Development of Thermal Spraying Technology for Long Term Corrosion Protection of Steel Structures

The development of thermal spraying technology used for long term corrosion protection of steel structures is summarized.The anticorrosive mechanism and characteristics are compared between zinc coating,aluminum coating and zinc-aluminum alloy coatings.The development of thermal spraying anticorrosion technology is reviewed from three aspects,i.e.,the research on corrosion resistance of coatings;anticorrosive thermal spraying materials;thermal spraying approaches.The problems of thermal spraying anticorrosion technology are referred.And the prospect of development about this technology is put forward.