Thermoforming
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Uneven Thickness of PBT Extruded Sheet
Fenómeno del problema
The transverse thickness of the PBT extruded sheet fluctuates, affecting subsequent stamping or '2079851475616104458.
Análisis de la causa
The die lip gap is uneven; the melt temperature distribution is uneven and the viscosity differs; the three-roll gaps are not parallel.
Solución
Precisely adjust the die lip gap; optimize the barrel temperature uniformity; calibrate the three-roll gap.
Conclusión clave
The thickness uniformity of PBT sheet is the basis for subsequent processing.
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