Injection Molding
4 görüntüleme
EVOH injection warpage deformation
Sorun Belirtisi
EVOH injection molded product warps 2-3mm/100mm after demolding, flatness not meeting standard
Neden Analizi
EVOH shrinkage rate is large and mold temperature uneven, causing shrinkage differences in all directions; improper gate position with uneven release of flow orientation stress; insufficient cooling time
Çözüm
1) Increase mold temperature to 40-60°C to reduce temperature differences; 2) Increase holding pressure to 50-70MPa; 3) Optimize gate position for uniform flow; 4) Extend cooling time; 5) Annealing treatment to release residual stress
Temel Çıkarım
Warpage is caused by shrinkage differences and orientation stress; uniform mold temperature and holding pressure are key
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!