制备粘结钕铁硼磁体的温压工艺研究  

RESEARCH ON WARM COMPACTION PROCESS FOR THE FABRICATION OF BONDED NdFeB MAGNET

作　　者：姜娟[1] 李瑛[1] 朱明原[1] 杨秋平[1] 田野[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《上海金属》2006年第4期9-13,共5页Shanghai Metals

基　　金：国家自然科学基金(50471100);上海市教委(04AB10);上海市科委纳米技术专项(0452nm055)

摘　　要：将温压成型工艺应用于粘结钕铁硼磁体的制备过程,可以提高粘结磁体密度和磁性能。通过对室温压制工艺和温压工艺制得的粘结磁体对比,考察了压制压力与粘结磁体密度以及磁体磁性能之间的关系;考察了三种适用于温压工艺的粘结剂对磁体性能的影响,获得了制备粘结磁体的合理工艺参数,并以此为指导在温压温度为130℃条件下,获得密度为6.25kg/m3、最大磁能积(BH)max为81kJ/m3的粘结磁体。The density and the maximum energy product could be improved by the application of warm compaction technique in preparing the bonded magnet. The relationship among pressure, density and performance were studied by investigating the bonded NdFeB magnets manufactured through room temperature compaction and warm compaction. The effects of three kinds of binders for the warm compaction on the magnet performance were introduced. A set of reasonable technical parameters for bonding NdFeB magnet were obtained, whereby the bonded NdFeB magnet with density of 6.25kg/m^3 and maximum energy product BHmax of 81kJ/m^3 was obtained at 130℃ .

关 键 词：粘结钕铁硼磁体 温压成型 粘结剂 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业] TM273[一般工业技术—材料科学与工程]