高档烧结Nd-Fe-B制粉工艺研究  

Study of Milling Technology of Advanced Sintering Nd-Fe-B

作　　者：孔海旺[1] 孙述利[1] 郭东城[1] 刘翠荣[1] 

机构地区：[1]太原重型机械学院材料科学与工程,太原030024

出　　处：《太原重型机械学院学报》2003年第1期23-26,共4页Journal of Taiyuan Heavy Machinery Institute

摘　　要：本文探讨了在生产高档烧结Nd Fe B的过程中 ,球磨制粉工艺对其性能的影响。从试样的显微组织、粉末颗粒的晶体缺陷、大小形状等几方面进行了分析。实验结果表明 :N4 8级产品成型前粉末的颗粒大小应在 4 μm左右 ,其体积百分数在 80 % 85 % ,成球形或近似球形 ,表面光滑 。The influence of ball milling technology on its property during the production of advanced sintering Nd Fe B was studied. The sample microstructure, crystal defect of powder particles,size,shape and so on are analyzed . Experimental results show that before formation powder particle size of N48 is about 4μm, the volume percentage is 80% 85%. It is sphere or close to sphere and the surface is smooth without defect.

关 键 词：NDFEB永磁体 制粉 氧化 磁性能 烧结磁体 球磨 

分 类 号：TM273[一般工业技术—材料科学与工程] TF125.8[电气工程—电工理论与新技术]