Injection Molding
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Gate Blush in PCTG '2079851475616104452
Fenómeno del problema
Ring-shaped marks or color differences appear around the product gate.
Análisis de la causa
The melt flow at the gate is unstable (jetting effect), the gate size does not match the injection speed, and the venting is poor.
Solución
Optimize the gate design, enlarge it or change to a fan type; use multi-stage injection to control the gate speed; improve the venting.
Conclusión clave
PCTG gate blush is a manifestation of unstable mold filling flow.
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