6063铝合金阳极氧化型材的色差缺陷浅析

Analysis of color difference defects of 6063 aluminum alloy anodized profile

为了解决6063铝合金阳极氧化和电解着色后出现色差缺陷,根据色差产生机理,结合现场生产记录和监控回放,跟踪调查色差产生的原因,最终通过对合金成分中Fe、Mn元素含量的控制以及着色电压等工艺参数的调整,得出消除阳极氧化型材电解着色后出现色差问题的最优措施。铝棒合金成分中Fe元素含量控制在≤0.30%,Mn元素含量控制在≤0.025%,型材氧化后将会得到较好的砂面银白色和光面古铜色表面质量;从生产成本和颜色的稳定性来看,最佳的电解着色电压应该控制在15~16 V之间。

In order to solve the color difference defects after anodizing and electrolytic coloring of 6063 aluminum alloy,according to the color difference generation mechanism,combined with on-site production records and monitoring playback,the causes of the col⁃or difference are followed up.Finally,through the control of iron and manganese content in alloy composition and the adjustment of coloring voltage and other process parameters,the optimal measures to eliminate the color difference after electrolytic coloring of anod⁃ized profiles are obtained.When the content of iron in aluminum rod alloy is controlled to be≤0.30%,and the content of manganese is controlled to be≤0.025%,the good quality for silver white and smooth bronze surfaces of profiles will be obtained after oxida⁃tion.In terms of production cost and color stability,the best electrolytic coloring voltage should be controlled between 15~16v.and etc.