Galvanizing process and materials preparation varieties
In the galvanizing process, materials preparation comes in several unique kinds. Each one of them capable of creating a protective sheet through various types of treatment for specific uses. Zinc is less electronegative than Steel and, because of this, it acts as a sacrificial anode for corrosion, wearing away.
The most widely known and used among these procedures is certainly the hot dip galvanizing process, able to create a layer of protection thanks to a fusion bath that produces a metallurgical alloy. The cold process occurs by electrodeposition, forming a thin surface-preserving film. The former is more robust and durable compared to the other sorts of galvanizing, while the latter kind of materials preparation, despite having a lower durability, has excellent aesthetic qualities.
Other approaches to galvanizing are: spelter spraying (in which the powdered metal is sprayed on the areas that have to be treated), electroplating(immersion in a tank of molten metals), mechanical (it guarantees a high resistance anti-corrosive coating), trivalent (or chromium plating) and rotobarrel.
Such diverse ways of processing will originate equally dissimilar results, especially in the product’s appearance.