镁合金光亮酸洗工艺的研究  

Study on process of bright pickling for magnesium alloys

作　　者：陈扣杰[1] 李建三[1] 郭艳婷[1] 

机构地区：[1]华南理工大学工业装备与控制工程学院,广东广州510640

出　　处：《电镀与涂饰》2006年第4期35-37,共3页Electroplating & Finishing

基　　金：华南理工大学SRP基金资助

摘　　要：采用含有CrO3、NO3^-、F^-的酸洗液，通过正交试验法．对镁合金光亮酸洗工艺进行了研究。结果表明，各因素对镁合金酸洗效果的影响程度大小依次为：ρ（F^-）〉P（NO3^-）〉t〉ρ（CrO3）。其中F^-和NO3^-的质量分数对镁合金酸洗效果的影响很大，必须严格控制在合适的范围内。镁合金光亮酸洗的最佳工艺配方为：200—270g／L CrO3，30，40g/L NO3^-．2～3．5g／L F^-常温，酸洗时间3min。以此为基础．还通过单因素试验探讨了以上4个因素对镁合金酸洗效果的影响。The process of bright pickling for magnesium alloys was studied with orthogonal tests. The pickling solution is consisted of CrO3 , NO3^ - and F^-, The results show that degree of influence of each factor is ρ （ F^- ） 〉 p （ NO3^- ） 〉 t 〉ρ（ CrO3） , and the content of F^- and NO3^ - must be controlled within a suitable range for their great influence on the pickling effectiveness and surface quality of magnesium alloy. The optimum formula of bright pickling for magnesium alloys is as follows： 200 - 270 g/L CrO3, 30 -40 g/L NO3 , 2 - 3.5 g/L F^-, room temperature, pickling time 3 rain. Based on this, the influences of the above four factors on pickling effectiveness of magnesium alloys were discussed with single factor test.

关 键 词：镁合金 酸洗 正交试验 

分 类 号：TG178[金属学及工艺—金属表面处理]