Molds & Tooling
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Unbalanced filling of PET multi-cavity molds
Problembeschreibung
The filling degree of each cavity of the PET multi-cavity mold is inconsistent, with short shots in some and overflow in others.
Ursachenanalyse
Runner system design is unreasonable with uneven flow resistance; gate sizes are inconsistent (machining deviation); mold temperature distribution is uneven.
Lösung
Adopt balanced runner design (natural balance or rheological balance); correct each gate size; equalize temperature in each zone; optimize with mold flow analysis.
Wichtigste Erkenntnis
Balanced filling of PET multi-cavity molds is a basic requirement of precision '2079851475616104452.
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