发明名称 |
MODIFIED ND-FE-B PERMANENT MAGNET WITH HIGH CORROSION RESISTANCE |
摘要 |
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 |
申请公布号 |
EP2366188(A1) |
申请公布日期 |
2011.09.21 |
申请号 |
EP20080878517 |
申请日期 |
2008.12.01 |
申请人 |
ZHEJIANG UNIVERSITY;ZHEJIANG INNUOVO MAGNETICS INDUSTRY CO., LTD |
发明人 |
YAN, MI;ZHOU, XIANGZHI;FAN, XIONGFEI;MA, TIANYU;LUO, WEI |
分类号 |
H01F1/057 |
主分类号 |
H01F1/057 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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