Title:
MAIN AND AUXILIARY ALLOY-BASED NEODYMIUM-IRON-BORON MAGNET MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/188550
Kind Code:
A1
Abstract:
Disclosed in the present invention are a main and auxiliary alloy-based neodymium-iron-boron magnet material and a preparation method therefor. A raw material composition of the main and auxiliary alloy-based neodymium-iron-boron magnet material of the present invention comprises a main alloy raw material and an auxiliary alloy raw material, and the mass percentage of the auxiliary alloy raw material in the raw material composition of the main and auxiliary alloy-based neodymium-iron-boron magnet material is 1.0-15.0 mas%. For the main and auxiliary alloy-based neodymium-iron-boron magnet material prepared by using the raw material composition, the coercivity is increased while high remanence is ensured, and the preparation method therefor can be suitable for engineering application.
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Inventors:
WEI XING (CN)
HUANG JIAYING (CN)
TANG ZHIHUI (CN)
HUANG QINGFANG (CN)
JIANG ZHIPENG (CN)
XU DEQIN (CN)
CHEN DAKUN (CN)
FU GANG (CN)
HUANG JIAYING (CN)
TANG ZHIHUI (CN)
HUANG QINGFANG (CN)
JIANG ZHIPENG (CN)
XU DEQIN (CN)
CHEN DAKUN (CN)
FU GANG (CN)
Application Number:
PCT/CN2022/072244
Publication Date:
September 15, 2022
Filing Date:
January 17, 2022
Export Citation:
Assignee:
FUJIAN CHANGTING GOLDEN DRAGON RARE EARTH CO LTD (CN)
International Classes:
H01F1/057; C22C33/02; C22C38/06; C22C38/10; C22C38/12; C22C38/14; C22C38/16; H01F1/058; H01F41/02
Domestic Patent References:
| WO2011122667A1 | 2011-10-06 |
Foreign References:
| CN103617855A | 2014-03-05 | |||
| CN103103442A | 2013-05-15 | |||
| CN108389711A | 2018-08-10 | |||
| CN111613403A | 2020-09-01 |
Attorney, Agent or Firm:
SHANGHAI JOINT-WIN LAW FIRM (CN)
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