Class / Patent application number | Description | Number of patent applications / Date published |
075100650 | Melting or holding melt | 18 |
20110219912 | METHOD FOR THE PRODUCTION OF A .beta.-y-TiAL BASE ALLOY - A method for the production of a γ-TiAl base alloy by vacuum arc remelting, which γ-TiAl base alloy solidifies via the (β-phase (β-γ-TiAl base alloy), comprises the following method steps:
| 09-15-2011 |
20120297925 | ELECTRIC FURNACE FOR PRODUCING MOLTEN METAL HAVING MATERIAL RECYCLING CAPABILITY - The present invention relates generally to a smelting operation or the like, by which molten metal is produced from a metal oxide after metal oxide agglomerates are directly reduced and melted with a carbonaceous material in an electric heating and melting furnace. More specifically, the present invention relates to an electric furnace for producing molten metal that has material recycling capability, especially in-process material recycling capability. | 11-29-2012 |
20130269482 | RECUPERATED ISOTHERMAL MELTER AND RELATED METHODS - An energy efficient metal melter is disclosed, said melter having a portion of melting energy supplied to it by a combustion process for heating a melter charge to a temperature where the melter charge can no longer maintain its shape. A portion of melting energy is also supplied to that melter by an electrical process for adding remaining transformational and sensible heat. Preferably, the combustion process uses a hydrocarbon fuel energy source selected from a distillate compound, gas compound or both and the electrical energy comes from a source selected from an external power grid, a generator and combinations thereof. Related methods are also disclosed. | 10-17-2013 |
20130276581 | Methods of Using Tires and Scrap Rubber in the Manufacture and Melting of Steel and Other Metals - A method of using scrap rubber and other scrap materials, such as tires or parts or pieces of tires, to manufacture or melt steel and other metals in a furnace is disclosed. The scrap rubber may be used as a carbon source for the manufacture of steel and other metals, and may be used as an energy source to melt the scrap metal used to make the steel and other metals. The net benefit of this method includes reducing the amount of scrap rubber, such as tires, to be sent to a waste disposal facility or landfill, thereby improving the environment. In addition, by increasing the use of scrap rubber as a source of energy for steel or metal production, less energy is required from other sources. | 10-24-2013 |
20140096644 | ALUMINUM MELTING APPARATUS - A method and apparatus for melting aluminum uses a dense metal salt of Rubidium, Cesium, or Strontium. The salt is melted by a stinger and then superheated by AC applied to electrodes immersed in the salt. Aluminum in contact with the salt melts and floats on the salt. In continuous scrap melting, inflows and outflows of aluminum are comparable and may be shielded by inert gas. The superheated salt may be purified and may be heated in a separate reservoir and pumped to and from another reservoir containing salt and/or metal. The salt may be used to supplement the heating of an existing furnace. | 04-10-2014 |
20140305261 | Method And A Control System For Controlling A Melting And Refining Process - A method and device for controlling a melting and refining process in an electric arc furnace for melting a metal, wherein the electric arc furnace includes molten and solid metal and a slag layer on the surface of the molten metal, wherein an electromagnetic stirrer is arranged for stirring the molten metal. The method includes calculating/determining masses of the molten and solid metal at a point of time, wherein the calculation is based on initial values of the molten and solid metal, an arc power supplied to the electric arc furnace, and temperatures of the molten and solid metal, determining a stirring power based on the calculated/determined masses, and supplying the determined stirring power to the electromagnetic stirrer. | 10-16-2014 |
20150047465 | METHOD FOR THE INTEGRATION OF CARBOCHLORINATION INTO A STAGED REFORMING OPERATION AS AN ALTERNATIVE TO DIRECT RESIDUE OXIDATION FOR THE RECOVERY OF VALUABLE METALS - Method of combining industrial processes having inherent carbon capture and conversion capabilities offering maximum flexibility, efficiency, and economics while enabling environmentally and sustainably sound practices. Maximum chemical energy is retained throughout feedstock processing. A hybrid thermochemical cycle couples staged reforming with hydrogen production and chlorination. Hydrogen generated is used to upgrade feedstocks including bitumen, shale, coal, and biomass. Residues of upgrading are chlorinated, metals of interest are removed, and the remainder is reacted with ammonia solution and carbon dioxide to form carbonate minerals. The combination provides emissions free production of synthetic crude oil and derivatives, as well as various metals and fertilizers. Sand and carbonate minerals are potentially the only waste streams. Through this novel processing, major carbon dioxide reduction is afforded byminimizing direct oxidation. Supplemental heat to run the reactions is obtained through external means such as concentrated solar, geothermal, or nuclear. | 02-19-2015 |
20160153072 | MELTING METHOD FOR ALLOYS | 06-02-2016 |
075100660 | Producing or treating Iron(Fe) or Iron alloy | 10 |
20090293671 | Electric Arc Furnance Steelmaking - Efficient coordination of processing (by desulphurising) and moving hot metal from a direct smelter, producing hot metal on a continuous basis, to an electric arc furnace DIRECT or furnaces, operating on a batch basis, is disclosed. The invention includes the use of hot metal storage devices, such as ladles, that are large enough to supply hot metal for a small number, preferably two or three, of electric arc furnace batch operations. | 12-03-2009 |
20100175506 | TOUGHENED GRAPHITE ELECTRODES FOR ELECTRIC ARC FURNACES - The present invention is directed to a method for producing a carbon fiber-pitch binder composition, the method comprising combining surface-modified carbon fibers with a molten pitch binder such that the surface-modified carbon fibers are substantially homogeneously dispersed throughout said molten pitch binder, wherein said surface-modified carbon fibers possess a surface that has been modified in a manner that increases the dispersability of the carbon fibers into said molten pitch binder. The invention is also directed to a method for producing a toughened graphite electrode and a method for processing metal in an electric arc furnace. The invention is also directed to carbon fiber-pitch binder compositions prepared by the inventive method in which carbon fibers are substantially homogeneously dispersed in the composition. | 07-15-2010 |
20110094336 | METHOD FOR PRODUCING A STEEL MELT CONTAINING UP TO 30% MANGANESE - The invention relates to a method for producing a steel melt containing up to 30% of Mn, which additionally may comprise up to 5% Si, up to 1.5% C, up to 22% Al, up to 25% Cr, up to 30% Ni, and up to 5% each of Ti, V, NB, Cu, Sn, Zr, Mo, and W, and up to 1% each of N and P, with the remainder being iron and unavoidable steel companion elements. | 04-28-2011 |
20110094337 | STEELMAKING FACILITY COMPRISING A DIRECT REDUCTION PLANT AND AN ELECTRIC-ARC FURNACE - A steelmaking plant method and apparatus which includes a pressurized direct reduction reactor for continuous production of hot direct reduced iron (ORI); feeding such DRI to a batch melting furnace or to a standby cooler. The furnace is selectively charged through a diverter valve by a pneumatic transport system with the hot DRI being entrained in a motive carrier gas fed via a first conduit into a receiving bin. A pressurized charge of the DRI accumulated in such disengaging buffer bin is periodically fed via a second conduit down into low dosing/depressurization bin which in turn depressurizes the DRI and feeds a batch of DRI down into the furnace. Upon sensing the capacity of the buffer portion of the receiving bin being filled, the DRI! is then pneumatically diverted from the reactor to the cooler, such as during shut down of the furnace for maintenance or otherwise. | 04-28-2011 |
20120125152 | ELECTRIC ARC MELTING FACILITY AND METHOD FOR PRODUCING MOLTEN METAL BY USING ELECTRIC ARC MELTING FACILITY - An electric arc melting facility includes a melting chamber configured to melt a source iron therein by an electrode, and a shaft-shaped preheating chamber directly connected to the melting chamber. The preheating chamber includes a bottom surface inclined downward toward the melting chamber. A shaft opening dimension is set to an optimum value for controlling the supply of the source iron. A pushing device is disposed at a lower side of the preheating chamber and configured to move the source iron toward the melting chamber. The supply of the source iron from the preheating chamber to the melting chamber is performed by operating the pushing device. The supply of the source iron from the preheating chamber to the melting chamber is stopped by halting the operation of the pushing device. | 05-24-2012 |
20120260771 | HOMOGENIZATION OF MARTENSITIC STAINLESS STEEL AFTER REMELTING UNDER A LAYER OF SLAG - A method of fabricating a stainless martensitic steel includes a step of electroslag remelting of an ingot of the steel then a step of cooling the ingot. Before the skin temperature of the ingot falls below the martensitic transformation temperature Ms of the steel, the ingot from electroslag remelting is placed in a furnace with an initial temperature T | 10-18-2012 |
20130125704 | METHOD FOR TREATING SPHEROIDAL GRAPHITE IRON AND POURING DEVICE THEREOF - A method for treating spheroidal graphite iron includes the step: pouring molten spheroidal graphite iron into a pouring electrical furnace ( | 05-23-2013 |
20140318314 | Method For Melting Steel - A method for melting steel in an electric arc furnace (EAF). A hot heel is provided in the EAF. Metal scrap is loaded into the EAF. The metal scrap is melted in the EAF. The mass of the hot heel in relation to the mass of the metal scrap that is initially beyond the surface of the hot heel is a certain minimum. This minimum is 0.75 times the relation between the heat required to melt the metal scrap beyond the surface of the hot heel and the heat that can be taken from the hot heel without it being solidified when a theoretical heat balance calculation is applied as defined in a formula. | 10-30-2014 |
20140345422 | METHOD FOR RECOVERING VALUABLE METALS - Provided is a method in which, when discarded batteries such as lithium-ion batteries are treated by a dry process, slag having a reduced viscosity is obtained to heighten the recovery of valuable metals. The method for recovering valuable metals includes a dry process (S | 11-27-2014 |
20160076114 | Method for Melting Metal Material in a Melting Plant and Relative Melting Plant - Method for melting metal material in a melting plant comprising at least an electric furnace having at least a shell into which said metal material is introduced, and feed means to load said metal material into said shell, said method comprising at least a step of loading said metal material into said shell by means of said feed means, a melting step in which said metal material is melted, and a subsequent tapping step in which the molten metal material is tapped. | 03-17-2016 |