Injection Molding
6 görüntüleme
Unbalanced filling of multi-cavity in PU '2079851475616104452
Sorun Belirtisi
In PU '2079851475616104452 with an 8-cavity mold, the filling amount of each cavity differs by ±15%, some cavities have short shots and some have flash
Neden Analizi
Unbalanced runner design, the runner length and resistance of each cavity are inconsistent; the gate sizes of each cavity are inconsistent
Çözüm
1) Adopt balanced runner design to ensure each cavity runner is equal in length and resistance; 2) Gate sizes of each cavity precisely consistent at ±0.01mm; 3) Reduce injection speed to reduce the influence of resistance differences; 4) Use mold flow analysis software to optimize runner design
Temel Çıkarım
Multi-cavity filling imbalance is caused by runner design; balanced runners and mold flow analysis are key
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