Effects of electrode coating composition on deposition efficiency and power consumption

A new electrode coating slag system CaO-CaF₂-BaO-TiO₂-SiO₂ has been designed on the base of existing basic slag system. In view of uniform design method and computer program, the experiments were arranged. Nine to eleven coating composition were taken as independent variables (X₁ ~ X₁₁) which were divided into five levels in all twenty-nine experiments. Deposition efficiency and power consumption were taken as target functions (Y₁, Y₂). Experimental data were analyzed with mathematical and statistic software. The results provided the influencing trend figures of coating composition on deposition efficiency and power consumption. Two interrelated multinomial mathematic models between independent variables and functions were established. All the factors, involving X_i itself linear term, quadratic term, and mutual term, have been chosen to consider in the process. It turns out that the two regressive equations have highly significant meaning. With these trend figures and mathematic models, the adjusting direction of improving deposition efficiency and power consumption can be inquired, and target functions optimization searching has been done.