Molds & Tooling
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ASA Demolding Mold Sticking
Problem Phenomenon
【Problem Phenomenon】ASA products stick to mold and get pulled damaged, ejection deformation
Cause Analysis
Large shrink-fit force, insufficient draft angle, wrong cavity polishing direction or excessive holding pressure cause mold sticking; deep-cavity thin-walled parts high incidence; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience
Solution
Check draft angle and polishing direction; reduce holding pressure; increase ejection area to balance ejection force; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA mold sticking first check draft angle and polishing, excessive holding pressure also causes mold sticking; 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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