The tungsten electrode itself is usually not directly water-cooled, but the welding gun part where the tungsten electrode is located in argon arc welding equipment is often designed with water cooling to maintain the overall cooling effect.
Specifically:
Tungsten electrode itself: Tungsten material has an extremely high melting point (about 3410°C) and is small in size, so it does not come into direct contact with cooling water, so it does not need direct water cooling.
Welding torch cooling: In order to prevent the welding gun head and electrode bracket from overheating, especially during high-current welding, many industrial-grade TIG welding machines use water-cooled welding guns. The water cooling system removes heat from the torch components by circulating cooling water, indirectly helping to maintain the operating temperature of the tungsten electrode and preventing overheating and ablation.
Air-cooled welding torches: Low-power or portable welding machines often use air-cooled systems, which have relatively weak cooling effects and are suitable for low-current welding.
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