3PE anti-corrosion steel pipe factory direct sales

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Cangzhou Tianyuan Anti-corrosion Project Youxian Company Zhang
The anti-corrosion structure of the anti-corrosion steel pipe is: polyethylene three-layer structure protective layer, also known as three-layer/. It is an advanced external anti-corrosion technology introduced from China in recent years. Its structure consists of the following three layers: the bottom layer is sintered epoxy, the middle layer is adhesive, and the top layer is extruded polyethylene. The three-layer anti-corrosion layer combines the interfacial properties and chemical resistance properties of the epoxy coating with the mechanical protection properties of the extruded polyethylene anti-corrosion layer, thereby significantly improving the performance of each. According to relevant information, three layers can extend the service life of buried pipelines to years. This anti-corrosion coating is widely used in long-distance oil and gas pipelines. Sintered epoxy powder is a production process that uses thermosetting powder coating to form a film by spraying in one go. It has extremely superior anti-corrosion properties, good chemical corrosion resistance, high bonding strength with the base material, smooth surface, wear resistance, high temperature resistance, and a service life of more than When coating, it fully melts and flows, leveling and covering the surface of the steel pipe. There is no gap between it and the base material, and it is completely tightly combined. During the process, a chemical reaction occurs. The epoxy powder resin is cured by heat and cross-linked to form a continuous thermosetting polymer. It forms a certain degree of chemical bond with the steel pipe, thus determining its excellent anti-corrosion layer originating from the crossing project. Its patching uses two-component liquid epoxy, which can be completely cured within an hour, greatly increasing the construction speed. Therefore, sintered epoxy powder anti-corrosion coating is widely used in the coating and anti-corrosion of onshore, underwater, submarine and other pipelines, and there are mature international and domestic standards corresponding to it. In the United States, this form of anti-corrosion has almost replaced the traditional The coal tar enamel used in the d(d) steel pipe piles of the Shandong Bay Bridge in China is coated with three layers of fused epoxy powder to resist seawater corrosion. The disadvantage is that the cost is relatively high, currently reaching RMB/year.