Qhov tseem ceeb ntawm cov khoom noj seem ntsia hlau ntawm extruder ntawm lub tshuab ziab khaub ncaws:

Lub kaum sab xis ntawm lub kaum sab xis ψ feem ntau yog 17 degree ~ 20 degree.

Qhov zawj qhov tob H1 yog xam los ntawm geometric compression piv ε ntawm cov ntsia hlau tom qab txiav txim siab qhov tob ntawm qhov seem homogenization.

Qhov ntev L1 ntawm ntu pub mis yog txiav txim siab los ntawm cov qauv empirical:

Rau non-crystalline polymer L1=(10 feem pua ​​~ 20 feem pua) L

Rau crystalline polymer L1=(60 feem pua ​​~ 65 feem pua) L