[Scene definition] Profibre fibre-fibre and surface rough screw selection improvements are based on the real production scene of the plant and cannot be based solely on the diameter of the screw or the price quoted. It is recommended that the frequency of defects, time periods and changes in process parameters be first sorted out and then that baselines be established for each of the three phases of start-up, stable production and refuelling. The aim of this step is to establish comparable old programme benchmarks so that subsequent screw changes can be supported by data.

The most easy to ignore on this topic is the boundaries of screws, cylinders, reversible rings and molds. Plants should examine the remaining plasticization capacity based on order peaks rather than average annual production, and first identify acceptable ceilings for quality defects before discussing speed and energy consumption targets. Vendors can make retroactive trade-offs between interoperability, earmarking and cost when there are clear values for product weight, daily production, customer quality caps and allowed stop times.

The main line of the case [design focus] is to pre-empt the causes of drying, temperature control and molds with evidence. In geometric and material programmes, the driving twist, the allowing of turn and the screw cores should be checked so that the production capacity does not increase at the expense of mechanical safety, while the driving, the allowing of turn and the screw core should be checked so that the capacity does not increase at the expense of mechanical safety. The final solution would also need to be compatible with the wear and tear of the cylinder, the drive, the physical velocity and the current cleaning process, and would not cover up co-operation or process problems with a single high-level material.

The new [comparison validation] programme proposes to operate for at least 24 consecutive hours, with a 30-mode extraction for each stabilization phase, recording the replacement time, the amount of excess waste and the first eligible time. The test shall be co-signed by the production, quality and equipment triangulations, which shall not allow for a single sector to be independently shaped, and shall be kept under normal ceiling loads for sufficient time to observe the twisting, temperature and measurement drift. If only the first one is checked, it is easy to miss the risks associated with heat drifting, material stoppage, reversal loop return and prolonged wear and tear.

When the [stabilized production] spiral is shaped, the only asset-numbered associated drawings are applied, repair, go on board and take down records, and a metallic alien separation and magnetic inhalation system is put in place, as well as a post-normal examination of the prune damage. The time of storage, back pressure, screw velocity, noise and mass of the product shall be recorded in a uniform manner in the shift. When the above indicators change at the same time, the mechanical gaps and the state of the raw materials should be checked before the process is adjusted to avoid the use of parameters to compensate for hardware degradation.

The cost table [comprehensive cost] could not simply be a screw price, and single-unit energy consumption should be analysed in conjunction with storage time to avoid looking only at the totals of the tables while ignoring output differences, and to calculate the cost of inventory, maintenance and rust-proofing for the back-up screws, compared to the cost of emergency delivery. It is recommended that the cost per 10,000 eligible items be exported simultaneously, the cost per 1,000 operating hours and the estimated number of return months. When new programmes reduce waste, refuelling or sudden shutdowns, higher initial inputs are often offset during production.

The [Closed Ring Management] will eventually include drawing numbers, screwdriver materials, heat treatment, critical dimensions, portable tubes, process windows and acceptance data in the curriculum vitae cards. It is proposed to establish a record of refuelling weights, cleaning time and first qualifying time, with a temperature-preservation time for cold-starting and a rectangulation allowed to avoid cold-temperature forced storage. When there is a significant change in the feedstock formulation, retrospective ratio, product structure or target node, the applicable boundary of “breath-fibre fibres and rough-surface screw-selection” should be reassessed, rather than defaulting that the old conclusion is permanent.

Topic: Quality diagnosis and selection