Red 3PE corrosion-resistant steel pipe
Introduction of Red 3PE Corrosion Resistant Steel Pipe
Red 3PE anti-corrosion steel pipe surface is red. Is a pipe (pipe) in different working environments, in order to slow down or prevent the pipeline in the medium of chemical, electrochemical or by the metabolic activity of microbial erosion and deterioration in its outer wall coated with two or three layers of polyethylene (3PE) in order to achieve pipeline corrosion, 3pe anti-corrosion pipe life extension 3-5 times.
Red 3PE anti-corrosion steel polyethylene three-tier structure of the protective layer, also known as three-tier PE (3PE), in recent years from abroad to introduce advanced anti-corrosion technology. Its structure is composed of the following three layers: the bottom layer is fused epoxy (≥80μm); the middle layer is the adhesive (170-250μm); the surface layer is extruded Polyethylene (about 2 mm). The total thickness of the protective layer is about 1.8-3.7mm. In three-layer structure, the main role of fused epoxy powder coating is: the formation of a continuous coating, and steel pipe surface directly bonded with good chemical resistance and anti-cathodic stripping performance; with the middle layer of adhesive Reactive group reaction to form a chemical bond to ensure that the overall coating at high temperatures with good adhesion. The intermediate layer is usually a copolymer binder, the main component of which is polyolefin, is currently widely used is a vinyl copolymer adhesive. The polar functional group of the copolymer adhesive and the epoxy group of the fused epoxy powder coating can react to form hydrogen bond or chemical bond to form a good bond between the intermediate layer and the bottom layer; and the non-polar ethylene part and the surface layer Polyethylene has a good affinity, so the middle layer and the surface layer also has a good adhesive properties. The main role of polyethylene surface layer from the mechanical protection and anti-corrosion effect, with the traditional two-tier structure of polyethylene anti-corrosion layer has the same effect.
Red 3PE anti-corrosion steel pipe widely used
Red 3PE corrosion-resistant steel pipe is a use of a wider range of anti-corrosion steel pipe mode, in the water pipeline also has his presence. The general 3PE corrosion-resistant steel pipe is only the outer wall of corrosion-resistant interior if you do not go acid-base liquid is not treated for corrosion, and if the water pipeline is not the same water contains a lot of corrosion chemical composition enough to corrosion carbon steel pipe must And then in the wall for preservative treatment. So that not only can achieve external anti-corrosion effect of internal corrosion can also be used at ease.
