The Use And Advantages Of 3PE Anti-corrosion Steel Pipe And Related Anti-corrosion Structure

Other anti-corrosion methods include IPN8710, FBE epoxy powder, epoxy coal tar, and other anti-corrosion methods. Generally refers to the anti-corrosion of the outer wall of the steel pipe.

First, the anti-corrosion structure of 3PE anti-corrosion steel pipe

Anti-corrosion form of the outer wall of the steel pipe. 3PE anti-corrosion generally consists of a 3-layer structure:

The first layer of epoxy powder (FBE>100um)

The second layer of adhesive (AD) 170~250um

The third layer of polyethylene (PE) 2.5~3.7mm

In actual operation, the three materials are mixed and integrated, and after processing, they are firmly combined with the steel pipe to form an excellent anti-corrosion layer. Its processing methods are generally divided into two types: winding type and round mold coating type. 3PE anti-corrosion steel pipe coating (three-layer polyethylene anti-corrosion coating) is a new anti-corrosion steel pipe coating that cleverly combines the European 2PE anti-corrosion layer and the widely used epoxy powder anti-corrosion steel pipe coating (FBE) in North America. It has been recognized and used all over the world for more than ten years. The coating of 3PE anti-corrosion steel pipe is the epoxy powder anti-corrosion coating that contacts the bottom layer and the steel pipe surface, and the middle layer is a copolymer adhesive with branched structure functional groups. The surface layer is a high-density polyethylene anti-corrosion coating.

The three-pe anti-corrosion coating combines the high impermeability and high mechanical properties of epoxy resin and polyethylene materials. So far, it is recognized worldwide as the best pipeline anti-corrosion coating with the best performance and is therefore used in many projects.

Second, steel pipe inner wall anti-corrosion

There are two types of steel pipe inner wall anti-corrosion: one is hot-melt epoxy resin powder anti-corrosion (high-temperature sintering), and the other is liquid epoxy coating, commonly used liquid epoxy IPN8710 (normal temperature cold spraying). The two types of inner wall anti-corrosion have different anti-corrosion processes and performances, which are specifically manifested in:

Third, the use of 3PE anti-corrosion steel pipes

For the use of 3PE anti-corrosion steel pipes, many people only know one but not the other. Its function covers a wide range. It is suitable for underground coal mine water supply and drainage, underground grouting, positive and negative pressure ventilation, gas extraction, fire sprinklers, and other pipe networks. Thermal power plants process water waste slag and return water transportation pipelines. It has excellent applicability for water supply pipelines of anti-spray and sprinkler systems. Cable protection casings for electricity, communications, highways, etc. It is suitable for high-rise building water supply, heating network heating, tap water projects, gas transportation, buried water supply, and other pipelines. Process pipelines for transporting corrosive media in oil pipelines, chemical pharmaceuticals, printing and dyeing, and other industries. Sewage treatment discharge pipes, sewage pipes, and biological pool anti-corrosion projects. Agricultural irrigation pipes, deep well pipes, drainage pipes, and other networks, etc. It can be said that 3PE anti-corrosion steel pipes are indispensable in the current construction, and I believe that through the extension of technology, it will still have more brilliant achievements in the future.

Fourth, the advantages of 3PE anti-corrosion steel pipes

Ordinary steel pipes will be seriously corroded when used in harsh environments, which will reduce the service life of the steel pipes. The service life of anti-corrosion and thermal insulation steel pipes is also relatively long. Generally, they can be used for about 30-50 years. Correct installation and use can also reduce the maintenance cost of the pipeline network. Anti-corrosion and thermal insulation steel pipes can also be equipped with an alarm system to automatically detect pipeline leakage faults, accurately know the fault location, and automatically alarm. 3PE anti-corrosion and thermal insulation steel pipes have good thermal insulation performance, and the heat loss is only 25% of traditional pipes. Long-term operation can still save a lot of resources and significantly reduce energy costs. It also has strong waterproof and corrosion resistance and does not require an attached trench. It can be directly buried underground or in water. It is also simple and quick in construction, and the comprehensive cost is relatively low. It also has good corrosion resistance and impact resistance under low-temperature conditions and can be directly buried in frozen soil in certain environments.

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