Development of anisotropic bonded magnet applied to 150°C use

Author

Hamada, N. ; Noguchi, K. ; Mishima, C. ; Honkura, Y.

Author_Institution

Electro-Magnetic Products, Aichi Steel Corp., Aichi-Ken, Japan

Volume

41

Issue

10

fYear

2005

Firstpage

3847

Lastpage

3849

Abstract

An anisotropic bonded magnet (MAGFINE25), is about to be applied to dc motors for automobile use such as power seat motors and window motors. These dc motors have achieved a 50% reduction in weight and in volume, with the heat resistance of 120°C. However, the heat resistance of 150°C is required for motors near the engine, such as fan motors and wiper motors. We improved the heat resistance of the bonded magnet by the addition of Dy element to magnet powder, and succeeded in developing a bonded magnet with the heat resistance of 150°C.

Keywords

DC motors; automobiles; magnetic anisotropy; magnetic particles; permanent magnet motors; permanent magnets; 120 C; 150 C; Dy; Dy element; MAGFINE25; anisotropic bonded magnet; automobile; dc motors; fan motors; heat resistance; magnet powder; power seat motors; window motors; wiper motors; Anisotropic magnetoresistance; Bonding; DC motors; Heat engines; Magnetic anisotropy; Magnetic flux; Magnetic properties; Perpendicular magnetic anisotropy; Powders; Resistance heating; Anisotropic bonded magnet; d-HDDR; dysprosium; heat resistance;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.854870

Filename

1519464