In collaboration with Harris Calorific Lincoln Group
The electrodes are conductive elements: connect an external electrical circuit with a means within which the current must scroll. Tungsten (TIG) electrodes are used in arc welding with inert and tungsten gas (Tungsten Inert gas) and plasma welding.
The tungsten is a very high melting temperature material, with excellent thermionic emission properties that is exploited to facilitate the operation of the electric arc.
The electrodes are made by sintering of powders and subsequent forging.
The tungsten electrodes for TIG contain small amounts of metal oxides that ensure the particular beneficial material as:
- Facilitate the start of the current transient
- Improve arc stability
- Increase the current range of the auction
- Reduce the risk of contaminating the basic surface
- Increase the life of the electrode