Molding Process
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PBT Ultrasonic Welding
Fenómeno del problema
PBT parts have insufficient ultrasonic welding strength, with weld overflow or poor fusion
Análisis de la causa
PBT can be ultrasonically welded, which is its processing advantage; improper welding parameters cause overflow or insufficient fusion; glass fiber content affects welding strength; energy director design concentrates energy
Solución
①Optimize amplitude, pressure, and time parameters according to the grade; ②Adjust welding parameters for glass fiber parts; ③Design energy director structures; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Ultrasonic welding is PBT's supporting advantageous process; parameters and energy director design determine weld quality; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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