Processing Machinery
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TPU product high-temperature deformation
Fenómeno del problema
The product softens and deforms in a high-temperature environment.
Análisis de la causa
The heat resistance upper limit of TPU is limited; the use temperature exceeds the material's bearing capacity; 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
①select heat-resistant grades; ②evaluate the use temperature; ③do heat aging tests; ④manage the use range; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusión clave
TPU heat resistance has a material upper limit; high-temperature applications require special selection; 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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