FeSiCr磁粉心造粒粒径分布对其性能的影响  

Influence of FeSiCr magnetic particle pelleting size distribution on its properties

作　　者：周永川 吴献军 谢州 ZHOU Yongchuan;WU Xianjun;XIE Zhou(China electronics technology group No.9th research institute,Mianyang 621000,China;WESTMAG technology corporation,Mianyang 621000,China)

机构地区：[1]中国电子科技集团第九研究所,四川绵阳621000 [2]绵阳西磁科技有限公司,四川绵阳621000

出　　处：《粉末冶金工业》2021年第5期61-65,共5页Powder Metallurgy Industry

摘　　要：采用具有不同造粒粒径分布绝缘包覆磁粉心制备FeSiCr磁环样品,测试其物理和电磁性能。结果表明,相比于D50为62.497μm和95.788μm的磁粉心,合适粒径分布(D_(50)为74.290μm)的磁粉心更有利于料粉填充均匀性,减小孔隙尺寸和数量,磁环成形密度更高,能够提升磁环饱和磁感应强度和磁导率,可获得更优异综合性能。Samples of FeSiCr rings were prepared by insulation coating particle of different pelleting particle size distribution and tested for physical and electromagnetic properties.The results show that compared with magnetic particle with D_(50) of 62.497μm and 95.788μm,the powder with the proper particle size distribution(D_(50) is 74.290μm)is more conducive to the uniformity of the powder filling,reducing the pore size and number,and higher density of the forming core,improves the saturation magnetic induction strength and effective permeability of the magnetic ring.more excellent comprehensive performance can be obtained.

关 键 词：FeSiCr 造粒粒度 密度 有效磁导率 功率损耗 

分 类 号：TG113[金属学及工艺—物理冶金]