铝材常温封孔质量影响因素的探讨  

Factors affecting quality of sealing at room temperature for anodized aluminum alloys

作　　者：许旋[1] 林国辉[1] 罗一帆[2] 陈子超[3] 

机构地区：[1]华南师范大学化学系,广东广州510631 [2]中山大学北校区化学教研室,广东广州510089 [3]佛山教育学院化学系,广东佛山510000

出　　处：《电镀与涂饰》2004年第6期8-11,共4页Electroplating & Finishing

基　　金：华南师范大学测试基金;中山大学测试基金和横向课题基金资助项目(340026)。

摘　　要：　采用失重分析法检测了铝合金阳极氧化膜常温封孔的质量。讨论了封孔液中镍离子含量、氟化物含量、封孔添加剂含量、杂质离子以及封孔液的pH值、温度对封孔质量的影响。结果表明,封孔液中镍离子含量、氟化物含量、封孔添加剂含量是决定铝材封孔效果的关键性因素。经过实验得到铝合金阳极氧化膜常温封孔的适宜工艺条件为:5g/LNi(AC)2,0 5～0 8g/LF-,4 0g/L添加剂,温度30～35℃,时间10～20min,pH值5 5～6 5。The quality of sealing at room temperature for anodized aluminum alloys was analyzed by the method of weight loss. The influences of the Ni^+ content, F^- content, sealing additive content, impurities, pH value and temperature of sealing solution on the sealing quality were discussed. The results show that the Ni^+ content, F^- content, sealing additive content of the sealing solution are the key factors affecting the sealing quality. The suitable process conditions of the sealing were obtained by experiment as follows: 5 g/L Ni(AC)_2, 0.5～0.8 g/L F^-, 4.0 g/L additive, temperature of 30～35 ℃,sealing time of 10～20 min and pH value of 5.5～6.5。

关 键 词：铝合金 阳极氧化膜 常温封孔 封孔质量 

分 类 号：TQ153.6[化学工程—电化学工业] TG176[金属学及工艺—金属表面处理]