一、前言随着我国国民经济的日益发展,铝的应用范围越来越广,特别在建筑业中,经氧化着色的铝合金门窗和装潢材料目前已大量使用。据有关资料报导,氧化着色表面处理好的铝合金,一股50年内表面完好无损。但是我国前几年,由于部分生产厂家技术力量和经验不足,用户缺乏使用知识和检测手段,所以使有些铝合金门窗和装潢只使用2 I. Introduction With the growing national economy in our country, the application of aluminum is more and more widely. Especially in the construction industry, the oxidized and colored aluminum alloy windows, doors and windows and decoration materials have been widely used at present. According to the information reported, the surface of a good oxidation of colored aluminum alloy, a 50-year surface intact. However, a few years ago in our country, due to the lack of technical know-how and experience of some manufacturers, users lacked knowledge of using and testing methods, so that only some aluminum alloy doors and windows and decorations were used only 2