无氰电刷镀银镀层性能研究  

Study on Properties of Cyanide-Free Silver Coating by Electro-Brush Plating

作　　者：索帅 李文 杜宝帅 张忠文 李新梅 步衍江 张鲁宁 SUO Shuai;LI Wen;DU Baoshuai;ZHANG Zhongwen;LI Xinmei;BU Yanjiang;ZHANG Luning(Shandong Electric Power Industry Boiler&Pressure Vessel Inspection Center Co.Ltd.,Jinan 250002,China;State Grid Shandong Electric Power Research Institute,Jinan 250002,China)

机构地区：[1]山东电力工业锅炉压力容器检验中心有限公司,山东济南250002 [2]国网山东省电力公司电力科学研究院,山东济南250002

出　　处：《电镀与精饰》2022年第2期7-11,共5页Plating & Finishing

摘　　要：分别采用以丁二酰亚胺和亚氨基二磺酸铵为主配位剂的两种无氰镀银液,通过电刷镀工艺成功在紫铜基体表面制备出了镀银层。通过X射线光谱法、SEM、EDS、显微硬度及摩擦磨损实验等分析方法,对镀银层外观、厚度、微观形貌、硬度以及摩擦磨损性能等方面进行了分析及比较。结果表明:两种体系制备出的镀银层外观均平整光亮,厚度及硬度均满足Q/GDW 11718.1-2017标准中的要求,磨损机制均为黏着磨损及磨粒磨损,其中丁二酰亚胺体系镀液制备出的镀银层性能要优于亚氨基二磺酸铵体系,其微观表面更加平整,颗粒排列更加致密,镀层厚度均值达28.24μm,硬度均值达135.4 HV,磨损速率为0.1375 mg/m。Silver coating was successfully prepared on copper substrates by electro-brush plating with succinimide and ammonium iminodisulfonate as main complex agents respectively.The appearance,thickness,micro morphology,hardness,friction and wear properties of the silver coatings were ana‐lyzed and compared by means of X-ray spectroscopy,SEM,EDS,microhardness test,friction and wear test.The results showed that the silver coating prepared by the two systems had smooth and bright appearance,the thickness and hardness met the requirements of Q/GDW11718.1-2017 standard,and the wear mechanism was adhesive wear and abrasive wear.By comparison,the performance of silver plating layer prepared by succinimide system was better than that of ammonium iminodisulfonate system.The micro surface was smoother,the particle arrangement was more compact,the average thickness of the coating was 28.24μm,the average hardness was 135.4 HV,and the wear rate was 0.1375 mg/m.

关 键 词：丁二酰亚胺 亚氨基二磺酸铵 电刷镀银 外观 厚度 硬度 摩擦磨损性能 

分 类 号：TQ153.16[化学工程—电化学工业]