TPEP anti-corrosion steel pipe water pipeline TPEP anti-corrosion spiral steel pipe manufacturer

Description :

　　TPEP is an anti-corrosion structure and a new generation of anti-corrosion forms applied to long-distance water pipelines. Compared with traditional pipelines, it has many advantages and features. The external anti-corrosion of the pipeline is 3PE, and the internal anti-corrosion of the pipeline is fused epoxy powder. The anti-corrosion standard of the inner wall of the pipeline has reached food grade The TPEP anti-corrosion steel pipe project produced by the company can be buried and used for 50 years according to national standards to ensure the normal use of the pipelineThe composite process of TPEP anti-corrosion pipe base pipe and coating mainly involves preheating the base pipe to ensure that the surface temperature meets the temperature range required for plastic powder, and controlling the temperature before coating with plastic powder. Powder coating, also known as dispersion method, can be divided into: spraying: using compressed air to spray plastic powder through a nozzle; Suction coating: Use a vacuum pump to create negative pressure inside the tube and suck in plastic powder; Immersion: Store plastic powder in a container and immerse the preheated base tube in the powder; Rolling molding: Plastic powder is stored on the wall of the base pipe, and the rotating rolling base pipe evenly distributes the powder. Due to the surface of the base pipe reaching a certain temperature, the plastic powder melts and coats the pipe wall, forming a coating and an anti-corrosion layer.

　　The outer wall adopts a three-layer structure of anti-corrosion coating formed by hot melt bonding and winding technology, with the bottom layer of epoxy resin, the middle layer of adhesive, and the outer layer of polyethylene. The inner wall adopts a thermal spray epoxy powder anti-corrosion method, and the powder is uniformly coated on the surface of the pipe after high-temperature heating and fusion. Greatly improved coating adhesion and thickness, enhanced resistance to bumps and corrosion. It can produce 2PE, 3PE, internally and externally coated hot melt epoxy, internally and externally coated PE/2PE/3PE and other products, and both internally and externally coated products can achieve simultaneous coating and curing, forming a film in one go. This product obtained a national utility model patent in 2009. The thickness of the pipe wall is determined based on the burial method (trench burial, upper burial, or gallery burial), after calculation and reference to similar projects. To prevent the pipe body from breaking or cracking due to temperature changes and uneven settlement of the foundation, as well as concentrated seepage between the pipe body and the dam body, the design requires that the pipe body should be placed on a good foundation, and a concrete or masonry cushion should be set between the pipe body and the foundation; Do not place buried pipes on the fill soil of the dam body; Expansion joints shall be set every 1020m along the pipeline, with water stops installed in the joints; The anti-seepage structure such as clay core wall or inclined wall should be appropriately thickened at the joint with the pipeline, and a 12m thick impermeable soil material should be backfilled outside the pipeline; Set interception rings every 1020m on the outside of the pipeline to increase the seepage path along the pipeline surface and prevent concentrated seepage.

　　TPEP anti-corrosion steel pipe, the inner wall of the product adopts thermal spraying epoxy powder anti-corrosion method, and the powder is uniformly coated on the surface of the pipe after high-temperature heating and fusion. The product is suitable for pipeline transportation engineering under various conditions, which is a revolution for traditional pipeline products and a choice to replace traditional products such as steel cylinder concrete pipes, ductile iron pipes, PE pipes, etc. The outer wall adopts 3PE anti-corrosion technology (3PE outer wall anti-corrosion technology is currently a mature anti-corrosion technology), which is a three-layer structure of polyethylene outer wall anti-corrosion. It is widely used, provides good anti-corrosion protection for steel pipes, and has a long service life. TPEP anti-corrosion steel pipe has been widely used as a superior anti-corrosion material since the birth of TPEP differentiated materials in the 1930s. Its application fields are becoming more and more widespread, and it is widely used in various pipelines such as heating, cooling, oil transportation, and steam transportation due to its simple construction and clear energy-saving and anti-corrosion effects. Used in large quantities for various pipelines such as heating, cooling, oil transportation, and steam transportation.TPEP anti-corrosion steel pipe is a type of pipeline (steel pipe) used in different working environments. In order to slow down or prevent the corrosion and deterioration of the pipeline under the chemical and electrochemical action of the external medium or the metabolic activity of microorganisms, 2 or 3 layers of polyethylene (TPEP) are coated on its outer wall to achieve pipeline anti-corrosion. The service life of TPEP anti-corrosion pipe is extended by 3-5 times. TPEP anti-corrosion steel pipe coating, also known as three-layer polyethylene anti-corrosion coating, is a new type of anti-corrosion steel pipe coating that cleverly combines Europe's 2PE anti-corrosion coating with the widely used epoxy powder anti-corrosion steel pipe coating (FBE) in North America. It has been recognized and used worldwide for over ten years. The coating of TPEP anti-corrosion steel pipe is an epoxy powder anti-corrosion coating in contact with the bottom layer and the steel pipe surface, and a copolymer adhesive with branched functional groups in the middle layer. The surface layer is a high-density polyethylene anti-corrosion coating. The 3PE anti-corrosion coating combines the high impermeability and mechanical properties of epoxy resin and polyethylene materials.

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