The difference between the screw type of PE-heavy wall and thin membrane products is based on the actual production scene of the plant and cannot be based solely on the diameter or price of the screw. It is recommended that resin viscosity, heat sensitivity, additives and retrospect ratios be first collated and then observed at a single, hourly and three scales per 10,000 items. 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 is the risk of degradation of plastic windows and materials. Plants should divide needs such as appearance, size, strength and odor into necessary and optimized items, with red lines for quality and equipment loads for key products. 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 in this case is the geometry of the screws with real cards and formulas. In geometry and materials programmes, the matrix, alloy layer and surface treatment should be selected on the basis of grinding, corrosive and heat loads; and the measurement segment should be synchronized with the required back pressure, without excessive back pressure. 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-valid] program proposes a minimum of 12 hours of continuous operation, with a 60-module extraction for each stabilization phase, to record the temperature of the entropy, the size of the product, and the single energy consumption. The test shall be conducted immediately after the birth, in order to identify the risks associated with the acoustic, friction and metal powder, and immediately after the birth, in order to identify the risks involved. 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, a single asset-numbered associated drawing, repair, up and down is used to record, and trend maps are created for the perforation, the reverse ring gap and the inside of the cylinder. 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 [integrated cost] cost statement cannot be simply a screw price, the procurement price should be annualized according to the expected useful life, the low-price option should be prevented from being frequently replaced at a higher cost, and the test moulds, cleaning materials, transitional materials and bad goods should be accounted for in real terms. 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 recommended that tiered accounting by batch of raw materials prevent the miscalculation of formula fluctuations as a matter of equipment, while combining cleaning, measurement, photographing and sampling in shut-off windows to reduce double-down. When there is a significant change in the feedstock formulation, retrospective ratio, product structure or target node, the applicable boundary of the “heavy wall of the PE” and the screw selection of thin membrane products” should be reassessed, rather than defaulting that the old conclusion is permanently valid.

Title of article: Guidelines for the selection of a plastic factory for end-of-service reference