热镀锌层无铬复合钝化处理研究的进展

为了科学地引导热镀锌层无铬复合钝化技术的快速发展,综述了国内外无铬复合钝化处理的发展历程和研究现状,阐述了复合钝化膜防护的特点,分析了钝化膜耐蚀性的影响因素并评价了其研究方法。

Advancement in Chromium-free Composite Conversion Coating on Hot-dip Zinc Coating

To guide the development of composite chromium-free conversion coating technology in hot-dip galvanzing,the development path and research status of the domestic and foreign composite chromium-free conversion coating on hot-dip zinc coating are summaried,the protective characteristics of composite chromium-free conversion coating are described,the affecting factors of corrosion resistance are analysed,and the research methods are evaluated.