Title:
R-T-B-SI-M-A-SERIES RARE EARTH PERMANENT MAGNET
Document Type and Number:
WIPO Patent Application WO/2022/178958
Kind Code:
A1
Abstract:
Provided is an R-T-B-Si-M-A-series rare earth permanent magnet, mainly comprising the following components in percentages by mass: 29.0-32.8% of R, 0.9-0.98% of B, 0.01-0.1% of Si, 0.05-2% of M and 0.2-1% of A. In the R-T-B-series rare earth permanent magnet, the addition of a specified amount of Si and appropriate amounts of Cu and Ga result in the remanence and the coercive force being improved, and the consistency of the remanence and the coercive force of the magnet during mass production can be significantly improved.
Inventors:
WEI ZHONGHUA (CN)
HE JIANFENG (CN)
FU SONG (CN)
ZHU XIAOHANG (CN)
HE JIEJIE (CN)
GAO KANG (CN)
HE JIANFENG (CN)
FU SONG (CN)
ZHU XIAOHANG (CN)
HE JIEJIE (CN)
GAO KANG (CN)
Application Number:
PCT/CN2021/088094
Publication Date:
September 01, 2022
Filing Date:
April 19, 2021
Export Citation:
Assignee:
ZHEJIANG INNUOVO MAGNETICS CO LTD (CN)
International Classes:
H01F1/057; C22C38/16
Foreign References:
| CN104240887A | 2014-12-24 | |||
| CN103377791A | 2013-10-30 | |||
| CN108511178A | 2018-09-07 | |||
| CN104674115A | 2015-06-03 | |||
| CN110021466A | 2019-07-16 | |||
| CN105355412A | 2016-02-24 | |||
| JP2001284111A | 2001-10-12 |
Attorney, Agent or Firm:
HANGZHOU SIKERUI PATENT OFFICE CO., LTD (CN)
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