What effect does sodium hydroxide have on the plating solution in our production process using alkaline zinc plating additives?
Iron impurities are very common in baths using acid zinc plating brighteners and are the most likely to cause failure.Usually, the accumulation of iron impurities is caused by the incomplete cleaning of iron parts after pickling, the workpieces falling into the galvanizing tank and not being pulled out in time to make them too corroded, and the use of some chemical raw materials that are not pure.So how should iron impurities be removed?
In the production process of using nickel plating brightener, the plating solution is weakly acidic,In addition to the deposition of the nickel layer, the workpiece of the cathode also has a small amount of hydrogen precipitation during nickel plating.The precipitation of hydrogen will affect the concentration of hydrogen ions in the plating solution, and will also affect the pH value of the plating solution.Therefore, the control of the pH value of the plating solution is an important factor affecting the quality of the coating
In the production process of using bright acid tin plating solution, sometimes the coating at the corners of the workpiece is scorched. What is the reason?
In the production process of using acid zinc plating brightener, sometimes such a phenomenon occurs: the current is not adjusted very much, and the coating is easy to burn. What should I do about this phenomenon?
When using galvanized trivalent chromium color passivator to produce, what should I do if the color of the workpiece film is uneven and mottled?