Molds & Tooling
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PPSU holding pressure management
Fenómeno del problema
PPSU holding pressure pressure and time; sink mark and stress balance.
Análisis de la causa
PPSU holding pressure compensates shrinkage; time according to wall thickness; stress influence; gate freezing; weight optimization.; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solución
①Holding pressure optimization; ②time according to wall thickness; ③stress balance; ④weight monitoring; ⑤standardization execution.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusión clave
PPSU holding pressure is a balance of quality and stress; optimization is based on testing; standardization ensures consistency.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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