热镀锌钢板采用铬酸盐处理是可抑制生成白锈的廉价方法，已广泛被采用。在家电用表面处理钢板方面，作为提高防锈技术和提高其功能手段也被广泛应用。但由于铬酸盐处理液含有6价铬，对环境有污染。近年来，对保护地球环境提出了更高的要求，最近欧洲关于“废电子机器（WEEE）欧 Chromate treatment of hot dip galvanized steel sheets is an inexpensive method of inhibiting the formation of white rust and has been widely adopted. In the surface treatment of household appliances with steel, as a means of improving anti-rust technology and improve its function has also been widely used. However, the chromate treatment solution contains hexavalent chromium and is polluting the environment. In recent years, the protection of the Earth’s environment put forward higher requirements, the recent European "Waste Electrical and Electronic Equipment (WEEE) Europe