In the production process of using decorative chrome plating additives, we often encounter gray and dull chrome plating and the phenomenon of blooming.However, after the chrome plating layer is removed, the surface of the nickel plating layer below is normal. What is the reason for this?
Some customers reported that in the production process of using alkaline galvanizing brightener, the appearance of the coating after the workpiece is galvanized is good, but the coating has foaming phenomenon after baking, what is the reason for this?
A few days ago, a friend had such a problem in the process of using nickel sulfamate additives:The concentration of nickel sulfamate in the bath was 700 ml/L, and the pH of the bath was 4.3 at the beginning.After an hour, the pH value dropped to 3.7, and then stabilized at about 3.7. The pH value of the plating solution was adjusted with basic nickel carbonate but did not rise.What is the reason for this?
In the copper plating process using acid copper brightener, because the composition of the plating solution is relatively simple and the plating solution is stable, no harmful gas is generated during the production process, and full-bright copper plating with good leveling performance can be obtained.What are the components of the acid copper plating solution?
When we use medium phosphorus electroless nickel plating solution to produce, after the workpiece is plated with electroless nickel coating, it will go through the process of cleaning and drying.Does the workpiece need to be passivated after electroless nickel plating?
When we use nickel plating additives to produce, there are several reasons for the poor adhesion of the nickel plating layer of the workpiece, and the reasons are different.So how to judge the reasons for the poor adhesion in different parts of the coating?
