Surface treatment techniques and anti-corrosion strategies for carbon steel pipes

Surface treatment techniques and anti-corrosion strategies for carbon steel pipes

To enhance the corrosion resistance and service life of Carbon Steel Pipes, surface treatment technologies are of vital importance. Common treatment methods include galvanizing, coating and lining techniques. Hot-dip galvanizing involves immersing the steel pipes in molten zinc liquid to form a dense zinc-iron alloy layer, which can effectively isolate air and moisture. It is widely used in construction, agriculture and civil fields, such as the framework of greenhouse sheds and fire protection pipelines. 

The coating technology forms a protective film on the surface of steel pipes by spraying high-molecular materials such as epoxy powder and polyethylene coating. The fused epoxy powder (FBE) coating has excellent adhesion and chemical corrosion

 resistance, and is often used in long-distance oil and gas pipelines; the three-layer PE coating combines epoxy primer, adhesive and polyethylene outer sheath, has strong resistance to mechanical damage and is suitable for harsh environments.