Processing Machinery
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POE internal black speck carbonization
Problem Phenomenon
POE product interior shows 0.1-0.5mm black speck carbonized material
Cause Analysis
POE carbonized by prolonged heating in barrel dead corner zones; carbon deposit at the screw head; raw material impurities
Solution
1) Lower processing temperature to reduce carbonization; 2) Regularly clean screw and barrel; 3) Raw material filtration to remove impurities
Key Takeaway
Black specks are caused by thermal carbonization and carbon deposits; lowering temperature and regular cleaning are key
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