摘要
采用硫酸－草酸复合阳极氧化工艺，即在草酸阳极氧化前在硫酸溶液中氧化若干分钟，以避免零件发生烧蚀现象，同时能够提高草酸溶液的耐氯离子能力，而且适用于含铜铝合金。草酸溶液中添加１～５ｍＬ／Ｌ甲酸，可以消除氧化膜中的小白点现象。
An oxidizing technolog for compound sulphuric acid-oxalic acid, i. e. making sulphuric acid solution oxidized for several minutes before oxalic acid positive pole be oxidized ,can be used for proventing parts from ablation phenomen , and improving chlorion -proof abilityfor oxalic acid solution. The technology is also suited to containing copper aluminum alloy . Theadding of 1￣5mL/L formic acid in oxalic acid solution contributes to elimination of small spot in oxidizing films
出处
《上海航天》
1996年第5期61-63,共3页
Aerospace Shanghai
关键词
表面处理
草酸
阳极氧化
Technology , Surface processing , Process enginerring , Oxidation of oxalic acidpositive pole
