文档介绍：铝及铝合金无铬表面处理技术研究进展
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铝及铝合金无铬外表处理技术研究进展
来源:电镀与涂饰(2021-05-28)     分类：[技术文摘]     关键字：
纪红*，朱祖芳    〔北京有色金属研究总院，北京 100088〕
摘  要：综述了铝及铝合金无 铬外表处理技术，包括锆钛类处理、硅烷处理、稀土转化膜、高锰酸盐转化膜、钴盐转化膜、锂盐转化膜、有机酸转化膜等。目前在实践中获得应用的有锆钛转化处理和硅烷处理，但尚无一种无铬处理工艺能够完全代替铬酸盐处理工艺。
关键词：铝及铝合金；外表处理；化学转化膜；耐蚀性能
中图分类号：TG178                                文献标志码：A
文章编号：1004 – 227X (2021) 06 – 0034 – 04
Research progress of chromate-free surface treatment technology on aluminum and its alloys//JI Hong*, ZHU Zu-fang
Abstract: Thechromate-freesurface treatment technologies foraluminum and its alloys including Zr/Ti treatment, silane treatment, rare earth conversion coatings, permanganate conversion coatings, cobalt salt conversion coatings, lithium salt conversion coatingsand organic acid conversion coatings werereviewed. The Zr/Ti treatment and silane treatment have beenused in practice. However,there is not a non-chromate conversion coating that can totally replace the chromate conversion coating.
Keywords: aluminum and itsalloy; surface treatment; chemical conversion coating; corrosion resistance
First-author’s address: Beijing General Res