铝合金由于比强度大,工艺性能好,具有良好的塑性和耐蚀性,并且可以进行热处理强化,因而广泛用来制造飞机及其发动机的各种主要结构和零件。铝合金硬度低,虽然热处理强化可以改善,但耐磨性还是很差,对于一些要求耐磨的铝合金零件就要通过表面处理提高其耐磨性能,铝合金镀铬就是提高其耐磨性能的一项技术。 Due to its high specific strength, good processability, good plasticity and corrosion resistance, and its ability to be heat-treated, aluminum alloys are widely used to manufacture the main structures and components of aircraft and their engines. Although the hardness of aluminum alloy is low, the heat treatment can be improved, but the wear resistance is still poor. For some aluminum alloy parts that are required to be wearable, the wear resistance should be improved by surface treatment. Aluminum alloy chrome is one Technology.