US 11,633,814 B2Granted

Systems and methods for welding electrodes

AssigneeHobart Brothers Company

InventorsSteven Edward Barhorst, Mario Anthony Amata, Kevin Pagano

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Abstract

The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FACW). In one embodiment, a tubular welding wire includes a sheath and a core, and the core comprises a rare earth silicide component (cerium, lanthanum, or a combination thereof). The core may also comprise an organic stabilizer component, a carbon component, and an agglomerate. The organic stabilizer component may comprise an organic molecule or organic polymer bound to one or more Group I or Group II metals. The carbon component may comprise graphite, graphene, carbon black, lamp black, carbon nanotubes, diamond, or a combination thereof. The agglomerate may comprise oxides of one or more Group I or Group II metals, titanium, and manganese.

Claims10

Dependent claims

A tubular welding wire, comprising:

a steel sheath disposed around a granular core;
wherein the granular core comprises:
a rare earth silicide component;
and
an organic arc stabilizer component, wherein the organic arc stabilizer component is a cellulose polymer that includes Group I metal ions selected from the group consisting of lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs), or includes Group II metal ions selected from the group consisting of beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba), or a combination thereof, that are chemically bound to the cellulose polymer;
wherein the rare earth silicide component comprises cerium, lanthanum, or a combination thereof;
and
wherein the organic arc stabilizer component decomposes under conditions of an arc and releases hydrogen and releases the Group I metal ions, or the Group II metal ions, or the combination thereof, near a surface of a workpiece during arc welding.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/011,349Filed 18 Jun 2018 · division
Priority: 28 Aug 2012
Published: US 2018/0297151 A118 Oct 2018
Granted: 25 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

B23K 35/00
Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
B23K 35/0261
For use in welding: rods, electrodes or wires
B23K 35/368
Selection of non-metallic compositions, e.g. coatings or fluxes ; Selection of soldering or welding materials, conjoint with selection of…:…
B23K 35/38
Characterised by the composition or nature of the material: selection of media, e.g. special atmospheres for surrounding the working area

Family

Application13/596,713Parent of this continuation-in-part · filed 28 Aug 2012
Application13/743,178Parent of this division · filed 16 Jan 2013
US 9,199,341 B2Parent of this continuation-in-part · filed 1 Dec 2015
US 2018/0297151 A1Pre-grant publication · published 18 Oct 2018
US 9,999,944 B2Parent of this division
Application13/743,178Parent of this continuation-in-part
US 2014/0061166 A1Published application
US 2014/0061175 A1Published application
US 11,633,814 B2This patent

From the US filing history. Foreign family members aren’t listed.