Production & Quality
12 görüntüleme
EVA surface microcracks
Sorun Belirtisi
Microcracks of 0.05-0.2mm appear on the EVA product surface, affecting appearance and strength
Neden Analizi
Excessive internal stress in EVA products exceeding the material yield stress; environmental stress cracking; stress concentration in product design
Çözüm
1) Annealing treatment to release internal stress; 2) Product design to avoid sharp corners and stress concentration; 3) Select high molecular weight EVA to improve crack resistance
Temel Çıkarım
Microcracks are caused by excessive internal stress; annealing and crack-resistant design are key
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