Anti-Corrosion Technology to Steel Structure in Splash Zone

With the development of marine oil and gas exploration,more and more attention has been given to marine corrosive environment during the last decades.Marine corrosion environments are generally divided into atmospheric,splash,tidal,immersion,and mud zones.The protection to splash zone corrosion must be conducted with high priority.In the splash zone,aside from seawater that causes normal marine corrosion,other factors such as temperature variations,tidal action,wave impacts,man-made pollutants,sufficient oxygen(O2),ultraviolet rays,and salt spray that continually washes upon objects,will cause severe corrosion damage.Note that rust self-oxidation greatly accounts for the corrosion of steel structures in the splash zone.At present,the domestic iron and steel facilities is usually used to protect paint for marine atmospheric zone,and electrochemical protection for seawater immersion zone.These have made better protection,but the protection effect for corrosion protection in splash zone is poor.However,the petrolatum tape cover(PTC) is the most useful technology to protect the steel in splash zone,as is emphatically introduced here.