Molding Process
2 مشاهدة
MP surface stress whitening
ظاهرة المشكلة
MP product stressed regions show surface stress whitening, affecting appearance and strength
تحليل الأسباب
MP under local stress, molecular orientation causes refractive index difference, whitening; product internal stress concentration regions
الحل
1) reduce injection speed to reduce orientation stress; 2) annealing at 80°C/2h to release stress; 3) product design avoiding 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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