Molding Process
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PPO Medical Device Application
Problem Phenomenon
【Problem Phenomenon】Medical devices need transparent or translucent materials that are heat resistant, steam resistant and dimensionally stable
Cause Analysis
PPO has outstanding water and steam resistance and can be used in medical devices; it can replace stainless steel in hot water tanks and exhaust fan mixed packing valves; food-grade grades cover food contact
Solution
Verify PPO adaptability of medical parts according to sterilization method; prioritize PPO series for hot water environment parts; select compliant grades for food contact; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
PPO steam resistance is a medical selling point; replacing stainless steel in hot water environments; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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