| 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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| 08/21/2002 | CN1089430C DC arc furnace |
| 08/21/2002 | CN1089429C Electric arc furnace post combustion method |
| 08/21/2002 | CN1089428C DC arc furnace |
| 08/20/2002 | US6438154 Method and apparatus for recovering metal values from liquid slag an baghouse dust of an electric arc furnace |
| 08/15/2002 | WO2002062720A1 Method for oxidizing treatment of steel plant slag to obtain cement-based materials |
| 08/15/2002 | US20020110175 Method and apparatus for deslagging and tapping an integrated electric steel making furnace |
| 08/14/2002 | EP1231445A1 Through-hole sealing device |
| 08/14/2002 | EP1230407A1 Solid state reduction of oxides |
| 08/14/2002 | EP1230404A1 Method and use of calcium nitrate for foaming of steel-making slags |
| 08/14/2002 | EP1090261B1 Tiltable light-arc furnace |
| 08/14/2002 | CN1363690A Technology for smelting steel from small waste steel or iron particles |
| 08/13/2002 | US6432165 Method for injecting gases into a metallurgical tank |
| 08/13/2002 | US6432163 Metal refining method using differing refining oxygen sequence |
| 08/13/2002 | US6432162 Process for melting ashes, slags or glass |
| 08/08/2002 | WO2002001190A3 Method and apparatus for improved process control in combustion applications |
| 08/07/2002 | EP1228825A1 Process and device for the flow control of a casting admixture to a molten metal |
| 08/07/2002 | EP1228252A1 Method and device for enclosing an electric arc |
| 08/07/2002 | EP1228251A1 Method and device for melting down finely particulate material containing metal, such as sponge iron |
| 08/07/2002 | EP1228250A1 Gas stopper brick for metallurgical vessels with a sealing body that is subject to screw pressure springs |
| 08/07/2002 | EP0760868B1 Method for producing steel in an electric arc furnace, and electric arc furnace therefor |
| 08/07/2002 | CN1363028A Plug members for steel furnace |
| 08/07/2002 | CN1088839C 取样器 Sampler |
| 08/07/2002 | CN1088827C Nozzle of blowing hot metal |
| 08/07/2002 | CN1088759C Feeding device for shaft furnace |
| 08/06/2002 | US6428603 Direct smelting process |
| 08/01/2002 | DE10102854A1 Lanzenkopf für eine Sauerstofflanze Lance head for an oxygen lance |
| 07/31/2002 | EP1226283A1 High temperature premelting apparatus |
| 07/31/2002 | CN2502797Y Combined extrusion centre water cold electric furnace oxygen pistol blow head |
| 07/31/2002 | CN1361293A Plant for using converter produced vapor in vacuum refining furnace |
| 07/25/2002 | WO2002057500A1 Vortex inhibitor with sacrificial rod |
| 07/25/2002 | US20020096809 Method and apparatus for metal melting, refining and processing |
| 07/25/2002 | CA2435213A1 Vortex inhibitor with sacrificial rod |
| 07/24/2002 | EP1224988A2 Gas-flushing brick for metallurgical vessels |
| 07/24/2002 | EP1224338A1 A process and apparatus for the removal of a contaminant from slag |
| 07/24/2002 | EP1224336A1 Method for injecting gases or solids into the bottom of a bath |
| 07/24/2002 | EP1029089B1 Method for continuous smelting of solid metal products |
| 07/24/2002 | EP0965024B1 Method for the production of refractory linings |
| 07/24/2002 | EP0871781B1 Process for producing foundry iron |
| 07/24/2002 | EP0799899B1 Chromium ore smelting reduction process |
| 07/24/2002 | CN1088112C Process for forming slag of converter steelmaking |
| 07/23/2002 | US6424672 Device for producing slag in an electric arc furnace |
| 07/23/2002 | US6424671 Process for making steel |
| 07/23/2002 | US6423114 Pressure control |
| 07/18/2002 | US20020094009 Charging material preheater with replaceable shaft wall portions |
| 07/18/2002 | US20020093128 Vortex inhibitor with sacrificial rod |
| 07/17/2002 | EP1222315A1 Method and device for introducing bulk material into a metallurgical vessel |
| 07/17/2002 | EP1124995B1 Direct-current arc furnace with central charging shaft for steel production and method of producing steel |
| 07/16/2002 | US6419724 Method for reducing iron oxides and for melting iron and installations therefor |
| 07/16/2002 | CA2188645C Metallurgical furnace vacuum slag removal |
| 07/11/2002 | US20020088102 Revamping of a basic oxygen furnace installation to provide an electric furnace facility |
| 07/10/2002 | EP1221494A1 An austenitic stainless steel less crack-sensitive during forming and a manufacturing method thereof |
| 07/04/2002 | WO2002052051A2 Methods of melting titanium and other metals and alloys by plasma arc or electron beam |
| 07/04/2002 | US20020085614 Induction heating furnace and bottom tapping mechanism thereof |
| 07/04/2002 | US20020085613 Induction heating furnace and bottom tapping mechanism thereof |
| 07/04/2002 | US20020083794 Fine-particulate metal such as sponge iron; metal melt and slag layer floating on top of the metal melt; metal added with a supply means dipping into the slag layer and energy is added in the form of electric arcs. |
| 07/04/2002 | DE10132575C1 Refractory outlet used in the wall of a metallurgical vessel for steel melts has electrodes made from metal having a high melting point and/or formed from one of its oxides |
| 07/03/2002 | EP0784193B1 Metal fusion furnace and metal fusing method |
| 07/03/2002 | CN1357055A Method for receiving metallic chromium from slag contg. chromium oxide |
| 07/03/2002 | CN1357054A Method for optimising operating conditions of smothered arc furace |
| 06/27/2002 | US20020080847 Induction heating furnace and bottom tapping mechanism thereof |
| 06/27/2002 | DE10060727A1 Positioniereinrichtung für Brennstoff/Sauerstoff-Lanzen Positioning device for fuel / oxygen lances |
| 06/26/2002 | CN1355853A Method for producing melt iron |
| 06/26/2002 | CN1355151A Air-permeable material for repairing furnace |
| 06/25/2002 | US6409793 Method for processing steel slags containing chromium |
| 06/25/2002 | US6409790 Processing metal oxides with carbon and heat |
| 06/19/2002 | EP1214162A1 Purge plug |
| 06/19/2002 | CN1354263A Seam-free furnace-building method for fixed converter |
| 06/19/2002 | CN1354262A Topside multiple blowing converter process |
| 06/18/2002 | CA2192806C Slag control apparatus for molten metal vessels |
| 06/13/2002 | DE10060217A1 Blaslanze Lance |
| 06/13/2002 | DE10059840A1 Lance for introducing oxygen into molten metal has a helix arrangement formed in the suction zone of a suction support |
| 06/13/2002 | DE10059440A1 Verbrennungsverfahren und impulsstromgesteuerte Brennstoff/Sauerstoff-Lanze Combustion method and pulse-current-controlled fuel / oxygen lance |
| 06/12/2002 | EP1213553A2 Positioning device for combustible/oxygen lances |
| 06/12/2002 | EP1080236B1 Variably insertable combined lance with displaceable burner and blower lance bodies |
| 06/12/2002 | EP0970339B1 Method to load scrap for electric arc furnace and relative system |
| 06/12/2002 | CN1353770A Discharge channel for melting furnaces and pouring ladles |
| 06/11/2002 | US6404800 Charging material preheater with replaceable shaft wall portions |
| 06/11/2002 | US6402808 Direct smelting process |
| 06/11/2002 | US6402805 Method for an improved energy input into a scrap bulk |
| 06/06/2002 | WO2002044617A1 Method of combustion and impulse current controlled fuel/oxygen lance |
| 06/06/2002 | DE10059303A1 Kippbarer Konverter Tilting converter |
| 06/05/2002 | EP1211328A2 Tiltable converter mounted with support bracket and pivot bearing |
| 06/05/2002 | EP1211327A2 Oxygen lance |
| 06/04/2002 | US6400748 Method for operating an electric arc furnace to build up and maintain foamed slag |
| 06/04/2002 | US6400747 Quadrilateral assembly for coherent jet lancing and post combustion in an electric arc furnace |
| 06/04/2002 | US6399016 Direct smelting plant |
| 06/04/2002 | US6398842 Apparatus for injecting solid particulate material into a vessel |
| 05/29/2002 | EP1209243A2 Multifrequency equipment for sensing the state of the electrodes in electric-arc furnaces |
| 05/29/2002 | DE4420869C2 Konverter-Schwimmkegel Converter swimming cone |
| 05/29/2002 | CN1085828C Multi-stage gas wave refrigerator |
| 05/28/2002 | US6395052 Method for producing directly-reduced iron, liquid pig iron and steel |
| 05/23/2002 | WO2002040721A1 Converter oxygen blowing method and upward blowing lance for converter oxygen blowing |
| 05/23/2002 | WO2001075183A3 System for detecting inclusions in molten metals |
| 05/23/2002 | DE10154713A1 Porous plug used for blowing reaction gases and/or rinsing gases into metal melts, especially non-ferrous metals, such as aluminum comprises a refractory rinsing body has channels |
| 05/22/2002 | EP0921201B1 Reduced pressure smelting furnace |
| 05/22/2002 | CN1350629A Multichambered stellmaking apparatus and method of steelmaking using this apparatus |
| 05/22/2002 | CN1350594A Method of decarburisation and dephosphorisation of a molten metal |
| 05/22/2002 | CN1085257C Steel slag and ferriferous material reprocessing process useful to produce pig iron and environmentally compatible slags |
| 05/21/2002 | US6393043 Tiltable arc furnace |
| 05/16/2002 | WO2002039043A1 Method for controlling the temperature of components in high temperature reactors |