Injection Molding
7 مشاهدة
EVOH '2079851475616104452 demolding difficulty
ظاهرة المشكلة
EVOH injection molded products have large demolding force, product deformation or strain marks, demolding time accounts for 30% of the cycle
تحليل الأسباب
Large adhesion between EVOH and mold cavity; insufficient draft angle <0.5°; insufficient cooling time, product demolded before fully solidified; unreasonable ejection mechanism design
الحل
1) Increase mold draft angle to 1-2°; 2) Extend cooling time so the product is demolded after full solidification; 3) Polish mold surface to Ra<0.2μm; 4) Increase ejection area using large-area ejector plate; 5) Spray release agent (temporary solution)
الخلاصة الأساسية
Demolding difficulty is caused by adhesion and insufficient mold design; increasing draft angle is the fundamental measure
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!