Production & Quality
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PPSU product internal stress cracking
Fenómeno do problema
PPSU products stress crack during use or sterilization.
Análise das causas
PPSU has high modulus, generates internal stress during processing and is relatively sensitive to stress cracking, especially in sterilization environments.
Solução
Increase mold temperature to 160-180°C; anneal at 200-220°C/1-2h.
Conclusão principal
PPSU internal stress control is a long-term reliability requirement.
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