铝及铝合金表面处理后的表面特征和粘接特性

Surface Features and Adhesion Properties of Surface Pretreated Aluminum and Its Alloys

本文介绍了铝材表面处理的目的与要求、经过各种机械和 (电 )化学方法处理后的表面特性 ,如表面形貌、表面粗造度、表面化学组成、表面润湿特性、表面氧化物的环境稳定性及其粘接特性。其中以磷酸阳极化作最后表面处理工序获得的效果最好 。

In this paper,the purposes and the requirments of the surface pretreatment of aluminum and its alloys,surface characteristics,such as morphology,roughness,chemical composition,wettability,environmental stability and adhesion properties of the pretreated surface by mechanical,chemical and anodizing approaches,were presented It was found that the phosphoric acid anodizing was the best final pretreatment step and that the etching before the anodiging did not have any influence on the final surface characteristics