Molds & Tooling
3 Aufrufe
PVC Corrosion Cycle
Problembeschreibung
PVC molds get rougher with use, and product surfaces deteriorate accordingly
Ursachenanalyse
Degradation HCl corrodes the mold surface, and the roughened surface aggravates retention and degradation, forming a vicious cycle; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Lösung
Use corrosion-resistant steel or chrome plating for the mold; clean up degradation immediately; regular mold surface maintenance; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Wichtigste Erkenntnis
PVC corrosion is a self-reinforcing cycle—prevent corrosion plus prevent degradation; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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