| 发明名称 |
Magnet Manufacturing Method And Magnet |
| 摘要 |
A magnet manufacturing method has a step of preparing magnetic powder of a hard magnetic material, which includes one or more of an Fe-N-based compound and an R-Fe-N-based compound, a step of pressurizing and molding the magnetic powder at a pressure equal to or higher than a fracture pressure at which the particles of the magnetic powder are destroyed, to obtain a primary molding, and a step of heating the primary molding at a temperature lower than a decomposition temperature of the magnetic powder. The magnetic powder has at least two peaks in a particle size distribution. |
| 申请公布号 |
US2016303651(A1) |
申请公布日期 |
2016.10.20 |
| 申请号 |
US201615094706 |
申请日期 |
2016.04.08 |
| 申请人 |
JTEKT CORPORATION |
发明人 |
MIO Takumi;NISHI Koji;KIMOTO Yusuke;TAMURA Takashi |
| 分类号 |
B22F1/00;H01F41/02;H01F1/053 |
主分类号 |
B22F1/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A magnet manufacturing method comprising:
preparing magnetic powder of a hard magnetic material, which includes one or more of an Fe-N-based compound and an R-Fe-N-based compound; pressurizing and molding the magnetic powder at a pressure equal to or lower than a fracture pressure at which particles of the magnetic powder are destroyed in order to obtain a primary molding; and heating the primary molding at a temperature lower than a decomposition temperature of the magnetic powder, wherein the magnetic powder has at least two peaks in a particle size distribution. |
| 地址 |
Osaka JP |
