配位剂对低温镀铁的影响  

Influences of Complexing Agent on Low-Temperature Iron Plating Process

作　　者：陈红辉 秦锋 陈亚超 沈小青[4] 

机构地区：[1]湖南省恩红科技有限责任公司,湖南常德415001 [2]中国南车株洲电力机车有限公司技术中心,湖南株洲412001 [3]郑州磨料磨具磨削研究所,河南郑州450001 [4]先进储能材料国家工程研究中心,湖南长沙410205

出　　处：《电镀与环保》2015年第5期4-6,共3页Electroplating & Pollution Control

基　　金：常德市科技计划项目(No.2014JF02)

摘　　要：通过研究不同配位剂对硫酸亚铁低温镀铁的影响,提出了一种配位剂复配工艺.以柠檬酸钠为主配位剂,以氨水为次配位剂,在pH值为1.0～5.5的弱酸性条件下能保持Fe2＋不被氧化成Fe3＋,有效提升了硫酸亚铁溶液体系的稳定性,并降低了镀层的氢脆缺陷.A process for complexants compounding was put forward through investigating the influences of different complexants on low-temperature iron plating in ferrous sulfate solution system. Under weak acid conditions with the pH value of about 1.0～5.5, and selecting sodium citrate and ammonia as main eomplexing agent and the second complexing agent respectively, oxidation reaction of Fe2＋ to form Fea＋ cannot occurred. Moreover, the stability of ferrous sulfate solution system was improved, and the hydrogen embrittlement defect was reduced.

关 键 词：低温镀铁 配位剂 硫酸亚铁 稳定性 

分 类 号：TQ153[化学工程—电化学工业]