Processing Machinery
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HDPE Short Shot
Problembeschreibung
HDPE thin-wall products are incompletely filled
Ursachenanalyse
HDPE flowability is average, making thin-wall long-flow-path filling difficult; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Lösung
Take upper limits of melt temperature and mold temperature; increase injection speed; enlarge the gate; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Wichtigste Erkenntnis
HDPE thin-wall short shot relies on temperature, speed, and gate; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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