What are the main processes for anti-corrosion of steel pipes?

Anticorrosive insulation pipe is a type of steel structure, which has a series of advantages such as high strength, light weight, good seismic performance, fast construction speed, low foundation cost, small occupied area, high industrialization degree, and beautiful appearance. The quality of steel materials is uniform, with excellent plasticity and resistance. The steel is close to homogeneous isotropic, reliable in calculation, excellent in welding, simple in production, convenient in construction, excellent in installation and impermeability. It is suitable for enclosed structures, with good heat resistance, but poor in fire resistance.

Anticorrosive insulation pipes are mainly used in water works, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction ǎ n) One of the products. Used for liquid transportation: water supply and drainage. Used for gas transportation: gas, steam, liquefied petroleum gas. Used for construction: as a pile driving pipe and as a bridge; Wharf, road, building construction pipes, etc.

Steel pipe anti-corrosion refers to the corrosion caused by the chemical or electrochemical reactions of the pipeline caused by the utilization of the pipeline and the impact of the transportation medium during pipeline utilization and transportation. Plastic coated steel pipes have a hollow cross-section, with a length much greater than the diameter or circumference of the steel. Divided into circular, square, rectangular, and irregular steel pipes according to their cross-sectional shapes; According to material, it is divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes, and composite steel pipes; Classified by purpose, it is used for transportation pipelines, engineering structures, thermal equipment, petrochemical industry, mechanical manufacturing, geological drilling, high-pressure equipment steel pipes, etc; According to production processes, it is divided into seamless steel pipes and welded steel pipes. Seamless steel pipes are further divided into hot rolled and cold rolled (drawn) types, and welded steel pipes are further divided into straight seam welded steel pipes and spiral seam welded steel pipes in order to effectively prevent or control pipeline corrosion.