【摘要】 论述了注射成形烧结钕铁硼永磁体的工艺特点及发展趋势,分析了其生产工艺中的四个关键因素,包括磁粉、粘结剂与添加剂、注射过程和脱脂,并结合目前研究现状对这四个关键因素作了综合评述,介绍了热塑性体系和水溶性体系粘结剂在注射N d-F e-B烧结磁体中的应用;在分析现状的基础上,指出了现阶段存在的问题和发展方向。更多还原

【Abstract】 Trait and developing trend of sinteredNdFeB magnetsproduced bypowder injection moldingare discussed.Four key factors in production process are analysed,including magnetic powders,binders and additions,injection molding,debinding.The research on the four key factors is reviewed.The application of thermoplastics and aqueous binder in sintered magnets made by PIM is introduced.On the basis of these,the problems and the direction for further studies arepointed out.更多还原