摘要
采用粉末冶金温压成形技术研制了非晶Fe78Si9B13软磁粉芯,分别研究了粘结剂233耐高温有机硅树脂和JH1123两种粘结剂对该种软磁粉芯的微观形貌、密度、磁导率、损耗、品质因数的作用,结果表明：粘结剂对提高粉末的压坯密度有重要作用,粘结剂的含量过高或过低都会降低磁粉芯的压坯密度。添加3.0%JH1123（质量分数,下同）粘结剂时获得的最高压坯密度是4.93 g/cm3。相比于硅树脂233粘结剂,同样含量下JH1123粘结剂对应的有效磁导率明显较高,添加3.0%JH1123粘结剂50 k Hz时的有效磁导率可达到最高值50.2（50 k Hz时）。50--200 k Hz下磁损耗均较小,品质因数在高频下可以保持在一个较高水平。
The warm compaction technology of powder metallurgy were used to prepare amorphous Fe78Si9B13 soft magnetic powder cores. The effects of both of bonding agent of 233 organic silicon resin resistant to high temperature and JH1123 on the microstructure, density, effective magnetic permeability, loss and quality factor were investigated separately. The results show： bonding agent is very important to increasing density of compacts. The too high or too low content of bonding agent can lead to decrease their density. The highest density 4.93 g/cm3 is achieved with adding 3.0% JH1123 bonding agent. The effective magnetic permeability with JHl123 bonding agent is obviously larger than that of 233 silicon resin resistant. The highest effective magnetic permeability 50.2 （ at 50 kHz） is achieved with adding 3.0% JHl123 bonding agent. Their magnetic loss is low at 50 - 200 kHz and quality factor keeps high level at high frequency.
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2015年第2期101-104,共4页
Powder Metallurgy Technology
基金
广东省重大科技专项项目(12ZK0442)
关键词
温压
非晶
软磁
粉芯
粘结剂
warm compaction
amorphism
soft magnetic property, powder core
bonding agent
作者简介
王志远（1958-），男，工学硕士，工程师，总经理。E—mail：469558808@qq．com
通信作者：黄钧声（1964-），男，工学博士，副教授。E—mail：GL@gdut．edu．cn
