Establishment of Multipole Magnetizing Method and Apparatus Using a Heating System for Nd-Fe-B Isotropic Bonded Magnets

被引：3

作者：

Komura, Haruhiro ^{[1
]}

Kitaoka, Mikio ^{[1
]}

Kiyomiya, Teruo ^{[1
]}

Matsuo, Yoshio ^{[1
]}

机构：

[1] FDK Corp, R&D, Kosai City, Shizuoka 4310495, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2008年 / 44卷 / 11期

关键词：

Curie point; electromagnetic device; multipole magnetizing; Nd-Fe-B; stepper motor; thermal demagnetization;

D O I：

10.1109/TMAG.2008.2001488

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To contribute to the size reduction of electromagnetic devices, a multipole magnetizing method for Nd-Fe-B isotropic bonded magnets using a heating system without any magnetizing power supply was examined. After rapidly heating above their Curie temperature, the magnets are magnetized during cooling in the presence of a magnetic field generated by a set of Sm-Co permanent magnets. The level of magnetization can be tailored by variation of the final temperature to which the magnets are cooled in the presence of the magnetic field. Due to the heating process, the magnets show excellent thermal stability.

引用

页码：4266 / 4268

页数：3