In the screw selection or failure analysis, how important the cut-off end-end plane level is for the sealing is often simplified into a specification value, but in practice it needs to be explained in conjunction with the full performance. The core is a key seal and payload transfer area for the end-of-the-ring end and the co-cooperating side, and the plane level determines the continuity of exposure. The ideal exposure belt should be stable and evenly distributed, with local heights subject to excessive pressure and rapid pull. The screwhead and the reversible ring are at the front end of high pressure, high temperature and fast-forward, and their mobility, sealing, strength and cleanness must be met simultaneously. The design evaluation is to distinguish between “scales can be installed” and “processes can be stabilized”, the former only resolve mechanical interfaces, and the latter relate to plasticization efficiency and product quality. Nominal specifications are therefore only the starting point, and the final conclusions must serve the actual resin, product and volume rhythm.

When customizing around “how important the end-of-ring plane level is for the sealing”, first the equipment model, the original screw and the material drums are collected for measuring size, driving capacity, resin number and filling system, single mass, cycle and existing defects. The specific selection principle for this topic is that both processing and repair should control the plane level, parallelity, roughness and the tip of the edge. The same mass and the same cooling time should be used for the test to record the amount of plasticization and energy consumption at a low, medium and high three-stage rotation, respectively. 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 needed failure to prevent the subject is the fact that the tipping, gutter marks or carbon accumulation form a leakage channel that changes the sealing properties with pressure. 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 approach can be used to verify “how important the end-of-ring plane level for sealing”: a combination of colour exposure, plane scale measurement, micro-checking and sealing tests. The screws, drums and reversible rings are proposed as side acceptances, since single-sizes do not represent a suitable axis of the combination gap with the heat. 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.