Molds & Tooling
8 visualizações
Pure PPO Melt 280-330℃ Window
Fenómeno do problema
【Problem Phenomenon】Pure PPO processing temperature is set improperly; below 280℃ stress is large, and above 330℃ performance declines
Análise das causas
Pure PPO barrel temperature should be designed at 280-330℃: it should not be lower than 280℃, otherwise high in-mold stress is generated, and should not exceed 330℃, otherwise performance declines; the modified MPPO window drops to 260-285℃
Solução
Set barrel temperature at 280-330℃ for pure PPO; 260-285℃ for MPPO; measure actual melt temperature to calibrate set values against drift; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusão principal
Pure PPO temperature 280-330℃ is a hard window, MPPO is separately set at 260-285℃; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!