Abstract:
Electric arc overlay welding, often called arc cladding, on a metallic backing, which in many cases is of steel. A barrier strip rests on the backing and a nonconsumable electrode arcs to the barrier strip. In one form of the invention the nonconsumable electrode oscillates back and forth across the barrier strip as it moves forward and in some cases it goes beyond the barrier strip and arcs to a previous weld bead beside the barrier strip. In one form of the invention the barrier strip is of green or unsintered compacted metal particles. The barrier strip may contain flux and it may contain deoxidizer.
Abstract:
An electroslag welding nozzle having a guide opening toward the middle and wing bars extending out at different sides, the nozzle being enrobed with an adhering coating of electroslag welding flux. In the electroslag welding process the nozzle is stationary and greatly increases the thickness of permissible vertical welds which can be made with a single electrode without horizontal oscillation.