Thermoforming
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Uneven Thickness of PBT Extruded Sheet
Fenómeno do problema
The transverse thickness of the PBT extruded sheet fluctuates, affecting subsequent stamping or '2079851475616104458.
Análise das causas
The die lip gap is uneven; the melt temperature distribution is uneven and the viscosity differs; the three-roll gaps are not parallel.
Solução
Precisely adjust the die lip gap; optimize the barrel temperature uniformity; calibrate the three-roll gap.
Conclusão principal
The thickness uniformity of PBT sheet is the basis for subsequent processing.
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