Molds & Tooling
7 مشاهدة
Product shrinkage rate high and fluctuating
ظاهرة المشكلة
Large dimensional deviations, with shrinkage rate fluctuating irregularly between 1.2-1.8%
تحليل الأسباب
Inconsistent cooling rates in different areas cause crystallinity differences; mold temperature fluctuations cause shrinkage rate changes; inconsistent holding switchover timing
الحل
Stabilize the mold temperature at 180-200°C±2°C; finely adjust the holding switchover point and holding pressure curve; ensure sufficient cooling time
الخلاصة الأساسية
PEEK shrinkage rate is highly sensitive to mold temperature and cooling rate
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