铝合金表面微弧氧化涂层制备的影响因素

Factors Affecting the Preparation of Aluminum Alloy Surface Micro-arc Oxidation Coating

微弧氧化技术是铝合金材料表面改性的一项重要技术。通过微等离子体的高温高压作用,使所生成的微弧氧化膜具有膜层厚、硬度高、耐磨、耐蚀、耐压绝缘以及抗高温冲击等优异特性,在军事、航天、航空、纺织、机械、汽车、石油、化工及医疗等工业部门有着广阔的应用前景,特别适用于高速运转且有耐磨要求的铝合金零件的表面处理;因此,铝合金表面微弧氧化涂层制备影响因素的研究和分析对铝合金材料表面改性结果的影响与发展有重大意义。在总结铝合金表面微弧氧化涂层制备的影响因素的基础上,分析讨论了不同因素对铝合金表面微弧氧化涂层制备的影响。通过选择合理的工艺参数可以获得综合性能良好的陶瓷膜层。

Micro-arc oxidation was an important technology to modify the surface of aluminum alloy.Through the high temperature and high pressure action of micro plasma,the micro arc oxidation film had excellent properties,such as thick film,high hardness,wear resistance,corrosion resistance,voltage insulation and high temperature impact resistance,etc.It had broad application prospects in military,aerospace,aviation,textile,machinery,automobile,petroleum,chemical and medical industries,it was especially suitable for high-speed operation,wear-resistant aluminum alloy parts surface treatment.Therefore,the study and analysis of the influencing factors on the preparation of aluminum alloy surface micro-arc oxidation coating had great significance to the results of surface modification of aluminum alloy.On the basis of summarizing the factors influencing the fabrication of micro-arc oxidation coating on aluminum alloy surface,the influence of different factors on the fabrication of micro-arc oxidation coating on aluminum alloy surface was analyzed and discussed.The ceramic film with good comprehensive performance can be obtained by selecting reasonable technological parameters.