Processing Machinery
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PPO Product Weight Fluctuation
Fenómeno del problema
[Problem Phenomenon] PPO product weight drifts over time, with dimensions changing synchronously
Análisis de la causa
Cushion fluctuation, check ring wear and unstable metering change the actual shot volume; high-viscosity materials are more sensitive to check ring sealing; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solución
Check cushion 4-10mm stability; check ring wear test; include metering repeatability in equipment inspection; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusión clave
For PPO weight fluctuation check the cushion and check ring; metering stability is fundamental; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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