Thermoforming
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PETG sheet storage deformation
Fenómeno do problema
PETG sheets warp and deform during storage and cannot be directly thermoformed.
Análise das causas
Stacked storage causes uneven force on upper and lower layers, ambient temperature changes cause uneven thermal expansion and contraction, and the internal stress of the sheets is not fully released.
Solução
Lay the sheets flat with uniform pressure; warehouse temperature controlled at 20±5°C; online annealing of sheets after extrusion.
Conclusão principal
PETG sheet storage management is an important link in ensuring subsequent processing quality.
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