Molds & Tooling
5 görüntüleme
PVC Ejector Whitening
Sorun Belirtisi
Whitening at ejector pin positions on PVC products
Neden Analizi
Ejection stress concentration causes local stress whitening; during on-site troubleshooting, verify item by item according to this mechanism to 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
Çözüm
Enlarge and add ejector pins; sufficient draft angle; eject after sufficient cooling; 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
Temel Çıkarım
Ejector whitening relies on balanced ejection and sufficient cooling; 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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