基本信息:
- 专利标题： 소결 자석 제조 방법
- 专利标题（英）：Sintered magnet production method
- 专利标题（中）：烧结磁铁生产方法
- 申请号：KR1020157021020 申请日：2014-02-03
- 公开(公告)号：KR1020150103265A 公开(公告)日：2015-09-09
- 发明人： 사가와마사토 , 요시카와노리오
- 申请人： 인터메탈릭스 가부시키가이샤 , 다이도 토쿠슈코 카부시키가이샤
- 申请人地址： ****-*** Nasubigawa, Nakatsugawa-shi, Gifu, Japan
- 专利权人： 인터메탈릭스 가부시키가이샤,다이도 토쿠슈코 카부시키가이샤
- 当前专利权人： 인터메탈릭스 가부시키가이샤,다이도 토쿠슈코 카부시키가이샤
- 当前专利权人地址： ****-*** Nasubigawa, Nakatsugawa-shi, Gifu, Japan
- 代理人： 특허법인태평양
- 优先权： JPJP-P-2013-020343 2013-02-05
- 国际申请： PCT/JP2014/052413 2014-02-03
- 国际公布： WO2014123079 2014-08-14
- 主分类号： H01F41/02
- IPC分类号： H01F41/02 ; H01F1/057 ; H01F1/08 ; C22C38/00
The present invention is to provide a process for producing the sintered magnet is difficult to crack generation method of the sintered magnet to challenge. And a pulverizing step for pulverizing a way that it hydrogen the alloy ingot of the raw material for the sintered magnet including swaebeop, and the filling process of filling the alloy powder obtained in the pulverizing step in the cavity, the alloy by applying a magnetic field to the alloy powder as a method having a sintering step of sintering by heating the alignment step, the alloy powder at a predetermined temperature history (履歷) in which the powder oriented magnetic, predetermined by the sintering process, it is less than or equal to the sintering temperature higher than the dehydrogenation temperature and heating the alloy powder to the pressure holding temperature in an inactive gas atmosphere than in a high pressure atmosphere. By performing the heating treatment under pressure by such an inert gas, hydrogen gas molecules remaining in the alloy powder is prevented from suddenly released from the alloy powder, it can make it difficult to generate cracks in the sintered magnet.
公开/授权文献:
- KR101707362B1 소결 자석 제조 방법 公开/授权日：2017-02-15
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 |