Molds & Tooling
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TPE Product Ejection Deformation
Fenómeno del problema
Products deform or even tear during demolding.
Análisis de la causa
TPE is soft and deforms when ejection force is concentrated; more likely to occur when cooling is insufficient and demolding temperature is high.; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience
Solución
①Extend cooling to improve demolding strength; ②increase the ejection area to balance force; ③optimize ejector pin layout; ④appropriately reduce mold temperature.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Ejection of soft materials must disperse the force; sufficient cooling is the foundation.; 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 subsequent similar problems
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