
基本信息:
- 专利标题: RARE EARTH MAGNET AND PREPARATION METHOD THEREOF
- 申请号:US17357073 申请日:2021-06-24
- 公开(公告)号:US20210335525A1 公开(公告)日:2021-10-28
- 发明人: Guoan CHEN , Haojie WANG , Bin FANG , Fei DU , Zhan WANG , Yugang ZHAO
- 申请人: SANVAC (BEIJING) MAGNETICS CO., LTD. , BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.
- 申请人地址: CN Beijing; CN Beijing
- 专利权人: SANVAC (BEIJING) MAGNETICS CO., LTD.,BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.
- 当前专利权人: SANVAC (BEIJING) MAGNETICS CO., LTD.,BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.
- 当前专利权人地址: CN Beijing; CN Beijing
- 主分类号: H01F1/057
- IPC分类号: H01F1/057 ; H01F41/02 ; C22C38/00 ; C22C38/06 ; C22C38/10 ; C22C38/16 ; C22C38/14 ; C22C33/02
摘要:
A NdFeB rare earth magnet includes a main phase and a grain boundary phase including a white grain boundary phase and a gray grain boundary phase. In a microstructure observation area of the rare earth magnet, an area of the white grain accounts for 1˜3% of a total area of the microstructure observation area, and an area of the gray grain boundary phase accounts for 2˜10% of the total area of the microstructure observation area.
公开/授权文献:
- US12131850B2 Rare earth magnet and preparation method thereof 公开/授权日:2024-10-29
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 |