Extrusion & Post
7 visualizações
LLDPE extrusion temperature 195-215℃
Fenómeno do problema
LLDPE film shows gel and uneven thickness; fluctuation remains after temperature adjustment.
Análise das causas
LLDPE film extruder barrel 195℃ and die head 215℃ are the benchmark; uneven temperature produces gel; low die head temperature brings high melt fracture risk; heater bands and thermocouples need regular calibration.
Solução
①Barrel 195℃, die head 215℃ benchmark settings; ②regular calibration of heater bands and thermocouples; ③check filtration and degradation when gel is excessive; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.
Conclusão principal
LLDPE film temperature is the golden combination of 195/215; equipment state calibration is more important than blindly adjusting temperature; 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!