Injection Molding
8 مشاهدة
POE internal stress concentration severe
ظاهرة المشكلة
POE product internal stress >15MPa causing cracking during storage
تحليل الأسباب
Injection speed too fast, orientation stress large; uneven cooling freezes thermal stress; improper gate position concentrates flow orientation
الحل
1) Reduce injection speed to reduce orientation; 2) Uniform mold temperature to reduce thermal stress; 3) Anneal 80°C/4h to release stress; 4) Optimize gate position
الخلاصة الأساسية
Internal stress is caused by fast injection and uneven cooling; reducing speed, uniform cooling and annealing are key
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