【摘要】 研究了铝合金材料多层电镀过程中的镀层内应力变化,结果表明半光亮镍镀层内应力增加最显著。而半光亮镍镀层内应力随镀液pH、阴极电流密度和氯离子质量浓度的增加而增大,随温度的升高而减小,由此提出了降低铝合金轮毂电镀层内应力的措施。更多还原

【Abstract】 In process of multilayer electroplating,the changes of internal stress of plating layers on aluminum alloy were studied.Effects of technological conditions on internal stress of plating layer were investigated during semi-bright nickel plating.The experimental results show that internal stress increases with increasing of pH value,current density,concentration of chloride ion,and decreases with rising of temperature.Thus,a measure for lowering internal stress of plating layer on aluminum alloy hub was proposed.更多还原