Molds & Tooling
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PVDF Product Flow Marks
Problembeschreibung
Wavy flow marks on the surface.
Ursachenanalyse
Low melt front temperature; slow speed or small gate.; 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
①Increase temperature; ②increase speed; ③enlarge the gate; ④fill smoothly.; 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
Flow marks are improved by temperature and speed.; 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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