To determine why unmelted particles appear when the long-range ratio is insufficient, the first is to place structural dimensions, material behaviour and actual production loads in the same logical chain. At its core is the reduction of the particle preheating and melting time due to insufficient effective length, so that the solid bed is still not completely lost when entering the measurement end. An increase in the temperature of the drum only increases external heat transfer and does not entirely replace reasonable cutting and membrane renewal. The long-range ratio is only a geometric entry, and what really determines is the effective length, distribution of the functional segments, actual production and material heat history. If the same platform is to cover a variety of resins, the three extremes that are the most difficult to melt, the most afraid of cutting and the most susceptible to degradation are applied separately. Nominal specifications are therefore only the starting point, and the final conclusions must serve the actual resin, product and volume rhythm.

When customizing around "Why are unmelted particles easily present when the long-range ratio is insufficient", first collects the size of the equipment model, the original screw and the material drum, the driving power, the resin plate number and the filling system, the sum of the single model, the cycle and the existing defects. The specific selection principle for this topic is that, if unmelted material arises after production has increased, the structural capacity, velocity and back pressure should first be confirmed beyond the window. The specimen shall keep the batch of raw materials, the baking conditions and the mold cooling, and shall determine the spiral reaction by measuring the time, peak twist and actual melting temperature. The technical agreement should include quantifiable provisions for size benchmarks, key communications, material status and acceptance methods so that new, old and subsequent restorations can be compared under the same criteria.

The most important defence against the failure of the subject is that continued warming may cause degradation of outer materials, while the particle core remains unsmelted, creating black spots alongside white cores. Three types of tests can be performed without load, steady state mass and seal, with a combination of phenomena to reduce the range of geometry, wear or temperature control problems. For on-site processing, only one main variable is changed each time and the measurement time, twist, melting temperature, mat, injection pressure and product weight are aligned to the same pattern. If production is to be sustained by excessive temperature, turn speed or back pressure, the use of parameters to mask structures, wear or collage should be discontinued.

This replicable option could be used to verify “the vulnerability of unmelted particles in the absence of a long-range ratio”: the endpoint of the melting is to be determined by the use of a stop-off pump, a melting filter, a real melting temperature and a plastic mass ladder. When the production line is stabilized, the parameters of the equipment are locked and the version number is formed, the unrecorded modulation opportunities undermine the comparison conditions and the contribution of hardware optimization cannot be judged. Inquiries to suppliers should also be accompanied by information on resins and fillings, risk of flame retardation or corrosion, total weight of products and fluids, photographs of available screws and equipment curves. The programme is considered to have a stable engineering value when the detection data, the good product rate, the timing of the switch and the unit cost of the eligible goods are improved.