电脉冲孕育铝铜熔体电极加入方式

Electrodes immersion into Al-Cu melt mode in electric pulse modification

为增强电脉冲孕育熔体作用效果,采用数值模拟与实验验证相结合的方法,设计了区别于传统脉冲电极加入方式的绝缘套管法.研究结果表明:绝缘套管法可以把电势直接导入到熔体内部,减弱了普通电极加入方法导致的表面效应,明显改善了熔体内部电场、电势的分布状况,使电脉冲作用范围有了较大提高;设计了高温熔体内部电场强度测量装置,对熔体内部电场强度进行了测量,并对模型的有效性进行了检验.

In order to enhance the electric pulse modification effect, combining numerical simulation and experimental method, a new electrode immersing into melt mode was developed, which is different from the traditional mode. Study results show that the new electrode mode can directly import the potential into internal melt, largely reduce the surface effect that was caused by the ordinary electrode mode, significantly improve the potential and electric field distribution, and greatly increase the influence scope of EPM. In addition, electric field measurement device was designed which can endure high-temperature condition. The device can measure the electric field strength in the melt, and prove the model validity.