粉末注射成形技术在烧结NdFeB永磁体制备中的应用  

Application of Powder Injection Molding Technique in Sintered NdFeB Permanent Magnets

作　　者：方华[1] 曲选辉[1] 段柏华[1] 李平[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,长沙410083

出　　处：《材料导报》2003年第9期28-31,共4页Materials Reports

摘　　要：全面介绍了采用注射成形技术制备烧结NdFeB永磁体的工艺过程;总结了粘结剂、磁场取向及成形、脱脂和烧结工艺对最终产品的影响;比较了注射成形和传统粉末冶金压制成形制备的NdFeB磁体的性能;在分析现状的基础上,指出了现阶段存在的问题。The process of making sintered NdFeB permanent magnets by powder injection molding is reviewed comprehensively in this paper. The influnces of binder,magnetic alignment,molding,debinding and sintering on the products are summarized,and a comparison is made between performance of PIM sintered NdFeB to that made by traditional molding. Finally existing problems are pointed out.

关 键 词：粉末注射成形技术 烧结工艺 NDFEB永磁体 粘结剂 磁场 PIM 

分 类 号：TM273[一般工业技术—材料科学与工程] TF124.3[电气工程—电工理论与新技术]