Material Drying
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PESU Storage Management
Problem Phenomenon
PESU sealed storage after drying, preventing secondary moisture absorption.
Cause Analysis
PESU resin after drying should be stored in sealed containers; exposure to air absorbs moisture; time limitation; usage management; quality retention.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Sealed containers after drying; ②exposure time management; ③usage plan; ④quality inspection; ⑤storage records.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PESU post-drying management is quality continuation; sealing is a basic requirement; records and traceability ensure execution.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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