| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 01/22/2003 | CN1099473C Oxide dispersed steel and its producing method |
| 01/21/2003 | US6508857 Core of calcium wire with a sheath of aluminum and a steel jacket; reducing splashing and reactivity of calcium metal when introduced into molten ferrous metal |
| 01/16/2003 | WO2003004707A1 Method for decarbonization refining of chromium-containing molten steel |
| 01/16/2003 | US20030011112 Refractory nozzle |
| 01/16/2003 | US20030010060 Method for treating steel plant slag |
| 01/15/2003 | EP1275453A2 Refractory nozzle |
| 01/15/2003 | CN1390958A Deoxidizing slag-forming agent for ladle furnace |
| 01/14/2003 | US6506225 During ladle treatment of crude steel produced from the desulfurized pig iron, no additional slag components are required, so that problems of introducing additives and disposing of the ladle slag are eliminated |
| 01/09/2003 | WO2003002771A1 Low carbon steel sheet, low carbon steel cast piece and method for production thereof |
| 01/08/2003 | EP1183397B1 Method and device for tapping molten metal from metallurgical vessels |
| 01/08/2003 | CN1389581A Pre-molten low-melting point composite calcium oxide desulfurizer and its prepn. |
| 01/08/2003 | CN1389580A Pre-molten low-melting point composite calcium carbide desulfurizer and its prepn. |
| 01/08/2003 | CN1389579A Pre-molten low-melting point composite calcium aluminate desulfurizer and its prepn. |
| 01/08/2003 | CN1389578A Lime powder surface modifier |
| 01/08/2003 | CN1389577A Low-phosphorus and low-sulphur Al-Fe alloy |
| 01/08/2003 | CN1389576A SiCaMn alloy |
| 01/08/2003 | CN1389575A Nitrogen alloying process with nitrogen in AOD furnace |
| 01/08/2003 | CN1098365C Rare-earth metal wire |
| 01/02/2003 | EP1270748A2 Metal refining method using a two-step oxygen blowing sequence |
| 01/02/2003 | EP1268863A1 Vacuum treatment of cast metal with simultaneous helium-injection stirring |
| 01/02/2003 | EP1192401B1 Method and system for the treatment of liquid metals |
| 12/31/2002 | US6500224 Method for operating a steelmaking furnace during a steelmaking process |
| 12/25/2002 | CN1386867A Composite desulfurizer of iron and steel and its preparing process |
| 12/19/2002 | WO2002014562A3 Desulphurization reagent control method and system |
| 12/19/2002 | US20020190444 Methods employing permanent magnets having reach-out magnetic fields for electromagnetically pumping, braking, and metering molten metals feeding into metal casting machines |
| 12/18/2002 | CN1385544A Flux for electric furnace steelmaking and its preparation and use method |
| 12/18/2002 | CN1385543A Silicon-aluminium-manganese-calcium ferrous alloy for steelmaking deoxidation and alloying |
| 12/18/2002 | CN1385267A Rareearth magnesium deterioration equipment and applied technology in rearearth steel continuous casting technology |
| 12/17/2002 | US6494789 Golf club head |
| 12/12/2002 | WO2001096616A1 Method and apparatus for producing desulfurizing agent for hot-metal |
| 12/12/2002 | CA2412666A1 Method for manufacturing hot metal desulfurizing agent and apparatus for same |
| 12/11/2002 | EP1264912A1 Free-cutting steel for machine structural use having good machinability in cutting by cemented carbide tool |
| 12/11/2002 | CN2525098Y Composite temperature elevating agent pelletizing |
| 12/11/2002 | CN1384213A Binary deactivated blown non-metal powder and its prepn |
| 12/11/2002 | CN1383946A Production process of pre-molten material for continuous crystallizer protecting slag |
| 12/11/2002 | CN1095876C Method for oxygen furnace steel in electric arc furnace |
| 12/10/2002 | US6491863 Method and apparatus for efficient utilization of a cryogen for inert cover in metals melting furnaces |
| 12/10/2002 | CA2125230C Method and apparatus for feeding pressurized gas to an air constituant consuming facility |
| 12/05/2002 | WO2002097139A1 Process and apparatus for the continuous steel degassing and refering |
| 12/04/2002 | EP1262567A2 Molten steel producing method |
| 12/04/2002 | EP0819182B1 A method of producing metals and metal alloys |
| 12/04/2002 | CN2523765Y Device for desulfurizing molten iron in large ladle by blowing magnesium |
| 12/04/2002 | CN1383455A Flux-cored wire for introducing additives into molten metal bath |
| 12/04/2002 | CN1382822A Al-Si-Mn alloy and its preparing process |
| 12/04/2002 | CN1382810A Spherical Al slag and its preparing process |
| 12/03/2002 | US6488743 Metal melt treatment equipment |
| 12/03/2002 | CA2217353C A method of producing metals and metal alloys |
| 11/28/2002 | US20020174746 Heating a steel charge and slag forming material of silicon, mangnese and calcium oxides in a ladle, and stirring by injecting an inert gas to cause silicon/manganese deoxidation and desulfurization |
| 11/27/2002 | CN1382225A Process and apparatus for removal of contaminant from slag |
| 11/27/2002 | CN1381596A Moisture-proof acive lime as composite desulfurizing agent |
| 11/27/2002 | CN1381595A Silicon-Aluminium-Barium-Ferromengaese alloy used as deoxidizing agent in smelting steel |
| 11/20/2002 | EP1257673A1 Method for grain refining of steel, grain refining alloy for steel and method for producing grain refining alloy |
| 11/20/2002 | CN1380427A Powdered iron core-covered wire for smelting steel |
| 11/20/2002 | CN1094403C Process for producing metal magensium particles of coated layer |
| 11/13/2002 | EP0785284B1 Process for vacuum refining of molten steel |
| 11/13/2002 | CN1379825A Method and use of calcium nitrate for foaming of steel-making slags |
| 11/12/2002 | US6478848 Direct smelting process |
| 11/12/2002 | US6478840 Reduction of chromium content in slag during melting of stainless steel in electric arc furnaces |
| 11/06/2002 | EP1254275A1 STEEL PLATE TO BE PRECIPITATING TiN + ZrN FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME AND WELDING FABRIC USING THE SAME |
| 11/06/2002 | CN1377977A Synthetic slag for reducing oxygen and sulfur content in molten steel and its slag making method |
| 11/05/2002 | US6477195 Process for melting sponge iron and electric-arc furnace for carrying out the process |
| 10/31/2002 | WO2002086171A1 Method for agitating steel in a ladle |
| 10/31/2002 | US20020160852 Golf club head |
| 10/30/2002 | EP1252343A1 Method for treating slags or slag mixtures on an iron bath |
| 10/30/2002 | EP1252342A1 Porous agglomerates containing iron and at least one further element from groups 5 or 6 of the periodic table for use as an alloying agent |
| 10/30/2002 | CN2518869Y Beam jet oxygen gun for steelmaking |
| 10/29/2002 | US6471912 Rotor for the treatment of a fluid such as a metal melt |
| 10/29/2002 | US6471742 Method for producing an improved charging stock for use in metallurgical processes |
| 10/24/2002 | WO2002083966A1 Reinforced durable tool steel, method for the production thereof, method for producing parts made of said steel, and parts thus obtained |
| 10/24/2002 | WO2002083958A1 Apparatus for injecting gas into a vessel |
| 10/23/2002 | EP1250465A2 Thermodestruction and inertisation of halogenated waste in a metallurgical reactor |
| 10/23/2002 | EP0881304B1 Method of vacuum decarburization/refining of molten steel and apparatus therefor |
| 10/23/2002 | CN1375562A Composite metallurgical refining agent |
| 10/23/2002 | CN1375561A Production process and apapratus of composite calcium carbide deoxygenating and purifying agent |
| 10/23/2002 | CN1375560A Phosphorus controlling method for producing ultra-low phosphorus steel |
| 10/22/2002 | US6468467 Method and apparatus for vacuum decarburization refining of molten steel |
| 10/17/2002 | DE10118261A1 Zusatz zu Impfmitteln zum Animpfen von in einem Konverter mit Magnesium behandelten Gusseisenschmelzen Addition to inoculants to inoculate in a converter treated with magnesium cast iron melts |
| 10/16/2002 | EP1249504A2 Inoculation additive for conditioning cast iron melts treated with magnesium in a converter |
| 10/16/2002 | EP1248861A1 Method for treating steel plant slag |
| 10/16/2002 | CN1374407A Fe-Ca-Al slag and its prepn |
| 10/15/2002 | US6464932 Refractory aggregate and 30% by weight or less of a carbon raw material comprising at least graphite; wear lining various melting furnaces |
| 10/10/2002 | WO2002079522A1 Ladle refining of steel |
| 10/09/2002 | CN2515205Y Inductive argon oxygen powder-spraying refining high alloy steelmaking furnace |
| 10/08/2002 | US6461404 Ladle for enhanced steel vacuum decarburization |
| 10/08/2002 | US6460742 Process for reducing fume emissions during molten metal transfer |
| 10/03/2002 | WO2002077298A2 Vacuum chamber, notably for steel decarburisation |
| 10/03/2002 | WO2002076656A1 Apparatus for transferring liquid metals from a collection container to a receiving container |
| 10/03/2002 | WO2000034533A3 Method for removing nitrogen from steel melts |
| 10/03/2002 | CA2442006A1 Vacuum chamber, notably for steel decarburisation |
| 10/03/2002 | CA2441342A1 Apparatus for transferring liquid metals from a collection container to a receiving container |
| 10/02/2002 | CN1372012A Slag-collecting thermal-insulating covering agent |
| 10/02/2002 | CN1372011A Slag collecting thermal-insulating covering agent |
| 10/02/2002 | CN1372010A Covering agent |
| 10/02/2002 | CN1372009A Dephosphorizing agent for molten iron and steel |
| 10/02/2002 | CN1371772A Alkaline granule steel ladle covering agent |
| 09/26/2002 | WO2002075005A2 Method for the use of electric steel plant slag for self-reducing agglomerates |
| 09/26/2002 | WO2002074470A1 Refractory plug or brick for injecting gas into molten metal |
| 09/26/2002 | US20020134469 Process for manufacturing a strip made of an Fe-Ni alloy |
| 09/25/2002 | EP1243361A1 Apparatus for injecting gas into molten metal |
| 09/25/2002 | EP1242781A2 Method for operation of a smelting furnace |