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冰晶石-氧化铝熔液向炭阴极的渗透是影响铝电解槽寿命的决定性因素.本文在实验室内研究电极极性、电流密度、添加铝、NaF/AlF_3分子比、阴极材料和反向电解诸因素对于湿润和渗透的影响,进而讨论向炭阴极渗透的机理问题.认为,电毛细现象以及铝和钠的作用均能增进冰晶石-氧化钼熔液对炭阴极的湿润和渗透.着重阐述了电毛细湿润和渗透的概念.
The penetration of cryolite-alumina melt into the carbon cathode is the decisive factor affecting the life of the aluminum reduction cell.In this paper, the electrode polarity, current density, addition of aluminum, NaF / AlF 3 ratio, cathode material and reverse electrolysis The factors that affect the wetting and infiltration, and then discuss the mechanism of the infiltration to the carbon cathode.It is believed that the phenomenon of electrocapillaries and the action of aluminum and sodium can enhance the wetting and infiltration of cryocarbon-molybdenum oxide on carbon cathode. The concept of electric capillary wetting and penetration.