Extrusion & Post
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HDPE extrusion head pressure fluctuation
Problembeschreibung
The head pressure gauge needle fluctuates, and product dimensions fluctuate accordingly.
Ursachenanalyse
Unstable feeding, screw wear, screen blockage, or temperature fluctuation cause melt pressure pulsation.
Lösung
①Check feeding and hopper cooling; ②measure the screw gap; ③replace the screen; ④stabilize temperature control.
Wichtigste Erkenntnis
Tracing pressure fluctuation: material, screw, screen, temperature.
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