Extruder die for extruding honeycomb bodies and process for the production thereof

摘要

An extruder die is formed from an assembly of die tubes (12). The die tubes (12) bear against one another with a first longitudinal section (12a) in each case. The second longitudinal sections (12b) in each case have a reduced cross-section and define a honeycomb space (30). At the transition from the first to the second longitudinal section, the die tube walls are provided with openings (20), so that the material to be extruded can flow from the inner space of the first longitudinal sections (12a) into the honeycomb space (30). In the region of the openings, the die tubes are provided with convergent-divergent constrictions. <IMAGE>