Injection Molding
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PETG '2079851475616104452 filling end weld strength
Fenómeno del problema
The weld strength at the filling end of the product (end meeting point) is severely insufficient.
Análisis de la causa
At the end, the melt temperature has decreased and flowability is poor; the two flow fronts converge at low temperature and fuse poorly.
Solución
Increase the melt temperature; optimize gate position to reduce end welding; strengthen venting in that area.
Conclusión clave
PETG end welding is the weakest link in filling.
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