Molding Process
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Extruded sheet thickness fluctuation >5%
Problem Phenomenon
The sheet thickness is uneven in the transverse and longitudinal directions
Cause Analysis
Temperature fluctuation, uneven die lip gap, and mismatched hauling speed
Solution
PID temperature control 1C, automatic die lip, melt pump, constant hauling
Key Takeaway
Extremely important for photovoltaic backsheet applications
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