Patent ID: 9149891
Filing Date: 2015-10-06
Classification: B23K

Abstract:
1. A metal electrode to form a weld bead with improved slag forming properties with respect to reduced accumulation of slag in toes of the weld bead comprising a metal rod, said metal rod comprising a hollow core and a fill composition that is at least partially included in said hollow core, said metal rod or said fill composition further comprising at least one slag-modifying additive, said slag modifying agent selected from the group consisting of metallic indium and indium compounds, said indium compounds selected from the group consisting of indium antimonide, indium fluoride, indium oxide, indium sulfate, indium sulfide, or mixtures thereof, said metallic indium or indium compounds causing slag deposits or islands on said weld bead to more easily be removed from said weld bead and to form at positions away from said toes of said weld bead when compared to said weld bead without the addition of said metallic indium, indium compounds or mixtures thereof for mild and low alloy steel weld beads.