When the project involves mineral filling, the screwdriver programme must start from the customer ' s real production mission. Vendors of household electricity and daily machines are required to organize slurry powder, calcium carbonate ratios, melting fingers and production into a set of verifiable, calculable and traceable input conditions.

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. Material analysis cannot remain under PPP, ABS or PA names. The specific plate number, the percentage of the product or mineral filling, the flame-retarding system, the water-bearing requirements, the permitted stay time and the recommended processing temperature should be checked. Differences in the sensitivity of viscosity, wear, corrosiveness and shearing may be apparent in the broad categories of the same material, which change the compression ratio, the three-part ratio, alloy and surface treatment.

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 the discussion here is on slurry powder, calcium carbonate ratio, melting fingers and production, which must correspond to the customer ' s current production conditions and cannot be based solely on the maximum values in machine samples.

In the context of this project, it is proposed to adopt the idea of a “dry-resistant surface combined with a stable transmission structure”. First, to determine whether the available data support the choice, then to calculate the volume of reductive, pressure and plasticization, and finally to discuss the geometry, front-end components and material handling of the screws. If the standard formula is able to cover the window, priority should be given to the standard configuration; the risk of a higher filling that would accelerate the fliers and scalding remains, and a dedicated structure is proposed, with an indication of increased costs, delivery periods and expected benefits.

If the above steps are ignored, the most common consequence is that high filling accelerates the wear and tear of the plumes. The problems are often manifested in the trial phase of measuring time instability, insufficient stress residuals, buffer drift, unmelted, black spots, colour differentials or increased wear and tear. Continued increase in temperature, back pressure and turn speed at this time may temporarily improve the appearance, but may increase the shearing heat, material degradation and equipment load.

It is recommended that the client set clear upper and lower limits around plastic production, wear and tear, and the size of the product, rather than simply " running properly". Quantification criteria may include measurement of time fluctuations, extremely poor product weights, number of black dots, change time, hourly production or ton wear and tear, with specific projects choosing indicators that really affect business outcomes. The sales proposal should answer three questions at the same time: why this selection was made, which conditions had changed and which were re-selected, and how the customer validated the results. Clearing these three issues would allow mineral filling to move from a trade in spare parts to a retroactivity technology project.