Title:
異方性交換スプリング磁石の製造方法とこれを備えてなるモータ
Document Type and Number:
Japanese Patent JP3983999
Kind Code:
B2
Abstract:
A Nd-Fe-B type rare earth magnet alloy is provided with hard magnetic phases each of which has a size equal to or less than 80 nm, soft magnetic phases each of which has a size equal to or less than 80 nm, with the hard and soft magnetic phases being present in a mixed structure, and partly anisotropic regions wherein axes of easy magnetization of the hard magnetic phases are aligned in one direction and each having a size equal to or greater than 0.1 mum. Such a magnet alloy is obtained using a strip casting method or ultra cooling method and serves as material for an anisotropic exchange spring magnet to be applied to a motor.
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Inventors:
Munekatsu Shimada
Hideaki Ono
Hideaki Ono
Application Number:
JP2001147831A
Publication Date:
September 26, 2007
Filing Date:
May 17, 2001
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
B22F3/00; H01F41/02; C22C33/02; C22C38/00; H01F1/057; H01F1/08; H02K15/03
Domestic Patent References:
| JP10261515A | ||||
| JP10163053A | ||||
| JP11008109A | ||||
| JP2001093723A | ||||
| JP2000178611A |
Attorney, Agent or Firm:
Mikio Hatta
Yasuo Nara
Katsuyuki Utani
Yasuo Nara
Katsuyuki Utani