Material Drying
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TPU Online Moisture
Fenómeno del problema
Drying abnormalities can only be found when bubbles appear in the product
Análisis de la causa
Offline sampling inspection lags behind; 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
Solución
Online moisture meter at the dryer outlet; alarm and stop supply when exceeding the limit; 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
Conclusión clave
Online monitoring moves the quality gate forward; 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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