Material Drying
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TPE bubble causes
Fenómeno del problema
Bubbles repeatedly appear in TPE products
Análisis de la causa
Bubble causes: the three routes of moisture, degradation, and air entrainment; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry materials and should be confirmed first during troubleshooting
Solución
Air-shot identification of the three routes; for moisture check drying, for degradation check temperature, for air entrainment check venting; 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, so as to locate effective measures
Conclusión clave
Bubbles are identified and handled by three routes; 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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