Production & Quality
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PPSU product internal stress cracking
Problembeschreibung
PPSU products stress crack during use or sterilization.
Ursachenanalyse
PPSU has high modulus, generates internal stress during processing and is relatively sensitive to stress cracking, especially in sterilization environments.
Lösung
Increase mold temperature to 160-180°C; anneal at 200-220°C/1-2h.
Wichtigste Erkenntnis
PPSU internal stress control is a long-term reliability requirement.
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