Molds & Tooling
8 visualizações
Product shrinkage rate high and fluctuating
Fenómeno do problema
Large dimensional deviations, with shrinkage rate fluctuating irregularly between 1.2-1.8%
Análise das causas
Inconsistent cooling rates in different areas cause crystallinity differences; mold temperature fluctuations cause shrinkage rate changes; inconsistent holding switchover timing
Solução
Stabilize the mold temperature at 180-200°C±2°C; finely adjust the holding switchover point and holding pressure curve; ensure sufficient cooling time
Conclusão principal
PEEK shrinkage rate is highly sensitive to mold temperature and cooling rate
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!