Material Drying
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POM drying records
Fenómeno do problema
When tracing a silver streak problem, the drying status of the batch cannot be confirmed
Análise das causas
Drying operations have no records, so the process state cannot be restored when a problem occurs; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Establish drying records: register temperature, time, and moisture content sampling batch by batch; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusão principal
Drying records are the foundation of the traceability system; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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