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| Influencing Factors and Improvement of Electroplating Zinc Coating Paintability |
| Received:April 19, 2017 Revised:June 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2017.06.016 |
| KeyWord:electrodeposition paintability composite coating Zn-SiO2 phosphating |
| Author | Institution |
| LI Yong |
1.Qingdao Marine Corrosion Institute, Central Iron and Steel Research Institute, Qingdao , China; 2.Qingdao NCS Testing & Corrosion Protection Technology Co., Ltd, Qingdao , China |
| DING Guo-qing |
1.Qingdao Marine Corrosion Institute, Central Iron and Steel Research Institute, Qingdao , China; 2.Qingdao NCS Testing & Corrosion Protection Technology Co., Ltd, Qingdao , China |
| CHEN Xiao-ping |
Division of Engineering Steel, Central Iron and Steel Research Institute, Beijing , China |
| WANG Xiang-dong |
Division of Engineering Steel, Central Iron and Steel Research Institute, Beijing , China |
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| Abstract: |
| This paper analyzed the reasons leading to poor performance of coating adhesive from the mechanism of coating interface, including wetting, adsorption, diffusion and chemical reactions. And aiming at the characteristics of coating and organic coatings, some methods for improving the paintability of galvanized coatings were introduced from aspects of coating structure and coating surface treatment. Phosphating treatment is the most mature and most applied method, which could not only improve the adhesion of coatings, but also improve the protective performance of the substrate. |
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