Molding Process
2 مشاهدة
EEA Surface Stress Whitening
ظاهرة المشكلة
Stress whitening on the surface of stressed areas of EEA products, affecting appearance and strength
تحليل الأسباب
Under local stress, EEA molecular orientation causes refractive index differences and whitening; internal stress concentration areas of the product
الحل
1) Reduce injection speed to reduce orientation stress; 2) Annealing treatment at 80°C/2h to release stress; 3) Product design to avoid stress-concentrating sharp corners
الخلاصة الأساسية
Stress whitening is caused by orientation and internal stress; reducing orientation and annealing are key
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