Chrome Plating - Adornment Of Objects and Protection From Corrosion

Just why are some metals coated with chromium? That is something I had always wondered and I guessed it had something to do with corrosion and rust protection. But why not make the item out of solid chromium to begin with?

For starters, some metals are coated with chromium to make them look more attractive. Chromium is shiny and sparkly – it is a good reflector and is bright. The metal is silver in appearance and can enhance all types of objects that it coats. And , sure, it certainly does protect from corrosion and tarnish.

It was discovered in 1798 and is a non-corrosive material which is very strong and resistant to heat. It is ideal for coating other metals in particular steel.

The coating process is done by electroplating – immersing the object in an electrolyte solution and passing an electric current through it. This is the only way it is done – there is no other reliable method and all other descriptions (such as "Chrome Dipping" and "Chroming") refer to electroplating methods. The electrolyte contains chromium in a different form but the chromium is displaced onto the desired object during the electroplating process.

You will see chromium plating in lots of different places and in particular on appliances around the home (for example, taps) and on automobile and motorcycle parts. Other places you might find it commonly is in the tool shed – on tools of all kinds, and on electrical equipment. Virtually every object that is chromium plated is enhanced by its presence and can be polished up to a pleasing shine.

By Eric Hartwell | Posted on 2007-06-21 00:37:05

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Definition:

Chrome plating is a finishing treatment utilizing the electrolytic deposition of chromium. The most common form of chrome plating is the thin, decorative bright chrome, which is typically a 10 µm layer over a underlying nickel plate. It imparts a mirror-like finish to items such as metal furniture frames and automotive trim.

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