Processing Machinery
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PVDF Product Discoloration
Problembeschreibung
Abnormal color.
Ursachenanalyse
Discoloration from thermal decomposition; material contamination can also cause it.; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience; This mechanism has been repeatedly verified by industry materials, and it should be confirmed first during troubleshooting
Lösung
①Control temperature; ②clean the equipment; ③material management; ④shorten residence.; After adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability; Change only one variable at a time and record parameter changes, so as to locate effective measures
Wichtigste Erkenntnis
Discoloration is a signal of decomposition or contamination.; 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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