锰系黑色磷化膜的制备及性能研究  

Preparation and Properties Study of Manganese Series Black Phosphating Film

作　　者：里新 郝建军[1] 李淑梅[1] 

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110159

出　　处：《电镀与环保》2015年第2期24-26,共3页Electroplating & Pollution Control

摘　　要：通过单因素试验,研究了马日夫盐、硝酸锰、硝酸镍的质量浓度对磷化膜性能的影响。确定了三者最佳的质量浓度为：马日夫盐40～50g/L,硝酸镍5～6g/L,硝酸锰15g/L。经XRD分析,磷化膜的主要成分为Mn3（PO4）2、（MnFe）2PO4（OH）和Mn3（PO4）2·1.5H2O。膜层表面呈黑色,且结晶均匀、细致。经电化学测试,其耐蚀性良好,适用于钢铁涂装前处理。Influences of mass concentration of manganous dihydrogen phosphate,manganous nitrate and nickel nitrate on the properties of phosphating film were investigated using singlefactor experimental method.The optimum compositions were determined as follows：manganous dihydrogen phosphate 40～50g/L,nickel nitrate 5～6g/L,manganous nitrate 15g/L.Surface observation and XRD analysis showed that the phosphating film featuring black morphology and compact texture,and Mn3（PO4）2,（MnFe）2PO4（OH）and Mn3（PO4）2·1.5H2 O were major ingredients.Electrochemical testing indicated that the phosphating present excellent corrosion resistance,and was suitable for pretreatment of iron and steel coating.

关 键 词：锰系黑色磷化 低碳钢 耐蚀性 磷化膜 

分 类 号：TG174[金属学及工艺—金属表面处理]