溶融鑛滓の粘性 (I) : CaO-SiO_2-Al_2O_3 系の粘性§

概要

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Viscosity of Synthetic CaO-SiO_2-Al_2O_3 slags was measured by rotating an inner-cylinder viscosimeter. Iso-viscosity lines at 1, 500 and 1, 600℃ were plotted on the diagram. Viscosity of CaO-SiO_2 slags at 1, 600℃ increased with SiO_2 content; and anomaly was not found at the composition corresponding to CaO.SiO_2. By a small amount of Al_2O_3 added to CaO-SiO_2 slag the viscosity was almost unaffected, but at more than 20% Al_2O_3 increase of the viscosity became remarkable. Viscosity of the CaO-Al_2O_3 side slags which had never been determined were found rather low and comparable to the low viscosity region in the CaO-SiO_2 side slags. And some considerations on structures of these molten slags were given from the experimental results.
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