High-density fillings appear to be a conventional device selection and are actually prone to deviations due to the fact that stack density, wear, twist and mobility are not assessed at the same time. For special retrofit manufacturers, the right approach is to establish a baseline of the conditions before discussing the specific configuration.

Additions and fillings change the demand for currents, frictions, wear, corrosion and mixing. The configuration is not limited to additions, but also focuses on particle form, carrier, fibre length, decomposition products and batch fluctuations; where necessary, the screws, drums, retroring, nozzles and dry delivery systems are evaluated together. Technical communication distinguishes between three types of objectives that must be met, desired improvement and acceptable. It is necessary to meet the hard boundary of the item for the determination of equipment and screws, and it is hoped that the improvement item will be used for the comparison of standards and specialized programmes, while the acceptable item will help to control costs and deadlines. This would avoid stacking all requirements on a screw and would make it easier for clients to understand the real value of each configuration.

It is recommended that customer information be broken down into five groups: products and moulds, raw materials, platforms, process objectives and existing problems. Product end logs of single weight, flowway, number of caves, wall thickness and appearance levels; ratio of feedstock end recorder number, melting finger, filling, flame retardation and retrofitting; terminal logs of tonnage, voltage, screw diameter, maximum travel, injection pressure and plasticization. All data are sourced and are marked, drawn, physical, measured or estimated by clients. The focus of discussion in this paper is on build-up density, wear-up, twist-and-mobility, which must correspond to the customer ' s current production conditions and not be limited to the maximum values in machine samples.

The implementable option is a school core-driven twist and the introduction of high-resilient structures. The quoted documents should include both the applicable raw materials, the range of recommended voltage, the permitted turn-off and back pressure, the size of the interface, the material and thermal treatment, and the need for re-evaluation when marking subsequent changes to the material or the mould by the client. This would prevent the use of earmarked programmes in completely different conditions.

The cost of the misconfiguration is not only the screw itself, but also the cut-off, the waste of raw materials, the testing of molds, the delay in delivery and the credibility of customers. Establishing preventive measures around volume-only accounting would underestimate the twisting and mechanical load, which is more economical than re-routing after problems have arisen; the vendor could then move from a mere offerer to a partner capable of taking on technical screening.

At the time of acceptance, it is recommended that the main indicator be the twisting peak, feed and wear, and that the temperature, screw velocity, back pressure, measurement position, buffer position, injection peak pressure and continuous sample weight be simultaneously recorded in the drums. At least three reasonable process points, low, medium and high, are covered to confirm that the programme is not effective under a single parameter. The continuous accumulation of project data for high-density fillings will allow the equipment manufacturer to gradually establish a package, a trade package and an aircraft-type menu to allow sales to quickly identify general and special conditions, and to submit a truly complex project to the application engineer for evaluation in a timely manner.