Injection Molding
9 مشاهدة
Frequent nozzle clogging during injection
ظاهرة المشكلة
During injection, the nozzle discharges poorly or even becomes completely clogged
تحليل الأسباب
Glass fibers aggregate and bridge at the nozzle opening; the nozzle orifice is too small to pass melt containing long fibers; the nozzle temperature is insufficient causing excessive melt viscosity
الحل
Increase the nozzle orifice to ≥5mm; increase the nozzle zone temperature to reduce melt viscosity; use a short nozzle design to reduce the runner length where fibers aggregate
الخلاصة الأساسية
Long fiber materials have special requirements for nozzle size and structure
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