The invention relates to the technical field of pvc line pipe production, in particular to a high-strength wear-resistant PVC pipe and its production process. With the rapid development of urbanization in China, a large number of farmers have moved from rural areas to cities. In order to meet the material and spiritual and cultural needs of people moving to towns, many public gathering places have to be built. There are two types of power supply lines in these public gathering places, namely, bare lines are mainly laid on the ceiling and floor. But ceilings and floors have a lot of flammable materials, so pvc pipes are needed to protect their internal circuits. Otherwise, the line will be short-circuited due to aging.

In order to overcome the above technical problems, technicians provide a high-strength wear-resistant polyvinyl chloride pipe and its production process:(1) It is composed of polyvinyl chloride resin, butyl stearate, diethylene glycol dibenzoate, glycerol monopalmitate, Mixture A is made of methyl phosphotriamine, nano zirconium carbide, cast stone powder, filler masterbatch and erythritol. Mixture B is made of polytetrafluoroethylene, high molecular weight polyethylene, tert-butylbenzene phosphate, microcrystalline paraffin, tungsten disulfide, aluminum hydroxy distearate and salsalsalsalate bisphenol a ester. Mixture A and mixture B are uniformly mixed and then sent to a twin-screw extruder for extrusion molding into a tube, which solves the problem of poor wear resistance of the existing PVC conduit and easy friction damage during installation. (2) Put the raw materials into a feed hopper, enter an extrusion bin, melt the inner wall of an extrusion bin with an electric heating wire, cut with a screw, and then transport it to an extrusion die. The molten raw material is extruded by an extrusion die into the second feed hopper, then into the second extrusion bin, further melted by the electric heating wire on the inner wall of the second extrusion bin, and then cut by the second screw and transported to the second extrusion die. The melted raw material is formed into a cylinder through several forming holes of the second extrusion die, and the cutting plate is driven to move up and down circularly by the operation of the stretching cylinder and the movable rod, and the cylindrical raw material is cut into particles, which solves the existing PVC The problems of low mixing times, poor mixing effect, and low quality of the obtained PVC line pipe in the production process of PVC pipe. It is realized by the following technical scheme: a high-strength wear-resistant polyvinyl chloride lined pipe, comprising the following components in parts by weight: 50-70 parts of polyvinyl chloride resin, 25-35 parts of polytetrafluoroethylene, 10-20 parts of high molecular weight polyethylene, 3-6 parts of butyl stearate, 12-18 parts of tert-butyl phosphate, 10-15 parts of diethylene glycol dibenzoate and 3-5 parts of microcrystalline paraffin. Palmitate 5-4.5 parts, hexamethylphosphoric triamide 4 parts. 8-12 parts of tungsten disulfide, 10-15 parts of cast stone powder, 1.5-2.5 parts of hydroxy aluminum distearate, 1-2 parts of salsalsalate bisphenol a ester, 16-22 parts of filler masterbatch; mix mixture a and mixture B Uniformly, and then sent to a twin-screw extruder for extrusion molding to make pipes. The beneficial effects of the present invention are:

According to the production process of the high-strength wear-resistant PVC conduit of the present invention, the PVC conduit has excellent wear resistance, avoids friction damage caused by the installation of the PVC conduit, has a good safety factor, and has excellent mechanical strength, Aging resistance, chemical resistance and heat resistance greatly extend the service life of the PVC conduit, expand the application field of the product, and have broad application prospects; obtain higher quality filling masterbatch, the PVC conduit has high mechanical strength and high wear resistance.