Material Analysis
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CEF shrinkage rate unstable
Fenómeno do problema
The shrinkage rate of the CEF product fluctuates ±0.8%, exceeding the ±0.2% requirement
Análise das causas
Differences in molecular weight between different batches of CEF cause changes in shrinkage rate; processing temperature fluctuations affect the crystallinity and thus the shrinkage rate
Solução
1) Strictly control the batch consistency of raw materials; 2) Stabilize the processing temperature ±2°C to ensure consistent crystallinity; 3) Reserve adjustment space for mold shrinkage compensation
Conclusão principal
Unstable shrinkage rate is caused by batch differences and temperature fluctuations; raw materials and temperature control are the key
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