| 铝合金表面钴盐法制备钴-锰复合转化膜 |
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| 引用本文： | 陈东初,龚伟慧,潘炜盛,吴建峰,李文芳.铝合金表面钴盐法制备钴-锰复合转化膜[J].机械工程材料,2009,33(5). |
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| 作者姓名： | 陈东初 龚伟慧 潘炜盛 吴建峰 李文芳 |
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| 作者单位： | 陈东初,潘炜盛,吴建峰,CHEN Dong-chu,PAN Wei-sheng,WU Jian-feng(佛山科技学院理学院,广东佛山,528000);龚伟慧,李文芳,GONG Wei-hui,LI Wen-fang(华南理工大学材料科学与工程学院,广东广州,510640)
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| 基金项目： | 广东省科技计划项目，佛山市科技发展专项基金，禅城区产学研资助项目 |
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| 摘 要： | 采用钴盐、高锰酸钾作为化学转化处理液的主要成分,在2024铝合金表面制备了钴一锰复合转化膜;通过正交试验优化了处理液的配方,分析了处理液成分对转化膜面密度的影响;并研究了处理液温度、pH值、处理时间等工艺参数以及润湿剂、促进剂等添加剂对转化膜表面形貌的影响.结果表明:添加高锰酸钾可以提高转化膜的成膜速率;最优处理液配方为10 g·L-1Co(CH3CO2)2·4H2O,3 g·L-1KMnO4,4 g·L-1NaNO3,3 g·L1氟化物,30 g·L-1CH2CO2Na;最佳成膜工艺参数为处理液温度50℃,pH值7,处理时间20 min;润湿剂、氟化物或钒盐成膜促进剂可改善成膜效果.
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| 关 键 词： | 铝合金 化学转化膜 面密度 钴盐 |
Preparation of Co-Mn Composite Conversion Coating on Aluminium Alloy by Cobalt Salt |
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| CHEN Dong-chu,GONG Wei-hui,PAN Wei-sheng,WU Jian-feng,LI Wen-fang.Preparation of Co-Mn Composite Conversion Coating on Aluminium Alloy by Cobalt Salt[J].Materials For Mechanical Engineering,2009,33(5). |
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| Authors: | CHEN Dong-chu GONG Wei-hui PAN Wei-sheng WU Jian-feng LI Wen-fang |
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| Affiliation: | CHEN Dong-chu1,GONG Wei-hui2,PAN Wei-sheng1,WU Jian-feng1,LI Wen-fang2(1.Foshan University,Foshan 528000,China,2.South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | A treating bath containing cobalt salt and potassium permanganate was used to produce an environment-friendly Co-Mn composite conversion coating on 2024 aluminium alloy surface.The fomula of the treating solution was optimized with an orthogonal experiment.The influences of solution components on the coating density were analyzed.The effects of the preparing parameters,such as solution temperature,pH value and immersion time,and the additives of wetting agent and accelerators on the surface morphology of co... |
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| Keywords: | aluminium alloy chemical conversion coating coating density cobalt salt |
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