无铅焊锡合金粉末超音速雾化技术的研究

The Study on Supersonic Atomization for Making Pb-free Solder Powder

利用自行设计的超音速金属雾化成套设备成功地进行了无铅焊锡合金的雾化试验 ,获得了平均粒径为 6 .3μm和最大粒径小于 2 5 μm的超细合金粉末 ,同时考察了雾化温度对合金粉末粒度和形状的影响 ,并与亚音速雾化结果进行了比较 。

This paper triumphantly performed Pb-free solder atomization in our new supersonic atomizing equipment. The super fine powder with mean diameter 6.3μm and maximum diameter smaller than 25μm was obtained. The melt temperature influence on alloy powder size and shape was investigated. Comparing with subsonic atomization, it is show that new atomizing equipment is advanced and useful.