Material Analysis
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DSTDP unstable shrinkage rate
Fenómeno del problema
DSTDP product shrinkage rate fluctuates ±0.8%, exceeding the ±0.2% requirement
Análisis de la causa
Molecular weight differences between DSTDP batches cause shrinkage rate variation; processing temperature fluctuation affects crystallinity and thus the shrinkage rate
Solución
1) Strictly control raw material batch consistency; 2) stabilize processing temperature ±2°C to ensure consistent crystallinity; 3) reserve adjustment space for mold shrinkage compensation
Conclusión clave
Unstable shrinkage rate is caused by batch differences and temperature fluctuation; raw material and temperature control are key
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