铁基电镀锌层的无铬钝化处理研究

›› 2011, Vol. 24 ›› Issue (2): 115-.

铁基电镀锌层的无铬钝化处理研究

云广平,郭万振

(西安电子科技大学理学院,陕西西安 710071)

出版日期:2011-02-15 发布日期:2011-02-23
作者简介:云广平(1985-),男,硕士研究生。研究方向:应用电化学及材料表面改性与界面化学。

Study on Fe-based Electro-Galvanized Layer of Chromium-Free Passivation

YUN Guang-Ping, GUO Wan-Zhen

(School of Science,Xidian University,Xi'an 710071,China)

Online:2011-02-15 Published:2011-02-23

摘要/Abstract

摘要：

研究了镀锌板无铬钝化工艺技术,用以取代传统的高毒性铬酸盐钝化处理。以钼酸盐为主要成分,对镀锌钢板钝化工艺技术进行了系统的研究。讨论了钝化温度、钝化处理时间、钝化液pH值等对钝化成膜及膜层耐蚀性的影响。通过醋酸铅点滴试验,电化学测试等方法对无铬钝化样品的耐蚀性进行了研究。实验结果表明,该无铬钝化膜具有较好的耐腐蚀性,但与铬酸盐还有一定的差距。

关键词: 镀锌板, 钼酸盐, 无铬钝化

Abstract:

In this paper,to replace the traditional highly toxic chromate passivation,I researched the chromium-free passivation technology of the galvanized sheet,and choosed molybdate as the main component to study the galvanized steel passivation technology systematically.I discussed the temperature of passivation,the time of passivation,the pH value of passivation to study the impact of the passive film and corrosion resistance.The corrosion resistance of samples with Chromium-free passivation was studied using tests of lead acetate,electrochemical testing.Experimental results show that the chromium-free passive film has a good corrosion resistance,but there is still a certain gap with the chromate.

Key words: galvanized steel;molybdate;chromate-free passivation

中图分类号:

TQ153.1+5

云广平, 郭万振. 铁基电镀锌层的无铬钝化处理研究[J]. , 2011, 24(2): 115-.

YUN Guang-Ping, GUO Wan-Zhen. Study on Fe-based Electro-Galvanized Layer of Chromium-Free Passivation[J]. , 2011, 24(2): 115-.