Invention Grant
- Patent Title: Method for manufacturing rare earth magnet
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Application No.: US16099461Application Date: 2016-06-10
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Publication No.: US11222738B2Publication Date: 2022-01-11
- Inventor: Dong Hwan Kim , Koon Seung Kong
- Applicant: STAR GROUP IND. CO., LTD
- Applicant Address: KR Daegu
- Assignee: STAR GROUP IND. CO., LTD
- Current Assignee: STAR GROUP IND. CO., LTD
- Current Assignee Address: KR Daegu
- Agency: Novick, Kim & Lee, PLLC
- Agent Jae Youn Kim
- Priority: KR10-2016-0066570 20160530
- International Application: PCT/KR2016/006176 WO 20160610
- International Announcement: WO2017/209332 WO 20171207
- Main IPC: H01F1/08
- IPC: H01F1/08 ; H01F1/057 ; H01F41/02 ; B22F3/087

Abstract:
The present invention provides a method for manufacturing a rare-earth magnet, the method comprising the steps of preparing a rare-earth magnet raw material powder including R, Fe and B as composition components (R is one or more elements selected from the rare earth elements including Y and Sc); packing the raw material powder into a molding die, and compacting and molding the raw material powder while applying a magnetic field, wherein, in the compacting and molding step, compacting is performed biaxially, in the directions of X and Y axes, when the magnetic field is applied in the direction of Z axis.
Public/Granted literature
- US20190198209A1 METHOD FOR MANUFACTURING RARE EARTH MAGNET Public/Granted day:2019-06-27
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