Molding Process
11 visualizações
PEEK product improper post-crystallization heat treatment
Fenómeno do problema
Post-crystallization treatment instead causes performance decline or poor effect
Análise das causas
Heat treatment temperature not high enough or time insufficient, crystallinity not reaching the target; temperature too high causing thermo-oxidative degradation; heating/cooling rate too fast introducing new internal stress
Solução
Post-treatment temperature 200-250°C held for 2-4 hours; perform in nitrogen or vacuum protective atmosphere to avoid oxidation; slow heating and cooling <3°C/min
Conclusão principal
Post-crystallization heat treatment is a necessary process step to compensate for insufficient crystallization during processing
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!