Method for cleaning a contact tube of a welding torch, as well as a welding torch and a contact tube
US8674264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2007 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Sep 30, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/328
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for cleaning a contact tube (20) of a welding torch (10), via which contact tube a welding wire (13) is supplied with electrical energy, said welding wire being moved towards the welding torch (10) by a wire reel (14) or a welding drum via a wire feeder (11), as well as to a welding plant (1) and a contact tube (20) for the welding torch (10) of such a welding plant (1). In order to prolong the service life of a contact tube (20) of a welding torch (10), the invention provides that the welding wire (13) is at least once moved backwards in the direction of the wire reel (4) or wire drum until the end (27) of the welding wire (13) lies at least within the length (36) of the contact tube (20), and that the welding wire (13) will subsequently again be moved forwards, in particular moved backwards into its starting position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.