Global Patent Index - EP 1323339 A1

EP 1323339 A1 20030702 - PLASMA TORCH, ESPECIALLY A PLASMA POSITIVE POLE TORCH

Title (en)

PLASMA TORCH, ESPECIALLY A PLASMA POSITIVE POLE TORCH

Title (de)

PLASMABRENNER, INSBESONDERE PLASMAPLUSPOLBRENNER

Title (fr)

CHALUMEAU A PLASMA, NOTAMMENT CHALUMEAU A POLE POSITIF A PLASMA

Publication

EP 1323339 A1 20030702 (DE)

Application

EP 01974296 A 20010925

Priority

  • DE 10047696 A 20000925
  • EP 0111091 W 20010925

Abstract (en)

[origin: WO0226005A1] The invention relates to a plasma torch, especially a plasma positive pole torch, comprising a preferably truncated electrode (1) which is cooled by a cooling agent, and a nozzle (2) which is concentric and electrically insulated in relation to the electrode (1), and likewise cooled by a cooling agent. A channel (3) for supplying the plasma gas is formed between the electrode (1) and the nozzle (2). The aim of the invention is to enable light metals to be joined even when the electrode has a permanently positive polarity in high power ranges. In order to achieve this, a cooling agent supply (4) is provided for the electrode (1), said supply being central in relation to the longitudinal axis of the electrode (1). The recirculation of the cooling agent is carried out by means of at least two recirculation channels (5) which are radially arranged towards the outside in relation to the longitudinal axis of the electrode.

IPC 1-7

H05H 1/28; H05H 1/34

IPC 8 full level

H05H 1/28 (2006.01); H05H 1/34 (2006.01)

CPC (source: EP US)

H05H 1/28 (2013.01 - EP); H05H 1/34 (2013.01 - EP US); H05H 1/3436 (2021.05 - EP); H05H 1/3442 (2021.05 - EP); H05H 1/3457 (2021.05 - EP)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0226005 A1 20020328; AT E285662 T1 20050115; DE 10047696 A1 20020418; DE 50104901 D1 20050127; EP 1323339 A1 20030702; EP 1323339 B1 20041222

DOCDB simple family (application)

EP 0111091 W 20010925; AT 01974296 T 20010925; DE 10047696 A 20000925; DE 50104901 T 20010925; EP 01974296 A 20010925