Material Drying
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Frequent fiber breakage during spinning
Problembeschreibung
Fiber breakage is frequent during spinning, the production continuity is poor, and the breakage rate exceeds the normal range
Ursachenanalyse
（1）The extrusion temperature is unstable and the melt viscosity fluctuates
（2）The raw material moisture content is high and vaporizes during spinning, causing breakage
（3）The spinning speed is too fast and the draw ratio is too large
（4）The screw plasticization is uneven and the melt strength fluctuates
（5）The filter screen is clogged and the pressure fluctuates
Lösung
（1）Stabilize the extrusion temperature within the range of 240-280°C
（2）Fully dry the raw material to moisture ≤0.02%
（3）Appropriately reduce the spinning speed
（4）Ensure uniform screw plasticization
（5）Replace the filter screen regularly
Wichtigste Erkenntnis
Spinning breakage requires stable temperature and drying
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