Molds & Tooling
6 مشاهدة
Stress concentration in PMMA gate area
ظاهرة المشكلة
Stress color is obvious in the gate area of transparent products under polarized light.
تحليل الأسباب
The gate area has fast flow velocity and high orientation; this area cools fast and stress release is insufficient.
الحل
Enlarge the gate to reduce shear; heat the mold in the gate area; anneal to eliminate stress.
الخلاصة الأساسية
The PMMA gate area is a stress concentration point.
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