Material Drying
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PA12 FDM Filament Drying and Clogging
Problembeschreibung
【Problem phenomenon】FDM printing of PA12 filament had nozzle clogging and intermittent extrusion, and printed parts had bubbles and poor layer texture
Ursachenanalyse
After PA12 filament absorbs moisture, the moisture vaporizes during printing, clogging the nozzle and forming bubbles; FDM filament must be dried at 60℃ for more than 4 hours, sealed after drying, and exposed for no more than 30 minutes
Lösung
Dry the filament at 60℃×4h or more and store it sealed; equip dehumidification equipment in environments with humidity greater than 60%; re-dry filament exposed beyond the time limit before putting it on the machine; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
FDM filament is dried at 60℃×4h, sealed for use, and 30 minutes of exposure is the upper limit; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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