Injection Molding
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Insufficient Bonding Force in PBT Two-Color '2079851475616104452
Problembeschreibung
When PBT is two-color injection molded with other materials (such as TPE), the bonding force between the two layers is insufficient.
Ursachenanalyse
The two materials are incompatible or the interfacial bonding force is weak; the temperature of the first-shot part is too low, so a molten bond cannot be formed during the second injection.
Lösung
Select a compatible second-shot material; keep the first-shot part at a high temperature; consider interfacial bonding in the mold design.
Wichtigste Erkenntnis
PBT two-color '2079851475616104452 requires material matching and temperature management.
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