Injection Molding
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Defects in wall thickness transition zones of PCTG injection products
Problembeschreibung
Pits or stress cracks appear at wall thickness changes.
Ursachenanalyse
Inconsistent cooling rate and shrinkage at wall thickness changes produce stress concentration.
Lösung
Smoothly transition wall thickness changes; strengthen holding pressure in that zone; optimize design.
Wichtigste Erkenntnis
PCTG wall thickness changes are defect-prone areas.
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