Electro galvanizing galvanization types and procedures
Electro galvanizing is one of the best known galvanization treatment types, ideal for protecting smaller artifacts from corrosion. This particular process guarantees a top quality electro-coated film as an alternative to more expensive methods such as chrome and nickel plating. The purpose of Electro galvanizing is to safeguard the articles from the weather factors’ corrosive action. It occurs through electro-deposition, the steel’s surface is protected by applying a metal layer that technically resembles more a cataphoresis paint than a galvanizing process.
Among the so called galvanization types, the most widely used process is denominated as hot dip bathing, and it is carried out by immersing a ferrous artifact in a tank containing molten zinc at a 450°C temperature. The covering mineral creates a metallurgical reaction with the based one, creating an outer alloy that provides a long-lasting protection. That is not all, it also acts with the electrochemical mechanism: in case the external patina gets damaged, the obtained level would tend to “sacrifice” itself to avoid iron oxidation and consequently rust formation.