High density polyethylene (HDPE) wound structure wall tube is formed by hot winding

1. Hot-state winding forming with high weld quality. The flat and U-shaped strips extruded from the extruder die in molten state are evenly wound on the heated roller die according to the predetermined position, thus ensuring the weld quality of the structural wall tube. Especially in the structural design, the welded seam of the flat material belt is covered by the polyethylene-coated support tube, which improves the external pressure resistance of the whole product. 2. that pipe connection with excellent installation performance adopt the electric fusion connection technology of embedding electric fuse in the socket and socket with the same material, and the connection quality is high. It can be 100% leak-free, ensuring the same service life of the pipeline system and the safety of operation. At the same time, because the product is lighter than other pipes under the same application conditions, it is convenient for transportation and construction, which can reduce the construction cost. In the application scope, the pipe can be directly laid without passing the concrete cushion and the concrete pipe foundation groove, and the excavation, pipe laying and backfilling are basically completed, which simplifies the construction procedure and shortens the construction period. When the project is accepted, the closed air test is used instead of the closed water test, which not only speeds up the acceptance, but also saves the complicated work and a lot of test expenses in the closed water test. Crater pipe connection Crater pipe connection 3. Good Flexibility The high-density polyethylene wound structural wall pipe has good flexibility on the macro level, and the local pipe section has strong rigidity and overall external pressure resistance, which can ensure the traffic safety when used on the road with overweight load. Due to the flexibility of the pipe, when geological activities such as earthquake and uneven settlement occur, the pipeline damage loss can be minimized, thus improving the ability of public facilities to resist earthquakes and reduce disasters. Kela tube flexibility Kela tube flexibility Kela tube flexibility Kela tube flexibility 4.HDPE can be recycled, which belongs to high-density polypropylene, the main raw material for winding structural wall pipes with green and environmental protection products. It has no toxicity and no pollution in the production process, and the waste pipes can be recycled 100%. It is indeed an environmentally friendly and safe green product. 5. Corrosion resistance, aging resistance and service life guarantee 50 years. High-density polyethylene has strong resistance to chemical corrosion and erosion. Therefore, when the wound structure wall pipe is transported with corrosive fluid or laid in corrosive soil, it does not need anticorrosion treatment, and its performance is much better than other pipes. In the design process, the reasonable product structure is selected to ensure that the service life of plastic pipes is over 50 years, and maintenance-free during the service life. 6. The roughness of the inner wall of the pipe is low, and the roughness n of the inner wall of the structural wall pipe product with large water transmission capacity is about 0.010, so the specific friction is smaller when conveying fluid, and the water transmission capacity can be greatly improved compared with that of the cement pipe under the same use conditions. Therefore, the cement pipe with larger inner diameter can be replaced by the wound structure wall pipe with smaller inner diameter. Under the same conditions, the engineering and reliability of using the wound structure wall pipe will be improved compared with the traditional pipe, and the comprehensive benefits will be obvious, especially in the narrow construction site, dense buildings, complex underground pipelines and busy traffic sections, and in the laying of acid-base soil.