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3PE anti-corrosion steel pipe refers to a steel pipe with a three-layer polyethylene (3PE) anti-corrosion coating on the outer wall of the steel pipe. 3pe anti-corrosion steel pipe base metal includes seamless steel pipe, spiral steel pipe and straight seam steel pipe.
The three-layer polyethylene (3PE) anti-corrosion coating is widely used in the oil pipeline industry due to its good corrosion resistance, water and vapor permeability and mechanical properties. Introduction Broadcast Editor 3PE anti-corrosion steel pipe refers to 3-layer structure polyethylene coating (MAPEC) external anti-corrosion steel pipe, which is a commonly used anti-corrosion pipeline in China. There are also IPN8710, FBE epoxy powder, epoxy coal asphalt and other anti-corrosion methods. It generally refers to the anti-corrosion of the outer wall of steel pipes.
Anti-corrosion structure broadcast edit steel pipe outer wall anti-corrosion form 3PE anti-corrosion generally consists of 3 layers of structure: the first layer of epoxy powder (FBE>100um), the second layer of adhesive (AD) 170~250um, the third layer of polyethylene (PE) 1.8~3.7mm, 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 die wrapping type. 3PE anti-corrosion steel pipe coating, also known as (triple polyethylene anti-corrosion coating), is a combination of 2PE anti-corrosion coating in Europe and epoxy powder anti-corrosion steel pipe coating (FBE) widely used in North America for more than ten years. The coating of 3PE anti-corrosion steel pipe is epoxy powder anti-corrosion coating in contact with the steel pipe surface, and the middle layer is a copolymer adhesive with branched structural functional groups. The surface layer is high-density polyethylene anti-corrosion coating. 3PE anti-corrosion coating combines the characteristics of epoxy resin and polyethylene materials with high impermeability and high mechanical properties. It is recognized as the best and best performing anti-corrosion coating for pipes so far, and is therefore used in many projects.
Anti-corrosion of steel pipe inner wall corrosion prevention of steel pipe inner wall corrosion is divided into two types: one is hot melt epoxy resin powder anti-corrosion (high-temperature fusion), the other is liquid epoxy coating, commonly used liquid epoxy IPN8710 (room temperature cold spraying). These two inner wall anti-corrosion forms have different anti-corrosion processes and properties, which are specifically manifested in: pipeline use requirements, inner coating thickness (um), drag-reducing pipe (liquid epoxy coating), ≥50, anti-corrosion pipe (high-temperature fusion epoxy resin powder coating), ordinary grade≥250, reinforced grade≥350
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