Mn^(2+)对镀锌板磷化的影响  

Effect of Mn^(2+) on Phosphating of Galvanized Steel

作　　者：张圣麟[1] 张小麟[2] 马强[1] 李维维[1] 

机构地区：[1]河南师范大学化学与环境科学学院,新乡453007 [2]河南工业大学化学化工学院,郑州450052

出　　处：《腐蚀与防护》2010年第6期466-468,共3页Corrosion & Protection

基　　金：河南省自然科学研究项目(2008A150016);新乡市科技发展计划(07G058)

摘　　要：通过开路电位-时间曲线和扫描电镜(SEM)的方法研究了镀锌板在含有不同浓度Mn2+磷化液中的磷化成膜过程。结果表明,在磷化液中添加Mn2+,磷化初始电位降低,有利于磷化膜的形成;当Mn(NO3)2含量为0.6g/L时,所生成的磷化膜结晶细化,均匀致密。The phosphating process of galvanized steel in phosphating solution with different contents of Mn^2＋ was investigated by means of open circuit potential-time curves and scanning electron microscopy（SEM）.The results showed that Mn^2＋ in phosphating solution could decrease the initial potential of phosphating and promote the formation of phosphating coating.When the content of Mn（NO3）2 in phosphating solution was 0.6 g/L,the crystals of the phosphate were fine and the phosphating coating formed was uniform and compact.

关 键 词：磷化 镀锌板 MN^2+ 结晶 

分 类 号：TG178[金属学及工艺—金属表面处理]