以氯化物为基础的熔盐中的电解镀铝

M. Paučírová, K. Matiašovský
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引用次数: 12

摘要

研究了氯化物熔盐中铁碱的电镀铝工艺。以AlCl3含量为76 ~ 80 wt.%, NaCl和KCl含量为20 ~ 24 wt.%,比例为1:1的三元AlCl3-NaCl- KCl为碱性电解质,效果最好。添加5 wt.%的NaI后,沉积的Al层质量得到进一步改善。在150 ~ 200°C的温度范围内,阴极电流密度高达7 a dm-2,获得了最好的结果。在这些条件下,铝以一种细晶、银亮和无孔层的形式沉积。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electrolytic aluminium-plating in fused salts based on chlorides

Electrolytic aluminium-plating of iron bases in fused salts based on chlorides was investigated. As base electrolytes, the ternary AlCl3-NaCl- KCl mixtures containing 76–80 wt.% AlCl3 and 20–24 wt.% of NaCl and KCl in the ratio of 1:1 were found to be the most effective. The quality of the deposited Al layer was further improved by an addition of 5 wt.% NaI. The best results were obtained in the temperature range 150–200°C with a cathodic current density of up to 7 A dm-2. Under these conditions, aluminum was deposited in the form of a fine-crystalline, silver-bright and non-porous layer.

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