Material Drying
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PA6 Drying Curve Record
Fenómeno del problema
The same dryer gives inconsistent drying effects across different shifts, and quality problems cannot be traced
Análisis de la causa
Lacking drying process records, the actual drying temperature, time, and loading volume differ across shifts, and when quality problems occur, the specific state of the drying step cannot be traced back
Solución
Establish a drying record sheet, recording drying temperature, time, loading volume, dew point, and moisture content sampling results for each batch; the records are associated with product batches to facilitate quality traceability
Conclusión clave
Data-based recording of the drying process is the foundation of quality traceability, and operation from memory cannot guarantee consistency; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
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