钝化pH值对于镀锡钢板综合性能的影响  

Effects of pH Value of Electrolytic Passivation on Overall Performance on theTinplating Steel

作　　者：陆伟星[1] 吴小红[1] 王鑫艳[1] 李萍[2] 张千峰[2] 

机构地区：[1]上海梅山钢铁股份有限公司技术中心,江苏南京210039 [2]安徽工业大学分子工程与应用化学研究所,安徽马鞍山243002

出　　处：《中国材料科技与设备》2015年第6期18-20,共3页Chinese Materials Science Technology & Equipment

基　　金：校企产学研联合科技攻关项目（MS2013019）

摘　　要：本文研究了钝化pH值对镀锡板表面综合性能的影响，采用化学方法分析不同钝化pH值下的镀锡板表面铬含量以及氢氧化铬、三氧化二铬的含量，采用电化学及涂装试验等方法，研究不同钝化pH值所得镀锡板的耐蚀性、抗硫性和附着力等性能。结果表明，不同pH值钝化的镀锡板表面氢氧化铬含量差异较大；在pH=4．4左右，钝化的镀锡板可得到较好的耐蚀性、抗硫性以及附着力等综合性能。Influence of pH value of electrolytic passivation to the sur/ace overall performance of tin plate. The total content of chromium and quantity of Cr （OH）s and Crs 03 of tin plate surface on different passivation pH value were determined by chemical analysis methods. The corrosion resistance, sulphur-resistance, adhesion force of tin plate by different passivation pH value were also studied by electrochemical analysis and coating test method. The results show that the quantity of Cr （OH）3 is different during passivating processes at different pH values. The better performance of corrosion resistance, sul- phur-resistance adhesion force can be insured at the pH value of passivation being ca. 4. 4.

关 键 词：镀锡板 钝化 PH值 耐蚀 抗硫 附着力 

分 类 号：TF762[冶金工程—钢铁冶金]