Title:
R-T-B MAGNET AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/193817
Kind Code:
A1
Abstract:
Disclosed are an R-T-B magnet and a preparation method therefor. The R-T-B magnet comprises the following components: R ≥30.0 wt.%, R being a rare earth element; 0.16-0.6 wt.% of Cu; 0.4-0.8 wt.% of Ti; Ga ≤0.2 wt.%; 0.955-1.2 wt.% of B; and 58-69 % of Fe, wherein wt.% is the mass percentage of the mass of each component in the total mass of the components. The R-T-B magnet in the present invention has relatively high residual magnetization, coercivity, squareness and high-temperature stability.
Inventors:
MOU WEIGUO (CN)
HUANG JIAYING (CN)
HUANG JIAYING (CN)
Application Number:
PCT/CN2022/072248
Publication Date:
September 22, 2022
Filing Date:
January 17, 2022
Export Citation:
Assignee:
FUJIAN CHANGTING GOLDEN DRAGON RARE EARTH CO LTD (CN)
International Classes:
H01F1/057; H01F1/055; H01F41/02
Foreign References:
| CN113161094A | 2021-07-23 | |||
| CN111599565A | 2020-08-28 | |||
| CN111613406A | 2020-09-01 | |||
| CN102412044A | 2012-04-11 |
Attorney, Agent or Firm:
SHANGHAI JOINT-WIN LAW FIRM (CN)
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