Extrusion & Post
9 Aufrufe
PVC Wire and Cable Extrusion
Problembeschreibung
Cable insulation layer had pores, failed the breakdown test, and showed surface eccentricity
Ursachenanalyse
Insulation pores originate from damp granules or degradation gas; poor mold centering causes eccentricity; improper temperature control of soft PVC affects insulation performance consistency; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Lösung
①Dry the granules and control extrusion temperature; ②adjust mold centering; ③online diameter measurement and spark detection of the insulation layer; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Wichtigste Erkenntnis
The quality of PVC cable is electrical safety; pores and eccentricity are two major veto items, and online detection must be configured; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!