Processing Machinery
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PEI Multiple Processing Stability
Problem Phenomenon
Evaluation of PEI performance retention after recycling and reprocessing; thermal stability is good but times management is still needed.
Cause Analysis
PEI resin has good thermal stability and can be processed multiple times without decomposing; but each heat history still accumulates; recycling ratio and times; performance verification tracking.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
①Manage recycling times and ratio; ②use after performance verification; ③control recycling for critical parts; ④heat history records.; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
PEI multiple processing stability is a cost advantage; but management is still indispensable; verification data supports decisions.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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