The present invention relates to a screw element having an axially asymmetric screw cross-sectional profile with at least two configuration points located within the screw cross-sectional profile. The screw element according to the present invention is suitable for use in an extruder with two drive shafts rotating in the same direction and at the same speed to process or produce plastic substances as extrudates. The present invention further relates to an arrangement of two identical or different screw elements according to the present invention in an extruder with two drive shafts rotating in the same direction and at the same speed, wherein the screw elements according to the present invention are arranged opposite each other in pairs on the two drive shafts. The present invention additionally relates to an extruder equipped with two identical or different screw elements according to the present invention and having drive shafts rotating in the same direction and at the same speed, wherein the screw elements according to the present invention are arranged opposite each other in pairs on the two drive shafts. Furthermore, the present invention relates to the use of the screw element according to the present invention for processing or producing plastic substances.
Area Code: DE
Application Number: CN202080017348.5
