Material Drying
9 مشاهدة
PET Preform Missing Moisture Verification
ظاهرة المشكلة
The process has not changed but hazy bottles appear intermittently.
تحليل الأسباب
Dryer dew point drift, molecular sieve failure or dehumidification system failure; environmental humidity changes make the drying capacity insufficient.
الحل
①Dew point online monitoring and alarm; ②regular regeneration/replacement of molecular sieves; ③clean the drying filter and air duct; ④strengthen verification in high-humidity seasons.
الخلاصة الأساسية
Intermittent haze = drying system state drift.
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