Extrusion & Post
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Non-uniform EAA extrusion coating thickness
Problem Phenomenon
EAA extrusion coating thickness deviation ±20%
Cause Analysis
Unreasonable die runner design; coating temperature fluctuation causing viscosity change
Solution
1) Coat-hanger die design; 2) Temperature ±2°C; 3) Online thickness measurement feedback adjustment
Key Takeaway
EAA coating thickness requires die design and temperature control optimization
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