Title:
ラジアル異方性焼結磁石の製造方法
Document Type and Number:
Japanese Patent JP4238971
Kind Code:
B2
Abstract:
To provide a radial anisotropic sintered magnet which has excellent magnetic properties without cracks or cracking at sintering or aging cooling even in such a form that the inner-outer diameter ratio is small.
This radial anisotropic sintered magnet contains a section which is formed cylindrical and oriented in a direction inclined at an angle of 30°or larger relative to the radial direction, not less than 2% and not more than 50% of a magnet volume, and the residual section of the magnet volume is oriented in the radial direction or with its inclination to the radial direction at angle of 30°or smaller.
COPYRIGHT: (C)2004,JPO
Inventors:
Koji Sato
Kawabata Mitsuo
Minowa Takehisa
Kawabata Mitsuo
Minowa Takehisa
Application Number:
JP2002310880A
Publication Date:
March 18, 2009
Filing Date:
October 25, 2002
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
B22F3/02; H02K1/27; H02K1/16; H02K15/03; H02K21/14
Domestic Patent References:
| JP6086484A | ||||
| JP2000175387A |
Attorney, Agent or Firm:
Takashi Kojima
Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa
Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa