Production & Quality
6 مشاهدة
PET Preform Storage Deformation
ظاهرة المشكلة
Preforms become elliptically deformed after stacking, and heating is uneven during blowing.
تحليل الأسباب
Preforms creep and deform under stacking pressure and heat (warehouse high temperature); or overfilled cartons squeeze them.
الحل
①Control warehouse temperature; ②carton loading quantity specifications; ③reject deformed preforms; ④first-in first-out.
الخلاصة الأساسية
Preforms also fear heat and pressure.
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