Molds & Tooling
2 views
TPE Product Ejection Deformation
Problem Phenomenon
Products deform or even tear during demolding.
Cause Analysis
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
Solution
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
Key Takeaway
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
Was this helpful?
0 people found this helpful
Thank you for your feedback!