At this time, only heat shrinkable tape can be used instead . The structure of the three-layer PE anticorrosive layer is: the bottom layer is FBE, about 50-127μm, the middle layer is copolymer glue, about 200μm, and the outer layer is polyethylene, about 3mm. A53 steel pipe is intended mechanical and pressure applications, but is also acceptable for and widely used in air, water, steam, and gas lines. On the surface, when the adhesive is still in a molten state, the second extruder axial fan extrudes the polyethylene film and wraps it around the adhesive to form a coating. Reinforced 3PE anti-corrosion refers to the anti-corrosion grade of 3PE, and also refers to the thickness of 3PE anti-corrosion. It is because they use different outer anti-corrosion layers. Agriculture: agricultural irrigation pipes, deep well pipes, drainage pipes and other networks.The base materials of anticorrosive steel pipes are straight seam steel pipes and spiral steel pipes. 3PE anti-corrosion also has elbows or irregular pipe bodies. Anti-corrosion with a thickness greater than or equal to 1. An extruder extrudes the adhesive film according to a certain thickness and density and winds it on the steel pipe.
If the outer protective pipe is a polyethylene pipe, there is no need to do anti-corrosion. In such a situation, it is better to use heat shrinkable tape to replace 3PE anti-corrosion. Sewage treatment: sewage treatment discharge pipes, sewage pipes and anti-corrosion engineering of biological ponds. The commonly used insulation material is rigid polyurethane foam.  Commonly used coatings are amine cured epoxy resin and polyamide epoxy resin. An anti-corrosion layer of 3PE anti-corrosion steel pipe is very important to the life of buried pipelines. 3PE anti-corrosion includes three anti-corrosion layers.0mm can be said to be enhanced anti-corrosion. Municipal engineering: suitable for high-rise building water supply, heating network heating, tap water engineering, gas transportation, buried water transportation and ec fan other pipelines. 3PE anti-corrosion operations are basically carried out in anti-corrosion steel pipe factories, and generally cannot be carried out on-site.
The production process of 3PE anticorrosive steel pipe is to spray a layer of epoxy primer on the surface of the steel pipe, and then send the steel pipe into the coating area at a certain rotation speed. Anticorrosive steel pipes are widely used in the pipeline engineering fields of my country's petroleum, chemical, natural gas, heat, sewage treatment, water sources, bridges, and steel structures. The three-layer polyethylene (3PE) anticorrosive coating has been widely used in the petroleum pipeline industry due to its good corrosion resistance, water vapor permeability and mechanical properties. It is impossible to use 3PE anti-corrosion technology. Petroleum: Petroleum pipelines, process pipelines for transporting corrosive media in chemical and pharmaceutical industries, printing and dyeing industries