Material Drying
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PA66 online moisture monitoring
Fenómeno do problema
Drying effect can only be spot-checked afterward, unqualified material already flowed into production causing batch waste
Análise das causas
Offline spot checks lag, drying abnormalities cannot be found in real time, many defective products already produced when problems are found; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solução
Install online moisture meter at drying line outlet with 0.2% alarm; abnormalities automatically diverted; regularly compared with Karl Fischer method; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusão principal
Online monitoring moves the quality gate forward, avoiding batch losses; 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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