Material Drying
8 visualizaciones
PA6 Storage Shelf Life
Fenómeno del problema
PA6 pellets stored for a long time still show silver streaks after drying, with low impact strength
Análisis de la causa
PA6 pellets with damaged packaging or long-term storage continuously absorb moisture and may be accompanied by low-level oxidation; pellets with an excessively long moisture-absorption history, even if re-dried, have partially solidified molecular weight loss
Solución
①Store in sealed original packaging, first in first out; ②use up within a time limit after opening and record the exposure time; ③overdue stock material is re-dried and then doubly verified for moisture content and impact; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusión clave
Storage management of PA6 pellets directly affects processability; sealing, first in first out, and exposure records are the three elements of raw material management; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!