Molds & Tooling
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TPU Surface Tackiness
Fenómeno del problema
TPU product surface is sticky
Análisis de la causa
Mold temperature too high or demolding too early, the soft TPU surface is not yet set; when troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience; this mechanism has been repeatedly verified by industry materials and should be confirmed first during troubleshooting
Solución
Lower mold temperature; extend cooling time; use release agent as an aid; 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
For surface tackiness, check mold temperature and cooling; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems later
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