铝合金化学发黑新工艺.pdf

23 2 Vol. 23 No. 2 2004 4 Electroplatin Finishin Apr. 2004 邓立元, 钟宏, 杨余芳, 周书天 ( 1. 湖南科技大学化学化工学院, 湖南 湘潭 411201; 2. 中南大学化学化工学院化工冶金所, 湖南长沙 410000) : 开发出一种铝合金化学发黑新工艺通过正交试验 到了最佳工艺条件该工艺通过两步氧化着色 法, 到了结合力好耐蚀性强颜色鲜艳美观的铝合金黑色氧化膜 : 铝合金; 化学发黑; 两步氧化着色 : TG177 : B : 1004- 227X( 2004) 02- 0016- 03 New process of electroless blackening on aluminum alloy DENG Li-yuan, ZHONG Hon , YANG Yu-fan , ZHOU Shu-tian ( 1. School of Chemistry and Chemical En ineerin , Hunan University of Science and Technolo y, Xian tan 411201, China; 2. Institute of Chemical En ineerin and Metallur y, Chemical En ineerin School of Central South University, Chan sha 410000, China) Abstract: A new process of electroless blackenin on aluminum alloy was developed. Process parameters were opti- mized by ortho onal test. Black oxidation film on aluminum alloy with ood adhension, stron corrosion resistance and beautiful color can be obtained by two steps of oxidation colorin . Keywords: aluminum alloy; electroless blackenin ; two steps of oxidation colorin 21111 前处理[ 1~ 3] 1 ( 1) , 60~ 65 e 2 min, , , , : [ 1] NaOH 5~ 6 / L , Na CO 20~ 25 / L 2 3 , , Na PO #12H O 10~ 15 / L 3 4 2 ,