Gas tungsten arc welding torch

Details Gas tungsten arc welding torch Gas tungsten arc welding torch

B - Operations, Transporting

23

K

327/52

B23K 9/16 (2006.01) B23K 9/29 (2006.01)

Patent

CA 1140995

11 48,305 ABSTRACT OF THE DISCLOSURE A gas tungsten arc welding torch having an elon- gated gas nozzle (18) with an oblong cross section de- signed for deep groove, narrow gap welding. The nozzle is rotatable coupled to and communicates with a gas port within the main torch body (16) and defines a gas passage along the length of the welding electrode (10), which extends through the longitudinal axis of the nozzle. The nozzle (18) includes a detachable end section (42) which captures and supports a replaceable gas lens (30) disposed within the gas passage of the nozzle within 7/8 to 1 inch from the nozzle orifice (40), and traverse to the direc- tion of gas flow. The electrode (10) is formed from a solid tungsten rod center (12) and a concentric outer sleeve (14) substantially lower in electrical resistivity than the tungsten rod, which is adhesively and cohesively bonded to the tungsten. The outer sleeve extends from the point of electrical connection (32) within the main torch body (16) to a point on the tungsten electrode downstream of the gas lens. The nozzle is sealably mounted (38) to the main torch body and readily detachable for easy re- placement.

359880

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