Tungsten inert gas welding torch with improved liquid cooling

摘要

Systems and methods for improved liquid cooling of a tungsten inert gas (TIG) welding torch are provided. The improved welding torch may feature conduits for conveying coolant from a cooling system to a collar, which holds a tungsten electrode of the welding torch, and back. A coolant return conduit may be disposed in a coolant supply conduit to improve thermal insulation of an outer surface of the welding torch. Some embodiments may feature a helical channel formed in the collar for conveying coolant around the electrode multiple times before returning the coolant through the return conduit.

主权项

1. A welding system comprising:
a welding torch body; a collar coupled to the torch body and configured to hold an electrode; a channel formed in the collar and configured to circulate coolant around the electrode; a supply conduit disposed in the torch body and configured to convey coolant to the collar; a gas conduit disposed in the supply conduit and configured to deliver shielding gas to the collar; a return conduit disposed in the supply conduit and configured to convey heated coolant away from the collar, the coolant flowing through the supply conduit insulating the torch body from the heated coolant flowing through the return conduit; and a structure disposed in the supply conduit, the structure having first and second channels formed therethrough, wherein the first channel comprises the return conduit and the second channel comprises the gas conduit.