Cadmium is basically a byproduct of zinc and it is used as a form of protective coating which offers the biggest benefit of corrosion resistance. The most common chromates that are applied include black, olive, clear and yellow. One should keep in mind that cadmium is toxic; hence it should only be used on surfaces that are not intended for direct contact with food. It is mainly used in harsh environments and aerospace and is considered as a superior form of protection when it comes to aquatic applications. It offers a number of advantages include corrosion resistance in aquatic settings, exemplary lubricity, low levels of galvanic corrosion when in contact with aluminum substances, low level of electrical resistance, an excellent luster identical to silver plating and complete prevention of rust.
Methods of application
There are a number of ways in which it can be applied but one of the most common amongst them is electroplating. In the process of application, cadmium will go through electro deposition into the metal from a solution which is rich in cadmium salts and electrolytes. There are other types of solutions which produce results lacking in covering power and throwing brightness. Other methods of cadmium plating make use of mechanical energy in order to set down the coatings and components. It is best suited for fasteners and clips which are small enough to undergo plating within a barrel. The last method is plating through vacuum deposition where the cadmium solution is heated in a vacuum until vaporization has been achieved and this is followed by the condensation of the atoms which form a thin line of coating.
The process of plating is carried out using the latest technology and tools. It improves the aesthetic appeal of the product and reduces any chances of corrosion. This, in turn, increases the longevity of the product and makes it highly durable. It is important for manufacturers to use the right method of application based on the type and size of the product. The method should be easy to apply and should be highly effective on the metal. Cadmium plating has been used for a long time across aerospace and defense industries in order to increase the longevity and quality of the products. It is also used in small and medium scale industries that manufacture clips and fasteners. The plating leaves a thin line of coating which leaves a good finish and enhances the look and feel of the product which attracts consumers to purchase and use them.
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