Molds & Tooling
5 görüntüleme
PVA product twist deformation
Sorun Belirtisi
PVA product twisted 2-3°/100mm along the axis
Neden Analizi
Asymmetric cooling causes shrinkage differences on each face producing a twisting moment; gate position produces asymmetric flow orientation
Çözüm
1) Symmetric cooling design to ensure uniformity on each face; 2) Symmetric gate arrangement; 3) Annealing to release twisting stress
Temel Çıkarım
Twist deformation is caused by asymmetric cooling; symmetric cooling is the key
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