XIAO Ge,YANG Xiaobo,XIANG Keyou,et al.New Development in Phosphating Process of Electro Galvanized and Hot Dip Galvanized Steel Sheet[J].Plating & Finishing,2021,(9):31-38.[doi:10.3969/j.issn.1001-3849.2021.09.006]
电镀锌及热浸镀锌钢板磷化工艺新进展
- Title:
- New Development in Phosphating Process of Electro Galvanized and Hot Dip Galvanized Steel Sheet
- Keywords:
- electro-galvanized sheet hot-dip galvanized sheet phosphating process corrosion resistance
- 文献标志码:
- A
- 摘要:
- 碳钢零件上进行电镀锌或者热浸镀锌是为了提高其耐腐蚀性能，而且在严酷的服役环境条件下，还需要在镀锌钢板表面进行磷化处理，然后再进行电泳涂漆等表面保护工序，磷化的目的一方面是可以提升与后续电泳漆膜的结合力，另外一方面是进一步提升这种表面处理零件在严酷环境条件下的防腐蚀性能。本文分别介绍了汽车钢板常用的两种镀锌层（电镀锌和热浸镀锌）的微观相结构特点，获得的磷化膜层的特点以及磷化工艺参数的影响等，分析探讨了这两类镀锌钢板（包括钢板上的锌合金镀层）的磷化工艺发展的新趋势。
- Abstract:
- The purpose of galvanizing or hot-dip galvanizing on carbon steel parts is to improve their corrosion resistance. In addition, under severe service conditions, phosphating treatment is also required on the surface of galvanized steel sheet, followed by electrophoretic painting and other surface protection processes. On the one hand, the purpose of phosphating is to enhance the adhesion with subsequent electrophoretic paint film. On the other hand, it is to further improve the corrosion resistance of the surface treated parts under severe environmental conditions. In this paper, the micro phase structure characteristics of two kinds of zinc coating （electro galvanizing and hot-dip galvanizing） commonly used in automobile steel sheet, the characteristics of obtained phosphating coating and the influence of phosphating process parameters are introduced.And the new development trend of phosphating process of these two kinds of zinc coating （including zinc alloy coating on steel sheet） are analyzed and discussed.
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备注/Memo
收稿日期： 2021-04-20；修回日期： 2021-05-26
作者简介： 肖革（1966—），男，本科，总监，email：xiaoge@mstzh.com
通信作者： 朱立群，email：zhulq@buaa.edu.cn
基金项目： 上海机器人产业研发与转化功能平台2020年度开放课题