Processing Machinery
3 Aufrufe
Glass Fibre material changeover residue
Problembeschreibung
After Glass Fibre material changeover, first 5-10 products contain previous raw material residue, color difference and performance deviation
Ursachenanalyse
Barrel and screw have large amount of previous raw material residue; cleaning not thorough, dead corner zones have residue; purging material amount insufficient
Lösung
1) Increase purging material amount to 2-3 times barrel capacity; 2) raise speed and temperature during cleaning to accelerate removal; 3) disassemble screw to thoroughly clean dead corners
Wichtigste Erkenntnis
Material changeover residue is caused by insufficient cleaning; full cleaning and disassembly are key
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