一种用于铁氧体粉料喷雾造粒配方体系的研究  

The method of injection molding for ferrite core production

作　　者：朱晏军 聂敏 

机构地区：[1]深圳顺络电子股份有限公司,广东深圳518110

出　　处：《磁性元件与电源》2015年第9期121-126,149,共7页Components and Power

摘　　要：本文研究了一种用于铁氧体粉体喷雾造粒的双组分粘结剂，分别是大分子量的粘结剂A和小分子量的粘结剂B，进行了试验双组分粘结剂和传统PVA粘结剂喷雾造粒粉料，并将其压制成同规格252012磁芯（1模5穴）。实验数据表明：使用双组分粘结剂的粉料成型压力仅为902kg，而传统PVA粘结剂的粉料成型压力为1034kg。并且压制的磁芯密度要大0．05g／cm3，磁芯热震性能要好、430℃不开裂，磁芯的力学强度同比要大4N，为生产铁氧体造粒粉料提供了一种全新的配方体系。This paper has researched a two-component adhesive for ferrite powder spray granulation, which are the macromolecule hinder A and small molecular binder B. The test of two-component adhesive and the traditional PVA adhesive spray granulation powder, And these have pressed the same specifications of 252012 cores （five products per mould）. The experimental data show that： The use of two-component adhesive powder molding pressure is only 950kg, but the traditional adhesive molding pressure is 1050kg. core density of using two-component adhesive powder pressing is larger 0. 05g/cm3 than the traditional PVA adhesive spray granulation powder, thermal shock performance is better, 430℃ without cracking, the mechanical strength is better, which has provided a new formulation system for the production of ferrite powder granulation.

关 键 词：铁氧体粉料 喷雾造粒 性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]