Molds & Tooling
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Imbalance of PP multi-cavity
Fenómeno del problema
The product weight and dimensions of each cavity of a multi-cavity mold are inconsistent.
Análisis de la causa
Runner imbalance makes the filling conditions of each cavity different; differences in cooling efficiency also cause cavity-to-cavity differences.; during on-site investigation, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solución
①Optimize the runner balance layout; ②monitor by weighing cavity by cavity; ③balance the cooling of each cavity; ④establish quality archives by cavity position.; after adjustment, continuously sample and verify the effect, and resume mass production after confirming stability
Conclusión clave
Multi-cavity consistency relies on the dual balance of runners and cooling; managing data by cavity position is the foundation of refinement.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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