With the increase in national pipeline transportation construction, the pipeline has been widely used. The public may see a variety of steel pipes here and there, but only to see them; They know what steel pipes look like, but they don't know what they're classified into; Today we will briefly introduce anti-corrosion steel pipe,

Coating anticorrosion is one of the most basic methods of steel pipe anti-corrosion, metal pipe rust; Paint should be uniform and firm, so that it is isolated from a variety of corrosive media, let the editor take you to learn the principle of anti-corrosion steel pipe.

More and more composite materials or composite materials are used in the anticorrosive coating of steel pipes. These materials and structures should have good dielectric, physical, chemical and wide temperature adaptability. Polyethylene is odorless, non-toxic, contains wax, has low-temperature resistance (the lowest working temperature can reach 7-100℃), good chemical stability, resistance to most acid and alkali corrosion (no oxidizing acid), at room temperature, and Low water absorption, but because it is a linear molecule, it dissolves slowly in some organic solvents, does not swell, and has excellent electrical insulation properties.

The advantages of anticorrosive steel pipe  are as follows:

1. The mechanical strength of steel pipe is combined with the corrosion resistance of polyethylene; The outer wall coating is more than 2.5mm thick and is resistant to scratches and collisions.

2. The friction coefficient of the anticorrosive steel tube inner wall is small, which fundamentally reduces the friction consumption; Inner wall anticorrosive coatings meet the accepted standards.

There are two main requirements for coating:

1. Good corrosion resistance: Under the action of corrosive media such as acid, alkali, salt, industrial wastewater, and chemical atmosphere, the coating formed by the coating is relatively stable, will not be dissolved by caustic agent, has good impervious resistance: when the coating and high permeability liquid or gas medium contact, can prevent the coating penetration and corrosion of the pipeline surface! Good adhesion and flexibility: the coating will not fall off due to vibration or slight deformation of the pipe!

Most of the metal storage tanks are aboveground tanks, and the coating on the surface of the tank should have good weather resistance in addition to anti-corrosion performance. Commonly used coatings are chlorosulfonated polyethylene, chlorinated rubber, high vinyl chloride, acrylic resin, polyurethane, etc. In recent years, outdoor structure coating at home and abroad tends to use composite coating structures, such as epoxy zinc-rich primer + high solid epoxy intermediate paint + polyurethane/acrylic top paint.

At present, the commonly used oil storage tank inner coating (lining) materials in the domestic market include film coating such as anti-static, heavy coating such as glass flake, glass steel lining, and so on.

Cangzhou shenlong pipe manufacturing co., ltd. Is engaged in oil, gas, water, coal slurry mixing medium steel pipeline coating operations, anti-corrosion, insulation, piping is set in a body's specialized pipeline engineering precast construction enterprises, products used in an oil pipeline, chemical piping, electrical, pipe, gas pipe, heat pipes, sewage pipes, etc. Anti-corrosion processing of straight pipe and bend pipe DN40-3000 three-layer structure polyolefin (PE, PP, TPEP,3LPE) steel pipe coated with anti-corrosion, DN40-3800 steel hot stewed bend pipe and pipe fittings coated with FBE, epoxy resin coating anti-corrosion, DN40-3800 steel pipe inner wall resistance reduction, solvent-free epoxy steel pipe, epoxy paint anti-corrosion, Coated plastic steel pipe, dip plastic steel pipe. They are lined with plastic steel pipe PE, PO, PP, PTFE, HDPE, and polymer polyethylene corrosion. The company is in strict accordance with China Petroleum and Natural Gas SY/T0413-2002, national GB/T23257-2009, German DIN 30670, American AWWA C210, and other international and domestic anti-corrosion standards.