Processing Machinery
4 görüntüleme
POM nozzle temperature
Sorun Belirtisi
POM nozzle drooling and cold material blockage occur alternately
Neden Analizi
POM melt has low viscosity and drools easily, while a slightly lower temperature causes rapid solidification and blockage, so the nozzle temperature window is narrow; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Çözüm
Set the nozzle temperature 5°C lower than the melt; use a needle-valve self-locking nozzle; suck back 2-3mm; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Temel Çıkarım
The narrow-window nozzle temperature is combined with a self-locking structure; after confirming effectiveness, fix 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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