Chromium electroplating is a technique in which a thin layer of chromium is applied to a metal object. The chrome layer can be decorative, or provides corrosion protection, facilitating cleaning procedures or increases the surface hardness of the object.
What is chrome? Chromium is one of the 92 naturally occurring chemical elements. Chrome is a metal, but it is not useful as a solid, pure substance. Things are never made of solid chrome. Rather, when you hear that something is chrome, what is really meant is that there is a thin layer of chrome, a plating of chrome, on the object (the bulk of the object usually being steel, but sometimes brass or copper).
Decorative chrome is designed to be aesthetically pleasing and durable. Thicknesses range from 0.002 to 0.02 mils (0.05 to 0.5 µm), however they are usually between 0.005 and 0.01 mils (0.13 and 0.25 µm).
Chrome plating is more reflective (brighter), bluer (less pale, grayish, or yellowish), and more specular (the reflection is deeper, less distorted, more like a mirror) than other finishes. There are two different options for chroming “hard chromium” and “nickel-chrome plating.”
Decorative chrome plating is sometimes referred to as nickel-chrome plating, because it always involves the electroplating of nickel on the subject, prior to the application of chromium. Nickel coating provides a smooth, high resistance to corrosion and most of reflectivity. The chrome plating is generally very thin.
Chromium is used for presses for processing materials, synthetic resins, processing tools, measuring devices, various mechanical parts such as bearings and screw shaft, crank, cam shaft, spindle lathes, gaskets and piston rings, cylinders with grooved rollers and cylinder liners for internal combustion engines, rings, pins.
Material or product, which will be chrome plated must be clean and free of dirt, corrosion and other defilements. Chrome plating is offered on racks or drums. Treatments vary depending on the type of material and the requirements of our customers. At any galvanization process our clients are advised on the best treatment according to their requirements.
All workpieces – items are first cleaned in ultrasound and fats free in degreasing tanks. Then, follows activation of the material in a variety of salts and acids. Thereafter, workpieces may be treated. At the end of each electroplating process is followed by washing and drying.