Processing Machinery
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HDPE Pipe Uneven Cooling
Problembeschreibung
Uneven pipe cooling causes ovality out of tolerance, and water ripples appear on the inner wall
Ursachenanalyse
Uneven sizing cooling water temperature and flow make pipe cooling inconsistent; insufficient inner wall cooling forms ripples; the parameter matching of vacuum sizing and internal pressure sizing affects roundness; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based solely on experience
Lösung
①Control cooling water temperature and flow uniformly; ②optimize vacuum sizing parameters; ③check the internal cooling system when inner wall ripples occur; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
HDPE pipe roundness is a mirror of cooling uniformity; matching external cooling and internal cooling parameters is the key; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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