Study chromium-free passivation coating on hot-dip galvanized steel sheet

被引：0
作者：
Xu Zhefeng [1 ,2 ]
Liu Shan [3 ]
Gan Guoyou [1 ]
Yi Jianhong [1 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
[2] PanGang Grp Res Inst Co Ltd, State Key Lab Vanadium & Titanium Resources Compr, Panzhihua 617000, Sichuan, Peoples R China
[3] Panzhihua Univ, Dept Biol & Chem Engn, Panzhihua 617000, Peoples R China
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2015年 / 9卷 / 1-2期
关键词：
Hot-dip Galvanized Steel sheet; Anti-corrosion property; Environmentally protective coating; ZINC;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The chromic acid is often used on the metal surface treatment, but hexavalent chromium was considered as a carcinogen. In order to develop environmentally-friendly coating to replace chromating coating, A Tannic Acid-H2TiF6/KH792 silane coupling agent composite coating was prepared on hot-dip galvanized steel sheet to investigate the effect of such as PMT, pH and film thickness. The results showed on the coating structure and the corrosion resistance that PMT and film thickness has greater effect on the corrosion resistance, and the optimum operation condition is at pH = 4 and in the PMT range of 60-80 degree centigrade. The shows excellent corrosion resistance, anti-fingerprint property and paint-ability.
引用
收藏
页码：260 / 265
页数：6
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