The cost of the pipeline must be comprehensively explored from the perspective of the entire cycle, not only to think about the cost of the pipe, but also to think about the device construction of the pipe, the subsequent operating costs and the use of life. Therefore, the municipal anticorrosive steel pipe becomes the first choice. Because the contraction coefficient of epoxy powder coating, steel pipe, heat-shrinking rubber sleeve and heat-shrinking sleeve polyethylene layer is different, so even if the heat shrinkable sleeve construction product is very good, it will follow the increase of pipe life.

In a three-layer layout, the critical infection of the fused epoxy powder coating is: a continuation of the coating, which is bonded to the outside of the steel tube with good chemical resistance and resistance to cathodic disbondment; The reactive group reaction constitutes a chemical bond, ensuring that all anti-corrosion layers have excellent adhesion at higher temperatures. The intermediate layer is usually a copolymer binder, its critical position is polyolefin, the current common acceptance is vinyl copolymerization. Adhesives.

The polar functional group of the copolymer adhesive and the epoxy group of the fused epoxy powder coating can react innate hydrogen bonds or chemical bonds, so that the intermediate layer and the bottom layer form an excellent bond; the non-polar ethylene portion and the surface layer Polyethylene has a good affinity, so that the intermediate layer and the surface layer also have a good bonding effect. Polyethylene surface layer of the important infection.

The critical infection of polyethylene surface layer is from the mechanical guardian and antiseptic infection, and has the same purpose as the traditional two-layer polyethylene coating. The use of municipal anti-corrosion steel pipe is particularly useful for infecting the fake decorative surface. It was originally used for underground drainage and water supply in coal mines. Underground shotcrete, pumping gas, positive and negative pressure ventilation, fire sprinkler and other pipe networks.

Thermal power plant process water waste residue, backwater delivery pipeline. About the sprinkler, sprinkler system, the water supply pipeline has a wealth of applicability. Power, communications, highways and other cable guard sleeve. Suitable for high-rise building water supply, heating network heating, tap water Engineering, gas transportation, buried water transmission and other pipelines.