| 摘要 |
The invention concerns a screw for use in an extruder as well as an extruder with such a screw. In particular the invention concerns a screw for use in a twin screw extruder and a twin screw extruder. Screws customarily have a modular design. The modular construction of a screw results in a rod-shaped core, the so-called mandrel, and individual screw elements that are pushed onto the mandrel. To transmit the high occurring torque, the elements are connected to the mandrel in a positive-locking manner and also axially braced. The invention proposes designing the mandrel to be notch-free. This leads to a significant increase in the service life of such a mandrel, and thus also of the screw being used. |
