Invention Grant
- Patent Title: Method for preparing neodymium-iron-boron permanent magnetic material
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Application No.: US16472034Application Date: 2017-12-21
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Publication No.: US11305345B2Publication Date: 2022-04-19
- Inventor: Liangcheng Sun , Zhanfeng Yang , Zhihong Zhang , Xiaoyu Liu , Shufeng Liu , Fan Yang , Jixiang Liu , Yu Wang , Jingya Li , Fei Lu , Shupu Lou , Hui Li , Peixin Chen , Yang Bai , Yu Cheng , Feng Wang , Tiancang Zheng , Feng Xia , Caina Sun
- Applicant: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS , NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD. , BAOTOU IRON & STEEL (GROUP) CO., LTD. , XIAMEN INSTITUTE OF RARE-EARTH MATERIALS , BAOTOU JINSHAN MAGNETIC MATERIAL CO. LTD
- Applicant Address: CN Baotou; CN Baotou; CN Baotou; CN Xiamen; CN Baotou
- Assignee: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS,NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.,BAOTOU IRON & STEEL (GROUP) CO., LTD.,XIAMEN INSTITUTE OF RARE-EARTH MATERIALS,BAOTOU JINSHAN MAGNETIC MATERIAL CO. LTD
- Current Assignee: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS,NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.,BAOTOU IRON & STEEL (GROUP) CO., LTD.,XIAMEN INSTITUTE OF RARE-EARTH MATERIALS,BAOTOU JINSHAN MAGNETIC MATERIAL CO. LTD
- Current Assignee Address: CN Baotou; CN Baotou; CN Baotou; CN Xiamen; CN Baotou
- Agency: Osha Bergman Watanabe & Burton LLP
- Priority: CN201611191110.6 20161221,CN201611192264.7 20161221,CN201611192277.4 20161221,CN201611192971.6 20161221,CN201611192973.5 20161221,CN201611195651.6 20161221,CN201710624106.2 20170727,CN201710624675.7 20170727
- International Application: PCT/CN2017/117641 WO 20171221
- International Announcement: WO2018/113717 WO 20180628
- Main IPC: B22F1/02
- IPC: B22F1/02 ; B22F1/17 ; B22F9/04 ; H01F1/057 ; H01F41/02
Abstract:
A method for preparing a NdFeB permanent magnetic material may include providing a covered NdFeB magnetic powder by depositing heavy rare earth particles or high-melting particles onto a NdFeB magnetic powder by physical vapor deposition; and performing orientation molding and sintering on the covered NdFeB magnetic powder to provide the NdFeB permanent magnetic material.
Public/Granted literature
- US20200001360A1 METHOD FOR PREPARING NEODYMIUM-IRON-BORON PERMANENT MAGNETIC MATERIAL Public/Granted day:2020-01-02
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