Molds & Tooling
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PC/ABS product weld line
Fenómeno del problema
Strength decreases and appearance is poor at the weld line of multi-gate products.
Análisis de la causa
When two streams of the PC/ABS two-phase alloy converge, fusion is poor, especially as the rubber phase in ABS hinders fusion.
Solución
Increase melt temperature 250-270°C and mold temperature 70-90°C; optimize gates to reduce weld lines.
Conclusión clave
PC/ABS weld lines are a common weakness in the alloy field.
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