Molding Process
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Influence of cooling air temperature, air speed, and distance on fiber crystallization and diameter
Fenómeno del problema
Cooling air temperature, air speed, and distance affect fiber crystallization and diameter
Análisis de la causa
（1）The cooling air speed is too high, the fiber condenses quickly, and the crystallinity is low
（2）The cooling air speed is too low, and the fibers stick together or the diameter fluctuates
（3）The cooling air temperature is unstable and the crystallinity fluctuates
（4）Improper cooling distance and the fiber is not fully cooled
（5）Improper selection of side blowing and annular blowing
Solución
（1）Reasonably set the cooling air speed
（2）Stabilize the cooling air temperature
（3）Adjust the cooling distance
（4）Select the blowing method according to polyamide (general-purpose nylon)
（5）Ensure uniform cooling
Conclusión clave
Cooling needs to be controlled according to the crystallization characteristics of polyamide (general-purpose nylon)
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