Steel structure has become the best building material at present. However, the surface of the steel structure must be anti-corrosion and surface treatment to ensure the quality and safety of the steel structure.
After steel processing to before the factory, the surface of the components will inevitably be stained with contaminants such as oil, moisture, dust, and surface defects such as burrs, iron oxide scale, and rust layer. Therefore, the quality of steel surface treatment has a greater impact on the protective effect and life of the coating, sometimes even greater than the difference in the performance of the coating itself, which should be taken seriously. Here are three methods of steel structure anti-corrosion and surface treatment:
- Metal Protective Layer:The metal protective layer is a metal or alloy with cathodic or anodic protection. Through electroplating, spraying, chemical plating, hot plating and permeation plating, a metal protective layer is formed on the surface of the metal that needs to be protected ( Membrane) to isolate the contact between metal and corrosive media, or use electro-chemical protection to protect the metal to prevent corrosion.
- Chemical ProtectionLayer: A chemical or electrochemical method is used to form a corrosion-resistant compound film on the surface of the steel to isolate the contact between the corrosive medium and the metal to prevent corrosion of the metal.
- Non-metal Protective Layer:Use paint, plastic, enamel and other materials to form a protective film on the metal surface through brushing and spraying methods to isolate the metal from the corrosive medium, thereby preventing the metal from being corroded.
