发明名称 |
RARE EARTH PERMANENT MAGNET AND METHOD FOR PRODUCING RARE EARTH PERMANENT MAGNET |
摘要 |
Provided are: a rare earth permanent magnet which has improved magnetic characteristics of a permanent magnet by having a high density; and a method for producing a rare earth permanent magnet. A compound (12) is formed by grinding a magnet starting material into a magnet powder and mixing the ground magnet powder with a binder. Then, the compound (12) is molded into a sheet on a supporting base (13) by hot melt molding, thereby producing a green sheet (14). After that, the molded green sheet (14) is heated and softened, and magnetic field orientation is carried out by applying a magnetic field to the heated green sheet (14). The green sheet (14) after the magnetic field orientation is calcined in a non-oxidizing atmosphere, and is subsequently sintered at a firing temperature, thereby producing a permanent magnet (1) that has a density of 95% or more. |
申请公布号 |
WO2015121913(A1) |
申请公布日期 |
2015.08.20 |
申请号 |
WO2014JP53112 |
申请日期 |
2014.02.12 |
申请人 |
NITTO DENKO CORPORATION |
发明人 |
OZAKI, TAKASHI;KUME, KATSUYA;OKUNO, TOSHIAKI;OZEKI, IZUMI;OMURE, TOMOHIRO;TAIHAKU, KEISUKE;YAMAMOTO, TAKASHI |
分类号 |
H01F1/08;H01F41/02 |
主分类号 |
H01F1/08 |
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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