Processing Machinery
2 Aufrufe
PMMA Medical Devices
Problembeschreibung
Medical transparent parts crack after sterilization, and craze where wiped with alcohol disinfection
Ursachenanalyse
Alcohol-based disinfectants are a classic cause of PMMA stress cracking; sterilization methods do not match the material; high-stress molded parts fail quickly in chemical environments; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Lösung
①Verify alcohol compatibility for parts in contact with disinfection; ②choose chemically resistant modified grades or alternative materials; ③anneal after molding to reduce stress; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
Alcohol contact in medical scenarios is a hard constraint for PMMA; three layers of protection: verification, modification, and annealing; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!