3PE anti-corrosion steel pipe inside and outside wall anti-corrosion form
3PE anti-corrosion steel pipe refers to the 3-layer structure polyethylene coating (MAPEC) external anti-corrosion steel pipe, which is a kind of anti-corrosion pipeline commonly used in China. Other there are IPN8710, FBE epoxy powder, epoxy coal asphalt and other anti-corrosion ways. Generally refers to the outer wall of steel pipe anti-corrosion.
Steel pipe outer wall anti-corrosion form
3PE anti-corrosion generally consists of 3-layer 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
The actual operation of the three materials mixed into one, after processing to make it and the steel pipe firmly combined to form an excellent anti-corrosion layer. Its processing method is generally divided into two kinds of winding type and round mold wrapping type.
3PE anticorrosive steel pipe coating is also known as (three-layer polyethylene anticorrosive coating), which is a new anticorrosive steel pipe coating resulting from the clever combination of 2PE anticorrosive layer in Europe and epoxy powder anticorrosive steel pipe coating (FBE) widely used in North America. It has been recognized and used all over the world for more than ten years.
The coating of 3PE anti-corrosion steel pipe is the bottom layer and the steel pipe surface contacted by the epoxy powder anti-corrosion coating, and the middle layer is the copolymer binder with branching structure functional group. The top layer is high-density polyethylene anti-corrosion coating.
3pe anti-corrosion coating integrates the high impermeability and high mechanical properties of epoxy resin and polyethylene material. So far, it is the best anti-corrosion coating for pipeline with the best effect and performance globally, and thus is used in many projects.
Steel pipe wall anti-corrosion form
Steel pipe wall anti-corrosion is divided into two types: one is hot melt epoxy resin powder anti-corrosion (high temperature fusion), a liquid epoxy coating, commonly used liquid epoxy IPN8710 (room temperature cold spray). These two forms of inner wall anti-corrosion anti-corrosion process and performance is different specifically in: drag reduction type pipeline (liquid epoxy coating) and anti-corrosion type pipeline (high temperature fusion epoxy resin powder coating), anti-corrosion pipeline used in the hot fusion epoxy coating raw materials solvent-free, food-grade powder, environmentally friendly. Anti-corrosion process is hot melt spraying, and 250 ℃ steel pipe substrate reaction, the generation of steel-plastic alloy layer. The coating thickness is higher, the corrosion resistance is stronger, the friction coefficient is lower, and the theoretical life is higher.
Uses of 3PE anti-corrosion steel pipe
For the use of 3PE anti-corrosion steel pipe many people only know one of them but not the other, its role really covers a wide range, its applicable to coal mine underground water supply and drainage, underground slurry spraying, positive and negative pressure ventilation, gas extraction, fire sprinkler and other pipeline networks. Thermal power plant process water waste slag, return water transport pipeline. It has excellent applicability for the water supply pipeline of anti-sprinkler and sprinkler system. Cable protection casing for electric power, communication, highway, etc. Suitable for high-rise building water supply, heat network heating, water supply engineering, gas transmission, buried water transmission pipeline. Process piping for oil transmission pipeline, chemical and pharmaceutical, printing and dyeing industries conveying corrosive media. Sewage treatment discharge pipe, sewage pipe and biological pond anti-corrosion project. Agricultural irrigation pipe, deep well pipe, drainage pipe and other networks and other uses, it can be said that 3PE anti-corrosion steel pipe is essential in the current construction, and I believe that through the extension of science and technology, its future still has more brilliant achievements.
Advantages of 3PE anti-corrosion steel pipe
Ordinary steel pipe in the use of a bad environment, there will be serious corrosion, which will reduce the use of steel pipe years, the service life of anti-corrosion insulation steel pipe is also relatively long, in general, can be used for about 30-50 years, and the correct installation and use can also make the network maintenance costs become low, anti-corrosion insulation steel pipe can also be set up alarm system, automatic detection of pipe network leakage failure, accurate knowledge of the location of the fault and also can be used to detect the fault. Accurate knowledge of the location of the fault and will also automatically alarm.
3PE anti-corrosion insulation steel pipe insulation performance is good, heat loss is only twenty-five percent of the traditional pipe, long-term operation can still save relatively large resources, significantly reduce energy costs, and still has a relatively strong waterproof and corrosion resistance, and also does not need to be attached to the pipe trench, directly into the ground or water, in the construction is also simple and rapid, the comprehensive cost is also relatively low, in low temperature conditions Under low temperature conditions, it also has good corrosion and impact resistance, and in a certain environment can be directly buried in the permafrost.
