Material Analysis
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EVA processing temperature fluctuates
Fenómeno del problema
During EVA processing, temperature fluctuates ±5-8°C, exceeding the ±2°C control accuracy
Análisis de la causa
Improper PID parameters of the temperature control system; aging heater bands with uneven power; improper thermocouple position with measurement deviation
Solución
1) Re-calibrate PID parameters; 2) Replace aging heater bands; 3) Adjust thermocouple position to the center of the melt pool
Conclusión clave
Temperature fluctuation is caused by an improper temperature control system; PID calibration and heater band replacement are key
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