Processing Machinery
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PSU Medical Device Discoloration
Problem Phenomenon
PSU medical devices change color after sterilization or use; customers complain about inconsistent appearance; traced to multiple influencing factors.
Cause Analysis
PSU sterilization methods affect color stability; ultraviolet radiation discoloration; heat history accumulation; batch formulation fluctuations.; During on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based solely on experience
Solution
①Verify color stability by sterilization method; ②Store away from light; ③Control heat history; ④Batch color management.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
The color of PSU medical parts is a quality signal; sterilization method selection has an influence; batch management ensures consistency.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence
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