正交实验法优化铝合金阳极氧化工艺

Optimizing aluminium alloy anodization process with orthogonal test

介绍了铝合金阳极氧化的生产工艺流程,通过正交实验优化了铝合金阳极氧化工艺和封孔条件,结果表明有利于阳极氧化膜厚度增加的最佳工艺为:氧化温度为23～25℃、电流密度为1 6A/dm2、氧化时间为35min、封孔温度为25℃、封孔时间为20min;有利于封孔质量的最佳工艺为:氧化温度为25℃、电流密度为1 3A/dm2、氧化时间为25min、封孔温度为30～40℃、封孔时间为20min。本实验可以为铝合金阳极氧化生产实践提供一种可行的研究方法和实验依据。

<Abstrcat> The production process flows of aluminium alloy were introduced. Aluminium alloy anodization process and sealing conditions were optimized with orthogonal experiments. The results show that the optimized process which is in favor of increasing anode oxidation film thickness is as follows: anodizing temperature of 23～25 ℃, current density of 1.6 A/dm^2, anodized time of 35 min, sealing temperature of 25 ℃ and sealing time of 20 min. And the optimized sealing conditions under which sealing quality is improved are as follows: anodizing temperature of 25 ℃, current density of 1.3 A/dm^2, anodizing time of 25 min, sealing temperature of 30～40 ℃ and sealing time of 20 min. The tests can provide a kind of feasible research method and experiment bases for aluminium alloy anodization production.