Invention Grant
- Patent Title: Anisotropic bonded magnet and preparation method thereof
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Application No.: US17331531Application Date: 2021-05-26
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Publication No.: US11802326B2Publication Date: 2023-10-31
- Inventor: Yang Luo , Yuanfei Yang , Zilong Wang , Dunbo Yu , Hongbin Zhang , Jiajun Xie , Zhou Hu , Zhongkai Wang
- Applicant: GRIREM HI-TECH CO., LTD. , GRIREM ADVANCED MATERIALS CO., LTD. , Grirem (Rongcheng) Co., Ltd.
- Applicant Address: CN Hebei
- Assignee: GRIREM HI-TECH CO., LTD.,GRIREM ADVANCED MATERIALS CO., LTD.,Grirem (Rongcheng) Co., Ltd.
- Current Assignee: GRIREM HI-TECH CO., LTD.,GRIREM ADVANCED MATERIALS CO., LTD.,Grirem (Rongcheng) Co., Ltd.
- Current Assignee Address: CN Langfang; CN Beijing; CN Weihai
- Agency: Dragon Sun Law Firm, PC
- Agent Nathaniel Perkins
- Priority: CN 2010476262.0 2020.05.29
- Main IPC: C22C38/00
- IPC: C22C38/00 ; H01F1/057 ; H01F41/02 ; B22F7/06 ; H01F1/055 ; B22F1/102

Abstract:
An anisotropic bonded magnet and a preparation method thereof are provided. By stacking magnets having different magnetic properties and/or densities, the magnets in the middle have high properties and the magnets at two ends and/or the periphery have low properties, thereby compensating for a property deviation caused by a difference in pressing densities during a pressing process, and improving the property uniformity of the magnets in an axial direction. The method solves the problem of “low in the middle and high at two ends” caused by the phenomenon of non-uniform magnetic field orientation and density along a height direction during orientation and densification.
Public/Granted literature
- US20210375514A1 ANISOTROPIC BONDED MAGNET AND PREPARATION METHOD THEREOF Public/Granted day:2021-12-02
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