辐射取向整体Nd-Fe-B永磁环的研究现状及发展  

Research Situation and Development Trends of Radially Oriented Nd-Fe-B Integrated Ring Magnets

作　　者：王誉 辛博[1,3] 朱明刚[2] 刘国征[1,3] 张茂彩[3] 马文[4] WANG Yu;XIN Bo;ZHU Ming-gang;LIU Guo-zheng;ZHANG Mao-cai;MA Wen(State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization,Baotou Research Institute of Rare Earths,Baotou 014030,China;Research Institute of Functional Materials,Central Iron and Steel Research Institute,Beijing 100081,China;National Engineering Research Centre of Rare Earth Metallurgy and Function Materials Co.,Ltd.,Baotou 014030,China;Inner Mongolia Key Laboratory of Thin Film and Coatings,Hohhot O10051,China)

机构地区：[1]包头稀土研究院白云鄂博稀土资源研究与综合利用国家重点实验室,内蒙古包头014030 [2]钢铁研究总院功能材料研究所,北京100081 [3]稀土冶金及功能材料国家工程研究中心有限公司,内蒙古包头014030 [4]内蒙古自治区薄膜与涂层重点实验室,内蒙古呼和浩特010051

出　　处：《稀土》2022年第5期124-141,共18页Chinese Rare Earths

基　　金：内蒙自治区科技重大专项(2018-810);内蒙古科技计划项目(2019-1356)。

摘　　要：辐射取向整体Nd-Fe-B永磁环是一类特殊取向的稀土永磁体,该类磁体可通过辐射充磁或径向多极充磁制备辐射磁环或多级磁环,达到简化电磁耦合器件组装、改善电机特性的目的。辐射取向整体Nd-Fe-B永磁环在无刷直流电动机、陀螺仪、磁传感器、线性驱动器和闭锁装置等应用方面都有着非常广阔的市场前景。文章介绍了永磁环的主要分类及应用,综述了辐射取向整体Nd-Fe-B永磁环常用的制备方法以及应用现状,指出了该类材料在研究过程中存在的问题,展望了辐射取向整体Nd-Fe-B永磁环的发展前景。Radially oriented Nd-Fe-B integrated ring magnet is a type of permanent magnet with special orientation. Such ring magnet also can be multi-polar magnetized to prepare a series of even-numbered multi-pole magnetic ring with smooth magnetic transition and high-power factor, thus to achieve the purpose of simplifying the assembly of electromagnetic coupling devices and improving the characteristics of the motor. There are numerous applications for the radially oriented Nd-Fe-B integrated ring magnets in devices, such as brushless DC motor, gyroscope, magnetic sensor, linear actuators, and latching devices. This paper discusses the classifications, preparation technologies, magnetic properties and application fields of the radially oriented Nd-Fe-B integrated ring magnets. It points out some problems and shortcomings existed in the research process and summarizes the current state of the research and the development tendency of the ring magnets. At the end of the paper, some views on the prospects of the radially oriented Nd-Fe-B integrated ring magnets are further suggested.

关 键 词：钕铁硼永磁体 辐射取向 永磁环 稀土永磁体 

分 类 号：TM273[一般工业技术—材料科学与工程]