Material Drying
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TPU Medical Grade Drying
Fenómeno do problema
Medical TPU products dried under ordinary conditions have bubbles and strength problems
Análise das causas
Medical grade TPU has stricter requirements on moisture content and cleanliness, which ordinary drying conditions cannot meet; when troubleshooting on site, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solução
Medical grade follows official guidelines such as Lubrizol: dehumidifying drying dew point -40°C, temperature and time according to grade, moisture content below 0.02%; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusão principal
Medical grade TPU drying is strictly executed according to official guidelines; 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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