Material Drying
4 مشاهدة
Sticking of PET during drying
ظاهرة المشكلة
PET pellets stick and agglomerate in the dehumidifying dryer, cannot discharge normally.
تحليل الأسباب
Drying temperature set too high (exceeding PET softening point), temperature control system failure, material stays too long in high-temperature zone, amorphous PET low softening.
الحل
Strictly control drying temperature ≤175°C; calibrate temperature control; avoid long residence (>8h); pre-crystallize amorphous PET first.
الخلاصة الأساسية
PET drying sticking requires strict control of temperature and residence time.
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