Gas pipeline steel pipe spot strengthened 3pe anti-corrosion L245N seamless steel pipe production plant

Description :

　　Our company can undertake pipeline anti-corrosion projects for single-layer and double-layer fusion bonded epoxy powder (FBE), double-layer polyethylene (2PE steel pipe) and three-layer polyethylene (3PE steel pipe), double-layer polypropylene (2PP) and three-layer polypropylene (3PP), epoxy coal tar anti-corrosion coating pipeline external anti-corrosion engineering, IPN8710 high molecular weight anti-corrosion coating anti-corrosion, cement mortar pipeline internal wall anti-corrosion and other pipeline internal coating anti-corrosion structures, as well as direct buried steel jacket steel rock wool insulation, black/yellow leather jacket polyurethane foam insulation steel pipe engineering, in accordance with DIN30670? The 30671 and SY/T4013 0315 standards are widely used in oil, natural gas, coal gas, water and other transportation pipelines, as well as urban centralized heating and gas pipelines in petrochemical enterprises. The products have many advantages such as high strength, high pressure resistance, easy installation, low cost, and long service life, and are highly praised by users.

　　3pe anti-corrosion steel pipe polyethylene three-layer structure protective layer, also known as three-layer PE (3pe), is an advanced anti-corrosion technology introduced from abroad in recent years. Its full name is fusion bonded epoxy/extruded polyethylene structural protective layer, which consists of the following three layers: the bottom layer is fusion bonded epoxy (80 μ m); The middle layer is adhesive (170250 μ m); The surface layer is extruded polyethylene (about 2mm). The total thickness of the protective layer is about 1.8-3.7mm. In the three-layer structure, the main function of the fusion bonded epoxy powder coating is to form a continuous coating film, which is directly bonded to the surface of the steel pipe and has good chemical corrosion resistance and cathodic stripping resistance; Reacts with the active groups of the intermediate layer adhesive to form a chemical bond, ensuring that the overall anti-corrosion layer has good adhesion at higher temperatures. The intermediate layer is usually a copolymer adhesive, which is mainly composed of polyolefin. Currently, ethylene based copolymer adhesives are widely used. The polar functional groups of the copolymer adhesive can react with the epoxy groups of the fusion bonded epoxy powder coating to form hydrogen bonds or chemical bonds, forming a good bond between the intermediate layer and the bottom layer; The non-polar ethylene portion has a good affinity with the surface layer polyethylene, so the intermediate layer also has good bonding performance with the surface layer. The main function of polyethylene surface layer is to provide mechanical protection and anti-corrosion, which is the same as the traditional two-layer structure polyethylene anti-corrosion layer.

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• 3pe anti-corrosion L245N seamless steel pipe