摘要
在铝合金熔体净化旋转喷吹技术的基础上 ,采用水力模拟实验研究了脉冲进气方式对气泡大小的影响。实验结果表明 :脉冲进气方式有利于产生射流 ,使气泡变小 ,并增加了气泡与熔体接触的比表面积 ,从而改善了除氢的动力学条件 ,有利于提高除氢效果。
Based on the technology of rotating impeller degassing in aluminum alloy melt, the effect of pulse gas current on the gas bubble size by studied with the water modeling method. Pulse gas current can be generated by using a pulse valve in the gas transportation system. The results show that, pulse gas current is advantageous to producing efflux and decreasing the gas bubble size, thus, the contact surface area between the melt and the gas is increased and the kinetic condition of degassing for hydrogen is improved.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2002年第1期44-47,共4页
The Chinese Journal of Nonferrous Metals
基金
国家重点研究开发规划资助项目 (G19990 64 90 0 )
中国博士后科学基金资助项目
上海市博士后基金资助项目
