[Surface treatment] Chemical nickel properties

The electroless nickel process is quite common in Taiwan. It mainly coats raw materials with a nickel layer so that the original workpieces can have high hardness, high wear resistance, and good corrosion resistance. It is suitable for copper, iron, Aluminum, stainless steel, powder metallurgy, zinc alloy and other metal materials. After treatment, the film thickness is uniform and even the workpiece can appear shiny. In order to further improve the corrosion resistance of the nickel layer, some manufacturers will undergo a passivation treatment to enhance the corrosion resistance.

Chemical nickel phosphorus content characteristics 

The existence of chemical nickel pre-treatment is very important, because a lot of dirt and cutting oil will be attached during the previous processing. If it is not completely washed to make the surface clean, the chemical nickel will not be completely covered in the material, and Peeling will occur; therefore, thermal degreasing, electrolytic degreasing, ultrasonic degreasing and other methods are usually used for pre-treatment. In addition to cleaning the surface of the plated metal, the dirt in the holes can also be removed.

In addition, in chemical nickel treatment, the conditions and deposition speed of the chemical solution will also affect the size of the crystal grains in the nickel layer, so stable management is very important; the most important thing is that before chemical nickel treatment, it is necessary to follow the case accepted Only by selecting the appropriate liquid solution according to the needs of the client can the requirements of the client be met.