基本信息:
- 专利标题： Ｒ―Ｆｅ―Ｂ계 소결 자석 및 그의 제조 방법
- 专利标题（英）：R-Fe-B TYPE SINTERED MAGNET AND METHOD FOR MAKING THE SAME
- 专利标题（中）：R-Fe-B烧结磁体及其制造方法
- 申请号：KR1020160039253 申请日：2016-03-31
- 公开(公告)号：KR1020160117363A 公开(公告)日：2016-10-10
- 发明人： 히로타,고이치 , 나가타,히로아키 , 구메,데츠야 , 나카무라,하지메
- 申请人： 신에쓰 가가꾸 고교 가부시끼가이샤
- 申请人地址： 일본 도꾜도 지요다꾸 오떼마치 *쪼메 *방 *고
- 专利权人： 신에쓰 가가꾸 고교 가부시끼가이샤
- 当前专利权人： 신에쓰 가가꾸 고교 가부시끼가이샤
- 当前专利权人地址： 일본 도꾜도 지요다꾸 오떼마치 *쪼메 *방 *고
- 代理人： 장수길; 박보현
- 优先权： JPJP-P-2015-072343 2015-03-31; JPJP-P-2016-025548 2016-02-15
- 主分类号： H01F1/057
- IPC分类号： H01F1/057 ; H01F41/02 ; B22F3/10 ; C22C38/00 ; C22C38/02 ; C22C38/06 ; C22C38/12 ; C22C38/14 ; C22C38/16
The invention includes a triple point of the grain boundary phase boride M
2,
1. R
1 Fe
4 B
4 phase, not including the compounds, the main phase (R, HR)
2 (Fe, (Co))
14 B (R is a rare earth element, HR is Dy, Tb or Ho) to be configured and, a thickness of 0.01 to 1.0 ㎛ the HR-rich layer by coating and, amorphous and / or 10 ㎚ below a microcrystalline query (R, HR)-Fe (Co) - M
1-phase, or the (R, HR) -Fe (Co ) -M 1 R phase and the amorphous and a microcrystalline or crystalline 10㎚ of more than 50 atomic% or less
(R, HR) -M 1 that includes the mouth have a core / shell structure covered with a boundary phase, (R, HR) -Fe (Co) is 50% or more surface area coverage of the main phase having the HR-rich layer on the -M
1, and the grain boundary phase interposed columnar particles 2 the width of at least 10㎚, relates to a sintered magnet R-Fe-B or higher in average 50㎚.
Magnets of the present invention imparts a Dy, Tb and Ho is the content of at least one coercive force of 10kOe.
公开/授权文献:
- KR102394072B1 Ｒ―Ｆｅ―Ｂ계 소결 자석 및 그의 제조 방법 公开/授权日：2022-05-06
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 |
| ------H01F1/00 | 按所用磁性材料区分的磁体或磁性物体；磁性材料的选择 |
| --------H01F1/01 | .无机材料的 |
| ----------H01F1/03 | ..按其矫顽力区分的 |
| ------------H01F1/032 | ...硬磁材料的 |
| --------------H01F1/04 | ....金属或合金 |
| ----------------H01F1/047 | .....按其成分区分的合金 |
| ------------------H01F1/053 | ......含稀土金属的 |
| --------------------H01F1/055 | .......和磁性过渡金属的，如SmCo5 |
| ----------------------H01F1/057 | ........和Ⅲa族元素，如Nd2Fe14B |