Electroplating; Process of Plating/Depositing One Metal onto the Other through Hydrolysis

Electroplating

 

Electroplating is the process of plating a metal onto the other by hydrolysis to prevent corrosion of metal or for decorative purposes. Electroplating is also known as electrodeposition. The process involves depositing material using an electric current. This process results in a thin layer of metal being deposited onto the surface of a workpiece called substrate. Electroplating creates a protective barrier to reduce friction and prevent tarnishing of a surface as well as protecting the surfaces from wear and tear by applying a thin, durable metal coating.

Electroplating is a process that uses metals to improve the properties of objects. It can improve a variety of features, including resistance to rust and corrosion, lubricity, reflectivity, and electrical conductivity. It also improves the adhesion of materials, as well as improve strength and durability. It is used by artists, engineers, and manufacturers in a variety of applications. The process involves placing an anode (metal to be plated) and cathode (object to be plated) in an electrolyte solution or chemical bath. The anode is then exposed to an external supply of direct current.

When the circuit is activated, the dissolved metal ions from the anode are reduced at the cathode to form a coating of the plated metal. This can occur in a series of steps that take place inside an electrolytic cell. The cells are made up of a negative electrode, a positive electrode, and electrolyte solution that contains one or more metal salts to facilitate flow of electricity. The plating process can be used to coat a variety of materials, but the most common are nickel, copper, and zinc. These metals are known for their hardness, tensile strength, and corrosion-resistance.

There are also specific types of electroplating such as copper plating, silver plating, and chromium plating. Nickel is the most common electroplated material. It's used in a multi-layered process, to increase wear and corrosion resistance. With heat treatment, this wear resistance can be improved even more. Electroplating is also used to change the physical properties of object, such as hardness, resistance, brittleness, conductivity, and luster. It can also be used to give objects increased wear resistance, corrosion protection, and aesthetic appeal, as well as increased thickness.

Electroplating in India began after independence. In the early sixties, the plating was done using a dull nickel. Research estimates that in the 1970s, the size of the electroplating industry was around 100 million, with the first semi-automatic plant established in Mumbai.

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