一、概述水磁材料是磁性材料的一个重要分支。它在国民经济中的应用愈来愈广泛,已从高精尖的航空航天领域,扩展到了地质钻探、矿石筛选、石油开采、电机电器、仪器仪表、机械化工、纺织印染、节能环保、医疗保健、畜牧兽医等各个领域。为了使人们对永磁材料有个梗概了解,以便在开发应用中合理选择,现将有代表性的三代永磁材料从用料、工艺、性能等方面作一对比性介绍。 I. Overview Water magnetic material is an important branch of magnetic materials. It has been applied more and more widely in the national economy and has been extended from the highly sophisticated aerospace field to geology drilling, ore screening, oil exploration, electrical and mechanical equipment, instrumentation, mechanical and chemical engineering, textile printing and dyeing, energy conservation and environmental protection, healthcare , Animal husbandry and veterinary and other fields. In order to make people have a brief overview of permanent magnet materials, in order to choose a reasonable development and application, now a representative of the three generations of permanent magnet materials from materials, processes, performance and other aspects for a comparative introduction.