| 发明名称 |
RARE EARTH MAGNET, ROTOR AND MANUFACTURING METHOD FOR RARE EARTH MAGNET |
| 摘要 |
A rare earth magnet may include a formed body having magnetic powder containing rare earth metal, the formed body being magnetized, a coating film which is formed on an outer face of the formed body, and a rust preventive treatment layer which is formed on a surface of the magnetic powder in a pore of the formed body. In a manufacturing method for a rare earth magnet, a forming step is performed in which a formed body having magnetic powder containing rare earth metal is formed, after that, a coating film forming step is performed in which a coating film is formed on an outer face of the formed body and, after that, a rust prevention processing step is performed in which rust preventive liquid is impregnated into the formed body. |
| 申请公布号 |
US2014354100(A1) |
申请公布日期 |
2014.12.04 |
| 申请号 |
US201414282473 |
申请日期 |
2014.05.20 |
| 申请人 |
NIDEC SANKYO CORPORATION |
发明人 |
FURUTA Yoshifumi;MIZUSAKI Yasushi;FURUYA Katsuyoshi |
| 分类号 |
H01F41/00;H02K1/27;H01F7/02 |
主分类号 |
H01F41/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A rare earth magnet comprising:
a formed body comprising magnetic powder containing rare earth metal, the formed body being magnetized; a coating film provided on an outer face of the formed body; and a rust preventive treatment layer provided on a surface of the magnetic powder in a pore of the formed body. |
| 地址 |
Nagano JP |
