Research Status of Chromium-Free Chemical Conversion of Aluminum Alloys in China
The research status of chromium-free chemical conversion of aluminum alloys in China was reviewed.The corrosion resistance of conversion coating prepared by inorganic salt(e.g.,zirconium,titanium,vanadium and rare earth salt)chemical conversion,organic acid,organic silane conversion and organic-inorganic composite conversion,as well as sol gel method and coating method were mainly introduced.The importance and effective process of post conversion and sealing treatment were briefly introduced.Finally,the existing research problems were summarized and the future research work on chromium-free chemical conversion of aluminum alloys was analyzed.
万方数据
维普
