Modified Nd—Fe—B permanent magnet with high corrosion resistance

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United States of America Patent

PATENT NO 9818515
SERIAL NO

13132266

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Abstract

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A type of sintered Nd—Fe—B permanent magnet with high corrosion resistance is produced by dual alloy method. The method comprises the following steps: preparing the powders of master phase alloy and intergranular phase alloy respectively, mixing the powders, compacting the powders in magnetic field, sintering the compacted body at 1050˜1125° C., and annealing at 920-1020° C. and 500-650° C. successively.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG UNIVERSITY311121 ZHEJIANG UNIVERSITY NO 866 YUHANGTANG ROAD XIHU DISTRICT HANGZHOU ZHEJIANG PROVINCE (NINGBO NO 6 INSTITUTE OF BINJIANG RESEARCH INSTITUTE ZHEJIANG UNIVERSITY) HANGZHOU CITY ZHEJIANG PROVINCE 311121
ZHEJIANG INNUOVO MAGNETICS INDUSTRY CO LTDHENGDIAN ELECTRONIC INDUSTRIAL ZONE DONGYANG CITY ZHEJIANG PROVINCE 322118

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fan, Xiongfei Dongyang, CN 2 5
Luo, Wei Hangzhou, CN 364 3816
Ma, Tianyu Hangzhou, CN 9 12
Yan, Mi Hangzhou, CN 27 144
Zhou, Xiangzhi Hangzhou, CN 21 125

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