The reverse-ring card debarment should first be checked for locations directly related to plastic quality and equipment loads, and therefore design, procurement, switch and maintenance personnel should use the same set of evaluation criteria. At its core is that the antireverse cardiac lag may occur in the direction of opening or closing, requiring a distinction between plasticization and injection performance. Common sources include carbon accumulation, foreign matter, cycling deformation, surface lacerations, small gaps and heat expansion mismatches. 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. Parameter decision-making can be based on a failure push: short-shot, black spot, product fluctuations and overloading are listed first, and then the geometrics are identified to block the failure chain. Nominal specifications are therefore only the starting point, and the final conclusions must serve the actual resin, product and volume rhythm.

When customizing around "where to check for back-ring debarment" the equipment model, original screws and material drums are first collected, driving capacity, resin number and filling system, single mass, cycle and existing defects. The specific selection principle for this topic is that the order of examination should be from process phenomena, sealing test, empty-fired action to stop-off, avoiding direct blinding. Precision is recommended to track the mass, critical size and pressure exchange points of the product at the same time in order to distinguish between the fluctuations in plasticization and the effects of the mould or hydraulic system. 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 in need of protection against the failure of the subject is the continuation of high-pressure operations that may pull the front end of the tube, break the screwdriver or cause the mass of the product to lose control. Bad pictures are bound to the same pattern as the equipment curve and raw material records, otherwise only the defective name cannot be judged to have been caused by a screw. 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 repertoireable approach can be used to verify “places to be checked when the antiretroring card is detached”: to record the choreography, free-sliding, size and residues after detachment, and to trace the source of the cleaning and material. Receiving and inspection should not end when the equipment is not in thermal equilibrium, and should cover typical use links such as start-up, steady state, suspension of re-opening and refuelling. 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.