Molding Process
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HDPE film slitting rough edge
Problem Phenomenon
After slitting, the film edge is rough and sheds debris.
Cause Analysis
Dull blade, unstable tension, slitting at high film temperature.
Solution
①Replace/sharpen the blade; ②stabilize tension; ③cool sufficiently before slitting; ④adjust the blade pressure angle.
Key Takeaway
For rough edge, check the blade, tension, and temperature.
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