安庆市铝合金外壳是一种常见的工业材料，广泛应用于工业生产，如汽车制造、飞机制造、船舶制造、钢铁冶金、化工生产、电力工业、石油工业、煤炭工业、冶金工业、水泥工业、建筑工业等。铝合金外壳具有良好的耐腐蚀性、耐磨损性、耐冲击性、耐高温性、耐低温性、耐化学腐蚀性、耐久性、强度高、密度小、质量轻、吸声性、导电性、热导率高、反射率低、不易发生燃烧、无毒、无污染等优点。

　　With the rapid development of industry and technology, the demand for aluminum alloy shell is increasing day by day, and its application scope is also expanding. However, in actual production, due to the influence of various factors, the surface of aluminum alloy shell is easy to be corroded and damaged, which seriously affects the normal production and use of enterprises, and brings great economic losses. In view of this problem, the repair and improvement of aluminum alloy shell has become an important research direction in the field of surface engineering.

　　The repair technology of aluminum alloy shell mainly includes manual repair and automatic repair. The manual repair technology is suitable for repairing small defects, while the automatic repair technology is suitable for repairing large defects. In addition, the repair of aluminum alloy shell can be divided into cold repair and hot repair according to the repair temperature.

　　The cold repair technology of aluminum alloy shell is a kind of repair technology with low cost, simple operation and good repair effect, which is suitable for the repair of small defects. The cold repair technology of aluminum alloy shell mainly includes grinding and welding, which can be used to repair the surface defects of aluminum alloy shell, and improve the surface performance of aluminum alloy shell.

　　The hot repair technology of aluminum alloy shell is a kind of repair technology with high repair effect and good surface performance, which is suitable for the repair of large defects. The hot repair technology of aluminum alloy shell mainly includes gas welding, arc welding, laser welding and electron beam welding. The hot repair technology of aluminum alloy shell can not only repair the surface defects of aluminum alloy shell, but also improve the surface performance of aluminum alloy shell.

　　In order to further improve the repair effect of aluminum alloy shell, the surface of aluminum alloy shell is usually coated with a layer of protective film after repair. The commonly used protective film is anodic oxide film, which can improve the corrosion resistance, wear resistance and heat resistance of aluminum alloy shell.

　　安庆市铝合金外壳的修复技术注重对生产过程中发生的损伤进行精细化修复，大大提高了产品的使用寿命，减少了企业的生产成本，提高了企业的经济效益。