Abstract: The present invention relates to a flux cored electrode used in electric arc welding and more particularly to the use of a specific form of magnesium particles in the core of the electrode or wire.

Abstract: A method of manufacturing a flux cored electrode is described that includes a titanium oxide based flux system having a low water content, which resists moisture absorption, and which reduces the amount of impurities transferred to a weld metal comprising: providing titanium dioxide, the titanium dioxide including purified titanium dioxide; providing a solution of colloidal metal oxide, the colloidal metal oxide having an average particle size of less than about 800 nm; mixing together the titanium dioxide and solution of colloidal metal oxide; and, drying the mixture at a temperature of at least about 400° C. for at least about 30 minutes until a moisture content of the mixture is less than about 1%; and, forming a metal electrode sheath so as to include the mixture in a core of the metal electrode sheath. The purified titanium oxide includes little or no impurities that can act as nucleation sites for carbide formation in a weld metal.

Abstract: A cored electrode to form a weld bead with a low diffusible hydrogen is described in a gas shielded electric arc welding process. The cored electrode includes a metal sheath and a fill composition. The filling composition includes a slag forming agent and at least two fluorine containing compounds.

Abstract: The present invention relates to a flux cored electrode used in electric arc welding and more particularly to the use of a specific form of magnesium particles in the core of the electrode or wire.

Abstract: A method of AC welding that includes the step of supplying AC current with a given waveform from a power source to an advancing electrode and workpiece. The AC current is used to melt the electrode and to thereby deposit metal from the electrode onto the workpiece. The electrode includes a particulate arc stabilizing compound. The particulate arc stabilizing compound includes sodium and titanium dioxide. The particulate arc stabilizing compound constitutes over 20% by weight of the core of the electrode.

Abstract: A titanium based welding flux that includes titanium dioxide and a moisture resistant agent. The titanium oxide includes purified titanium dioxide that includes little or no impurities that can act as nucleation sites for carbide formation in a weld metal. The moisture resistant compound includes a colloidal metal oxide.

Abstract: A method of AC welding, said method comprising: supplying from a power source an AC current with a given waveform between an advancing electrode and workpiece to melt the electrode and deposit metal from the electrode onto the workpiece by using an electrode with a particulate arc stabilizing compound of a grafted form of sodium and titanium dioxide, where the compound comprises over 20% by weight of the core.

Abstract: A welding flux that includes a flux agent, water glass and colloidal compound formed from small particles of silicon dioxide. The welding flux has a very low hygroscopicity, thus is well suited from low hydrogen electrodes.

Abstract: A flux cored, gas shielded arc welding electrode for depositing a weld metal with low diffusible hydrogen and having tensile strength greater than 90 Kpsi and a yield strength greater than 80 Kpsi. The electrode includes a nickel free steel sheath with a carbon content of less than 0.05% of the sheath and a core in the range of 13-17% of the electrode wherein the core includes primary alloy particles of iron, manganese, magnesium and nickel with a minor amount of secondary alloy particles of a silicon alloy and a boron alloy in a rutile based slag system. The nickel has a controlled amount in the general range of 1.0-2.0% by weight of the electrode and the rutile is 40-60% by weight of the core.

Abstract: A cored electrode to form a weld bead with little or no gas tracking. The cored electrode includes a metal sheath and a fill composition. The filling composition includes a slag forming agent and at least one fluorine containing compound.

Abstract: A flux cored electrode including a metal sheath surrounding a core of particles containing a flux system with dispersed magnesium particles in generally spherical shape and having a graded size to pass through a number 30 U.S. Standard sieve.

Abstract: A cored electrode to form a weld bead with a low diffusible hydrogen in a gas shielded electric arc welding process. The cored electrode includes a metal sheath and a fill composition. The filling composition includes a slag forming agent and at least two fluorine containing compounds.

Abstract: A welding flux that includes a flux agent, water glass and colloidal compound formed from small particles of silicon dioxide. The welding flux has a very low hygroscopicity, thus is well suited from low hydrogen electrodes.