发明名称 |
Permanent magnet for motor, and method for manufacturing the permanent magnet for motor |
摘要 |
A method for producing a permanent magnet for a motor, including a step of producing a slurry of a magnet powder, a step of molding the slurry into a sheet form to prepare green sheets of the magnet powder, and a step of alternately laminating the green sheets of the magnet powder and an insulating layer and sintering the laminated plural layers. |
申请公布号 |
US9093218(B2) |
申请公布日期 |
2015.07.28 |
申请号 |
US200912922861 |
申请日期 |
2009.03.17 |
申请人 |
NITTO DENKO CORPORATION;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
Ozeki Izumi;Kume Katsuya;Nakayama Junichi;Fukuda Yuuki;Hoshino Toshinobu;Horio Tomokazu;Nakamura Kenji |
分类号 |
H01F41/02;H01F1/04;H01F10/12;H02K1/27;H02K15/03;H01F1/057 |
主分类号 |
H01F41/02 |
代理机构 |
Sughrue Mion, PLLC |
代理人 |
Sughrue Mion, PLLC |
主权项 |
1. A method for producing a permanent magnet for a motor, to be buried in a permanent magnet motor, comprising:
a step of pulverizing a magnet raw material in an organic solvent, a step of mixing the magnet raw material and a resin binder in the organic solvent to produce a magnet powder, a step of molding the slurry into a sheet form to prepare green sheets of the magnet powder, a step of applying a magnetic field to the green sheets thereby orienting the magnetic field, and a step of alternately laminating the green sheets of the magnet powder and an insulating layer and sintering the laminated plural layers, wherein the permanent magnet is a Nd-based magnet. |
地址 |
Osaka JP |