BE481981A - - Google Patents
Info
- Publication number
- BE481981A BE481981A BE481981DA BE481981A BE 481981 A BE481981 A BE 481981A BE 481981D A BE481981D A BE 481981DA BE 481981 A BE481981 A BE 481981A
- Authority
- BE
- Belgium
- Prior art keywords
- electrode
- current
- arrangement
- welding machines
- welding
- Prior art date
Links
- 238000003466 welding Methods 0.000 claims description 12
- 238000010891 electric arc Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/285—Cooled electrode holders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Description
<Desc/Clms Page number 1>
"Disposition pour machines de soudure à l'arc électrique automatiques
Dans les machines de soudure à l'arc électrique, il a toujours été difficile de fournir le courant à l'électrode d'une façon telle que l'élec- trode ne soit pas indûment chauffée par le courant. Ceci est particulièrement le cas dans les machines de soudure dans lesquelles le courant est fourni à l' électrode à une distance considérable de l'arc, c'est-à-dire dans toutes les machines travaillant avec des électrodes en forme de tige d'une longueur limi- tée et avec des électrodes non continues. g'est pourquoi, dans beaucoup d'espè- ces de machines de soudure automatiques, des tentatives ont été faites pour fournir le courant à l'électrode immédiatement au point de soudure.
Ceci, cepen- dant, entraîne de grandes difficultés, parce que si l'on emploie des électrodes recouvertes, le revêtement doit être partiellement enlevé.
La préente invention est relative à une disposition par laquelle,
<Desc/Clms Page number 2>
dans les machines de soudure automatiques, ledit chauffage est évité quelle que soit la manière dont le courant est fourni à l'électrode. Selon l'invention, ceci est réalisé grâce au fait que la machine de soudure automatique présente une disposition dans laquelle on oblige de l'air froid à passer le long de 1' électrode. Par cette phase du procédé, la capacité de transport du courant de m l'électrode est accrue dans des proportions étonnament grandes, de telle sorte qu'avec une électrode donnée, la soudure peut être réalisée avec un courant considérablement plus grand eu'il n'a été possible jusqu'ici.
Afin de refroidir l'électrode de façon efficace, la machine de soudure automatique est conçue de telle manière que l'électrode est amenée au point de soudure par un canal traversé par un courant d'air froid, lequel courant d'air s'échappe de l'extré- mité du canal et s'écoule le long de l'électrode.
Revendications.
1. Disposition dans des machines de soudure à l'arc électrique automatiques, caractérisée en ce qu'on a prévu un dispositif pour refroidir l' électrode au moyen d'un courant d'air s'écoulant le long de l'électrode.
<Desc / Clms Page number 1>
"Arrangement for automatic electric arc welding machines
In electric arc welding machines it has always been difficult to supply current to the electrode in such a way that the electrode is not unduly heated by the current. This is especially the case in welding machines where current is supplied to the electrode at a considerable distance from the arc, i.e. in all machines working with rod-shaped electrodes. a limited length and with non-continuous electrodes. Therefore, in many species of automatic welding machines, attempts have been made to supply current to the electrode immediately at the point of welding.
This, however, causes great difficulties, because if coated electrodes are employed, the coating must be partially removed.
The present invention relates to an arrangement by which,
<Desc / Clms Page number 2>
in automatic welding machines, said heating is avoided regardless of how the current is supplied to the electrode. According to the invention, this is achieved by the fact that the automatic welding machine has an arrangement in which cold air is forced to pass along the electrode. By this phase of the process, the current carrying capacity of the electrode is increased to surprisingly large proportions, so that with a given electrode, the weld can be performed with a considerably greater current without it. has been possible so far.
In order to cool the electrode efficiently, the automatic welding machine is designed in such a way that the electrode is brought to the welding point by a channel through which a stream of cold air passes, which stream of air escapes. from the end of the channel and flows along the electrode.
Claims.
1. Arrangement in automatic electric arc welding machines, characterized in that there is provided a device for cooling the electrode by means of a current of air flowing along the electrode.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
BE481981A true BE481981A (en) |
Family
ID=128811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE481981D BE481981A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE481981A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0065405A2 (en) * | 1981-05-13 | 1982-11-24 | Steel Castings Research And Trade Association | Improved torch useful in air carbon arc processes |
-
0
- BE BE481981D patent/BE481981A/fr unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0065405A2 (en) * | 1981-05-13 | 1982-11-24 | Steel Castings Research And Trade Association | Improved torch useful in air carbon arc processes |
EP0065405A3 (en) * | 1981-05-13 | 1983-08-03 | Steel Castings Research And Trade Association | Improved torch useful in air carbon arc processes |
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