不锈钢镀铬液有机添加剂新工艺
ORGANIC ADDITIVE AND PROCESS FOR CHROMIUM PLATING ON STAINLESS STEEL
摘 要
往常规镀铬溶液中加入有机添加剂,采用不同的电流密度、镀液温度、pH值和电镀时间进行镀铬,经过对镀层的形貌、厚度及结合力等性能进行比较取舍,获得了最佳镀液配方和工艺：CrO3 250g/L,H2SO4 2.5g/L,Cr3+ 3g/L,甲醛8-10g/和丁二酸8-10g/L；在室温(20℃),镀液pH值为1.5,电流密度30A/dm2,电镀时间60min.该法既提高镀铬液的阴极电流效率又降低生产能耗,可获得光亮平滑、硬度高、结合力好的镀铬层.
镀铬
有机添加剂
Stainless steel
Chrome plate
Organic additive
Abstract
By adding some additives in conventional chromium plating solution,some key parametess of the technological process for chromium plating,such as current density,working temperature and working time,were studied.The optimum formulation for the chromium plating was determined to be 250g/L CrO3,2.5g/L H2SO4,3g/L Cr3+,10g/L HCHO and 10g/L (CH2COOH)2,and the optimized parameters for the process were recommended as follows:room temperature,pH value of the solution 1.5,current density of 30A/dm2 and electroplating time of 60 minutes.It could help not only to increase the cathodic current efficiency of the chromium-plating solution,but also to obtain smooth appearance,high hardness and wearability of chromium electrodeposits.
中图分类号 TQ153.2
所属栏目 应用技术
基金项目
收稿日期 2005/7/25
修改稿日期 2005/8/29
网络出版日期
作者单位点击查看
引用该论文: ZHU You-lan,CHEN Hai-yan,SHU Chang. ORGANIC ADDITIVE AND PROCESS FOR CHROMIUM PLATING ON STAINLESS STEEL[J]. Corrosion & Protection, 2006, 27(5): 247～250
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参考文献
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