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一、前言随着我国国民经济不断发展,机械和光学电子技术的进步,照相机的结构件变得更加复杂,透镜口径尺寸也在加大,更迫切地要求照相机构件材料向轻量化发展。由于铝材具有重量轻、耐蚀性好以及便于加工成型等特点,大大地加速了它在照相机工业中的应用。目前,西德、日本、美国等国家已将铝合金用于照相机工业中。例如,日本相机透镜镜筒90%是用铝材制成。特别是铝合金
I. Preface As China’s national economy continues to develop, advances in mechanical and optical electronic technology have made the structure of the camera more complicated and the size of the lens aperture also increased. More and more pressing is being demanded for the development of lightweight lightweight camera components. Due to its light weight, good corrosion resistance and ease of processing and molding, aluminum has greatly accelerated its use in the camera industry. At present, Germany, Japan, the United States and other countries have aluminum for the camera industry. For example, Japanese camera lens barrel 90% is made of aluminum. Especially aluminum