Get To Know More About Application Of Electroless Nickel Coating MI

الخميس، 25 يناير 2018

By Virginia Jackson


Unlike electroplating, electroless nickel coating does not use external electrical power to deposit a layer of this element on other metallic objects. Instead, it uses a chemical reaction that is auto-catalytic. It is done in the process of a reducing agent such as hydrated sodium hypophosphite or any other similar agent. It is a non-galvanic plating method that deposits a thick and uniform layer. This layer offers resistivity to corrosion and wears, chemical resistivity and lubricity. It is good to know more about Electroless nickel coating MI so as to provide durability for equipment.

There are three types of this form of plating. The first one is the low-phosphorous treatment deposits a hardness of sixty using the Rockwell scale. It offers great protection from corrosion by alkaline solutions. Medium phosphorus process results in alloys that are of moderate levels of phosphorus. It offers a high deposit rate and a decorative component. It is the most used type. The high phosphorus treatment is ideal for industries as it is highly resistant to corrosion from acidic environments.

This process is done through an autocatalytic chemical reaction that ensures the continuation of the process since the product made still serves as a catalyst. The tool to be plate is immersed in an aqueous solution of dissolved nickel salt and a reducing agent such as sodium hypophosphite. This will cause a reaction that will deposit the element around the tool. The element deposited still catalyzes the reaction. There are no extra equipment or electrical power required.

Before this process is carried out, the tool to be plated must be thoroughly cleaned using different chemicals. This is done in a process called the pretreatment process. If it is not done, the plating process may be ineffective and result in poor plating. After pretreatment, the material is rinsed using water which removes the chemicals used in case they have adhered to the surface.

This form of plating has numerous applications especially in the field of engineering. It has been used over the years to reduce the corrosion of metal elements and improve general hardness. There are many metal tools that plate including kitchen objects, door knobs, bathroom fixtures, rotors and drive shafts among others.

Its use in the automotive industry is used to protect vehicles from wear and corrosion. There should be compliance to the process types that are approved which requires that the process used is free from heavy metal stabilizers. It also uses the coating of hard discs.

There are many advantages that come with using this process. It does not use electric power thus saving on energy costs. The coat achieved is also uniform and thick. It also offers bright or semi-bright finishing on the product making it a decorative element. However, the chemicals used need to be continually replenished and the cost of treating waste is high.

The manufacturing industry has been greatly improved through the use of this plating. It has met the abilities required for many materials in terms of strength, durability and superior resistance to corrosion. Its implementation has improved efficiency and performance of industrial lubricant components and provides high-quality products.




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