Molds & Tooling
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PC/ABS weld line
Fenómeno del problema
Weld lines are obvious and low in strength.
Análisis de la causa
The front temperature of the two flow fronts is low and fusion is poor; low mold temperature and slow speed both aggravate it.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solución
①Raise melt and mold temperature; ②optimize gate position; ③increase confluence speed; ④set venting and overflow wells.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Weld line management relies on temperature and gate; high mold temperature is particularly effective for PC/ABS weld lines.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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