Flux-cored wire formulation for welding
AssigneeHobart Brothers Company
InventorAnthony Nikodym
Life of this patent
Estimating the term…
Abstract
A weld wire having a core composition comprising a combination of graphite and a compound of potassium is disclosed. The combination of graphite and the compound of potassium in the core composition does not exceed approximately 5% by weight, making it possible for the wire to be used in an alternating current welding process without destabilizing a welding arc. The wire comprises the compound of potassium, which is K2MnTiO4, wherein the combination of graphite and the compound of potassium in the core composition is selected from the range of about 0.3% to about 5% by weight.
Claims30
A wire comprising a sheath encapsulating a core having a core composition, the core composition comprising a combination of graphite and a compound of potassium, wherein the compound of potassium is K2MnTiO4, the combination of graphite and the compound of potassium in the core composition not exceeding approximately 5% by weight, the wire capable of being used in an alternating current gas-metal arc welding process.
An alternating current gas-metal arc welding apparatus comprising:
- a gas-metal arc welding gun having means for feeding an electrode into the gas-metal arc welding gun;
- the electrode comprising a sheath encapsulating a core having a core composition, the core composition comprising a combination of graphite and a compound of potassium, the combination of graphite and the compound of potassium in the core composition not exceeding approximately 5% by weight;
- and
- a power source for supplying alternating electrical current to the electrode.
A alternating current gas-metal arc welding process comprising:
- providing an alternating current gas-metal arc welding apparatus having means for feeding an electrode into the gas-metal arc welding apparatus and means for supplying a shielding gas into the gas-metal arc welding apparatus;
- coupling the alternating current gas-metal arc welding apparatus to an alternating current power source and forming an arc;
- feeding the electrode into the alternating current gas-metal arc welding apparatus, the electrode comprising a sheath and a core having a core composition, the core composition comprising a combination of graphite and a compound of potassium, the combination of graphite and the compound of potassium in the core composition not exceeding approximately 5% by weight;
- and
- supplying the shielding gas into the alternating current gas-metal arc welding apparatus to shield the electrode and the arc.
Dependencies are inferred from the claim text.