The Electro Nickel Plating is also called the Nickel Electro deposition and has become a very popular process recently for various manufacturing applications. The process basically makes use of an electrical current in coating a conductive material, most especially those that are made of metal and with thin layers of nickel. Other metals that are utilized for electroplating are copper, stainless steel, zinc, as well as platinum.
Generally, the electroplating process helps to improve a wide range of characteristics that are not often present on the base material.
Benefits of Nickel Plating
The plating comes with several benefits and among these are the following.
• Improved ductility
• Improved hardness
• Increased resistance to corrosion
• Resistance to wear
• Superior strength
Nickel is popularly used for electroplating metals since it offers superior ductility, hardness, and great corrosion resistance. The process of electro Nickel Plating can also help to improve the brightness of a product, as well as its external appearance. Various plating chemicals are being incorporated into the process in order to deliver a semi bright to fully bright cosmetic effects, as well as pearl, matte and satin finishes.
How Electro Nickel Plating Works
In order to properly transfer Nickel to the surface, a negative charge should be applied against the base material. To make this possible, the product will have to be attached to the rectifier and other power supply with the use of a conductive wire. As soon as it is attached, a nickel rod will be connected in the same manner to the positive side of the power source.
After all the initial steps are completed, the base material will then be submerged to a solution that consists of salt and chemical makeup and includes the electroplating metal. With the electro Nickel Plating, the solution comprises of nickel chloride salt and water. Because of the electric current found on the solution, the nickel chloride salt will dissociate with the negative chloride ions as well as positive nickel cat ions. The negative charge of the base of the metal will then attractive that of the positive nickel ions and the positive charge of the nickel rod will attract the negative chloride anions. As a result of this chemical reaction, the nickel that is on the rod will oxidize and dissolve to a solution. From this, the oxidized nickel will be attracted to the base material and will end up coating the product.
Current Density of Electro Nickel Plating Process
The process of Electro Nickel Plating will involve various density levels. The current density will directly determine the deposition rate of the Nickel towards the base material, more especially because the higher current density, then the quicker the deposition rate will turn out. The current density will affect the plating adherence as well as the quality of plating where higher current density levels deliver poorer result. As such, the optimal level of the current density will depend on the base material type as well as the specific type of the result that the final product will require.