Molds & Tooling
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PVC Mold Sticking
Fenómeno do problema
PVC products stick to the mold and get scratched during demolding
Análise das causas
Mold temperature too high or insufficient draft angle; PVC has certain adhesion to the mold surface; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Lower mold temperature to 30-50°C; check draft angle; polish the mold surface; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusão principal
For PVC mold sticking, lower the mold temperature first; 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 in the future
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