Getting To Know The Basic Steps In A Chrome Plating Process

Chrome plating process is the term used to denote the technique utilized in order to electroplate a thin layer of chromium on the surface of a metallic object. Experts have noted that chrome plating can give a lot of advantages such as ease in cleaning, anti-corrosion properties, increased surface hardness and can yield a shiny outlook for the object. If one is confused as to how chrome plated objects differentiate from polished surfaces, one can take note of the simple indicative factors: chrome plated items appear bluer compared to other items and is a lot more reflective (like a mirror-reflection).

Where To Apply Chrome Plating

Chrome plating can be applied to different settings depending on the type of project one desires to have. Hard chrome plating is also referred as industrial or engineered chroming which aims to increase wear and tear resistance of an object, oil retention, can effectively reduce friction and increase the overall durability. This is termed as hard chrome plating due to its thicker appearance comared to decorative plating treatment. It also won't break off easily.

Different applications that can take advantage from hard chrome plating include hydraulic rods, rollers, moldings, thread guides, various piston rings and even automobile wheels. This process is usually done on hardened steel and can give a shine, metallic outlook. Hexavalent chromium baths and Trivalent chromium baths are two types one can choose for a hard chrome plating project.  

Decorative chrome plating on the other hand is also referred to as nickel chrome plating. This term is used due to the fact that the process can sometimes involve electroplating of nickel and copper prior to thinly plating the surface with chromium. It should be noted that nickel can adds a smooth and non-mirror like appearance to the surface. Adding chrome alongside with nickel can add a bluish tint and will also prevent the nickel from rust and tarnishing. This advantage can effectively halt or prevent scratches and other signs of corrosion.  There is also the term "Black chrome plating" which appears as a smoky grey or black-like finish.

The Process Involved

The chrome plating process involves inspection of the object and followed by cleaning and polishing. Bugging and acid dipping can be optional depending on the depth of dirt or grime that needs to be removed.  Zincating is also an optional step for objects that contain aluminum surfaces. Copper plating is the last step.  If the client desired to add reflectivity, the step is succeeded by buffing with copper for a mirror-like and smooth finish. Each step is interspaced by acid dipping and rinsing. Plating with copper and followed by 2-3 kinds of nickel is done first before actually plating the object entirely with chrome.

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