Processing Machinery
3 Aufrufe
PU material changeover residue
Problembeschreibung
After PU material changeover, the first 5-10 products contain previous material residue, color difference and performance deviation
Ursachenanalyse
Large amount of previous material residue in barrel and screw; incomplete cleaning, residue in dead zones; insufficient purging material amount
Lösung
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
Wichtigste Erkenntnis
Changeover residue is caused by incomplete cleaning; thorough cleaning and disassembly are key
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!