Thermoforming
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PETG thermoformed product edge curling
Fenómeno del problema
The product edges curl upward or downward and deform, unable to remain flat.
Análisis de la causa
Sheet edges heated too much or too little, shrinkage inconsistent with the middle, mold edge cooling insufficient.
Solución
Optimize sheet heating so the temperature difference between edges and middle is <5°C; strengthen edge cooling; increase edge clamping force.
Conclusión clave
PETG '2079851475616104458 edge curling is related to heating uniformity and cooling.
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