Rheologische Vorgänge während des Strangpressens. Einfluß der Abmessungen und Form der Matrizen auf die Lage des Kraftbedarfs über der Preßstrecke. Verlagerung der "dead metal zone" bei einem Matrizenwinkel von 50° und 135°, Materialbewegung in der dead metal zone. Zeitraffung.

The film shows rheological conditions during the process of extrusion. The influence of the various dimensions and shapes of the dies on the materials flow and the distribution of power over displacement are demonstrated. The replacement of the dead metal zone due to die angles of 50° and 135° is shown. It is further demonstrated that the dead metal zone has a slow but steady flow of material. The formation of the dead metal zone in the case of indirect extrusion and the wave formation during extrusion over a bridge die are observations not known hitherto. With time lapse.