The situation of production of presintering ferrite magnetic materials by rotary kilns,which is adopted wide at many ferrite plants in China recent years,is briefly introduced.

• 本文简要叙述了近年来我国采用回转窑生产铁氧体预烧料的情况，着重阐述了我院严格控制产品质量的几种措施，用事实说明产品质量是企业的生命。