| 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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| 11/26/2002 | CA2335866C Blast furnace with narrowed top section and method of using |
| 11/20/2002 | EP1258534A1 Quadrilateral assembly for coherent jet lancing and post combustion in an electric arc furnace |
| 11/20/2002 | CN2521223Y Stress reducing water-cooled furnace mouth |
| 11/13/2002 | CN1379826A Method and device for enclosing electric arc |
| 11/13/2002 | CN1379825A Method and use of calcium nitrate for foaming of steel-making slags |
| 11/13/2002 | CN1379115A Oxygen blowing apparatus for smelting steel, technology and application |
| 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 |
| 11/07/2002 | US20020162418 Introducing charge into inlet end of primary reactor of a reactors system while injecting oxygen; passing charge through reactor; discharging into next reactor; heating, changing chemical potential; elements are separated as melted groups |
| 11/07/2002 | DE10121967A1 Direct current arc furnace operation involves feeding a gas through the melt to raise the surface and reduce the distance to the electrode |
| 11/06/2002 | EP1090148B1 Electric arc furnace |
| 11/06/2002 | CN1377976A Converter retaining operation method of preventing splash slag and reducing iron loss |
| 11/05/2002 | USRE37897 Method for making steel in a liquid melt-fed electric furnace |
| 11/05/2002 | US6477195 Process for melting sponge iron and electric-arc furnace for carrying out the process |
| 11/05/2002 | US6475264 Direct smelting process |
| 10/31/2002 | US20020158377 Apparatus for injecting gas into a vessel |
| 10/31/2002 | US20020157582 Furnace and a method of controlling a furnace |
| 10/31/2002 | DE10124784C1 Process for acquiring operating parameters of electric arc furnaces used in the production of steel comprises measuring load changes in the form of elastic deformations on the substructure supporting the weight of the furnace vessel |
| 10/31/2002 | DE10117181C1 Verfahren und Vorrichtung zur Verhinderung des Mitfließens von Schlacke beim Abstich einer Stahlschmelze Method and apparatus for preventing the Mitfließens of slag during the tapping of molten steel, |
| 10/31/2002 | DE10035008C2 Lanze Lance |
| 10/30/2002 | EP1253390A1 Water jacket of arc furnace |
| 10/30/2002 | EP1252348A1 Iron-nickel alloy production |
| 10/30/2002 | EP1252347A1 Method for removing chrome and/or nickel from liquid slags |
| 10/30/2002 | EP1252346A1 Method for reprocessing dust or dust mixtures |
| 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 | EP1252341A1 Method for producing pozzolanic binders for the cement industry from steel slags using a reduction metal bath |
| 10/30/2002 | CN2518869Y Beam jet oxygen gun for steelmaking |
| 10/29/2002 | US6471911 Method and device for sealing a tap hole in metallurgical containers |
| 10/24/2002 | WO2002083958A1 Apparatus for injecting gas into a vessel |
| 10/24/2002 | US20020155409 Plug members for steel furnaces |
| 10/23/2002 | EP1250465A2 Thermodestruction and inertisation of halogenated waste in a metallurgical reactor |
| 10/23/2002 | EP0755736B1 Improvements in metallurgical conversion |
| 10/23/2002 | CN1376208A Method and device for introducing bulk material into a metallurgical vessel |
| 10/23/2002 | CN1375560A Phosphorus controlling method for producing ultra-low phosphorus steel |
| 10/22/2002 | CA2235499C Method and apparatus to determine and control the carbon content of steel in a bof vessel |
| 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 |
| 10/15/2002 | US6464929 Dross processing system |
| 10/15/2002 | US6463864 Gasification melting furnace for wastes and gasification melting method |
| 10/10/2002 | WO2002079529A1 Method for direct metal making by microwave energy |
| 10/10/2002 | WO2002079522A1 Ladle refining of steel |
| 10/10/2002 | US20020145237 Molten metal ladle transport arrangement |
| 10/09/2002 | EP1157139B1 Treatment of metal sulphide concentrates by roasting and arc furnace smelt reduction |
| 10/09/2002 | CN2515205Y Inductive argon oxygen powder-spraying refining high alloy steelmaking furnace |
| 10/09/2002 | CN1373229A Method for smelting stainless steel with waste steel by frequency-conversion electric induction furnace |
| 10/03/2002 | WO2002077297A1 Transfer of hot feed materials from a preprocessing plant to an electric smelting or melting furnace |
| 10/02/2002 | EP1245264A1 Exhaust gas dust collecting device |
| 10/02/2002 | EP0941471B1 Method for judging the properties of molten cast iron |
| 10/02/2002 | DE10111890A1 Slag dosing and granulating device used in steel production includes a vessel for receiving the hot slag, and a contoured roller-like module arranged below the vessel |
| 10/02/2002 | CN2514003Y Drain pipe water cooling furnace lid for steel-smelting electric furnace |
| 10/02/2002 | CN1091871C Apparats for preheating and supplying scraps |
| 09/26/2002 | WO2002075004A1 Metal-zirconia composite coating |
| 09/26/2002 | WO2002075003A2 Argon oxygen decarburisation converter control method and system |
| 09/26/2002 | WO2002075002A1 Method and apparatus for practicing carbonaceous-based metallurgy |
| 09/26/2002 | WO2002074470A1 Refractory plug or brick for injecting gas into molten metal |
| 09/26/2002 | WO2002074347A1 Technetium 99m-n2s2-congo red complexes utilizing diamide dithiolate ligand systems for radioimaging |
| 09/26/2002 | CA2440243A1 Method and apparatus for practicing carbonaceous-based metallurgy |
| 09/25/2002 | EP1243361A1 Apparatus for injecting gas into molten metal |
| 09/25/2002 | EP1242781A2 Method for operation of a smelting furnace |
| 09/25/2002 | EP1242636A1 Method and device for feeding a gas to a metallurgical vessel |
| 09/25/2002 | EP1144339B1 Method and device for producing a composite element from a ceramic inner part and a metal jacket |
| 09/25/2002 | EP1036205B1 Method and oxygen lance for injecting gases into a metallurgical tank |
| 09/18/2002 | EP1241421A2 Direct smelting plant |
| 09/18/2002 | EP1034313B1 Device and process system for preheating steel scrap |
| 09/18/2002 | CN1369568A Technology for producing high-purity high-carbon high-chromium bearing steel |
| 09/17/2002 | US6452956 Soderberg-type composite electrode for arc smelting furnace |
| 09/17/2002 | US6452955 Method for feeding fines or granules into a light-arc furnace |
| 09/17/2002 | US6450799 Coherent jet system using liquid fuel flame shroud |
| 09/17/2002 | CA2222401C Apparatus and process system for preheating of steel scrap for melting metallurgical furnaces with concurrent flow of scrap and heating gases |
| 09/12/2002 | WO2002070760A1 A furnace and a method of controlling a furnace |
| 09/12/2002 | WO2002052051A3 Methods of melting titanium and other metals and alloys by plasma arc or electron beam |
| 09/12/2002 | US20020128144 Filler sand for a ladle tap hole valve |
| 09/12/2002 | US20020127131 Austenitic stainless steel less susceptible to cracking during forming and a manufacturing method thereof |
| 09/12/2002 | DE10111394A1 Process for controlling a metallurgical process comprises forming slag on a molten bath surface by using the speed of the slag formation and degradation as control parameters for adjusting the parameters inducing slag formation |
| 09/12/2002 | DE10109694A1 Industrial gas or oil-fired burner for metal, glass or ceramics presents flame through widening conical inlet |
| 09/12/2002 | DE10108579A1 Feuerfester keramischer Körper und zugehöriges metallurgisches Schmelzgefäß Refractory ceramic body and associated metallurgical melting vessel |
| 09/11/2002 | EP1238118A2 Martensitic stainless steel and steelmaking process |
| 09/11/2002 | CN2510501Y Converter steel-tapping slag pushing off body |
| 09/11/2002 | CN1368630A Arc melting furnace |
| 09/06/2002 | WO2002069210A1 Primary products production system and method |
| 09/06/2002 | WO2002068889A1 Refractory ceramic body and associated metallurgical melting vessel comprising a channel for accommodating a device for introducing a treatment medium into a melt |
| 09/06/2002 | CA2442167A1 Primary products production system and method |
| 09/05/2002 | DE10107562A1 Device for conditioning hot metal-containing slag produced during steel production comprises buffer module, oscillating module(s) and transport module |
| 09/04/2002 | EP0991784B1 Loading system for electric arc furnaces |
| 08/29/2002 | DE10028722A1 Einrichtung für die Formierung von Plasmaströmen mit erhöhten energetischen Parametern Means for the formation of plasma streams with elevated energetic parameters |
| 08/28/2002 | EP1234193A1 Measurement of the wear of the fireproof lining of a metallurgical vessel |
| 08/28/2002 | EP1234061A1 Apparatus and process to extract heat and to solidify molten material particles |
| 08/28/2002 | CN2507870Y Slag bridge charging device |
| 08/28/2002 | CN2507869Y Tapping Hole for steelmaking electric arc furnace and top-blown oxygen converter |
| 08/27/2002 | US6440356 Apparatus for injecting gas into a vessel |
| 08/27/2002 | US6440355 Apparatus for measuring bath level in a basic oxygen furnace to determine lance height adjustment |
| 08/27/2002 | US6440195 Process and an apparatus for producing metals and metal alloys |
| 08/22/2002 | WO2001099473A8 Induction furnace |
| 08/22/2002 | US20020112567 Smelting reduction method |
| 08/21/2002 | EP1233244A2 Induction heating furnace and bottom tapping mechanism thereof |
| 08/21/2002 | EP1232675A1 Mounting arrangement for auxiliary burner or lance |
| 08/21/2002 | EP1232288A1 Method and device for pre-heating and for continuous introduction of a charge for an electric arc furnace |
| 08/21/2002 | CN2506653Y Converter bottom blowing device for steelmaking |
| 08/21/2002 | CN1365307A Purge plug |
| 08/21/2002 | CN1364944A Austenite stainless steel wire low cracking sensitivity during forming and its preparing method |