Injection Molding
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HDPE melt pressure
Problembeschreibung
HDPE '2079851475616104452 melt pressure fluctuation causes unstable weight
Ursachenanalyse
Melt pressure fluctuation changes the filling amount of each shot; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Lösung
Closed-loop melt pressure monitoring; check the non-return ring; lock the process parameters; 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
Weight stability relies on melt pressure and non-return ring management; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar future problems
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