Title:
METHOD FOR MANUFACTURING SINTERED MAGNET AND SINTERED MAGNET
Document Type and Number:
WIPO Patent Application WO/2019/107929
Kind Code:
A8
Abstract:
A method for manufacturing a sintered magnet according to an embodiment of the present invention comprises the steps of: preparing a NdFeB-based powder by a reduction-diffusion method; mixing the NdFeB-based powder and a rare earth hydride powder; heat-treating the mixture at a temperature of 600-850°C; and sintering the heat-treated mixture at a temperature of 1000-1100°C, wherein the rare-earth hydride powder is a NdH2 powder or a mixture powder of NdH2 and PrH2.
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Inventors:
CHOI IKJIN (KR)
LEE JUNG GOO (KR)
IN JUNEHO (KR)
KWON SOON JAE (KR)
UH HYOUNSOO (KR)
CHOE JINHYEOK (KR)
KIM INGYU (KR)
SHIN EUNJEONG (KR)
LEE JUNG GOO (KR)
IN JUNEHO (KR)
KWON SOON JAE (KR)
UH HYOUNSOO (KR)
CHOE JINHYEOK (KR)
KIM INGYU (KR)
SHIN EUNJEONG (KR)
Application Number:
PCT/KR2018/014849
Publication Date:
July 11, 2019
Filing Date:
November 28, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01F41/02; H01F1/057; H01F1/08
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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