Page 389 of 561
TIG WELDING TIG TORCH
General description
The Unitor TIG torches are lightweight torches well adapted to general applications onboard. To ensure full electrical insulation, the head of the torch is produced with a resilient, high-temperature non-conductive silicone coating.
ceramic cups, which are recognized by a light brown color. Note that TIG gas nozzles are brittle and may break if dropped or treated carelessly. A remote amperage control can be fixed on the TIG torch by velcro straps in order to adjust amperage during welding.
The replaceable heat-shield (3) in front of the torch head is made from teflon and has the combined function of forming a gas tight seal for the alumina nozzle (6) and of deflecting heat from the torch head. The torches are rated at 150A and 200A at 60% duty cycle. Cable and gas hose are protected by a heat and spatter resistant sheeting to ensure long working life. The handle ensures a secure grip and reduces heat transfer to the welder’s hand. A screw type gas valve opens fully at only 3/4 turn, switches the gas on and off. Being gas cooled, the torches have low weight and are easy to operate for repair and maintenance work in all positions. Used with the short back cap (1), the total length of the head, including nozzle, is less than 10 cm, ensuring accessibility in narrow spaces.
4.02
388
The torches are supplied with 4 m cable/hose package. Separate welding cable and gas hose (8) ensure that extensions may be easily connected. The gas connection fits directly onto the Unitor argon regulator or to the standard right hand threaded screw couplings for gas hoses. As standard, Unitor is supplying nozzles of aluminium oxide (AL203), recognizable by the pink colour. These nozzles will stand for higher temperatures than the ordinary
Accessories
The torches are supplied complete for use, but the accessories kit is recommended as it contains necessary spares.
NB:
TIG welding of aluminium use electrode with rounded tip. Use Alumina nozzle no 8. This will give better gas shielding.