双向脉冲电镀银对抗变色能力的影响

The Effect of Double Direction Pulse Parameterson Electrodeposition of Bright Silver

以银层抗变色特性为主要指标，对双向脉冲光亮镀银的工艺参数进行了优选，最佳脉冲参数为：频率８００Ｈｚ、正向占空比为１０％、负向占空比为零。在最佳参数下得到的银镀层光亮平滑，抗变色能力优良，与直流光亮镀银相比较，抗变色性能提高１０％以上。

The optimum pulse parameters of double direction pulse electrodeposition of bright sil- ver which are 800Hz pulse frequency, 1 0% positive duty cycle and 0 negative duty cycle were ob- tained by comparing the aati-tarish property of deposited silver. The anti-arish property of the smooth and bright deposit under optimum conditions is 10% over that of the deposit under dc conditions .