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提高铸造铝合金AlSi10Mg电导率的新方法
New Method of Improving the Conductivity of As-cast AlSil0Mg Alloy
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- DOI:
- 作者:
- 潘祖强 段民 童自谦
PAN Zuqiang;DUAN Min;TONG Ziqian
- 作者单位:
- 浙江集思铝业有限公司 杭州汽轮铸锻有限公司
Zhejiang GIS Aluminum Co.,Ltd.,Hangzhou311401,China;Hangzhou Turbine Casting&Forging Co.,Ltd.,Hangzhou311106,China
- 关键词:
- 铝合金 细化组织 电导率
aluminum alloy refinement of microstructure electrical conductivity
- 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,减小回路电阻。通过控制AlSi10Mg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,导致电导率提升。In high-voltage switch arc extinction products,some products need to improve their own conductivity,to reduce the circuit resistance.By controlling the Ti content in Al Sil0Mg alloy(≤0.03%),Sr modification and heat treatment aging(l90℃)were adopted to improve the morphology and distribution of Si phase,leading to the improvement of conductivity.On the premise of ensuring mechanical properties,the conductivity of the alloy is increased to more than 23.5 Ms/m to meet the requirements of electrical materials.