铝合金表面碱性化学抛光液组分的最佳浓度  

Optimization of Concentration of Alkaline Chemical Polishing Solution for Aluminum Alloys

作　　者：徐善坤 李晓东[1,2] 张创优 李萍 张千峰[1,2] 

机构地区：[1]安徽工业大学分子工程与应用化学研究所,安徽马鞍山243002 [2]安徽工业大学安徽省冶金工程与资源综合利用重点实验室,安徽马鞍山243002

出　　处：《材料保护》2017年第12期46-48,共3页Materials Protection

基　　金：校企产学研联合科技攻关项目

摘　　要：铝合金碱性化学抛光效果较酸性抛光的差,为此,研究了低温下铝合金碱性化学抛光基础液及添加剂的最佳浓度。结果表明:以250g/L氢氧化钠、150g/L硝酸钠、15g/L硅酸钠、13g/L氟化钾为基础组分,分别加入30g/L硫脲、2g/L十二烷基硫酸钠、1.0g/L硫酸铜都可以使抛光效果得到提升,但加入30g/L硫脲效果更好,可以使铝合金抛光后的光泽度达到274 Gs,单位面积消耗量达0.01643kg/m^2。该工艺具有无污染、抛光光泽度高、操作简便等特点。In this work, the optimal concentration of alkaline chemical polishing solution for aluminum ＂alloys at low temperature was studied. Results showed that using 250 g/L sodium hydroxide, 150 g/L sodium nitrate, 15 g/L sodium silicate and 13 g/L potassium fluoride as basic components,the polishing quality was improved by adding 30 g/L thiocarbamide, 2 g/L sodium lauryl sulfate and 1.0 g/L copper sulfate. In particularly, adding 30 g/L thiocarbamide could improve the glossiness of aluminum alloy up to 274 Gs, and the unit area wastage was reduced to 0.016 43 kg/m2. The process possessed the advantages of no pollution,high polishing glossiness and easy operation and so on.

关 键 词：铝合金碱性化学抛光 抛光液组分 最佳浓度 添加剂 

分 类 号：TG175.3[金属学及工艺—金属表面处理]