摘要
在高压开关灭弧类产品中,部分产品需要通过提高自身电导率来减小回路电阻。通过控制Al Si10Mg合金中Ti含量(≤0.03%),采用Sr变质处理和热处理时效(190℃),改善其Si相的组织形态和分布,导致其电导率显著提升。结果表明,在保证其力学性能的前提下,将该合金电导率提高至23.5 ms/m以上,满足电工材料产品需求。
In high voltage switch arcing products,it is necessary to reduce the loop resistance by improve some products conductivity.By controlling the Ti content in Al Si10 Mg alloy(≤0.03%)and adopting Sr modification and heat treatment aging(190℃),the microstructure and distribution of the Si phase were improved,leading to a significant increase in its electrical conductivity.The results show that the electrical conductivity of the Al Si10 Mg alloy can be increased to more than 23.5 ms/m to meet the requirements of electrical materials on the premise of guaranteeing its mechanical properties.
作者
潘祖强
段民
童自谦
陈云祥
林波
PAN Zuqiang;DUAN Min;TONG Ziqian;CHEN Yunxiang;LIN Bo(Zhejiang Jisi Aluminum Co.,Ltd.,Hangzhou 311401,China;Hangzhou Steamer Casting-forging Co.,Ltd.,Hangzhou 311106,China;Zhejiang Institute of Mechanical&Electrical Engineering,Hangzhou 310053,China)
出处
《铸造技术》
CAS
2019年第11期1159-1162,共4页
Foundry Technology
关键词
铝合金
细化组织
电导率
aluminum alloy
refine microstructure
conductivity
