Their electroforming process specifications, the properties and process characteristics of the obtained nickel layer are shown in the following table. Process specification, nickel layer performance and process characteristics of electroforming nickel Click here to view all news photos. No matter what electroforming solution is used, the nickel anode must be carefully selected in order to obtain a good nickel layer and prevent anode passivation. This is particularly important in sulfamate solutions containing less chloride. Electrolytic nickel block or sulfur-containing depolarized nickel block (S nickel) is generally used for titanium anode basket. Electrolytic nickel has high purity, less impurities and low price. The disadvantage is poor solubility, and the surface is easy to passivate when the chloride content in the solution is low. High temperature annealing can greatly improve the anodic dissolution performance. S nickel contains 0.0 1% ~ 0.04% sulfur. Its main advantage is high activity and can be used at high current density. The disadvantage is that sulfur in nickel block will produce sulfide residue, so pollution of electroforming solution should be prevented. Related reading: