Molds & Tooling
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PBT product mold sticking
Problem Phenomenon
Products stick to the core and demolding is difficult.
Cause Analysis
Low mold temperature and large gripping force; insufficient draft angle or rough surface.; when troubleshooting on site, 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 data and should be confirmed first when troubleshooting
Solution
①Appropriately increase mold temperature; ②increase draft angle; ③polish the cavity; ④balanced ejection.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Solve mold sticking from both the gripping and structure ends.; after confirming effectiveness, solidify 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 in the future
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