The viscosity of the slag of Depletion Elec tric Furnace with internal cylinder traversing method and the viscosity acti vity energies at low temperature and high temperature were calculated.

• 采用内圆柱体转动法测定了贫化电炉渣的粘度系数,并计算出了其在低温及高温区间的粘滞活化能。