Extrusion & Post
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Wavy edge of PETG extruded sheet
Problem Phenomenon
The edge of the sheet shows wavy deformation and is not straight.
Cause Analysis
The die lip edge gap is too large, the edge cooling is insufficient, and the sheet stretching is uneven.
Solution
Adjust the die lip edge gap; strengthen the edge cooling; optimize the sheet conveying path.
Key Takeaway
PETG wavy edge affects the subsequent use of the sheet.
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