低压电子铝箔耐蚀性的研究与应用

采用对比实验,研究了腐蚀工艺对低压电子铝箔耐蚀性的影响。当腐蚀溶液中w(HCl)为15%～25%、w(H2SO4)为10%～20%,温度为85℃,电流密度为0.40A/cm2,腐蚀时间为3min时,铝箔腐蚀效果最佳,其耐蚀性数值(腐蚀前后质量差值与原光箔质量之比)为0.70%～0.83%。该工艺可迅速准确地判断低压电子铝箔的耐蚀性,平均每个样品所花时间仅为26min。

Research and application of corrosion resistance on electronic aluminium foil for low voltage applications

Through contrast test,the effect on etching process of electronic aluminium foil for low voltage applications to its corrosion resistance was studied.The best results show that,under following conditions: w(HCl)=15%～25%,w(H_2SO_4)=10%～20%,the corrosion solution temperature of 85℃,the current density of 0.40 A/cm~2,the etching time of 3 min,the value of corrosion resistance(the rate of corroded aluminium' mass change and mass of plain foil)can reach 0.70%～0.83%.The process can judge corrosion resistance of electronic aluminium foil for low voltage applications promptly and right,and it only take 26 min on the average for every example.