3pe corrosion steel pipe plant 3pe pipeline corrosion (pipe) in different work environments, to mitigate or prevent any chemical, electrochemical action pipeline outside the media or by the metabolic activity of microorganisms and erosion and deterioration in its outer wall painted 2 or 3 layers of polyethylene (3PE) to achieve pipeline corrosion, 3pe preservative tube 3-5 times longer life. 3PE anti-corrosion polyethylene pipe, also known as three-layer structure of the protective layer PE (3PE), is imported from abroad in recent years, advanced anti-corrosion technology. It's called the FBE / extruded polyethylene protective layer structure, the structure consists of three layers: The bottom layer is fusion bonded epoxy (≥80μm); the middle layer of adhesive (170-250μm); surface layer of extruded Polyethylene (about 2mm). The total thickness of the protective layer of about 1.8-3.7mm. In the three-tier structure, the main role of FBE coatings are: to form a continuous coating, bonded directly to the pipe surface and has good chemical resistance and resistance to cathodic stripping performance; and the middle layer of adhesive reactive group to form a chemical bond, to ensure the overall coating having a good adhesion at higher temperatures. The intermediate layer is typically a copolymer adhesive, whose main component is a polyolefin, is now widely used vinyl copolymer adhesive. Polar functional group portion of the copolymer adhesives and fusion bonded epoxy powder coating epoxy groups can react to generate hydrogen bonds or chemical bonds, the intermediate layer and the bottom layer to form a good bond; nonpolar ethylene portion and a surface layer polyethylene has good affinity for, and therefore the intermediate layer and the surface layer also has good bonding properties. The main role of the polyethylene surface layer is from mechanical protection and anti-corrosion effect, with the traditional two-story structure polyethylene coating has the same effect. 3PE anti-corrosion steel pipe structure: the first layer of epoxy powder (FBE> 100um), the second layer of adhesive (copolymer rubber) 170 ~ 250um, the third layer of polyethylene (PE) 2.5 ~ 3.7mm. These three materials closely together, and with the steel firm to form an excellent coating. 2PE anti-corrosion steel pipe: PE pipe corrosion story structure, the first layer of adhesive (AD), a second layer of polyethylene (PE), two kinds of integrated materials, with three layers of the same thickness PE Thickness: 1.7-2.5 diameter range Φ18 ~ Φ2420 Executive Standard: SY / T0413-2002 3pe anticorrosive steel Advantages: 1,3pe anti-corrosion steel pipe with high tightness, long-running can greatly save energy, reduce costs and protect the environment. 2, strong corrosion resistance, simple construction side has the speed, the service life of up to 30-50 years. 3, at low temperatures also have good corrosion resistance and impact resistance, PE and low water absorption (less than 0.01%). 4, along with high strength epoxy, PE, low water absorption and good flexibility and hot melt adhesives, high corrosion reliability.