Effect of Chemical Concentration, Electric Current and Plating Time on Defect in Electroplating Industries

Abstract

This study aim to analysis of effect chemical concentration, electrical current and plating time on defect yellowish in electroplating product in barrel plating. After knowing the cause of the defect in the production process, improvement are made to prevent the occurance of defects. The observation was conducted on all the three manufacturing of electroplating company in west Java. The data was collecting during Jan-Jun (six months). There were chemical concentration, electric current and process plating time, for a total of 139 data was collected. By using partial least squares (PLS) method, the causes of defects in the plating product is performed. From the analysis with SMART-PLS it was found that yellowish can be explained by its variability of 9.4% (R2 0.094). The concentration of chemicals and currents used had a significant effect on yellowish (P-Value 0.002 and 0.026), while operating time did not significantly affect yellowish (P-value 0.319). Improvements were made by changing the KOH and K2SnO3 supply frequency standards, additive volume changes, filter pump type changes and adjusting production order. Upon repair, yellowish can decrease from 148.16 ppm to 40.03 ppm.