The evaluation of “why low-cutting temperature and plasticization” of PVC materials should be accompanied by three sets of evidence on the state of particles, the behaviour of the molten and the quality of the finished product. The key mechanisms of this theme are: the PVC thermal stabilization window is narrow, relying on formula stabilizers and being highly sensitive to cutting and stopping. While general plastics are maturely processed, the differences in crystallization, phase structure, thermal stability and additives can still significantly change plasticizing windows. Therefore, the name of the material and the recommended setting can only be used as a starting point, and the actual judgement is to return to the plate number, water, filling and assistor, the single total quantity, cycle, screw structure and product requirements to confirm whether the temperature, cut and stay of the material in the equipment is safe.

At the test-model or volume-import phase, an input list should be established around “why low-cutting temperature and plasticization of PVC material”, including feedstock suppliers and batches, technical data sheets, dry conditions, colour mother and retrofit ratios, equipment and screw specifications, product and fluid weight, mold temperature and existing defects. It is recommended that first the batch of materials be fixed, the oven state and the mold cooling, and then that the cooling of the drums be recorded, the timing of measurements, the screw twist, the back pressure and the injection peak pressure. The main risks to the subject are that local overheating will take off HCl, colour change and corrosion, and that the cleaning machine will continue to produce black spots. Parameters must be recorded in a specific pattern to distinguish material from equipment from operational changes.

Control methods should not begin with blindly increasing temperature or pressure, but should be based on "substance state - feed drying" The sequence of screw plasticization - nozzles and fluids - product results. For high filling and flame retardant materials, temperature, shearing, corrosive and wear must be jointly assessed, and the flow of the melting alone is prone to underestimation of life risks. The site adjusts only one main variable at a time, while observing the actual melting temperature, measuring time, screw twists, mats, injection pressure, product weight, colour, scent and critical dimensions. If production can only be sustained by extreme parameters, the use of a switch to cover the material or hardware boundary should be discontinued.

The validation of “why low-cutting temperature and plasticization” of PVC materials suggests a repeatable approach: monitoring of twists, actual temperature, colour, smell, presence and corrosive traces. If the result is established only in a small number of samples, it should be extended to continuous production and cover shifts, patches and short stop start-ups. The technical agreement between the supplier and the plant shall state the material, the sampling method, the detection project, the permitted scope and the change notification requirements. The plasticization programme can only be considered to have long-term quantitative value if the product ' s probabilities, performance, cyclicality, energy consumption and maintenance costs are met in a continuous production process.