Wire electrode with improved slag properties
AssigneeLincoln Global, Inc.
InventorVaidyanath Rajan
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Abstract
A metal core electrode used to form weld deposits having improved slag forming properties with respect to reduced accumulation of slag in toes of the weld bead. The metal cored electrode includes a metal rod and a fill composition. The electrode includes a slag-modifying additive that contains metallic indium and/or one or more indium compounds.
Claims79
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 that includes a slag-modifying additive, said slag modifying agent including metallic indium, indium compound or mixtures thereof.
A method of forming a weld bead having improved slag characteristics comprising:
- a) providing a welding electrode that includes a slag-modifying additive, said slag modifying agent including metallic indium, indium compound or mixtures thereof;
- and,
- b) at least partially melting said welding electrode by an electric current to cause said melted portion of said welding electrode to be deposited on a workpiece.
The method as defined in claim 76, wherein said fill composition includes about 0-1 weight percent iron sulfide, about 0.1-15 weight percent manganese, about 0.1-8 weight percent silicon, at least about 0.1-4 weight percent indium oxide, and at least about 70 weight percent iron powder.
Dependencies are inferred from the claim text.