Abstract
The surface state of the cryolite-alumina melt of the aluminum electrolyzer is investigated using an acA640-120gc industrial color camera (Basler, Germany) and AMS CAM (automated measurement system for cryolite-alumina melt) software package. The dependence of varying the total brightness at various alumina concentrations is found. The growth rate is determined and features of formation of a crust on the melt surface with various cryolite ratios are revealed.
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