Abstract: A tubular welding wire includes a granular core and a metal sheath encircling the granular core. Furthermore, the metal sheath includes at least approximately 0.3% manganese by weight and at least approximately 0.05% silicon by weight.

Abstract: The present invention provides flux cored wire for welding duplex stainless steel which refines the solidified crystal grains for obtaining weld metal superior in toughness and ductility, characterized by containing, as the chemical ingredients included in the steel sheath and flux, by mass % with respect to the mass of the wire as a whole, C: 0.001 to 0.1%, Si: 0.01 to 1.0%, Mn: 2.0 to 6.0%, Cr: 17.0 to 27.0%, Ni: 1.0 to 10.0%, Mo: 0.1 to 3.0%, Al: 0.002 to 0.05%, Mg: 0.0005 to 0.01%, Ti: 0.001 to 0.5%, and N: 0.10 to 0.30%, further limiting P to 0.03% or less and S to 0.01% or less, satisfying 0.73×Cr equivalents?Ni equivalents?4.0 and Ti (mass %)×N (mass %)?0.0004, and having a balance of iron and unavoidable impurities.

Abstract: The invention relates to a filler material for a thermal production of a joint or of a material layer metallically connected to the base material of or on objects of light metal and/or zinc alloys with a thermal conductivity of more than 110 W/mK, and to a method for producing the same with means for the preparation thereof in situ and/or storage. To improve the quality of the connection, it is provided according to the invention that the filler material is formed as unwindable filler wire, built up of a sheath optionally provided with a surface layer formed from polymer(s) and graphite and comprising aluminum and/or magnesium and/or zinc or a deformable alloy of these metals with a thermal conductivity of more than 110 W/mK and a core of compacted powder, whereby the core material comprises a metal powder and/or a powder of at least one metal compound and/or a non-metallic compound and/or an agent giving off gas at increased temperature and/or at least one component forming slag.

Abstract: A metal cored electrode used to form a weld metal on a workpiece having improved yield strength, tensile strength and impact toughness by the combination of molybdenum, titanium and boron, the electrode containing at least about 0.001 weight percent boron, at least about 0.05 weight percent molybdenum, at least about 0.005 weight percent titanium and a majority of iron, the above metal alloy system having an average yield strength of at least about 70 ksi and an average tensile strength of at least about 90 ksi.

Abstract: The present invention is a weld wire comprising a sheath encapsulating a metal core made of powdered metal, wherein a fill percentage of the metal core is no less than approximately 12%. The metal core comprises a core composition alloyed with an alloying element or an combination of elements comprising Cr, Mo, V, W, Hf and Nb or combinations thereof, wherein a total weight percentage of the alloying element or the combination of elements in the core composition does not exceed approximately 1%. In a particular embodiment, the alloying element is Mo in the amounts selected from the range of about 0 to about 0.5 percent by weight and the fill percentage of the metal core is selected from the range of about 12% to about 30%. In a particular embodiment of the invention, the total percentage of the combination of elements is selected from the range of about 0.4% to about 0.8%.

Abstract: A filler wire (consumable) for depositing wear-resistant materials in a system for any of brazing, cladding, building up, filling, hard-facing overlaying, welding, and joining applications. The consumable is composed of base filler materials consistent with commonly known compositions. For example, the base filler material can comprise standard materials used in many standard mild steel wires. In addition to the base filler materials, the consumable includes wear-resistant materials. The wear-resistant materials include at least one of diamond crystals, diamond powder, tungsten carbide, and aluminides.

Abstract: A filler wire (consumable) for depositing wear-resistant materials in a system for any of brazing, cladding, building up, filling, hard-facing overlaying, welding, and joining applications is provided. The consumable is composed of base filler materials consistent with commonly known compositions. For example, the base filler material can comprise standard materials used in many standard mild steel wires. In addition to the base filler materials, the consumable includes wear-resistant materials. The wear-resistant materials include at least one of amorphous metallic powder, diamond crystals, diamond powder, tungsten carbide, and aluminides.

Abstract: A cored electrode having reduced moisture pick-up properties and which forms a weld bead with low diffusible hydrogen in a gas shielded electric arc welding process. The cored electrode includes a metal sheath and a fill composition. The fill composition includes titanium dioxide, slag forming agent and a sodium-silica-titanate compound.

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: 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 (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core. The tubular welding wire includes less than approximately 0.4% manganese metal or alloy by weight, and the tubular welding wire is configured to form a weld deposit having less than approximately 0.5% manganese by weight.

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 (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core. Further, the core includes a carbon source and an agglomerate having a Group I or Group II compound, silicon dioxide, and titanium dioxide. Additionally, the carbon source and the agglomerate together comprise less than 10% of the core by weight.

Abstract: A manufacturing method is presented for manufacturing cored welding electrode, including provision of a cored electrode structure with core fill material substantially enclosed within a sheath material, and application of a sodium based feeding lubricant to the cored electrode structure. A cored welding electrode is provided, including a tubular sheath material with a center core area, a core fill material within the core area, and a sodium based lubricant coating on the sheath material, wherein the lubricant comprises sodium sulfate, sodium carbonate, and/or sodium nitrite.

Abstract: A method for producing superalloy weld wire and weld wire having fewer inclusions, and specifically fewer hafnia inclusions, and superalloy weld wire, particularly hafnium-containing superalloy weld wire, produced by this method. The method includes producing directionally solidified cast rod in a diameter of less than about ½ inch. The rod preferably is produced by investment casting or by continuous casting. The directional solidification process results in rod having inclusions such as oxides and dirt segregated into portions of the casting where they are easily removed. The cast rod can then be formed into semi-finished weld wire using a single extrusion step, followed by grinding to the final required diameter.

Abstract: Powder which is for a flux-cored wire intended to become alloyed with a molten metal bath and which is formed by particles composed with at least 95% of sulphur, characterised in that its granulometric population is defined by: ?1 ?m?d10?340 ?m; ?200 ?m d50?2000 ?m; ?500 ?m d90?2900 ?m. Sulphur-based flux-cored wire, characterised in that it contains the preceding powder, and in that the compaction rate of the powder within the wire is greater than or equal to 85%. Method for producing a sulphur-based flux-cored wire for alloying with molten metal baths.

Abstract: A flux cored wire for duplex stainless steel and a manufacturing method thereof are provided. The flux cored wire can include a sheath and a flux filled into the sheath. The flux cored wire comprises about 24.0-30.0 wt % Cr, about 7.0-10.5 wt % Ni, about 2.0-4.0 wt % Mo, about 0.10-2.50 wt % Cu, about 0.40-1.00 wt % Si, about 1.5-3.0 wt % Mn, about 0.10-0.30 wt % N compound (converted value of N), and the remainder including Fe and inevitable impurities on the basis of the total weight of the wire. The flux comprises about 6.50-12.00 wt % of TiO2+SiO2+ZrO2+Al2O3, about 0.10-0.50 wt % of Li2O+K2O+Na2O, about 0.10-2.00 wt % of the other oxides, and about 0.10-0.50 wt % of metal fluoride (converted value of F) on the basis of the total weight of the wire. The flux can be filled into the sheath at a ratio of about 26-35%.

Abstract: A hard composite composition comprises a binder; and a polymodal blend of matrix powder. In an embodiment, the polymodal blend of matrix powder has at least one local maxima at a particle size of 30 ?m or less, at least one local maxima at a particle size of 200 ?m or more, and at least one local minima between a particle size of about 30 ?m to about 200 ?m that has a value that is less than the local maxima at a particle size of 30 ?m or less.

Abstract: A manufacturing process is disclosed for manufacturing cored welding electrode, wherein calcium based drawing lubricant is applied to an outer surface of a flux cored welding electrode structure, and a drawing process is thereafter carried out to compact the core fill material and to set the final outer wire diameter. Cored welding electrodes are disclosed having calcium hydroxide within the electrode core, on the sheath, and/or in a sheath seam.

Abstract: The electrical resistance between a welding wire used for arc welding and the welding gun contact tip through which it passes is reduced by providing on the surfaces of the welding wire a solid conductor comprising an electrically conductive perovskite or other thermally stable, electrically conductive particulate solid.

Abstract: Methods are presented for reducing reactivity of ferroalloys used in the manufacture of stick welding electrodes with ferroalloy coatings, in which surface metal silicon of ferroalloy powder is stabilized by dissolving or prereacting the surface silicon or silicon dioxide to provide stabilized ferroalloy powder with decreased surface reactivity to caustic silicate solutions that can be mixed with silicate solution to form a slurry for coating precut welding rods.

Abstract: Various flux compositions for increasing carbon contents in welds are disclosed. The flux compositions can be provided in a variety of different forms such as in an agglomerated form, fused form, sintered form, or provided as a coating. The fluxes are particularly adapted for use in submerged arc welding processes.

Abstract: A core composition of a metal-cored wire comprising a combination of graphite and potassium compounds has been proven to stabilize the arc in a straight polarity welding configuration. In particular, adding a combination of graphite and potassium manganese titanate (K2MnTiO4) and potassium sulfate (K2SO4) in the preferred combination of graphite and potassium compounds from the range of about 0.3% to about 5.

Abstract: The present invention is a weld wire comprising a sheath encapsulating a metal core made of powdered metal, wherein a fill percentage of the metal core is no less than approximately 12%. The metal core comprises a core composition alloyed with an alloying element or an combination of elements comprising Cr, Mo, V, W, Hf and Nb or combinations thereof, wherein a total weight percentage of the alloying element or the combination of elements in the core composition does not exceed approximately 1%. In a particular embodiment, the alloying element is Mo in the amounts selected from the range of about 0 to about 0.5 percent by weight and the fill percentage of the metal core is selected from the range of about 12% to about 30%. In a particular embodiment of the invention, the total percentage of the combination of elements is selected from the range of about 0.4% to about 0.8%.

Abstract: A cored electrode for arc welding wherein the electrode has a core in which the fill material includes a manganese-containing composite particle. A method for arc welding comprises providing a cored electrode having a core of fill material including a composite particle containing manganese, and applying a voltage to the electrode upon contacting a work piece to cause the electrode to melt and form a weld metal bead.

Abstract: An article is made by preparing an elongated preform having a net metallic composition, and including a tubular sheath made of a sheath nickel-base alloy, and a core disposed within the tubular sheath and including consolidated powder particles made of a core nickel-base alloy. The net metallic composition is preferably a nickel-base superalloy, and most preferably a high-gamma-prime nickel-base superalloy. The preform is wire drawn to a final maximum transverse size that is less than the initial maximum transverse size, to produce a drawn article. The drawn article may be used as a weld filler material.

Abstract: Deep penetration gas tungsten arc welds are achieved using weld penetration containing one or more compounds selected from the group of compounds consisting of a) a titanium oxide, b) nickel oxide, c) a metal silicide, and d) mixtures of these compounds a flux containing at least two titanium oxides, nickel oxide, and a manganese silicide is particularly useful for welding a side variety of maerial including nickel-based alloys and carbon and stainless steels. The flux can be applied as a paste, as part of a cored wire or rod coated on the exterior of a filler wire or rod. Alternatively, it can be mixed with a polymeric binder and applied to the weld zone as a hot melt, paint, tape, adhesive, rod, wire or a stick.

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 K2 MnTiO4, 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.

Abstract: A flux-cored wire for gas-shielded arc welding comprises a steel sheath, and a flux filled in the steel sheath. The flux-cored wire has a C content of 0.20% by mass or below, a Si content in the range of 0.06 to 1.10% by mass, a Mn content in the range of 0.55 to 1.60% by mass, a Cr content of 2.60% by mass or below, a Mo content in the range of 0.30 to 1.50% by mass, a Mg content in the range of 0.20 to 1.50% by mass, a N content in the range of 0.005 to 0.035% by mass and a B content in the range of 0.001 to 0.020% by mass on the basis of the total mass of the flux-cored wire. The flux has a TiO2 content in the range of 4.2 to 8.2% by mass and a fluorine compound content in terms of F content in the range of 0.025 to 0.55% by mass on the basis of the total mass of the flux-cored wire, and the flux-cored wire has an Al content of 0.50% by mass or below, a Nb content of 0.015% by mass or below, and a V content of 0.015% by mass or below on the basis of the total mass of the flux-cored wire.

Abstract: A cored wire electrode with a sheath and a multiplex powder composite for use in a thermal spray or welding apparatus. The composite comprises micron-sized particles and sub-micron sized particles, including nano-scale particles, the particles mechanically cooperating to promote smooth powder flow, which facilitates compaction of the cored wire electrode. The invention also includes a method of manufacture of the cored wire electrode and its method of use.

Abstract: A method is proposed for arc spraying by means of a spray gun (1). The spray gun includes two electrically conductive spray wires (2) and at least one first supply device (3) for supplying a fluid (4), with an electrical voltage being applied to the spray wires (2), the spray wires (2) being fed by means of a wire guide (5), an arc (6) being ignited by the electrical voltage, the spray wires (2) being converted into a melt (8) in a melting region (7) and the melt (8) being applied by the fluid (4) to the surface (9) of a body (10). In this connection, particles (11) from a storage container (12) are supplied to the melt (8) by the fluid (4).

Abstract: Disclosed is a basic flux cored wire having a mild steel or an alloy steel sheath filled with flux, characterized in that the flux essentially consists of, with respect to the total weight of the wire: 0.3 to 3.0% Ti and Ti oxide (TiO2-converted value); 1.0 to 2.5% Si and Si oxide (SiO2-converted value); 0.1 to 1.5% Mg and Mg oxide (MgO-converted value); 1.5 to 4.0% Mn and Mn oxide (MnO-converted value); 0.2 to 1.5% Al and Al oxide (Al2O3-converted value); 0.1 to 1.0% Zr and Zr oxide (ZrO2-converted value); 0.2 to 3.5% CaF2; and 0.01 to 0.5% K2O, with the proviso that the components satisfy the basicity of 0.5 to 4.5 in the basicity equation (1) defined as B=(CaF2+MgO+MnO+K2O)/(TiO2+SiO2+Al2O3+ZrO2). The basic flux cored wire of the present invention is excellent in crack resistance and low temperature toughness, and exhibits excellent welding workability in all welding positions, ensuring an improvement in the efficiency of welding work.

Abstract: A cored electrode for arc welding wherein the electrode has a core in which the fill material includes a manganese-containing composite particle. A method for arc welding comprises providing a cored electrode having a core of fill material including a composite particle containing manganese, and applying a voltage to the electrode upon contacting a work piece to cause the electrode to melt and form a weld metal bead.

Abstract: Hardfacing to protect wear surfaces of drill bits and other downhole tools having coated cubic boron nitride particles or coated particles of other ceramic, superabrasive or superhard materials dispersed within and bonded to a matrix deposit. The coating on the ceramic particles or particles of other hard materials may be formed from materials and alloys such as tungsten carbide, and tungsten carbide/cobalt and cermets such as metal carbides and metal nitrides. The coated particles are preferably sintered and have a generally spherical shape. The coated particles are pre-mixed with selected materials such that welding and cooling will form both metallurgical bonds and mechanical bonds within the solidified matrix deposit. A welding rod may be prepared by placing a mixture of selected hard particles such as coated cubic boron nitride particles, hard particles such as tungsten carbide/cobalt, and loose filler material into a steel tube.

Abstract: The present invention discloses a pit and blow hole resistant flux-cored wire for gas-shielded arc welding of a galvanized steel sheet. Here, an amount of flux ranges from 10 to 20% by weight of the wire, and an amount of a mild steel sheath ranges from 80 to 90% by weight of the wire. The flux comprising iron powder, deoxidizer and arc stabilizer in a residual amount is filled in the mild steel sheath. In detail, the flux contains a slag generation agent in an amount of 2 to 15% by weight of the wire, silicon oxide in an amount of 1.0 to 10 wt %, a component containing at least two components containing metal titanium, selected from the group consisting of metal titanium, metal magnesium and alloy mixtures thereof in an amount of 0.4 to 3 wt %, and one of sodium fluoride and potassium fluoride in an amount of 0.1 to 1 wt %. Accordingly, even when a plated layer is thick, it is possible to minimize generation of pits and blow holes in the welding.