Injection Molding
13 مشاهدة
Yellowing in PCTG '2079851475616104452
ظاهرة المشكلة
The product color changes from transparent to yellow.
تحليل الأسباب
The processing temperature is too high, causing thermal degradation, the residence time is too long, the raw material is insufficiently dried, and too much regrind is used.
الحل
Control the temperature ≤250°C; shorten the residence time; fully dry; control the regrind ≤25%.
الخلاصة الأساسية
PCTG yellowing is a signal of degradation.
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!