Material Analysis
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ASA material batch switching
Problembeschreibung
[Problem phenomenon] ASA process window drifts after batch change or supplier change
Ursachenanalyse
Different batches have melt index and molecular weight distribution differences affecting flow; changing suppliers (Luran S/Geloy etc.) grade systems differ, process must be recalibrated
Lösung
Batch change performs melt index quick check; supplier change re-trial mold calibration; incoming inspection included as process adjustment basis; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Wichtigste Erkenntnis
ASA material change first quick check melt index, supplier change recalibrates process; 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 subsequent similar problems
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