Processing Machinery
8 visualizaciones
PU material changeover residue
Fenómeno del problema
After PU material changeover, the first 5-10 products contain previous material residue, color difference and performance deviation
Análisis de la causa
Large amount of previous material residue in barrel and screw; incomplete cleaning, residue in dead zones; insufficient purging material amount
Solución
1) Increase purging material amount to 2-3 times barrel capacity; 2) Increase speed and temperature during cleaning to accelerate removal; 3) Disassemble the screw to thoroughly clean dead zones
Conclusión clave
Changeover residue is caused by incomplete cleaning; thorough cleaning and disassembly are key
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!