前言铝及铝合金在国防工业中应用甚广,而且经常对铝制品表面进行阳极化处理,以便增强其耐磨性和防腐蚀性,从而保证产品具有良好性能,使产品质量大大提高。但是阳极化层厚度的测量问题,到目前为止还没有找到一个较好的方法。因此不少人在这个方面进行过探讨。据了解现在应用较多的测量方法有三种:第一金相法——将阳极化制品件切掉一块,并对其切面进行精细的研磨和抛光,然后将切块放到金相显微镜下面进行测量,得出阳极化层厚度。第二化学法——用一种溶解速度已知的试剂,滴在阳极化层 Preface Aluminum and aluminum alloys are widely used in the defense industry, and often anodized aluminum products in order to enhance their wear resistance and corrosion resistance, so as to ensure that the product has good performance, greatly improving product quality. However, the measurement of anodized layer thickness has not found a better method so far. Therefore, many people have conducted discussions in this area. It is understood that there are three more measurement methods used now: The first metallographic method - the anodized pieces of a piece of cut, and the section was fine grinding and polishing, and then cut into the metallographic microscope to measure, Obtain the anodized layer thickness. The second chemical method - with a known speed of dissolution of reagents, dropping in the anodized layer