Molding Process
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PU processing temperature fluctuation
Problembeschreibung
During PU processing, temperature fluctuates ±5-8°C, exceeding ±2°C control precision
Ursachenanalyse
Improper PID parameters of temperature control system; heater bands aged, uneven power; thermocouple position improper, measurement deviation
Lösung
1) Re-tune PID parameters; 2) Replace aged heater bands; 3) Adjust thermocouple position to the center of the melt pool
Wichtigste Erkenntnis
Temperature fluctuation is caused by improper temperature control system; PID tuning and heater band replacement are key
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