材料期刊网

目前，镀锌仍然是钢铁产品、制品防腐的主要技术。在此介绍了热浸镀锌、机械镀锌和电镀锌等镀锌防腐工艺的机理、工艺流程及特点。近年来，由于环境保护法规的加强，传统的电镀锌和热浸镀锌因工艺过程中会产生一定程度的污染，在许多国家和地区已受到严格的限制。因而，钢铁材料的表面处理工艺正面临着一场革命，向低能耗、无污染、高效率、高质量及绿色生产的方向发展。机械镀锌是表面处理界正在大力推进的清洁生产技术之一，当前利用该工艺生产的产品已在国际市场流行，也已被国内许多企业认可，逐渐成为国内五金件表面处理的一种通用技术。

At present，galvanizing is still the main anticorrosion technology for steel and iron products.The mechanism,technical process and the characteristics of hotdip galvanization,mechanical plating and electroplating with zinc are introduced.In recent years, because environmental protection laws and regulations have been strengthening，the application of technological process of traditional electroplating and hotdip galvanizing has been limited in many countries due to pollution problem.Thus, the surface treatment of steel and iron parts is facing an revolution for low energy consumption, low pollution，high efficiency, high quality and green procese.The mechanical plating is one of the clean surface treatments，which is extended and popularized vigorously, in the world and in China,becoming one of the common hardware surface treatments gradually.