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