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| Number | Title | Issue Date |
| 8101004 | Process for manufacturing steel blanks The invention relates to a manufacturing process for steel blanks. The invention relates in particular to a manufacturing process of a steel blank comprising electroslag remelting (ESR—ElectroSlag Remelting) or vacuum arc remelting (VAR—Vacuum Arc Remelting) to ... | 01/24/2012 |
| 8083830 | Slag for electroslag remelting for copper alloy and method for producing copper alloy material An object of the invention is to make it possible to produce a copper alloy in which the S content is reduced with no contamination with Al, which has a good casting surface and good internal properties and in which eutectic compounds are refined. The invention rela... | 12/27/2011 |
| 7316057 | Method of manufacturing a rotating apparatus disk A method (20) of fabricating a large component such as a gas turbine or compressor disk (32) from segregation-prone materials such as Alloy 706 or Alloy 718 when the size of the ingot required is larger than the size that can be predictably formed with... | 01/08/2008 |
| 7261760 | Member having separation structure and method for manufacture thereof A member having a separated structure made by an alloy consisting of two regions having different compositions with each other is formed by casting a molten alloy into a prescribed shape, or by spray-quenching the same from a temperature of Tc+10° C. or more, where... | 08/28/2007 |
| 6610119 | Nickel-molybdenum alloys High molybdenum, corrosion-resistant alloys are provided with greatly increased thermal stability by controlling the atom concentrations to be Nia Mob Xc Yd Ze, where: a is between about 73 and 77 atom... | 08/26/2003 |
| 6416564 | Method for producing large diameter ingots of nickel base alloys A method of producing a nickel base alloy includes casting the alloy within a casting mold and subsequently annealing and overaging the ingot at at least 1200° F. (649° C.) for at least 10 hours. The ingot is electroslag remeelted at a melt rate of at l... | 07/09/2002 |
| 6383316 | Cold drawn wire and method for the manufacturing of such wire Through electro slag refining of a bloom of a stainless, precipitation hardenable stainless steel of 17-7 PH type, the fatigue resistance of springs made of cold drawn wires of said material is increased substantially. This depends on the fact that large ... | 05/07/2002 |
| 6368375 | Processing of electroslag refined metal In a method and apparatus for the electroslag refining of metal, the method includes providing a refining vessel to contain an electroslag refining layer floating on a layer of molten refined metal. The refining vessel representing an upper part of a cool... | 04/09/2002 |
| 6264717 | Clean melt nucleated cast article An article that comprises a fine-grain, homogeneous microstructure is essentially oxide- and sulfide-free and segregation defect free. The article is produced by a process that comprises forming a source of clean refined metal that has oxides and sulfides... | 07/24/2001 |
| 6180266 | Cutting tool A cutting tool having cutting edges made of a high speed tool steel exhibiting very high wear and anti-chipping resistances, and sufficient toughness is provided. The high speed tool steel consists essentially of by weight C:0.6 to 1.8%, Si:1.2% max, Mn:0... | 01/30/2001 |
| 5810904 | Process for producing blocks of metals In a process for producing blocks of metals, in particular steels and nickel-base and cobalt-base alloys, by remelting self-consumable electrodes under electrically conductive slag in an atmosphere of controlled composition, the operation of melting down ... | 09/22/1998 |
| 5720830 | Engineering ferrous metals and method of making thereof A method of making an engineering ferrous metal comprising the steps of adding to liquid engineering ferrous metal solid alloy carbide particles and thereafter permitting the ferrous metal to solidify. The alloy carbide particles are coated with iron or a... | 02/24/1998 |
| 5702500 | Integrated process for the recovery of metals and fused alumina from spent catalysts An integrated process for the treatment of spent catalysts containing mainly molybdenum, vanadium, nickel, cobalt and, alumina to produce ammonium metavanadate, vanadium pentoxide, molybdic trioxide, fused alumina and a high grade nickel/cobalt alloy esse... | 12/30/1997 |
| 5649993 | Methods of recycling oversray powder during spray forming A method for the recycling of overspray powder during spray forming is provided. The method involves providing a refining vessel to contain an electroslag refining layer floating on a layer of molten refined metal. An ingot of unrefined metal is lowered i... | 07/22/1997 |
| 5441578 | Method for producing soft magnetic alloys with very high permeability and alloys resulting therefrom Method for producing soft magnetic alloys with very high permeability, in which an ingot is cast containing in its composition more than 70% nickel or more than 45% cobalt, the metal having, or not having, been subjected to a secondary metallurgical step,... | 08/15/1995 |
| 5234486 | Method for remelting reactive metals For the remelting of titanium or zirconium, the electroslag remelting method is used. To prevent any reaction of the melt with oxygen or nitrogen, the remelting is performed in an inert gas atmosphere. Fluorspar with an addition of calcium oxide is used a... | 08/10/1993 |
| 5021084 | Process for improving high-temperature alloys This invention is the electron beam evaporation and deposition(EBED) process which produces high purity and ultrafine grain size in high-temperature and reactive metal alloys. These properties are important in metals used in aircraft gas turbine component... | 06/04/1991 |
| 4726840 | Method for the electroslag refining of metals, especially those having alloy components with an affinity for oxygen Method for the electroslag refining of metals of which at least 50 weight-percent are in the form of at least one current-carrying consumable electrode, especially one having alloy components with an affinity for oxygen, wherein the metals are remelted to... | 02/23/1988 |
| 4678506 | Production of titanium articles that are free from low density inclusions The production of titanium articles that are free from low-density inclusions by the use of titanium sponge particles for melting which particles have substantially a maximum particle size of -6 mesh and finer, preferably -8 mesh and finer.... | 07/07/1987 |
| 4619692 | Process for the production of metallic semi-finished products A process for the production of metallic semi-finished products which contains one or several alloys and has at least two zones with different nitrogen content. An electrode is remelted by pressure electroslag remelting, wherein the remelting process occu... | 10/28/1986 |
| 4537745 | Method of producing copper-chromium fusion alloys as contact material for vacuum power switches A method of producing copper-chromium fusion alloys having a chromium content of at least 25% by mass and at most 60% by mass with a homogeneous macrostructure without lattice defects and without shrink holes or pipes, which can be used as contact materia... | 08/27/1985 |
| 4450007 | Process for electroslag remelting of manganese-base alloys An electroslag remelting process for manganese-base alloys. The process includes the steps of: partially immersing a consumable electrode of a manganese-base alloy in a layer of molten slag and passing current between the consumable electrode and a second... | 05/22/1984 |
| 4434001 | Method for manufacturing metal from fine-grain metal-oxide material A method for producing fine-grain iron-containing metal oxide material, the method comprising a first reduction stage wherein the oxide material is at least partially reduced in a fluidized state at a temperature of approximately 1025°-1275° K. by a red... | 02/28/1984 |
| 4431443 | Methods of vacuum arc melting A method is provided for substantially eliminating metal condensates on the walls of a vacuum arc melting vessel above a molten metal pool by the step of providing an atmosphere of non-condensible gas in the vessel above the molten metal pool during the m... | 02/14/1984 |
| 4312666 | Steel making process Residual materials which become available in metallurgy and contain oxides and volatilizable non-ferrous metals or compounds thereof are treated in a rotary kiln with solid carbonaceous reducing agents and are thus directly reduced in a high proportion to... | 01/26/1982 |
| 4297132 | Electroslag remelting method and flux composition An improved method is disclosed for electroslag remelting an electrode of an alloy containing at least one oxide forming ingredient, including melting such electrode in a novel flux composition containing about 1-35% boron oxide, by weight.... | 10/27/1981 |
| 4198229 | Method of dephosphorization of metal or alloy A carbon-unsaturated molten metal or molten alloy containing elements more oxidizable than iron such as chromium and silicon is dephosphorized by addition of a flux composition comprising calcium carbide and a halide of alkali earth metal such as calcium ... | 04/15/1980 |
| 4184869 | Method for using flux and slag deoxidizer in ESR process A method of controlling contamination of, and alloy variations in the remelted product of an electro-slag refining (ESR) or remelting process. More particularly, this invention is directed to a slag forming flux, to the timing and/or manner in which the f... | 01/22/1980 |
| 4177058 | Method for producing a non-split metal workpiece formed as a cast hollow billet with a bottom part Premelted slag and metal of a specified composition are poured into a recacle. Thereafter, electroslag remelting of consumable electrodes is carried out in a slag pool formed in the receptacle. As the poured-in metal and remelted metal solidify, a non-sp... | 12/04/1979 |
| 4177059 | Production of yttrium This invention relates to refining yttrium. Known methods of refining yttrium involve the use of expensive crucibles made from tantalum or tungsten which are only available in relatively small sizes. According to the present invention there is provided a ... | 12/04/1979 |
| 4161398 | Method for electroslag remelting of a copper-nickel alloy A copper-nickel alloy is remelted to form high quality ingots or slabs which are capable of undergoing hot-working in the "as cast" form by electroslag remelting the alloy under a flux composition prepared by fusing a mixture consisting essentially of fro... | 07/17/1979 |
| 4161399 | Method for electroslag remelting of a manganese-copper-nickel alloy A manganese-copper-nickel alloy is remelted to form high quality ingots or slabs which are capable of undergoing hot-working in the "as cast" form by electroslag remelting the alloy under a flux composition prepared by fusing a mixture consisting essentia... | 07/17/1979 |
| 4116690 | Flux for use in electroslag refining process A flux for use in an electroslag refining system utilizing 5 - 20% of the material bastnasite, a mixed rare-earth, fluocarbonate mineral, with the balance of the flux designed using primarily: Calcium fluoride (CaF2) Aluminum Oxide (Al2 O... | 09/26/1978 |
| 4061493 | Method for removing undesired elements, particularly H2 and O2, in electroslag remelting and an arrangement for carrying out the method An electroslag remelting or refining method and arrangement for removing undesired elements, particularly H2 and O2, from metals. A water-cooled mold having a bottom plate is adapted to being raised in known manner. A growing metal i... | 12/06/1977 |
| 4027720 | Method of producing homogenous ingots of high-melting, nitrogen-containing alloys In a method of producing homogenous ingots of high-melting, nitrogen-containing alloys, whose nitrogen contents are above the solubility limit at atmospheric pressure, according to the electric slag remelting process and using a pressure above atmospheric... | 06/07/1977 |
| 3998623 | Method of producing alloys containing titanium carbide Alloys based on iron, nickel or cobalt and containing titanium carbide are produced by melting techniques. A melt containing only one of the two elements of titanium carbide is combined with the other element and caused to solidify immediately thereafter ... | 12/21/1976 |
| 3997332 | Steelmaking by the electroslag process using prereduced iron or pellets Structurally sound steel ingots are produced by the conventional electroslag process using prereduced iron ore pellets containing as much as 2.8% oxygen pressed into a bar shape as a consumable electrode. A carbon source, such as silicon carbide or titani... | 12/14/1976 |
| 3988147 | Methods of decarburization of molten ESR slags and reduction of carbon pick up in corrosion resistant alloys A method of decarburizing molten ESR slags to reduce carbon pick up in corrosion resistant alloys is provided in which Fe2 O3 is added to the molten slag prior to remelting the metallic electrode in amounts sufficient to reduce carbo... | 10/26/1976 |
| 3982925 | Method of decarburization in ESR-processing of superalloys A method of decarburizing ESR slags to reduce carbon pick up in superalloys is provided in which NiO is added to the slag prior to remelting the metallic electrode in amounts sufficient to reduce carbon in the slag to a desired level.... | 09/28/1976 |
| 3980468 | Method of producing a ductile rare-earth containing superalloy A method is provided for producing ductile superalloys containing rare-earth metals, lanthanum and yttrium by melting the desired alloy composition by conventional melt practices, adding the rare-earth metals, lanthanum or yttrium to the molten compositio... | 09/14/1976 |
