Molding Process
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PETG transparent part optical distortion
Fenómeno do problema
When viewing objects through PETG products, distortion and deformation occur (optical distortion).
Análise das causas
The product surface is uneven or thickness non-uniform causing uneven light refraction, internal stress causes local refractive index changes.
Solução
Optimize the flatness of the injection molded surface; uniform wall thickness; fully anneal to reduce internal stress.
Conclusão principal
PETG optical distortion is a serious defect for transparent packaging.
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