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.
出处
《电镀与涂饰》
CAS
CSCD
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
关键词
镁合金
酸洗
正交试验
magnesium alloy
pickling
orthogonal test
