田口式實驗設計於熔鹽鍍鋁之應用

The Application of Taguchi Method on Aluminum Electroplating from Fused Chloride Salt

本研究以田口式實驗計劃法，針對鍍浴溫度、鍍浴濃度、電流密度及陰極表面粗糙度等四個參數進行實驗規劃，探討熔鹽鍍鋁之最佳電鍍參數組合及電鍍反應機制。實驗結果顯示：鍍層抗拉結合強度均可達45MPa以上。綜合考慮鍍層厚度和鍍層均勻性之品質特性要求，於鍍浴氯化鋁濃度80wt%、鍍浴溫度控制於200℃之情況下，輸入電流密度20mA/cm2、陰極表面經1000號砂紙研磨，可得最佳之組合參數。

Taguchi Method was applied to explore aluminum electroplating from fused salt. Four electorplating parameters (i.e. operating temperature, electrolyte concentration, current density and surface roughness of cathode) were concerned. The results indicated that tensile strength of the coating layer was higher than 45MPa. For the requirement of plating speed and deposit homogeneity, the optimum conditions were obtained in the following: Electroplating from a bath of 80wt% AlCl3, at 200℃, with a current density of 20mA/cm2 on a steel cathode, which had been ground to 1000 mesh SiC emery paper.