Abstract
In this study, the slag viscosities of the basic system “SiO2-CaO-Al2O3” were measured and the effect of oxiside components on the viscosity was studied, from which an approximate viscosity formula was obtained. Also, measured values and estimated values were comparatively studied.
In addition, the reported data of the papers were analyzed and this analysis brought another formula which was more accurate and widely applicable. Then, a comparative study between the repoted data and estimated values was conducted, and equi-viscous lines on the phase diagram could be presented. From these studies, viscosity, that could only be shown on the graph in the past, can now be shown quantitatively as the estimation formula by the functions of componentsand temperature.
Lastly, we considered the two estimation formulae obtained.
