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Patentanspruch:Claim:Verfahren zur Herstellung eines Mehrschichten-Halbzeugs, aus dem Kontaktstücke geformt
werden können, durch Pressen, Sintern und Strangpressen eines aus mindestens zwei unterschiedlichen
Pulvern gefertigten mehrschichtigen Blocks, wobei die einzelnen Pulver in je eine
Abteilung einer durch vor dem Verpressen herausgezogenen Trennwände unterteilten Preßform
geschüttet werden, dadurch gekennzeichnet, daß der beim Einschütten der
Pulver untenliegende Teil der Trennwände verzahnt, geschränkt oder seitlich angerauht ist.Process for the production of a multilayer semifinished product from which contact pieces are formed
can be, by pressing, sintering and extrusion one of at least two different
Powder-made multi-layer blocks, with each powder in one
Division of a die divided by partitions pulled out before pressing
be poured, characterized in that when pouring the
Powder-lying part of the partition walls is toothed, set or roughened on the sides.
Partitions in multiple mould for artificial stone blocks - are joined together by tenons with surrounding shoulders fitting into corresponding mortices