Eletrogalvanização na indústria automobilística

Corrosion of steel is a common problem in environments with high levels of chlorides and these electroplating environments is an efficient alternative to protect steel from corrosion. The electroplating process occurs through the steel casing with zinc metal during the electrolysis to be coated which acts as cathode and the metal will coat the piece serves as the anode. The electrolyte solution must include a salt composed of zinc cations to be able to coat the steel. In the electroplating process, the steel substrate coverage is more homogeneous compared to hot-dip galvanized. In the electroplating process, control of coating thickness depends on the time that the piece is immersed in the zinc salt solution. In continuous electroplating steel plates is used the same basic principle used in conventional electroplating. This paper an evaluation of the benefits of continuous electroplating steel plate and it was shown that these coatings have unique applications in the automotive industry. These electrogalvanized steels have high quality surfaces with mass 50-80 g/m² zinc deposited on the substrate, sufficient to meet the requirements related to corrosion. The electrogalvanized steels are ideal for automobile panels, especially when compared to products by hot-dip galvanized with the same thickness requires a fabrication process much more complicated.