Processing Machinery
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EEA material changeover residue
Fenómeno do problema
After EEA material changeover, the first 5-10 products contain previous raw material residue, color difference and performance deviation
Análise das causas
Large amount of previous raw material residue in the barrel and screw; incomplete cleaning, residue in dead zones; insufficient purging material amount
Solução
1) Increase purging material amount to 2-3 times the barrel capacity; 2) Increase speed and temperature during cleaning to accelerate removal; 3) Disassemble the screw and thoroughly clean dead zones
Conclusão principal
Material changeover residue is caused by incomplete cleaning; thorough cleaning and disassembly are key
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