Extrusion & Post
10 Aufrufe
TPU Extrusion Shear
Problembeschreibung
The mechanical performance of TPU extruded products is lower than expected
Ursachenanalyse
Excessive extrusion shear breaks TPU molecular chains and reduces performance; when troubleshooting on site, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry literature and should be confirmed first during troubleshooting
Lösung
Low-shear design of the extrusion screw; speed control; actual melt temperature measurement; 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
TPU extrusion should follow a low-shear route; 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 problems in the future
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!