基本信息:
- 专利标题： 희토류 자석 및 그 제조 방법
- 专利标题（英）：Rare earth magnet and process for producing same
- 专利标题（中）：稀土磁铁及其生产方法
- 申请号：KR1020137023869 申请日：2012-03-08
- 公开(公告)号：KR101459253B1 公开(公告)日：2014-11-07
- 发明人： 가네코유지 , 다카다유키오 , 히라오카모토키 , 가나다게이우
- 申请人： 도요타 지도샤(주)
- 申请人地址： 일본국 아이치켄 도요타시 도요타쵸 *반지
- 专利权人： 도요타 지도샤(주)
- 当前专利权人： 도요타 지도샤（주）
- 当前专利权人地址： 일본국 아이치켄 도요타시 도요타쵸 *반지
- 代理人： 특허법인코리아나
- 优先权： JPJP-P-2011-052376 2011-03-10
- 国际申请： PCT/JP2012/056017 2012-03-08
- 国际公布： WO2012121351 2012-09-13
- 主分类号： H01F41/02
- IPC分类号： H01F41/02 ; H01F1/057 ; H01F1/08
To the inside a diffusion element such as Dy on the surface portion provides a method of producing a rare-earth magnet that can be spread effectively. Method of producing a rare-earth magnet of the present invention is attached for attaching a spreading element that can diffuse into the surface portion made of a magnetic material or a formed body of a rare earth alloy sintered compact particles processes; And character to the stone, heat in a vacuum, characterized by comprising the evaporation step of evaporating at least a portion of the diffusion element which is held within or on the surface portion of the magnet material. Attach process is the deposition process, evaporation process, subsequent to the deposition process, it is preferable that the heating step of heating the magnet ashes in vacuo. According to this method, while suppressing the amount of the diffusion element, such as a rare Dy, it is possible to improve the coercive force of the rare-earth magnet. In other words, obtaining a coercive force is significantly high efficiency of rare-earth magnet according to the present invention.
公开/授权文献:
- KR1020130132981A 희토류 자석 및 그 제조 방법 公开/授权日：2013-12-05
信息查询:
EspacenetIPC结构图谱:
| H | 电学 |
| --H01 | 基本电气元件 |
| ----H01F | 磁体；电感；变压器；磁性材料的选择 |
| ------H01F41/00 | 专用于制造或装配包含在本小类的装置的设备或方法 |
| --------H01F41/02 | .用于制造磁芯、线圈或磁体的 |