Molds & Tooling
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Product dimensional accuracy difficult to control
Problembeschreibung
PEI products have large dimensional deviations, making it difficult to meet precision fit requirements
Ursachenanalyse
PEI shrinkage rate (0.5-1.0%) is very sensitive to mold temperature and holding conditions; every 1°C of mold temperature fluctuation can cause a shrinkage rate change of 0.02-0.05%
Lösung
Strictly control mold temperature within ±2°C; optimize the setting of holding pressure and time; correct mold dimensions based on actual measured shrinkage rate
Wichtigste Erkenntnis
The dimensional accuracy of PEI products is highly dependent on the stability of process parameters
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