Processing Machinery
8 visualizaciones
LLDPE film frost line instability
Fenómeno del problema
The frost line fluctuates up and down, and thickness changes accordingly.
Análisis de la causa
LLDPE output is sensitive to temperature fluctuations; die head buildup and screen clogging also cause output pulsation.; During on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience.
Solución
①Stabilize extrusion temperature; ②regularly clean the die head; ③replace screens on schedule; ④monitor melt pressure trends.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.
Conclusión clave
Frost line stability is a sign of LLDPE process maturity; stabilizing material and temperature at the source is fundamental.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!