Processing Machinery
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HDPE Burnt
Fenómeno del problema
HDPE product corner burnt marks
Análisis de la causa
Trapped gas adiabatic compression overheats and degrades; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solución
Open vents at burnt positions; reduce speed at the end stage; recheck temperature; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusión clave
HDPE burnt is treated as trapped gas venting; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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