EP 1481574 A2 20041201 - METHOD FOR THE PRODUCTION OF ELECTRODE ELEMENT FOR A PLASMA TORCH
Title (en)
METHOD FOR THE PRODUCTION OF ELECTRODE ELEMENT FOR A PLASMA TORCH
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES ELEKTRODENELEMENTES FÜR PLASMABRENNER
Title (fr)
PROCEDE DE FABRICATION D'UN ELEMENT ELECTRODE POUR CHALUMEAU A PLASMA
Publication
Application
Priority
- DE 0300763 W 20030305
- DE 10210421 A 20020306
Abstract (en)
[origin: US7098422B2] An electrode element for plasma torches and a production method for such electrode elements. The electrode element for plasma torches includes at least one core made of a metal or a metal alloy having a smaller work function that forms the actual electrode connected as a cathode. This core is enclosed by a shell part, which is made of a metal or a metal alloy having a greater work function than the core and a greater thermal conductivity. Between the core surface and the shell part there is provided a boundary layer in a graded form, which is made up of solid solutions of the two metals or metal alloys, or an intermediate layer toward the core surface and toward the shell part, which is made of another metal or a metal alloy having a work function greater than that of the core material wherein the boundary layers of the intermediate layer form a graded transition.
IPC 1-7
IPC 8 full level
H05H 1/34 (2006.01)
CPC (source: EP US)
H05H 1/34 (2013.01 - EP US); H05H 1/3442 (2021.05 - EP); H05H 1/3442 (2021.05 - US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03075621 A2 20030912; WO 03075621 A3 20031113; AT E418258 T1 20090115; AU 2003240381 A1 20030916; DE 10210421 A1 20031002; DE 10210421 B4 20071122; DE 50310929 D1 20090129; EP 1481574 A2 20041201; EP 1481574 B1 20081217; US 2005161443 A1 20050728; US 7098422 B2 20060829
DOCDB simple family (application)
DE 0300763 W 20030305; AT 03729808 T 20030305; AU 2003240381 A 20030305; DE 10210421 A 20020306; DE 50310929 T 20030305; EP 03729808 A 20030305; US 50669605 A 20050126