PROCEDIMIENTO PARA LA PREPARACION DE UN METAL DURO.

摘要

1. A hard metal composite, the binding metal phase of which is of iron, cobalt and/or nickel and the hard substance phase of which is of hexagonal mixed carbides or MoC with WC and/or cubic mixed carbides of MoC with carbides of Ti, Zr, Hf, V, Nb, Ta and/or Cr, characterised in that the hard substance phase contains from 10 to 50 ppm, of rare earth metals.