
基本信息:
- 专利标题: Method of Producing Sintered Magnet
- 申请号:US17635801 申请日:2020-10-07
- 公开(公告)号:US20220310292A1 公开(公告)日:2022-09-29
- 发明人: Tae Hoon Kim , Soon Jae Kwon , Hyounsoo Uh , Ikjin Choi , Jinhyeok Choe , Ingyu Kim , Eunjeong Shin , Nakheon Sung
- 申请人: LG Chem, Ltd.
- 申请人地址: KR Seoul
- 专利权人: LG Chem, Ltd.
- 当前专利权人: LG Chem, Ltd.
- 当前专利权人地址: KR Seoul
- 优先权: KR10-2019-0123870 20191007
- 国际申请: PCT/KR2020/013643 WO 20201007
- 主分类号: H01F1/057
- IPC分类号: H01F1/057 ; H01F41/02 ; B22F3/10 ; B22F3/26 ; C22C28/00 ; C22C38/16 ; C22C38/10 ; C22C38/06 ; C22C38/00 ; C22C1/04
摘要:
A method of producing a sintered magnet is disclosed herein. In some embodiments, a method of producing a sintered magnet comprises, sintering a R—Fe—B based magnetic powder to produce a sintered magnet; wherein the R is Nd, Pr, Dy, Ce or Tb, and infiltrating a eutectic alloy into the sintered magnet, wherein the eutectic alloy contains Pr, Al, Cu and Ga, and wherein infiltration the eutectic alloy includes applying the eutectic alloy to the sintered magnet and heat-treating the sintered magnet to which the eutectic alloy is applied.
公开/授权文献:
- US12205738B2 Method of producing sintered magnet 公开/授权日:2025-01-21
IPC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 |