烧结钕铁硼磁体磁通不可逆损失的检测  

Detection of Irreversible Flux Loss of Sintered Nd-Fe-B Magnets

作　　者：曹玉杰 吴玉程[1] 刘友好 徐光青[1] 张鹏杰 刘家琴 陈静武 衣晓飞[1,2] CAO Yu-jie;WU Yu-cheng;LIU You-hao;XU Guang-qing;ZHANG Peng-jie;LIU Jia-qin;CHEN Jing-wu;YI Xiao-fei(School of Materials Science and Engineering,Hefei University of Technology,Hefei,Anhui 230009,China;State Key Laboratory of Rare Earth Permanent Magnet Materials(Earth-Panda Advance Magnetic Material Co.Ltd),Hefei,Anhui 231500,China;BGRIMM Magnetic Materials and Technology(Fuyang)Co.Ltd,Fuyang,Anhui 236000,China;Institute of Industry and Equipment Technology,Hefei University of Technology,Hefei,Anhui 230009,China)

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009 [2]稀土永磁材料国家重点实验室(安徽大地熊新材料股份有限公司),安徽合肥231500 [3]北矿磁材(阜阳)有限公司,安徽阜阳236000 [4]合肥工业大学工业与装备技术研究院,安徽合肥230009

出　　处：《计量学报》2021年第2期228-231,共4页Acta Metrologica Sinica

基　　金：安徽省科技重大专项(17030901063,18030901098);安徽省重点研究和开发计划(1804a09020068);北京矿冶科技集团有限公司重点基金项目(20190898000002)。

摘　　要：磁通不可逆损失是永磁电机用烧结钕铁硼磁体的一个重要性能指标,其测量结果的准确性直接影响着电机的设计和磁体性能的选择。对比研究了不同测试条件下磁体的磁通不可逆损失。结果表明:磁通不可逆损失的测量结果主要受托盘性质(材质/规格)、磁体摆放间距和烘烤温度等因素的影响,为了获得准确的磁通不可逆损失测量结果,测量过程中应对这些因素进行有效控制。The irreversible flux loss is an important performance index of sintered Nd-Fe-B magnets for permanent magnet motor.The accuracy of its measurement results directly affects the design of motor and the selection of magnetic performance.The irreversible flux loss of magnets under different test conditions is studied.The results show that the irreversible flux loss is mainly affected by tray properties(material/specification),magnet spacing and baking temperature.In order to obtain accurate measurement results of irreversible flux loss,these factors should be effectively controlled in the measurement process.

关 键 词：计量学 烧结钕铁硼 磁通不可逆损失 开路/闭路 托盘材质/规格 间距 烘烤温度 

分 类 号：TB972[一般工业技术—计量学]