Title:
【発明の名称】磁気異方性ボンド磁石、それに用いる磁気異方性磁粉およびその製造方法、ならびに磁気異方性圧粉磁石
Document Type and Number:
Japanese Patent JP2731150
Kind Code:
B2
Abstract:
PURPOSE:To obtain an excellent magnetizability and reduce irreversible demagnetization factor at high temperatures by making a magnet consist of a specific magnetic anisotropic alloy. CONSTITUTION:A magnetic anisotropic alloy, which consists of R-TM-B-Ga alloy powder (wherein R is more than one or two kinds of rare earth elements including Y, and TM is a material produced by replacing Fe or part of Fe with Co, B is boron, and Ga is gallium) whose average crystal grain diameter is 0.01-0.5mum, and whose average grain diameter is 1-1000mum. Accordingly, a magnetic anisotropic bond magnet having high thermal stability as well as high magnetizability after assembly, and a magnetic powder therefor are obtained.
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Inventors:
ENDO MINORU
NOZAWA YASUTO
IWASAKI KATSUNORI
TANIGAWA SHIGEO
TOKUNAGA MASAAKI
NOZAWA YASUTO
IWASAKI KATSUNORI
TANIGAWA SHIGEO
TOKUNAGA MASAAKI
Application Number:
JP22738887A
Publication Date:
March 25, 1998
Filing Date:
September 10, 1987
Export Citation:
Assignee:
HITACHI KINZOKU KK
International Classes:
B22F1/00; B22F9/06; C22C38/00; H01F1/057; H01F1/06; H01F1/08; (IPC1-7): H01F1/08; B22F1/00; B22F9/06; C22C38/00; H01F1/06
Domestic Patent References:
| JP61179803A | ||||
| JP6318602A | ||||
| JP60100402A | ||||
| JP6115944A | ||||
| JP60243247A | ||||
| JP60238447A |