PP Injection Cycle Fluctuation Material Shortage

Fenómeno do problema

Short shots and normal parts alternate.

Análise das causas

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

Solução

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

Conclusão principal

For alternating shortage, check the metering system.

PP;short shot;metering;check ring;bridging

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