Hamre, Schumann, Muller & Larson, P.C.
Modified Nd—Fe—B permanent magnet with high corrosion resistance
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.
ZHEJIANG UNIVERSITY ZHEJIANG INNUOVO MAGNETICS INDUSTRY CO., LTD
H H
H01F H01F
inventional inventional
Mi Xiongfei Xiangzhi Wei Tianyu
Yan Fan Zhou Luo Ma