Material Analysis
12 görüntüleme
Unstable PVA shrinkage rate
Sorun Belirtisi
PVA product shrinkage rate fluctuates ±0.8%, exceeding the ±0.2% requirement
Neden Analizi
Molecular weight differences between PVA batches cause shrinkage variation; processing temperature fluctuation affects crystallinity and thus the shrinkage rate
Çözüm
1) Strictly control raw material batch consistency; 2) Processing temperature stable ±2°C to ensure consistent crystallinity; 3) Mold shrinkage compensation with reserved adjustment space
Temel Çıkarım
Unstable shrinkage rate is caused by batch differences and temperature fluctuation; raw material and temperature control are the key
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