表面技术2012，Vol.41Issue(5)：114-118,5.
电化学氧化法再生不锈钢着色老化液的研究
Study on Regeneration of Ageing Liquid for Stainless Steel Coloring by Electrochemical Oxidation
王玥 1满瑞林 1赵鹏飞 1胡俊利1
作者信息
- 1. 中南大学 化学化工学院,长沙 410083
- 折叠
摘要
Abstract
Electrochemical parameters of Cr2(SO4)3 on Pb and Pb-PbO2 electrode in 1. 0 mol/L H2SO4 were measured by cyclic voltammetry, respectively. Dual-chamber diaphragm cell, with Pb-PbO2 electrode as the anode, was used to electrochemical oxidation. The optimum conditions of electro-oxidation process were listed as following: 5% H2SO4 as cathode liquid, 5 A/dm2 anode current density, 7. 5 h constant current electrolysis. The conversion of Cr3+ was 25. 97% , and current efficiency was 68. 45%. After being treated, the content of Cr6+ in ageing liquid was recovered to the effective range. The effect of colored stainless steels treated in the regenerated liquid was consistent with those treated in freshly prepared coloring liquid.关键词
电化学氧化/老化液/循环伏安/不锈钢着色Key words
electrochemical oxidation/ ageing liquid/ cyclic voltammetry/ stainless steel coloring分类
矿业与冶金引用本文复制引用
王玥,满瑞林,赵鹏飞,胡俊利..电化学氧化法再生不锈钢着色老化液的研究[J].表面技术,2012,41(5):114-118,5.
