Processing Machinery
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PESU Melt Temperature Too High Degradation
Problembeschreibung
PESU products discolor and performance declines; melt temperature exceeds 385℃ or stays at high temperature for a long time.
Ursachenanalyse
PESU melt temperature is 343~385℃; excessive temperature causes thermal degradation; long-term residence accumulates; transparent parts are sensitive to color change; mechanical properties decline.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Lösung
①Control melt temperature at 343~385℃; ②shorten residence time; ③calibrate temperature by actual measurement; ④clean the machine after degradation; ⑤control at the lower limit for color-sensitive applications.
Wichtigste Erkenntnis
PESU's 385℃ upper limit is the degradation red line; color management of transparent parts is stricter; actual temperature measurement prevents gauge display errors.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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