Material Analysis
13 مشاهدة
Unstable shrinkage of PU
ظاهرة المشكلة
Shrinkage of PU products fluctuates ±0.8%, exceeding the ±0.2% requirement
تحليل الأسباب
Molecular weight differences between PU batches cause shrinkage variation; processing temperature fluctuation affects crystallinity and thus shrinkage
الحل
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
الخلاصة الأساسية
Unstable shrinkage is caused by batch differences and temperature fluctuation; raw material and temperature control are key
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!