Processing Machinery
6 مشاهدة
DSTDP material changeover residue
ظاهرة المشكلة
After DSTDP material changeover, the first 5-10 products contain previous material residue, color difference and performance deviation
تحليل الأسباب
Large amount of previous material residue in the barrel and screw; incomplete cleaning, residue in dead corner zones; insufficient purging compound amount
الحل
1) Increase purging compound amount to 2-3 times the barrel capacity; 2) increase speed and temperature during cleaning to accelerate removal; 3) disassemble the screw to thoroughly clean dead corners
الخلاصة الأساسية
Material changeover residue is caused by incomplete cleaning; thorough cleaning and disassembly are key
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