Production Process of PVC Pipe PVC pipe is made by mixing PVC resin with additives such as stabilizers and lubricants, and extruder molding after pelletizing. It can also be extruded with powder at one time. PVC pipe has good chemical resistance and insulation. It mainly transports various fluids and is used as wire casing. PVC pipe process The PVC pipe is formed by using SG-5 PVC resin, stabilizers, lubricants, fillers, pigments, etc. These materials are appropriately processed and kneaded according to the formula. If the pipe is extruded by a PVC single screw extruder , the kneaded powder is granulated and then extruded; if a twin-screw extruder is used, the powder can be directly formed. Process conditions and control In the production process, since PVC is a heat-sensitive material, even if a heat stabilizer is added, it can only increase the decomposition temperature and prolong the stabilization time without decomposition. This requires that t...