不同工艺方法制备镍球阳极的组织及电化学溶解性能比较  

Comparison of organization and electrochemical dissolution properties of nickel ball anodes prepared by different process methods

作　　者：张清龙 毛海娜 赵长忠 柳建东 赵一杭 白辰兴 郭永年 王贵平 Zhang Qinglong;Mao Haina;Zhao Changzhong;Liu Jiandong;Zhao Yihang;Bai Chenxing;Guo Yongnian;Wang Guiping(Jinchang Nidu Mining Industry Co.,Ltd.,Jinchang 737100,China)

机构地区：[1]金昌镍都矿山实业有限公司,甘肃金昌737100

出　　处：《电镀与精饰》2024年第10期9-15,共7页Plating & Finishing

摘　　要：镍阳极的电化学溶解特性对电镀镍长期生产的工艺稳定性有着重要影响。研究表明,通过真空熔炼结合水平连铸法制成的镍球阳极相较于液压镦制法制备的镍球阳极,具有更优的组织结构,表现为晶粒更为均匀、杂质少且晶粒排列有序度更高。这一特点使得此类镍球阳极在瓦特镀镍液中展现出更好的溶解活性和均匀性,特别是在常规电流密度条件下,提升了阳极电流效率。此外,其溶解后的残渣形态紧实、颗粒大,易于过滤清除,这对于维持电镀镍生产工艺的长期稳定性具有积极意义。The electrochemical dissolution characteristics of nickel anodes have an important influence on the stability of long-term nickel electroplating production.In this paper,it is shown that the nickel ball anodes produced by vacuum melting combined with horizontal continuous casting have a better organizational structure than that of the hydraulic upsetting nickel ball anodes,which is characterized by more uniform grains,less impurities and higher grain order.This feature makes this type of nickel ball anodes show better dissolution activity and uniformity in Watt nickel-plating solution,especially under the condition of conventional current density,which improves the anode current efficiency.In addition,the dissolved residue has a compact and large particle size,which is easy to be removed by filtration,which is of positive significance for maintaining the long-term stability of the nickel electroplating production process.

关 键 词：电镀镍 镍球 电化学 

分 类 号：TG172.8[金属学及工艺—金属表面处理]