Injection Molding
6 مشاهدة
PETG '2079851475616104452 machine nozzle freezing and clogging
ظاهرة المشكلة
During PETG '2079851475616104452, the material at the nozzle freezes and clogs, making normal injection impossible.
تحليل الأسباب
Nozzle temperature low (below the melting temperature), contact between mold and nozzle causes excessive cooling, material cools during long shutdown.
الحل
Increase the nozzle temperature to 240-250°C; reduce the contact area between the nozzle and the mold (insulation pad); manually purge before shutdown.
الخلاصة الأساسية
PETG nozzle freezing is a common problem of temperature control and thermal management.
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