Material Drying
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PPO Medical Device Parts
Fenómeno del problema
[Problem Phenomenon] Medical devices need sterilizable, dimensionally stable structural materials
Análisis de la causa
PPX7110 is recommended for medical care; PPO is resistant to water steam and can be repeatedly sterilized; low moisture absorption ensures dimensions after sterilization; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solución
Select PPO/PPX grades for medical parts according to the sterilization method; verify performance retention after repeated sterilization; evaluate biocompatibility according to regulations; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusión clave
PPO for medical devices is resistant to steam sterilization, and dimensional stability is the guarantee of precision; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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