Molds & Tooling
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Product dimensional accuracy difficult to control
Fenómeno del problema
PEI products have large dimensional deviations, making it difficult to meet precision fit requirements
Análisis de la causa
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%
Solución
Strictly control mold temperature within ±2°C; optimize the setting of holding pressure and time; correct mold dimensions based on actual measured shrinkage rate
Conclusión clave
The dimensional accuracy of PEI products is highly dependent on the stability of process parameters
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