| 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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| 02/20/2002 | EP1180550A2 Oxygen lance |
| 02/20/2002 | CN1336961A Apparatus and method for stirring molten metal using electromagnetic field |
| 02/20/2002 | CN1336443A Secondary combustion process of steel smelting in superhigh power electric arc furnace |
| 02/20/2002 | CN1336442A Hot loading process of molten iron in electric furnace and conveying vehicle for blast furnace molten iron |
| 02/20/2002 | CN1079436C Reduced pressure smelting furnace |
| 02/13/2002 | EP1179602A1 Method for injection of a gas with an injection nozzle |
| 02/13/2002 | EP0958481B1 Smelting installation with an electric-arc furnace |
| 02/13/2002 | CN2476558Y Evaporation cooling device of steelmaking converter |
| 02/13/2002 | CN2476557Y Converter petticoat pipe evaporative cooling orifice set |
| 02/12/2002 | US6347110 Charging device for low blast furnaces |
| 02/12/2002 | US6346212 Converter |
| 02/12/2002 | CA2133918C Method and device for producing stainless steel |
| 02/07/2002 | US20020014725 Covered container containing solid; ionized air flow |
| 02/07/2002 | CA2353714A1 Process for injection of a gas with the aid of a nozzle |
| 02/06/2002 | EP1178121A2 Fluid cooled coherent jet lance |
| 02/06/2002 | EP1177406A1 Plug members for steel furnaces |
| 01/31/2002 | US20020011132 Process to preheat and carburate directly reduced iron (DRI) to be fed to an electric arc furnace (EAF) |
| 01/30/2002 | EP0870066B1 Method and facility for reprocessing waste |
| 01/30/2002 | CN1333380A Tapping outlet for converter |
| 01/30/2002 | CN1078620C Ladle finer reduction foaming agent |
| 01/30/2002 | CN1078619C Apparatus and method for cooling basic oxygen furnace trunnion ring |
| 01/30/2002 | CN1078618C Refractory wall |
| 01/29/2002 | US6342086 Method and apparatus for improved EAF steelmaking |
| 01/24/2002 | WO2002006745A1 Burner nozzle |
| 01/24/2002 | US20020009118 Apparatus for arc-melting cold iron source and method threof |
| 01/24/2002 | US20020007699 Apparatus and method for optimizing the use of oxygen in the direct reduction of iron |
| 01/24/2002 | DE10034370A1 Verfahren zum Verschließen oder Öffnen des Abstichloches eines metallurgischen Gefäßes, insbesondere eines Elektrolichtbogenofens und zugehöriger Bodenabstich A method for closing or opening the taphole of a metallurgical vessel, in particular of an electric arc furnace and associated bottom taphole |
| 01/24/2002 | CA2417733A1 Burner nozzle |
| 01/23/2002 | CN1332045A Production process of mother material for cold rolled ribbed steel bar and cold rolled ribbed steel bar |
| 01/22/2002 | CA2044838C Process and system for melting a charge in a furnace |
| 01/17/2002 | WO2002004919A2 Method and apparatus for the assay of precious metals |
| 01/17/2002 | US20020005089 Method of and apparatus for manufacturing the metallic iron |
| 01/17/2002 | US20020005083 Process for the production of metal melts |
| 01/17/2002 | DE10016075C1 Method of removing impurities in ion, involves separating iron and copper phase and copper in iron phase is removed by difference in specific gravity |
| 01/16/2002 | EP1172447A1 Method and device for slag free pouring of metal, especially steel, from an upright metallurgical vessel |
| 01/16/2002 | EP1172162A1 Method for closing or opening a discharging opening of a metallurgical vessel, especially for an electric arc furnace and corresponding tapping hole |
| 01/16/2002 | EP1171639A1 Continuous charge preheating, melting, refining and casting |
| 01/16/2002 | EP1114190A4 Blast furnace with narrowed top section and method of using |
| 01/16/2002 | EP1034312B1 Installation for reducing iron oxides and smelting iron |
| 01/16/2002 | CN1331347A Powder-spraying metallurgical technology for smelting steel in ultrahigh-power electric furnace |
| 01/15/2002 | CA2166097C Process for producing steel by converter |
| 01/10/2002 | WO2002002827A1 Lance |
| 01/10/2002 | US20020002880 Process to preheat and reduce directly reduced iron (DRI) to be fed to an electric arc furnace (EAF) |
| 01/10/2002 | DE10038277A1 Process for dosing corrosion protection agents in the cooling water circuit of a tempering plant comprises measuring the pH in the circuit, and adding a corrosion protection agent when there is a deviation in pH from a theoretical value |
| 01/10/2002 | DE10031361A1 Verfahren und Vorrichtung zum schlackenfreien Abstechen einer Metall-, insbesondere einer Stahl-Schmelze, aus einem senkrecht stehenden metallurgischen Gefäß Method and device for slag-free tapping of a metal, in particular a steel melt, from a vertical metallurgical vessel |
| 01/09/2002 | EP1170386A2 Injection lance, particularly for injecting substances in the form of powder or particulate, into electric furnaces for steelmaking |
| 01/09/2002 | EP1170385A2 Device for applying injection lances or burners to the side walls of electric furnaces for steelmaking |
| 01/09/2002 | EP1169115A1 Coupling for a molten metal processing system |
| 01/09/2002 | EP1060275B1 Device for preheating charging stock, comprising replaceable stack wall sections |
| 01/09/2002 | EP1032714B1 Electric arc low-shaft smelting furnace with a central tube with telescopic electrodes and a sliding upper receptacle lid |
| 01/09/2002 | EP1015653B1 Metallurgical vessel |
| 01/09/2002 | CN2470368Y Independent boiler of rotary after-heat boiler |
| 01/09/2002 | CN1330723A Method of producing molten iron in duplex furnaces |
| 01/08/2002 | CA2149225C High-production rotary furnace steelmaking |
| 01/03/2002 | WO2002001190A2 Method and apparatus for improved process control in combustion applications |
| 01/03/2002 | US20020001332 Mounting arrangement for auxiliary burner or lance |
| 01/02/2002 | EP1166080A1 Liquid copper hydrogen sample probe |
| 01/02/2002 | CN2468604Y Casting center water cooling constant jet flow oxygen gun jetting head |
| 01/02/2002 | CN1329675A Method for denitring molten steel during its production |
| 01/01/2002 | US6335945 Electric ARC low-shaft smelting furnace with a central tube with telescopic electrodes and a sliding upper receptacle lid |
| 01/01/2002 | US6334976 Fluid cooled coherent jet lance |
| 12/27/2001 | WO2001099473A2 Induction furnace |
| 12/27/2001 | US20010054329 Method for producing molten iron in duplex furnaces |
| 12/27/2001 | CA2413307A1 Induction furnace |
| 12/25/2001 | US6332910 Electric furnace slags and slags for obtaining pig iron |
| 12/20/2001 | WO2001096617A1 Method for observing inside of molten iron refining furnace and tuyere for observing inside of furnace |
| 12/20/2001 | US20010052556 Injector |
| 12/20/2001 | US20010052200 Perfected melting method and device suitable to achieve the method |
| 12/20/2001 | DE10029995A1 Vorrichtung zum Einleiten eines insbesondere gasförmigen Behandlungsmediums in einen mit flüssigem Metall gefüllten Behälter The apparatus for introducing an in particular gaseous treatment medium into a container filled with liquid metal |
| 12/20/2001 | DE10029948A1 Gas-sparging lance for molten metal, comprising metal tubing with refractory covering, includes comparatively-wide, rounded spiral reinforcement |
| 12/20/2001 | CA2381584A1 Method for observing inside of molten iron refining furnace and tuyere for observing inside of furnace |
| 12/19/2001 | EP1163964A1 Device for introducing a treatment agent, particularly a gaseous treatment agent, in a vessel filled with molten metal |
| 12/19/2001 | CN2466157Y Slag bridge |
| 12/19/2001 | CN2465811Y Oxygen sprayer capable of reusing |
| 12/19/2001 | CN1327072A Method and device for making metal iron |
| 12/19/2001 | CN1076399C Device for coupling blow lance with header |
| 12/18/2001 | CA2186538C Method for cooling graphite electrodes used for metal melting and refining in an electric arc furnace and a ladle |
| 12/13/2001 | WO2001094649A1 Immersion pipe cleaning device for vacuum degassing vessels |
| 12/13/2001 | WO2001036891A3 Method for operation of a smelting furnace |
| 12/13/2001 | DE10028172A1 Cleaning device used for blowpipes of vacuum degassing devices comprises an outer stabilizing ring connected to teeth by interlocking, and a blowpipe scraper which travels vertically with a lifting hydraulic device |
| 12/12/2001 | EP1049811B1 Method and device to feed premixed gas to tuyeres of electric arc furnace |
| 12/12/2001 | CN1326515A Direct-current arc furnace comprising centric charging shaft for producing steel and method therefor |
| 12/11/2001 | US6328783 Producing iron from solid iron carbide |
| 12/06/2001 | WO2001092586A1 Apparatus for injecting solid particulate material into a vessel |
| 12/06/2001 | WO2001036691B1 Taphole knockout device |
| 12/06/2001 | US20010048707 Process for melting sponge iron and electric-arc furnace for carrying out the process |
| 12/06/2001 | DE10126356A1 Process for melting a metal sponge comprises inserting the sponge into an electric arc furnace forming a metal sponge stream close to the electrode on the bath meniscus, and blowing oxygen into the melt |
| 12/06/2001 | DE10027437A1 Abkühlelement für Flüssigschmelzen Cooling member for liquid melting |
| 12/05/2001 | EP1160531A2 Cooling element for molten material |
| 12/05/2001 | EP1160338A1 Process to preheat and reduce directly reduced iron (DRI) to be fed to an electric arc furnace (EAF) |
| 12/05/2001 | EP1160337A1 Process to preheat and carburate directly reduced iron (DRI) to be fed to an electric arc furnace (EAF) |
| 12/05/2001 | EP1160336A1 Method of and apparatus for manufacturing metallic iron |
| 12/05/2001 | EP1062370B1 Blasting lance with a gas/liquid mixing chamber and a method for the expansion cooling thereof |
| 12/05/2001 | EP1003919B1 Apparatus and method for cooling a basic oxygen furnace trunnion ring |
| 12/05/2001 | EP0866881B1 Process for reclaiming incineration waste |
| 12/05/2001 | CN1324777A Steel slag portland cement producing process with converter slag |
| 11/30/2001 | CA2349060A1 Process for melting sponge iron and electric-arc furnace for carrying out the process |
| 11/29/2001 | WO2001090019A1 Method for oxidising treatment of steel works slag and resulting ld slag |
| 11/29/2001 | WO2000050648A9 Continuous charge preheating, melting, refining and casting |
| 11/29/2001 | WO2000035831A3 Method and device for producing a composite element from a ceramic inner part and a metal jacket |