Material Drying
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TPU Drying Time Management
Problembeschreibung
To rush output, TPU drying time was compressed to 2 hours and the defect rate soared
Ursachenanalyse
TPU moisture diffuses slowly from inside the particles; with 2 hours of drying the core moisture is not fully removed; when troubleshooting on site, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Lösung
Drying time guaranteed at 3-4 hours; extend when the loading amount is large; subject to measured moisture content; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
TPU drying time cannot be compressed, and is judged by actual measurement; 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
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