| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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| 02/26/2003 | CN1399726A Measurement of wear of fireproof lining of metallurgical vessel |
| 02/25/2003 | US6524362 Method of melting fine grained direct reduced iron in an electric arc furnace |
| 02/25/2003 | US6524356 Combusting a first supply of a liquid/gaseous hydrocarbon, with oxygen in first stage to provide flame gases, passing it into second stage, injecting a second supply of hydrocarbon, reacting with flame gas to form carbon monoxide and hydrogen |
| 02/20/2003 | WO2003013694A1 Process to recover energy form hot gas |
| 02/20/2003 | CA2456557A1 Process to recover energy form hot gas |
| 02/18/2003 | US6521170 Revamping of a basic oxygen furnace installation to provide an electric furnace facility |
| 02/18/2003 | US6519829 Method and device for producing a composite element from a ceramic inner part and a metal jacket |
| 02/13/2003 | WO2002075003A3 Argon oxygen decarburisation converter control method and system |
| 02/12/2003 | CN2535419Y New-type side wall carbon oxygen lance |
| 02/12/2003 | CN2535418Y Combined extruding-casting oxygen lanze nozzle |
| 02/12/2003 | CN1396961A Method for removing chrome and/or nickel from liquid slags |
| 02/12/2003 | CN1396959A Method for producing pozzolanic binders for cement industry from steel slags using reduction metal bath |
| 02/12/2003 | CN1396024A Fire-resistant drainage outlet |
| 02/11/2003 | US6517605 Start-up procedure for direct smelting process |
| 02/06/2003 | WO2002081759A9 Method and device for preventing slag from flowing along when tapping a molten metal |
| 02/06/2003 | US20030024349 Melting iron material and carbon material to produce a high-carbon molten iron whose carbon content is not lower than 1% |
| 02/05/2003 | EP1281776A1 Composition for hindering the formation of iron oxides in steel-melting slag and process for obtaining a slag with a low level of iron oxides |
| 02/05/2003 | CN1395622A Converter oxygen blowing method and upward blowing lance for converter oxygen |
| 02/04/2003 | US6514310 Process for injection of a gas with the aid of a nozzle |
| 01/30/2003 | WO2003008651A1 Steel making material recycling system |
| 01/30/2003 | WO2003008143A1 Riser(s) size reduction and/or metal quality improving in gravity casting of shaped products by moving electric arc |
| 01/30/2003 | US20030019329 Method for making molten metal |
| 01/30/2003 | CA2459112A1 Steel making material recycling system |
| 01/29/2003 | EP1279914A1 Method for preparing scrap iron to be fed to steelmaking electric furnaces, and apparatus for carrying out the method |
| 01/29/2003 | CN1393569A Method for refining metal by different oxygen refining sequence |
| 01/28/2003 | WO2003006693A1 A gas injection lance |
| 01/23/2003 | WO2003006389A1 Method of preparing a fiberizable melt of a mineral material |
| 01/23/2003 | US20030017358 Metal-zirconia composite coating with resistance to molten metals and high temperature corrosive gases |
| 01/23/2003 | US20030015063 Steel making material recycling system |
| 01/23/2003 | DE10162169C1 Coolable lining, used for high temperature gasifying reactor, comprises cooling elements with large specific outer surface and supporting outer ribs |
| 01/22/2003 | CN2532083Y Bull taper shaped slag stopper for tapping of rotary furnace |
| 01/22/2003 | CN1392414A Method for analyzing and studying high temperature foaming of metallurgical cinder |
| 01/22/2003 | CN1099573C Electric arc fusion furnace |
| 01/22/2003 | CN1099473C Oxide dispersed steel and its producing method |
| 01/21/2003 | US6508853 Using electric arcs furnaces; oxygen blowing vessel |
| 01/16/2003 | WO2003004707A1 Method for decarbonization refining of chromium-containing molten steel |
| 01/16/2003 | WO2003004198A2 Method and apparatus for metal pouring |
| 01/16/2003 | US20030011114 Gas injection lance |
| 01/16/2003 | US20030011112 Refractory nozzle |
| 01/16/2003 | US20030010155 For refining molten iron steels; decarburization; efficiency |
| 01/15/2003 | EP1275453A2 Refractory nozzle |
| 01/15/2003 | EP1274870A1 Ferroalloy production |
| 01/14/2003 | US6507599 Induction heating furnace and bottom tapping mechanism thereof |
| 01/14/2003 | US6507598 Induction heating furnace and bottom tapping mechanism thereof |
| 01/14/2003 | US6506337 Molten metal ladle transport arrangement |
| 01/14/2003 | CA2188338C Refractory lining system for high wear area of high temperature reaction vessel |
| 01/08/2003 | EP1183397B1 Method and device for tapping molten metal from metallurgical vessels |
| 01/08/2003 | EP1144696A4 Method of producing molten iron in duplex furnaces |
| 01/08/2003 | CN2529875Y Slag rod guiding rod with convex rib or recess |
| 01/08/2003 | CN1390265A Solid state reduction of oxides |
| 01/08/2003 | CN1098452C Electric arc controller |
| 01/08/2003 | CN1098129C Method for producing refractory material mould by utilizing industrial refuse |
| 01/07/2003 | US6503442 Metal-zirconia composite coating with resistance to molten metals and high temperature corrosive gases |
| 01/02/2003 | US20030004602 Method and apparatus for metal pouring |
| 01/02/2003 | US20030000338 Forming particulate reaction zones for the iron carbon melt; injecting a high velocity flow of particulates entrained in a carrier gas toward reaction zones from apparatus having a discharge end mounted near the intersection of sill line |
| 01/02/2003 | EP1270748A2 Metal refining method using a two-step oxygen blowing sequence |
| 01/02/2003 | EP1269796A1 Process and apparatus for automatically controlling slag foaming |
| 01/02/2003 | EP1268344A1 Method for recuperating thermal energy of gases of an electrometallurgical furnace and use for making silica powder |
| 12/31/2002 | US6500382 Method and apparatus for slag-free teeming of metal melt from a metallurgical melt vessel |
| 12/31/2002 | US6500224 Method for operating a steelmaking furnace during a steelmaking process |
| 12/25/2002 | CN2527569Y Control-torque dregs scraper |
| 12/25/2002 | CN1387015A Quadrilateral assembly for coherent jet gas spray and aftercombustion in arc furnace |
| 12/19/2002 | WO2002101096A1 Method of preliminarily processing converter type hot metal |
| 12/19/2002 | WO2002100577A1 Furnaces for the production of magnesium alloys |
| 12/19/2002 | WO2002081759A8 Method and device for preventing slag from flowing along when tapping a molten metal |
| 12/19/2002 | WO2002014562A3 Desulphurization reagent control method and system |
| 12/19/2002 | DE10107562C2 Vorrichtung und Verfahren zum Konditionieren von heißen, metallhaltigen Schlacken Apparatus and method for conditioning hot, metal-containing slags |
| 12/18/2002 | EP1109943B1 Induction furnace for a metal reduction and melting process |
| 12/18/2002 | EP1073773B1 An improved process for making steel |
| 12/17/2002 | US6495093 Device for closing a tap hole of a metallurgical vessel |
| 12/17/2002 | CA2114884C Molten metal sampler |
| 12/12/2002 | WO2002099143A1 Method for melting and decarburization of iron carbon melts |
| 12/11/2002 | EP1265043A2 Induction heating furnace and bottom tapping mechanisme thereof |
| 12/11/2002 | EP1203103B1 Method of producing foamed slag |
| 12/11/2002 | CN1095981C Smelting installation with electric-arc furnace |
| 12/11/2002 | CN1095876C Method for oxygen furnace steel in electric arc furnace |
| 12/10/2002 | USRE37922 Method and apparatus to determine and control the carbon content of steel in a BOF vessel |
| 12/05/2002 | WO2002097378A1 Method of measuring slag layer thickness or slag layer thickness and molten metal layer surface level position, and measuring device therefor |
| 12/05/2002 | WO2002097139A1 Process and apparatus for the continuous steel degassing and refering |
| 12/05/2002 | US20020180124 Method for observing inside of molten iron refining furnace and tuyere for observing inside of furnace |
| 12/05/2002 | US20020179278 Method of melting titanium and other metals and alloys by plasma arc or electron beam |
| 12/04/2002 | EP1262567A2 Molten steel producing method |
| 12/04/2002 | EP0819182B1 A method of producing metals and metal alloys |
| 12/04/2002 | CN1383454A Method for observing inside of molten iron refining furnace and tuyere for observing inside of furnace |
| 12/04/2002 | CN1382809A Apparatus for charging molten iron in electric furnace for continuously smelting steel |
| 12/04/2002 | CN1382619A Technology for manufacturing plates for container |
| 12/03/2002 | US6490312 Direct-current arc furnace comprising a centric charging shaft for producing steel and a method therefor |
| 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 | WO2002081759A1 Method and device for preventing slag from flowing along when tapping a molten metal |
| 11/27/2002 | EP1260599A2 Rotary drum furnace for the pyrometallurgical treatment of waste in fluidised bed |
| 11/27/2002 | EP1260289A1 Porous plug for treatment of molten metals |
| 11/27/2002 | EP1259651A1 System for producing steel |
| 11/27/2002 | EP1232675A4 Mounting arrangement for auxiliary burner or lance |
| 11/27/2002 | EP0792938B1 Scrap melting method |
| 11/27/2002 | CN2522427Y Ball-shape dregs baffle device |
| 11/27/2002 | CN1382225A Process and apparatus for removal of contaminant from slag |
| 11/27/2002 | CN1381594A Slag bot |
| 11/27/2002 | CN1094980C Method for controlling smelting reduction process |
| 11/26/2002 | US6487234 Induction heating furnace and bottom tapping mechanism thereof |