Rare earth magnet and preparation method thereof

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United States of America

PATENT NO 12131850
APP PUB NO 20210335525A1
SERIAL NO

17357073

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Abstract

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A NdFeB rare earth magnet includes a main phase and a grain boundary phase including a white grain boundary phase and a gray grain boundary phase. In a microstructure observation area of the rare earth magnet, an area of the white grain accounts for 1˜3% of a total area of the microstructure observation area, and an area of the gray grain boundary phase accounts for 2˜10% of the total area of the microstructure observation area.

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Patent Owner(s)

Patent OwnerAddress
BEIJING ZHONG KE SAN HUAN HI-TECH CO LTD27TH FLOOR BLOCK A BUILDING A1 NO 66A ZHONGGUANCUN EAST ROAD HAIDIAN DISTRICT BEIJING 100190 BEIJING CITY BEIJING CITY 100190
SANVAC (BEIJING) MAGNETICS CO LTD102200 10 CHUANGXIN ROAD CHANGPING DISTRICT BEIJING MUNICIPAL DISTRICT BEIJING CITY 102200

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Guoan Beijing, CN 23 86
Du, Fei Beijing, CN 11 69
Fang, Bin Beijing, CN 45 120
Wang, Haojie Beijing, CN 10 12
Wang, Zhan Beijing, CN 84 538
Zhao, Yugang Beijing, CN 5 13

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