| 摘要 |
The present invention concerns an extrusion tool (1) with an annular outlet gap or circular slot, especially sleeve tools and mandrel holding tools, and also a procedure for manufacturing an extrusion tool of such a type. The present invention distinguishes itself in that, the center mandrel (4) is surrounded annularly by a flow divider (3), which divides the melt flow into two annular partial flows. The center mandrel (4) and/or the flow divider (3) are also arranged eccentric to the center line of the annular outlet gap (13) in the region lodged directly in front of the annular outlet gap (13). Two melt flows with eccentric distribution of wall thickness result from this. |
