Material Analysis
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Unstable Shrinkage of CMC
Problembeschreibung
Shrinkage of CMC products fluctuates ±0.8%, exceeding the ±0.2% requirement
Ursachenanalyse
Molecular weight differences between CMC batches cause shrinkage changes; processing temperature fluctuations affect crystallinity and thus shrinkage
Lösung
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
Wichtigste Erkenntnis
Unstable shrinkage is caused by batch differences and temperature fluctuations; raw material and temperature control are the key
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