为了满足国防及民用工业对铝合金硬质阳极化膜层的特殊要求:如绝缘性、耐热性和耐腐蚀性等,经过工艺试验,弄清了温度、合金元素,阳极电流密度等因素对膜层的影响规律。温度下降,膜层耐磨性增强,但纯铝在6～11℃时膜层硬度更高;合金元素越多,氧化越困难,膜层薄而多孔,硬度低耐磨性和耐蚀性差;摸索出最佳阳极电流密度为2～5A/cm~2,并总结出一套铝合金硬质阳极化工艺。用上述新工艺处理蜗轮叶片 In order to meet the national defense and civilian industry aluminum hard anodized film special requirements: such as insulation, heat resistance and corrosion resistance, after the process test, to clarify the temperature, alloying elements, the anode current density and other factors The influence of film. However, the hardness of the pure aluminum is higher at 6 ~ 11 ℃. The more the alloying elements, the more difficult the oxidation. The thin and porous film has low hardness and poor wear resistance and corrosion resistance. The optimum anode current density was found to be 2 ~ 5A / cm ~ 2, and a set of aluminum alloy hard anodization process was concluded. Using the new process of processing turbine blades