Inco Alloys International, Inc.

The International Nickel Company, Inc.

Robert A Bishel

David B O'Donnell

Evan B Hinshaw

Thomas O Bates

Frank I Consaul

The invention provides an electroslag welding flux that is especially useful for welding copper-nickel alloys. The electroslag flux contains by weight percent 50 to 95 fluoride compound, 0 to 45 oxide compound, 1 to 25 rare earth-containing material, 1 to 45 potassium-containing material and 0 to 25 metallic. Advantageously, the flux contains by weight percent 60 to 90 fluoride compound, 5 to 40 oxide compound, 2 to 20 rare earth material, 1 to 20 metallic, 2 to 35 potassium-containing material, 0 to 15 carbonate and 0 to 35 binder. Most advantageously, the flux contains by weight percent 65 to 90 fluoride compound, 5 to 35 oxide compound, 2 to 15 rare earth-containing material, 1 to 15 metallic, 3 to 35 potassium-containing material, 0 to 5 carbonate and 1 to 35 binder.

Electroslag welding flux

The invention provides a coated electrode for producing a nickel-base weld deposit containing at least 12 weight percent chromium. The coated electrode includes a flux surrounding the core wire. The flux includes in parts by weight 5 to 35 strontium carbonate, 5 to 35 total metal carbonate compound, 0 to 20 manganese with at least 5 manganese present when less than 0.5 weight percent manganese is present in the core wire, 10 to 40 fluoride compound and 5 to 45 oxide compound. A binder is used to hold the flux to the core wire.

Flux for coated welding electrode

The invention provides a welding material for welding iron containing low CTE alloys. The filler metal contains 25-55% nickel, 0-30% cobalt, 0.05-0.5% carbon, 0.25-5% niobium and balance iron with incidental impurities. The welding material also is operable with fluxes for submerged arc welding. In addition, the welding material may be configured to function as a flux coated or flux-cored electrode.

Welding material for low coefficient of thermal expansion alloys

The invention provides a welding electrode useful for reducing nitrogen porosity in a weld. A metallic base having 1.5 to 6 weight percent titanium, balance essentially nickel is used. The resulting deposit has less than 0.5 weight percent titanium to ensure close match of tolerances. A flux is used in combination with the metallic base to control arc behavior, atmosphere content and slag characteristics.

Low porosity welding electrode

The invention provides a coated electrode suitable for welding stainless steel. The coated electrode uses a stainless steel core wire. The flux contains by weight percent a total of 0 to 14.5 alkali metal and aluminum fluoride, about 0.5 to 12.5 cerium fluoride, a total of about 10 to 30 alkali metal and manganese carbonate, about 2 to 25 cerium oxide plus zirconium, about 0 to 25 chromium, about 0 to 10 manganese, about 5 to 15 total metal fluorides, and balance rutile. A binder holds the flux to the stainless steel core.

Stable low fume stainless steel welding electrode

A flux for submerged-arc welding comprising a balanced combination of calcium fluoride, alumina, zirconia, cryolite, magnetite, manganese metal, nickel-niobium alloy, chromium-molybdenum alloy and alkali metal silicate binder.

Welding flux

A self-shielding, flux cored arc welding electrode for joining Ni-Cr-Fe alloys and overlaying dissimilar metals. The wire has a nickel-chromium containing alloy sheath and a flux core containing special proportions of carbonates, fluorides, metal oxides, and powdered metals. Sound welds can be prepared without the use of a supplemental inert shielding gas. Welded joints provide essentially the same properties as those of the Ni-Cr-Fe base alloy.

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Huntington, WV, United States of America

Robert A Bishel