Extrusion & Post
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HDPE pipe temperature
Fenómeno do problema
HDPE pipe extrusion surface is rough
Análise das causas
The extrusion temperature is too low causing poor plasticization, or the die head temperature is uneven; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Extrusion temperature 190-230℃; calibrate each temperature zone of the die head; check plasticization quality; 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
Conclusão principal
Pipe surface quality is guaranteed by the temperature curve; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar future problems
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