Processing Machinery
16 visualizaciones
Product black spots
Fenómeno del problema
Black burnt spots appear on the product
Análisis de la causa
Processing temperature >390°C, local degradation and carbonization; material residence time in the barrel exceeds the limit; accumulated material in equipment dead corners carbonizes and falls off
Solución
Strictly control temperature ≤370°C; shorten material residence to <5min; regularly disassemble and clean the screw and barrel
Conclusión clave
Black spots reflect local thermal degradation of PES
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!