Material Drying
6 مشاهدة
PETG '2079851475616104458 sheet bubbles after moisture absorption
ظاهرة المشكلة
PETG sheets produce bubbles during '2079851475616104458 heating, and the products are scrapped.
تحليل الأسباب
The sheet absorbs moisture during storage (humid environment), and at '2079851475616104458 temperature the moisture vaporizes and expands forming bubbles.
الحل
Pre-dry the sheets before use at 60-65°C/2-4h; store in a dry environment <40%RH; store unused sheets in a dehumidifying drying box.
الخلاصة الأساسية
PETG hygroscopicity requires strict storage and pre-drying management.
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!