Molds & Tooling
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PETG product thermal history imprint gloss difference
Fenómeno del problema
Different surface areas have different light reflectivity, forming visible gloss differences.
Análisis de la causa
Surface microstructures in areas with different thermal histories differ, causing reflection differences; the difference between the gate area and the end area is obvious.
Solución
Balance the mold temperature; uniform product wall thickness; optimize gate position.
Conclusión clave
PETG gloss difference is a reflection of molding thermal history.
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