连续定向凝固Al-1%Si合金棒材制备工艺与应用  

Preparation Technique and Application of Al-1%Si Alloy Rod Produced by The Ohno Continuous Casting Process

作　　者：郭昌阳[1] 王自东[1] 薄希辉[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《铸造》2005年第2期126-128,133,共4页Foundry

基　　金：国家863计划项目(2002AA336070)。

摘　　要：采用自制的真空熔炼、氩气保护连续定向凝固设备制备出具有连续柱状晶组织的Φ8mm的Al 1%Si合金棒材。该棒材具有良好的塑性,不需任何中间退火,在室温下可直接拉拔制备出线径为20μm的超细丝材,其延伸倍数达16万倍。该超细丝材可用作集成电路封装键合丝。In this paper, a self-made vacuum melting and argon-shield continuous unidirectional solidification equipment is used to produce Al-1%Si alloy rod 8 mm in diameter with continuous columnar Structure. The plasticity of the bar made through this technology is very excellent. The alloy rod 8 mm in diameter can be drawn to ultra-fine wires in diameter of 20 μm at room temperature without any heat treatments, the elongation multiple is as high as 160000. This sort of ultra-fine wires can be used as bonding wires of electronics packaging in 1C industry.

关 键 词：连续定向凝固 铝硅合金 超细丝材 键合丝 

分 类 号：TG27[金属学及工艺—铸造]