Patent ID: 8125129
Filing Date: 2012-02-28
Classification: B02C

Abstract:
1. Working electrode for an electrodynamic fragmenting installation, comprising an insulator, a central conductor disposed in the insulator, the central conductor having a working end, at which there is arranged an electrode tip formed by an exchangeable changing part, wherein the changing part in axial direction under compressive prestress adjoins, with a contact area, a stop area at the working end of the central conductor and at its end facing away from the electrode tip is screwed together, by means of a first threaded connection, with the central conductor, wherein the changing part between the first threaded connection and the contact area comprises an elongation area and/or the central conductor between the first threaded connection and the stop area comprises an elongation area, the elongation area being under tensile prestress thereby generating the compressive prestress between the contact area and the stop area.