TIG Welding Torch
A TIG torch uses a non-consumable tungsten electrode, concentrates shielding gas through a nozzle, and carries the welding current. It ensures thermal stability in the arc area.
Physical-Chemical Working Mechanism
A TIG welding torch uses a tungsten electrode that does not melt at the high temperatures of the welding process. The shielding gas is concentrated through a nozzle to protect the arc zone and remove pollutants from the air. The current flow is controlled to keep the temperature in the arc zone stable.
Metallurgical Relevance & Welding Risks
Using a TIG welding torch minimizes the risk of contamination from melted electrode materials. This results in a cleaner weld and improves the mechanical properties of the material. However, a missing or defective shielding gas system can lead to pores and weak spots in the weld, affecting strength.
Shop Practice & Action Instructions
Make sure the shielding gas is set correctly and flows continuously. Monitor the temperature in the arc zone and adjust the current flow accordingly. Use a stabilized electrode to minimize thermal fluctuations. If there are issues with gas flow or the electrode, contact service.