Processing Machinery
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PVC Recycling Difficulty
Fenómeno del problema
PVC recycled material has poor reprocessing quality and odor
Análisis de la causa
PVC recycled material has complex thermal history, consumed stabilizer and contains impurities; during on-site troubleshooting, verify item by item according to this mechanism to 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
Solución
PVC recycling is mainly closed-loop within the same category; add stabilizer; downgrade use; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusión clave
PVC recycling should be closed-loop and downgraded, with limited quality; 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 similar problems in the future
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