Molding Process
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Anisotropy of shrinkage rate
Problembeschreibung
The shrinkage rate difference in different directions is >0.5%
Ursachenanalyse
Semi-crystalline polymers crystallize differently in the flow direction and the perpendicular direction
Lösung
Uniform mold temperature, extended holding pressure, and symmetric gate arrangement
Wichtigste Erkenntnis
The shrinkage anisotropy of semi-crystalline materials is significant
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