With regard to the special screw trigger, clients often ask first for price or term, but the equipment programme team should first check for wear and tear, slow plasticization, black dots, poor refining or special material. Only by quantifying these conditions can the standard screws have an interpretable boundary with the choice of a dedicated screw.

It's not absolutely good or bad. Standard schemes are appropriate for simple work, wide material windows and priority projects; the value of a dedicated structure is clear when materials are corrosive, corrosive, hot, sensitious or production requirements exceed the generic boundary. The judgement must be based on data and failure patterns. Calculates the nominal value to be converted to the actual condition. The machine often uses PS as a reference for the gel weight, which should be revised by density when using other raw materials; the weight of the product should be added to the main course, traffic separation and a reasonable buffer. The larger the diameter of the screw, the greater the theoretical capacity, but the pressure of injections per unit area under the same hydraulic pressure or servo system will decline and the resolution of the measurement of the small amount of the aerosol may also be variable.

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. The focus of discussion in this paper is on wear and tear, slow plasticization, black dots, distillation or special material, which must correspond to the customer ' s current mass production conditions and not be limited to the maximum values in machine samples.

An implementable programme is designed as a problem evidence-driven dedicated structure. 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.

There is a need for special vigilance to continue using the generic screws, which can be repeated and cut off. Many of the post-sale disputes arise from inconsistencies between the design input and the actual production conditions, such as the customer ' s replacement of the raw material number, the increase in the return rate or the transfer of the screw to another set of moulds, while still requiring the maintenance of the original acceptance results. The configuration of the boundary and change management should therefore be included in the technical document.

Ultimately, the goals should be achieved through the improvement of shortcomings, the life-cycle and the life-long programme. If the result fails to meet the standard, each adjustment and result shall be recorded in five directions, by raw material, equipment, molds, process and screw, so as to avoid the loss of causal judgement by modifying multiple parameters at the same time. For aluminum manufacturers and vendors, professionalism is reflected in the ability to translate the client language into engineering parameters and to interpret the programme into production, quality, maintenance and cost results that the client can understand. The establishment of standard processes around dedicated screw trigger conditions will not only improve the accuracy of this selection, but also result in reusable machine and application databases.