Abstract The purpose of this work was to investigate whether a modified anodizing process can successfully be applied to an ADC14 aluminum alloy casting to reduce its wear in a continuously-variable transmission component. The oxide film is formed by pulse anodizing after alloy heat treatment. The thickness and hardness of the oxide film were increased by adjusting the heat treatment temperature and by using an electrolyte composed of sulfuric acid, oxalic acid, and aluminum sulphate. The maximum thickness and hardness of the film were 18.3 μm and 442 HV, respectively. The film was produced by heat treating the casting at 350 °C, then pulse-anodizing it for 120 min. The wear loss of the oxide film was minimal under reciprocating, linear abrasion tests which lasted 5000 cycles. To validate the process in a practical application, the oxide film also exhibited good wear resistance when applied in a motorcycle engine that used a continuously-variable transmission. In addition, the engine horsepower was not compromised.

中文翻译：

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使用热处理和脉冲阳极氧化提高无级变速器铝合金铸件的耐磨性

摘要 这项工作的目的是研究改进的阳极氧化工艺是否可以成功地应用于 ADC14 铝合金铸件，以减少其在无级变速器部件中的磨损。氧化膜是在合金热处理后通过脉冲阳极氧化形成的。通过调节热处理温度和使用由硫酸、草酸和硫酸铝组成的电解液来增加氧化膜的厚度和硬度。薄膜的最大厚度和硬度分别为 18.3 μm 和 442 HV。该薄膜是通过在 350 °C 下热处理铸件，然后对其进行脉冲阳极氧化 120 分钟来生产的。在持续 5000 次循环的往复线性磨损试验中，氧化膜的磨损损失最小。为了在实际应用中验证该过程，当应用于使用无级变速器的摩托车发动机时，氧化膜也表现出良好的耐磨性。此外，发动机马力也没有受到影响。