Injection Molding
1 visualizações
Severe Flash in PU '2079851475616104452
Fenómeno do problema
PU injection molded products have parting line flash 0.05-0.1mm, width >2mm, requiring secondary trimming
Análise das causas
Injection pressure too high >80MPa, melt overflowing from the parting line; clamping force insufficient; mold parting line mating gap >0.02mm
Solução
1) Reduce injection pressure to 60-70MPa; 2) Increase clamping force or use a larger tonnage '2079851475616104452 machine; 3) Mold mating gap <0.02mm; 4) Increase melt viscosity to reduce mold penetration tendency
Conclusão principal
Flash is caused by high-pressure injection and mold gap; reducing pressure and improving mold mating are key
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!