Chromate conversion in Chicago coatings is a type of conversion coating that is applied to passivate zinc, aluminum, cadmium, silver, copper, magnesium, tin, and their alloys to retard corrosion. The process involves the use of various toxic chromium compounds that can include hexavalent chromium. The industry is now developing less toxic alternatives to comply with the substance restriction legislation. One option is the trivalent chromate conversion, which is less harmful to the environment. Chrome plating is typically used on galvanized parts to defend zinc from white corrosion, which is primarily a cosmetic issue. It cannot be applied directly to steel or iron, and does not enhance the anodic protection of the underlying steel's zinc against brown corrosion. It is also used most often in aluminum alloy parts in the aircraft industry, where it is often referred to as a chemical film. It also has additional value as a primer for subsequent organic coatings, as any untreated met...
Chromium is a metal, but it is not useful for solid or pure substances. Chromium really means that you have a thin layer and a layer of chrome on the object (most of the object has steel, but sometimes brass, aluminum, copper, plastic, or stainless steel). People generally think of any glossy finish as chrome even when it has nothing to do with chrome. For example, electro polished stainless steel boat rigs, bright painted wheels, vacuum metallized balloons and hulls, bright polished aluminum motorcycle parts are sometimes referred to as 'chrome' by the common person. Chrome is more blue, reflective, and more specular than other finishes. If we put one end of the measuring stick in a gloss finish, the reflection of the clouds can be seen in the chrome. Popular posts on this blog Electroplating means the deposition of a thin layer of metal to a workpiece using an electrolytic process. Electroplating is useful in the automotive industry for chrome plating and in the electronics...