Molds & Tooling
5 görüntüleme
POM crystallization control
Sorun Belirtisi
POM products from the same mold have different shrinkage rates in different batches
Neden Analizi
Mold temperature fluctuations cause different crystallinity, and the shrinkage rate changes accordingly; during on-site troubleshooting, 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
Çözüm
Lock the mold temperature and monitor by actual measurement; standardize process parameters; include shrinkage rate in first article inspection; after adjustment, take continuous samples 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
Temel Çıkarım
Shrinkage consistency relies on mold temperature and process locking; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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