Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 8187357 | Melting metallurgical process for producing metal melts and transition metal-containing additive for use in this method The invention relates to a process for producing a metal melt containing at least one base metal and at least one further alloy constituent, wherein the production takes place in a melting vessel with slag covering the melt. In accordance with the invention, for inc... | 05/29/2012 |
| 8043402 | Method for the production of a foamed slag in a metal bath A method for producing a foamed slag (1) on a metal bath (2) in a metallurgical furnace (3), in which a mixture (4) containing at least one metal oxide and carbon is introduced into the furnace (3), the metal oxide is reduced by th... | 10/25/2011 |
| 7998237 | Method and installation for the production of steel products having an optimum surface quality Disclosed are a method and an installation for producing steel products (1) having an optimum surface quality, especially extremely low carbon contents (UCL steel or IF steel), nitrogen contents, total oxygen contents, high-strength or stainless steel qualiti... | 08/16/2011 |
| 7942949 | Method and apparatus for the recovery of refractory debris materials and ladle slags as process slags in iron metallurgy production in EAFs, and the related metering to the furnace for the formation of the process slag A method for the recovery of refractory debris materials and ladle slags as process slags in the iron metallurgy production in EAFs and the related metering to the furnace for the formation of the process slag comprises the following steps: grinding and screening of... | 05/17/2011 |
| 7785389 | Feed material composition and handling in a channel induction furnace A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method includes avoiding the formation of islands of materials that are fed ... | 08/31/2010 |
| 7776126 | Processing parameters for operation of a channel induction furnace A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method includes applying a controlled vacuum on the headspace of the channel... | 08/17/2010 |
| 7776127 | Use of a channel induction furnace to process at least one of a molten metal product, a vapor phase metal product and a slag product from a variety of feed materials A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method involves the use a variety of feed materials that contribute to the m... | 08/17/2010 |
| 7740681 | Reductant addition in a channel induction furnace A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. A molten metal bath is maintained in the channel induction furnace and the metho... | 06/22/2010 |
| 7632330 | Production of iron using environmentally-benign renewable or recycled reducing agents To produce metallic iron from iron ore, a composition comprising a mass of material formed from a mixture of iron ore particles and particles of a reductant that is either a biomass material in particulate form or a plastic resinous material in particulate form is u... | 12/15/2009 |
| 7435281 | Pyrometallurgic process for the treatment of steelwork residues A pyrometallurgic process for the treatment of post-steelwork residues, comprises the following phases: preparing a furnace (1) of the electric type, suitable for the introduction of the residues; preparing the residues, for example in a hopper with the possi... | 10/14/2008 |
| 7172640 | Method and device for melting down metal-containing materials In a method and a device for melting down metal-containing material, preferably fine-particulate metal-containing material, such as sponge iron, in a metallurgical melting furnace (1), wherein, in an interior space (11) of the melting furnace (1... | 02/06/2007 |
| 6953337 | Transfer of hot feed materials from a preprocessing plant to an electric smelting or melting furnace Apparatus for transferring hot material between a preprocessing plant and an electric furnace has an enclosed housing extending between the plant and the furnace and within which a controlled atmosphere is maintained, at least one bin having at least one compartment... | 10/11/2005 |
| 6805724 | Method for particulate introduction for metal furnaces A method and an apparatus for advantageously introducing a flame, a high velocity oxidizing gas, and a high velocity particulate flow into a furnace for metal melting, refining and processing, for example, steel making in an electric arc furnace. The steel making pr... | 10/19/2004 |
| 6524362 | Method of melting fine grained direct reduced iron in an electric arc furnace The direct reduced iron (DRI) which for at least 80 wt-% has a grain size of not more than 3 mm is melted in an electric arc furnace. The furnace contains a bath of liquid iron. During the operation of the furnace a foamy slag layer is formed on the bath ... | 02/25/2003 |
| 6485539 | Method of ALNIKO alloy melting A method of alnico alloy melting includes melting a charge, oxidizing refining of the melted charge, with the melting including introducing the charge into a flux that is heated try electrical current, maintaining a temperature of the flux in a range of 1... | 11/26/2002 |
| 6379415 | Method for feeding granular solids into metal melts The invention relates to a method for feeding solids into metal or steel melts whereby granular solids required during the analysis adjustment are fed in a predetermined quantity into the turbulent regions of the metal melt in a dense flow process by mean... | 04/30/2002 |
| 6379416 | Method and device for melt-treating incineration residue containing salts A component adjustor is added to an incineration residue containing salts to adjust a component ratio determined by the equation (Ca+Mg)/(Si+Al) in the range of 0.7 to 2.0. The incineration residue having the adjusted component ratio is charged to a melti... | 04/30/2002 |
| 6372010 | Method for metal melting, refining and processing An improved method and apparatus for metal melting, refining and processing, particularly adapted to steel making in an electric arc furnace. The method provides auxiliary thermal energy to the steel making process, particulate injection for the formation... | 04/16/2002 |
| 6342086 | Method and apparatus for improved EAF steelmaking An improved method and apparatus for EAF steelmaking wherein the method provides additional thermal energy to the steel making process, carbon injection for the formation of foamy slag, and oxygen injection for the decarburization of the melt, the formati... | 01/29/2002 |
| 6309441 | Reduction-melting process to form rare earth-transition metal alloys and the alloys Rare earth alloy compositions, such as the neodymium iron boron (NdFeB) alloy are made by a Reduction-Melting process. The Reduction-Melting process comprises preparing a primary electrode containing at least one compound or metal to be reduced to form a ... | 10/30/2001 |
| 6136059 | Process for reducing the electric steelworks dusts and facility for implementing it A process for processing electric steelworks dusts containing oxidized high-iron, zinc-bearing materials in order to recover iron and zinc from [them] said dusts. The process includes the steps of: feeding the dusts to an induction furnace partially fille... | 10/24/2000 |
| 6113666 | Method of magnetically-controllable, electroslag melting of titanium and titanium-based alloys, and apparatus for carrying out same A method of magnetically-controllable, electroslag melting of titanium and titanium-based alloys is provided that includes the effect of an external radial magnetic field on the metallurgical melt. The field forms at least two adjoining melting layers whi... | 09/05/2000 |
| 6007597 | Electron-beam melt refining of ferroniobium Niobium, Nb, is refined from FeNb by electron beam melt refining. The amount of the impurities in the FeNb which form suboxides with oxygen is optionally determined. Sufficient oxygen is added to form oxides with these impurities. The electron beam melt r... | 12/28/1999 |
| 5968223 | Method for heating molten metal using heated baffle A method of heating a body of molten metal passing through a treatment bay. The method comprises providing a body of molten metal in a treatment bay and providing a baffle heater in the treatment bay to contact the molten metal. The baffle heater is compr... | 10/19/1999 |
| 5968224 | Recovery of titanium values from titanium grinding swarf by electric furnace smelting A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an ... | 10/19/1999 |
| 5925165 | Process and apparatus for the 3-stage treatment of solid residues from refuse incineration plants In a method for processing solid residues from refuse incineration plants the slag is melted and heavy metals from the melt (16) are separated for reutilization. The slag is directly transferred from the refuse incineration plant into a first heating cham... | 07/20/1999 |
| 5810905 | Process for making pig iron A process for producing pig iron from iron ore fines wherein the fines are partially reduced in a fluid bed reactor and, without pelletizing, briquetting or otherwise agglomerating the partially reduced fines, injecting them with a lance below the surface... | 09/22/1998 |
| 5732366 | Method of reprocessing metal parts radioactively contaminated with uranium A method for reprocessing metal parts that are radioactively contaminated with uranium includes smelting the metal parts so that a melt and a slag are formed. U235 -depleted uranium is admixed with the metal parts and/or the melt and/or the sla... | 03/24/1998 |
| 5724669 | Metal decontamination process and systems for accomplishing same The present invention provides for methods for on-line monitoring of a molten process phase to determine the extent of extraction of radioactive species from a waste metal contaminated with the radioactive species. The waste metal is mixed with an inorgan... | 03/03/1998 |
| 5527374 | Process for improving metal production in steelmaking processes A process and apparatus for improving metal production in ironmaking and steelmaking processes is disclosed. The use of an inert metallic conductor in the slag containing crucible and the addition of a transition metal oxide to the slag are the disclosed ... | 06/18/1996 |
| 5476529 | Process for the recovery of magnesium from magnesium alloys waste A process for recovery of magnesium from magnesium alloy waste by charging an electric furnace with a flux including at least one salt, the flux being inert with respect to magnesium and having a melting point | 12/19/1995 |
| 5466275 | Method and apparatus for desulphurizing iron with minimal slag formation The invention relates to a method and apparatus for desulphurizing iron with minimal slag formation, comprising the steps of melting and heating, to a temperature of about 1400° to 1800° C., a slag having the following chemical composition: 20% max SIO | 11/14/1995 |
| 4913732 | Method for smelting reduction in electric furnace A method for smelting reduction in an electric furnace comprises the steps of forming arc between each electrode of an electric furnace and molten metal in the electric furnace, charging a reducing agent into the electric furnace, blowing inert gas into t... | 04/03/1990 |
| 4906290 | Microwave irradiation of composites The present invention provides a leaching or smelting precursor method of drying and heating particulate ores or concentrates which have been previously intimately admixed with either an already active form of carbon or with some other carbon-containing m... | 03/06/1990 |
| 4767451 | Method of operating an electric arc furnace In the method of producing steel by providing a vessel containing ferrous metal to be melted and passing electric current into the metal to melt the same by means of at least one electrode connected to an exterior source of electrical power, the improveme... | 08/30/1988 |
| 4702767 | Method of purifying a bearing steel A high-quality bearing steel contains 0.70 to 1.10% by weight of C, 0.15 to 1.60% by weight of Si, 0.15 to 1.15% by weight of Mn, 0.010% by weight or less of P, 0.002% by weight or less of S, 0.50 to 1.60% by weight of Cr, 0.015% by weight or less of Al, ... | 10/27/1987 |
| 4593886 | Method for charging liquid slag to a closed smelting furnace The present invention relates to a method and a means for charging liquid slag to a closed smelting furnace. The means for charging liquid slag comprises a double walled tube extending through an opening in the furnace roof, said tube being connected to m... | 06/10/1986 |
| 4541866 | Hot injection ladle metallurgy A method of preheating a ladle addition to a melt contained in an enclosed or covered ladle without significant loss of melt temperature. A gas stream is heated in a non-transferred arc electric arc heater to a temperature in excess of that of the melt. T... | 09/17/1985 |
| 4531974 | Work-hardenable austenitic manganese steel and method for the production thereof A work-hardenable austenitic manganese steel has a base composition (each in percent by weight) of 0.7 to 1.7 carbon, 5.0 to 18.0 manganese, 0 to 3.0 chromium, 0 to 4.0 nickel, 0 to 2.5 molybdenum, 0.1 to 0.9 silicon, up to 0.1 phosphorus and contains mic... | 07/30/1985 |
| 4457779 | Oxidizing flux for simultaneous smelting/converting sulfides of high gangue content A method of producing a metal matte from an unroasted high-gangue content ore which contains iron sulfides by using ferric oxide as a flux to react with the iron sulfides of the ore and provide the oxygen needed to both remove them from the matte and to p... | 07/03/1984 |
