Automatic arc welding process using a consumable nozzle

An automatic arc welding process for butt welding together two horizontally disposed base materials with the welding line in a horizontal plane, characterized in that said process comprises the steps of:

• placing a backing material on the backside of the welding line;
• placing a longitudinal horizontally disposed consumable nozzle, which is coated with an insulating material disposed therearound and has a hollow core portion, along a horizontal welding line between said base materials,
• placing powder flux on said consumable nozzle to form a shield from outer atmosphere,
• continuously feeding a horizontally disposed welding wire through said hollow core portion at a rate faster than said nozzle is being consumed;
• and
• generating arcs from both the consumable nozzle and the continuously moving welding wire to achieve deep penetration and to prevent the forward flow of the molten metal toward the nozzle enabling the formation of a large amount of deeply penetrated deposited metal.