铝及铝合金环保出光工艺.pdf

25 2 Electroplating Finishing Vo.l 25 No. 2 铝及铝合金环保出光工艺 徐金来, 刘钧泉, 罗韦因 (华南理工大学工业装备与控制工程学院, 广东 广州 510640) : 介绍了传统的铝及铝合金硝酸出光工艺, 指出了该工 , 艺存在的问题探 了硫酸 - 过氧化氢出光工艺替代传统硝 , 酸出光工艺的可能性,概述了酸性体系下的双氧水分解原理 , 稳定剂种类稳定机理和稳定性, 提出了几种评定硫酸 - 过氧 化氢出光溶液稳定剂效果的方法实验表明, 过氧化氢的分 , 解问题是硫酸 -过氧化氢出光工艺的关键 , : 铝及铝合金; 出光; 过氧化氢; 稳定剂 , : TG144 : B : 1004- 227X(2006) 02- 0049- 04 G reen bright d ipping pro cess fo r alum inum and a lum i- 2 num a lloy / / XB Jin-lai, LIU Jun-quan, LUO W e-i yin - A bstract: The trad itional bright dipping process for alum i- [ 1] num and alum inum alloy was introduced, and the ex isting , : 500 mL /L (w = problem s of the process w ere pointed out. The possibilities 65% ), , 30 ~ 60 s; 500 ~ 750 mL /L (w = of substituting sulfuric acid-hydrogen perox idebright dipping 65% ), 50~ 120 g /L , , 30~ 60 s; 500~ for nitric acid-based bright dipp ingw ere discussed. The de- 750 mL /L (w = 65% ), 100 mL /L (w = composition m echanism of hydrogen peroxide, inds of sta- 48% ), , 3~ 10 s- b ilizer, stabilization m echanism and stability of stab ilizers [ 2] , w ere summ arized. Several m ethods to assess the effects of - the stabilizers in sulfuric acid-hydrogen perox ide bright d ip- p ing were put forward. T est shows that the decom position of 1B1( hydrogen peroxide is the ey problem of sulfuric acid-hydro- ) gen perox ide bright dipp ing process. [ 3]