Title:
HIGH-CU AND HIGH-AL NEODYMIUM IRON BORON MAGNET AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/128802
Kind Code:
A1
Abstract:
A high-Cu and high-Al neodymium iron boron magnet and a preparation method therefor. The high-Cu and high-Al neodymium iron boron magnet comprises: 29.5-33.5% R, over 0.985% B, over 0.50% Al, over 0.35% Cu, over 1% RH, and 0.1-0.4% high-melting-point elements N and Fe, wherein the percentages are the mass percentages of the elements in the total amount of elements, and the mass percentages of the element contents must satisfy the following relationships: (1)1
Inventors:
MOU WEIGUO (CN)
XIE ZHIXING (CN)
HUANG JIAYING (CN)
HUANG QINGFANG (CN)
XIE ZHIXING (CN)
HUANG JIAYING (CN)
HUANG QINGFANG (CN)
Application Number:
PCT/CN2020/100582
Publication Date:
July 01, 2021
Filing Date:
July 07, 2020
Export Citation:
Assignee:
XIAMEN TUNGSTEN CO LTD (CN)
FUJIAN CHANGTING GOLDEN DRAGON RARE EARTH CO LTD (CN)
FUJIAN CHANGTING GOLDEN DRAGON RARE EARTH CO LTD (CN)
International Classes:
H01F1/057; H01F41/02
Domestic Patent References:
WO2015129861A1 | 2015-09-03 |
Foreign References:
CN110993234A | 2020-04-10 | |||
CN106098279A | 2016-11-09 | |||
CN110310795A | 2019-10-08 | |||
CN101552062A | 2009-10-07 | |||
CN105513737A | 2016-04-20 | |||
CN105575651A | 2016-05-11 |
Other References:
See also references of EP 4016561A4
Attorney, Agent or Firm:
SHANGHAI JOINT-WIN LAW FIRM (CN)
Download PDF:
Previous Patent: RTB-BASED PERMANENT MAGNET MATERIAL, PREPARATION METHOD THEREOF, AND APPLICATION THEREOF
Next Patent: AXIAL-FLOW IMPELLER
Next Patent: AXIAL-FLOW IMPELLER