Extrusion & Post
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PVC Die Head Temperature
Problembeschreibung
PVC profile extrusion local output speed inconsistent
Ursachenanalyse
Uneven die head temperature makes melt flow resistance differ in zones; during on-site troubleshooting, verify item by item according to this mechanism, 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
Die head temperature zones calibrated; output uniformity adjusted; die head regularly cleaned; 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
Die head temperature uniformity is the basis of profile quality; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems later
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