OPTIMIZATION OF CHROMIUM PLATING PROCESS OF Al-Si ALLOY
![](/skin/Gold/line_sep1.gif)
摘 要
研究了在铝硅合金样品表面电镀硬铬的工艺.用正交试验法对含纳米氧化铈添加剂的镀铬配方进行成分优化,并采用不同的电流密度、镀液温度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,得出了低铬酸电镀硬铬的工艺配方: 80 g/L CrO3,0.7 g/L H2SO4,3 g/L Cr3+,3 g/L CeO2;电镀温度为40 ℃,电流密度为30 A/dm2,电镀时间120 min.结果表明:纳米氧化铈添加剂的加入,在获得光滑致密镀层的基础上,大大降低了镀液中铬酐的含量,从而降低了对自然环境的污染.
![](flash/relate.gif)
![](flash/relate.gif)
![](flash/relate.gif)
![](flash/relate.gif)
![](flash/relate.gif)
![](flash/relate.gif)
Abstract
The technology of chromium plating on Al-Si alloy was studied.The optimized formulation for the chromium plating was 80 g/L CrO3,0.7 g/L H2SO4,3 g/L Cr3+and 3g/L CeO2.Compared with the appearance,thickness,hardness and adhesion of the chromium coating,the optimized parameters for the process were recommended to be 40 ℃,current density of 30 A/dm2,and electroplating time of 120 min.A smooth,chromium electrodeposit with high hardness and wearability was obtained.Concentration of chrome acid and environment pollution were decreased.
中图分类号 TQ153.1+1
所属栏目 应用技术
基金项目 广东工业大学青年基金(052017)
收稿日期 2006/10/5
修改稿日期
网络出版日期
![](/skin/blank.gif)
作者单位点击查看
引用该论文: CHEN Hai-yan,ZHU You-lan,LI Feng,SHU Chang. OPTIMIZATION OF CHROMIUM PLATING PROCESS OF Al-Si ALLOY[J]. Corrosion & Protection, 2007, 28(8): 417~419
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
![请选择您对本文的评价](/skin/Gold/evaluation/ev_01.gif)
![您认为本文一无是处!](/skin/Gold/evaluation/ev_02.gif)
![您认为本文较差,没啥用!](/skin/Gold/evaluation/ev_03.gif)
![您认为本文一般,没太大参考价值](/skin/Gold/evaluation/ev_04.gif)
![您认为本文尚可,值得参考](/skin/Gold/evaluation/ev_05.gif)
![您认为本文很好,值得推荐](/skin/Gold/evaluation/ev_06.gif)
参考文献
【1】关山,张琦,胡如南.利用XPS及电化学方法研究电镀Cr添加剂的作用机理[J].金属学报,2000,36(11):1179-1182.
【2】奚兵.稀土低铬酸镀硬铬[J].腐蚀与防护,2003,24(11):487-490.
【3】张根兴.应用稀土添加剂CF-201进行低铬酸镀铬[J].材料保护,1990,23(3):19-21.
【4】沈品华,钱宝梁.电镀铬新工艺[J].腐蚀与防护,2002,23(7):308-311.
【5】李志勇,李新梅.镀铬添加剂[M].电镀与涂饰,2002,21(2):43-50.
【6】李云雁,胡传荣.试验设计与数据处理[M].北京:化学工业出版社,2005:79-81.
【2】奚兵.稀土低铬酸镀硬铬[J].腐蚀与防护,2003,24(11):487-490.
【3】张根兴.应用稀土添加剂CF-201进行低铬酸镀铬[J].材料保护,1990,23(3):19-21.
【4】沈品华,钱宝梁.电镀铬新工艺[J].腐蚀与防护,2002,23(7):308-311.
【5】李志勇,李新梅.镀铬添加剂[M].电镀与涂饰,2002,21(2):43-50.
【6】李云雁,胡传荣.试验设计与数据处理[M].北京:化学工业出版社,2005:79-81.
相关信息