Molds & Tooling
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PP Mold Deposit
Fenómeno del problema
【Problem Phenomenon】PP long-term production causes mold surface deposit and vent blockage
Análisis de la causa
Additive precipitation and deposition; high mold temperature accelerates migration; fine vents are easily blocked; 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
Solución
Regularly clean mold vents; analyze deposits and adjust the formula; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusión clave
PP mold deposit requires regular cleaning, venting is the focus; 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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