Material Drying
7 조회수
Sticking of PET during drying
문제 현상
PET pellets stick and agglomerate in the dehumidifying dryer, cannot discharge normally.
원인 분석
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.
해결 방법
Strictly control drying temperature ≤175°C; calibrate temperature control; avoid long residence (>8h); pre-crystallize amorphous PET first.
핵심 요약
PET drying sticking requires strict control of temperature and residence time.
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