PP Injection Cycle Fluctuation Material Shortage

Problembeschreibung

Short shots and normal parts alternate.

Ursachenanalyse

Unstable feeding (bridging), check ring wear, and cushion fluctuation cause different shot volumes per cycle.

Lösung

①Check hopper feeding; ②measure cushion fluctuation; ③check the check ring; ④stabilize back pressure.

Wichtigste Erkenntnis

For alternating shortage, check the metering system.

PP;short shot;metering;check ring;bridging

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