Processing Machinery
5 görüntüleme
EVA material changeover residue
Sorun Belirtisi
After EVA material changeover, the first 5-10 products contain residue of the previous material with color difference and performance deviation
Neden Analizi
Large amount of previous material residue in the barrel and screw; incomplete purging with residue in dead zones; insufficient purging compound amount
Çözüm
1) Increase purging compound amount to 2-3 times the barrel capacity; 2) Increase rotation speed and temperature during purging to accelerate removal; 3) Disassemble the screw to thoroughly clean dead zones
Temel Çıkarım
Changeover residue is caused by incomplete purging; thorough purging and disassembly are key
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