Material Drying
3 Aufrufe
Low ultrasonic welding strength of PET injection molded parts
Problembeschreibung
The strength of PET injection molded parts after ultrasonic welding is insufficient, and the weld line easily breaks.
Ursachenanalyse
Improper welding parameters (amplitude, energy, time unsuitable); product moisture absorption affects welding; energy director design is poor.
Lösung
Optimize welding parameters; dry the products before welding; optimize energy director design (triangular cross-section).
Wichtigste Erkenntnis
PET ultrasonic welding requires dry products and optimized parameters.
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