制氟电解槽镍铜合金电镀工艺及其性能研究  

Study on the Electroplating Process and Performance of Nickel-Copper Alloy in Fluorine Electrolyzer

作　　者：张春江 胡豪 杨亮 林修洲 窦宝捷 程科利 张颖君 高秀磊 方治文 Zhang Chunjiang;Hu Hao;Yang Liang;Lin Xiuzhou;Dou Baojie;Cheng Keli;Zhang Yingjun;Gao Xiulei;Fang Zhiwen(College of Materials Science and Engineering,Sichuan University of Science&Engineering,Zigong 643000,China;Key Laboratory for Corrosion and Protection of Materials of Sichuan Province,Zigong 643000,China;Zhongshan Photoelectric Material Co.,Ltd.,Zibo 255138,China)

机构地区：[1]四川轻化工大学材料科学与工程学院,四川自贡643000 [2]材料腐蚀与防护四川省重点实验室,四川自贡643000 [3]山东重山光电材料股份有限公司,山东淄博255138

出　　处：《山东化工》2022年第7期14-18,共5页Shandong Chemical Industry

基　　金：国家自然科学基金(E51901146);四川省科技计划资助(2020JDRC0098,2021YFG0246);四川轻化工大学人才引进项目(2018RCL14)。

摘　　要：镍铜合金因具有一系列优异的性能而备受国内外学者的广泛关注与研究,尤其是其优异的耐氢氟酸和氟气腐蚀的能力,因此被广泛应用于氟化工行业中。本文以碳钢制氟电解槽腐蚀为研究背景,系统研究在碳钢表面电镀镍铜合金镀层的电镀工艺与实施方法,解决制氟电解槽的腐蚀性问题。本文采用直流电镀技术在Q235B碳钢表面制备了镍铜合金镀层,通过正交实验方法优化了镀液中硫酸铜含量、电流密度和电镀时间三种电镀工艺参数,通过电化学测试技术评定了正交实验结果,结果表明,当镀液中硫酸铜含量为6 g/L、电流密度为3 A/dm^(2)、电镀时间为60 min时,制备的镀层耐蚀性能最为优异。镀液中硫酸铜的含量对镀层的耐蚀性能影响最大。Nickel-copper alloy has been widely concerned and studied by scholars at home and abroad because of its excellent properties,especially its excellent resistance to hydrofluoric acid and fluorine gas corrosion,so it is widely used in the fluorine chemical industry.This paper takes the corrosion of fluorine electrolyzer made of carbon steel as the research background,systematically studies the electroplating process and implementation method of electroplating nickel-copper alloy coating on the surface of carbon steel,and solves the corrosive problem of electrolyzer made of fluorine.In this paper,a nickel-copper alloy coating was prepared on the surface of Q235B carbon steel by using DC electroplating technology.The three electroplating process parameters of copper sulfate content,current density and electroplating time in the plating solution were optimized by orthogonal experiment method.The experimental results show that when the copper sulfate content in the plating solution is 6 g/L,the current density is 3 A/dm^(2),and the plating time is 60 min,the corrosion resistance of the prepared coating is the best.The content of copper sulfate in the plating solution has the greatest impact on the corrosion resistance of the coating.

关 键 词：电镀 镍铜合金 Q235B碳钢 电化学阻抗谱 

分 类 号：TQ153.2[化学工程—电化学工业]