发明名称 |
SINTERED MAGNET PRODUCTION DEVICE AND SINTERED MAGNET PRODUCTION METHOD |
摘要 |
The present invention addresses the problem of providing a sintered magnet production system using a press-less method capable of minimizing the distortion of a sintered magnet. It is a system including: a filling device 11 for filling a cavity 211 of a container 21 with alloy powder of a material for a sintered magnet; an orienting section 13 for orienting the alloy powder held in the cavity 211 by applying a magnetic field without applying a mechanical pressure to the alloy powder; and a sintering section 15 for sintering the alloy powder oriented by the orienting section 13, by heating the alloy powder without applying a mechanical pressure to the alloy powder. The orienting section includes: an air-core coil 131; and two ferromagnetic members 132 made of a ferromagnetic material to be arranged within the air-core coil 131 at respective open ends of the air-core coil 131 with a space for containing the container 21 in between. The ferromagnetic members 132 adjust the magnetic field within the air-core coil 131 toward a direction parallel to the axis of the air-core coil 131, whereby the distortion of a sintered magnet is minimized. |
申请公布号 |
EP2955731(A4) |
申请公布日期 |
2016.01.20 |
申请号 |
EP20140748535 |
申请日期 |
2014.02.03 |
申请人 |
INTERMETALLICS CO., LTD.;DAIDO STEEL CO.,LTD. |
发明人 |
SAGAWA, MASATO;MIZOGUCHI, TETSUHIKO;YOSHIKAWA, NORIO |
分类号 |
H01F41/02;B22F3/00;B22F3/02;B22F3/10;H01F1/055;H01F1/057;H01F1/08;H01F13/00 |
主分类号 |
H01F41/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|