Extrusion & Post
7 visualizaciones
Discoloration of PC Products After Annealing Heat Treatment
Fenómeno del problema
Local yellowing of PC products occurs after annealing treatment at 120-130°C.
Análisis de la causa
The annealing temperature is too high or the time is too long, causing thermal oxidation; the oxygen content of the annealing furnace is high.
Solución
Control the annealing temperature ≤120°C; anneal under nitrogen protection; shorten the time.
Conclusión clave
PC annealing requires oxidation control to prevent discoloration.
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!