Material Analysis
13 مشاهدة
Unstable shrinkage rate of EMA
ظاهرة المشكلة
The shrinkage rate of EMA products fluctuates ±0.8%, exceeding the ±0.2% requirement
تحليل الأسباب
Molecular weight differences between EMA batches cause shrinkage rate variation; processing temperature fluctuation affects crystallinity and thereby shrinkage rate
الحل
1) Strictly control raw material batch consistency; 2) Stabilize processing temperature within ±2°C to ensure consistent crystallinity; 3) Reserve adjustment space for mold shrinkage compensation
الخلاصة الأساسية
Unstable shrinkage rate is caused by batch differences and temperature fluctuation; raw material and temperature control are key
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