication Date:
February 15, 2024
Filing Date:
August 09, 2022
Export Citation:
Assignee:
PROTERIAL LTD (JP)
International Classes:
H02K15/02; H02K3/493
Foreign References:
| JP2021136838A | 2021-09-13 | |||
| JPS61177143A | 1986-08-08 | |||
| JPS63154036A | 1988-06-27 | |||
| JPS6416233A | 1989-01-19 | |||
| JP2019058014A | 2019-04-11 |
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