Process and apparatus for the extrusion and tubular extrusion of small parts, in particular small plant parts, with binders

摘要

The invention relates to a process and an apparatus for the extrusion and tubular extrusion of small parts, in particular small plant parts, in which the mixture arriving in the filling and pressing space is compressed by the extrusion die and brought into a curing channel, characterised in that a) the charging by the extrusion die begins pressurelessly and then with increasing pressure, b) takes place simultaneously or virtually simultaneously at both opposing ends, c) the depth of penetration can be chosen by the same or different composition of the adhesive, if appropriate by use of an auxiliary substrate (gauze or foil), in such a way that the different strength between the central portions of the extruded part, the ends of the extruded part and the joining surfaces is eliminated completely or virtually completely and that an extrudate of entirely or virtually entirely the same tensile, bending and torsional strength is produced. <IMAGE>