Processing Machinery
6 visualizações
PPO Shutdown Temperature Graded Management
Fenómeno do problema
【Problem Phenomenon】PPO shutdown durations vary, and product quality fluctuates greatly after restart
Análise das causas
SABIC gives a shutdown grading procedure: maintain barrel temperature within 15 minutes; cool down 50℃ for 15 minutes-2 hours; cool down to 180℃ for 2-12 hours; empty and turn off heating over 12 hours
Solução
Execute cooling or emptying according to shutdown duration grading; at restart, heat up according to the procedure and confirm melt state; establish shutdown records and restart checklists; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusão principal
PPO shutdown is handled in grades of 15 min/2 h/12 h; proceduralization avoids arbitrary decisions; 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!