Molds & Tooling
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Internal shrinkage porosity in TPU thick-walled products
Fenómeno do problema
The central part of the thick-walled parts is loose or has voids
Análise das causas
The center cools slowly, the feeding runner solidifies too early
Solução
Optimize the gate position and size, extend the holding pressure, increase the pressure
Conclusão principal
Internal quality of thick-walled parts is a technical difficulty
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