The invention relates to the technical field of threading pipe production, in particular a high-strength wear-resistant.PVCLine tube and its production process. With the rapid development of urbanization in China, a large number of farmers have moved from rural areas to urban areas. In order to meet the material and spiritual cultural needs of the people who moved to the towns, many public gathering places had 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. However, there are many flammable materials in the ceiling and floor, so it is necessary to use threading pipes to protect their internal wiring. Otherwise, a short circuit will occur due to line aging.

In order to overcome the above technical problems, technicians provide a high-strength wear-resistantPVCline pipe and its production process:(1)ByPVCResin, butyl stearate, diethylene glycol dibenzoate, glycerol monopalmitate, hexamethylphosphoric triamide, nano-zirconium carbide, cast stone powder, filler masterbatch and erythritol to make a mixtureA. MixturebMade of polytetrafluoroethylene, ultra-high molecular weight polyethylene, tert-butyl phenyl phosphate, microcrystalline paraffin, tungsten disulfide, hydroxy aluminum distearate andsalsalsalateof bisphenolaEster made. Finally the mixtureaand mixturebAfter mixing evenly, it is extruded into a twin-screw extruder to form a pipe, which solves the existing problem.PVCThe wear resistance of the wire pipe is poor, and the problem of friction damage during installation.(2)The raw material is put into the first feeding hopper, enters the first extrusion bin, melts with an electric heating wire on the inner wall of the first extrusion bin, cuts by the first screw, and then conveys to the first extrusion die. The melted raw material is extruded into the second feed hopper through the first extrusion die, 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. The operation of stretching the cylinder and the movable rod drives the cutting plate to move up and down circularly to cut the cylindrical raw material into particles, which solves the existing problems.PVCThe number of mixing times in the production process of wire pipe is small, the mixing effect is poor, and the results are obtained.PVCThe problem of low quality of line pipes. It is realized through the following technical solutions: a high-strength and wear-resistant polyvinyl chloride lined pipe, including the following components by weight: polyvinyl chloride resin50-70ptfe, ptfe25-35parts, ultra-high molecular weight polyethylene10-20Pour, butyl stearate3-6Tert-butyl benzene diphenyl phosphate12-18parts, diethylene glycol dibenzoate10-15Pour, microcrystalline paraffin3-5parts, silica10-15copies. palmitic acid monoester5-4.5Hexamethylphosphoric triamide4copies. Tungsten disulfide8-12Cast stone powder10-15Aluminum hydroxy distearate1.5-2.5copies,salsalsalate  BisphenolaEster1-2Part, filling masterbatch16-22parts; mix the mixtureaand mixturebMixed evenly, and then sent to the twin-screw extruder extrusion molding, made of pipe. The beneficial effects of the present invention are:

The above-mentioned high-strength wear-resistantPVCProduction process of line pipe,PVCThe conduit has excellent wear resistance, avoids friction damage caused by pipe laying installation, has a good safety factor, has excellent mechanical strength, aging resistance, chemical resistance and heat resistance, and greatly extendsPVCThe service life of the line tube expands the application field of the product and has a broad application prospect;PVCThe conduit has high mechanical strength and high wear resistance.