| 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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| 08/17/2000 | WO2000047782A1 An improved process for making steel |
| 08/17/2000 | WO2000023626A8 Off-gas hood for a basic oxygen furnace and method of repair |
| 08/16/2000 | EP1028166A2 Composition for hindering the formation of iron oxides in steel-melting slag and EAF scrap- based steelmaking process using the same |
| 08/16/2000 | EP1027462A1 Method and device for controlling the formation of foamed slag in an arc furnace |
| 08/16/2000 | EP0793731B1 Process and apparatus for the manufacture of steel from iron carbide |
| 08/15/2000 | US6104743 Electric arc furnace cooling apparatus |
| 08/09/2000 | EP1025267A1 Method for smelting fine grained direct reduced iron in an electric arc furnace |
| 08/09/2000 | EP0739989B1 Process for melting metal materials |
| 08/09/2000 | CN1262708A Steelworks converter with cone cooling system |
| 08/09/2000 | CN1262707A Apparatus and method for cooling basic oxygen furnace trunnion ring |
| 08/03/2000 | WO2000045090A1 Gasification melting furnace for wastes and gasification melting method |
| 08/03/2000 | WO2000044947A1 Method for producing liquid pig iron |
| 08/03/2000 | DE19846100C2 Gleichstromlichtbogenofen zur Herstellung von Stahl sowie Verfahren hierzu DC arc furnace for producing steel and method therefor |
| 08/02/2000 | CN1261657A Measuring equipment and measuring method for melting slag thickness in steel making |
| 08/02/2000 | CN1055126C Iron containing scrap melting method |
| 08/01/2000 | US6096261 Coherent jet injector lance |
| 07/27/2000 | WO2000043562A1 Stainless steels |
| 07/27/2000 | WO2000043554A1 Device for preheating scrap |
| 07/27/2000 | DE19902438A1 Scrap preheating equipment, especially for the cold iron or steel scrap charge of an electric arc furnace, comprises a charging chamber positioned above a preheating chamber and has inlet and outlet openings operated as locks |
| 07/26/2000 | EP1021574A1 Apparatus and method for stirring molten metal using electromagnetic field |
| 07/25/2000 | US6093235 Process for decarbonising a high-chromium steel melt |
| 07/19/2000 | EP1019554A1 Pyrometallurgical method and device for separating zinc and/or cadmium from lead in metallurgical residues |
| 07/19/2000 | CN1260768A Process for making expanded slag |
| 07/18/2000 | CA2082836C Process and device to avoid contamination of tapping steel by flush slag with a tiltable converter |
| 07/13/2000 | WO2000040945A1 Liquid copper hydrogen sample probe |
| 07/13/2000 | WO2000040352A1 Coupling |
| 07/13/2000 | DE19948848C1 Nozzle brick for injecting flushing gas into molten metal in a metallurgical vessel has a gas entry opening located at least partially outside the pitch circle of a biasing spring of a non-return valve within a gas supply pipe |
| 07/13/2000 | CA2340243A1 Liquid copper hydrogen sample probe |
| 07/12/2000 | EP1017860A1 Refractory wall, metallurgical vessel comprising such a refractory wall and method in which such a refractory wall is applied |
| 07/12/2000 | EP1017619A1 Oxygen-fuel boost reformer process and apparatus |
| 07/12/2000 | EP0842302B1 Slag treatment |
| 07/12/2000 | CN2387120Y Slag scrapping appts. for furnace mouth of converter |
| 07/12/2000 | CN1259580A System for automatic balance rotating torque of converter |
| 07/11/2000 | US6086818 Device for coupling a blowing lance to a collector |
| 07/11/2000 | US6086817 Off-gas hood for a basic oxygen furnace and method of repair |
| 07/05/2000 | EP1015653A1 Metallurgical vessel |
| 07/05/2000 | CN1259172A Method for controlling a smelting reduction process |
| 07/05/2000 | CN1054255C Complete DC arc furnace equipment |
| 07/04/2000 | US6083296 Method of producing metals and metal alloys |
| 07/04/2000 | US6083294 Method of treating dust exhausted from melting furnace |
| 06/29/2000 | WO2000037688A1 Method for denitriding molten steel during its production |
| 06/29/2000 | DE19962632A1 Measuring system, for measuring slag thickness on molten steel in a ladle, comprises a computer for determining the atmosphere-slag and slag-steel interfaces from immersion lance load variation |
| 06/29/2000 | CA2356370A1 Method for denitriding molten steel during its production |
| 06/27/2000 | US6079476 Method for producing pre-treated molten metal castings |
| 06/22/2000 | WO2000036161A2 Method for feeding fines in a light-arc furnace |
| 06/22/2000 | WO2000035831A2 Method and device for producing a composite element from a ceramic inner part and a metal jacket |
| 06/20/2000 | US6077324 Decarburizing and dephosphorizing a first melt of an iron carrier in an electric arc furnace, removing slag, adjusting alloy content of remaining phosphorus slag-free melt by treating with oxygen and inert gas with alloy carriers |
| 06/15/2000 | WO2000034532A1 Reduction of chromium content in slag during melting of stainless steel in electric arc furnaces |
| 06/15/2000 | CA2354006A1 Reduction of chromium content in slag during melting of stainless steel in electric arc furnaces |
| 06/14/2000 | CN1053473C Method and apparatus for producing metal and metal alloy |
| 06/13/2000 | US6074598 Method and apparatus for slag separation sensing |
| 06/13/2000 | CA2164388C Melt shop layout |
| 06/08/2000 | WO2000017590A9 Apparatus and method for tapping a furnace |
| 06/07/2000 | EP1006201A1 Method of judging slag forming state in electric furnace steel production and method of operating electric furnace |
| 06/07/2000 | EP0748392B1 Method for melting fine particles containing carbon |
| 06/06/2000 | US6071467 Technique and apparatus for ladle cleanout |
| 06/06/2000 | US6071466 Submergible probe for viewing and analyzing properties of a molten metal bath |
| 06/02/2000 | WO2000005421A8 Blast furnace with narrowed top section and method of using |
| 05/31/2000 | EP1004682A1 Monolithic ceramic gas diffuser for injecting gas into a molten metal bath |
| 05/31/2000 | EP1003919A1 Apparatus and method for cooling a basic oxygen furnace trunnion ring |
| 05/31/2000 | EP0691411B1 Process for the continuous refining of metal and a facility for carrying out said process |
| 05/31/2000 | CN1254762A Airflow blowing method and device for oxygen gun of converter |
| 05/31/2000 | CN1053015C Gas blowing-in nozzle of molten metal and its application method |
| 05/30/2000 | US6068676 Stain-resistant, acid-resistant and heat-resistant high-grade steels of high purity and low gas content produced by melting metal charge in a crucible of specific volume, alloying, refining, chemically reducing and controlling process gases |
| 05/24/2000 | EP1002880A1 Quick change blow lance with lockable plug-and-socket coupling |
| 05/24/2000 | EP0909334B1 Method for making steel in a liquid melt-fed electric furnace |
| 05/24/2000 | CN2379482Y Three-functional composite prob plastic insertion piece for convertor sublance |
| 05/24/2000 | CN1254019A Ladle finer reduction foaming agent |
| 05/24/2000 | CN1254018A Converter fire wall slag-splashing furnace-protecting method |
| 05/24/2000 | CA2290270A1 Monolithic ceramic gas diffuser for injecting gas into a molten metal bath |
| 05/23/2000 | CA2183784C Apparatus for melting fine particles containing carbon and method for melting such fine particles using the apparatus |
| 05/18/2000 | WO2000028097A1 Integrated device to inject technological gases and powdered material and method to use the device for the processing of baths of molten metal |
| 05/18/2000 | WO2000028096A1 Nozzle for device to inject oxygen and technological gases and inverse dimensioning method |
| 05/17/2000 | CN2378105Y Converter smoke wetting dust-removing antistopping up apparatus |
| 05/11/2000 | WO2000026420A1 Method of producing molten iron in duplex furnaces |
| 05/10/2000 | EP0922117B1 Device for coupling a blow lance with a header |
| 05/10/2000 | CN2377255Y Feeding device for treatment of converter slag by drum process |
| 05/10/2000 | CN1252525A Immersed detecting and controlling needle for liquid detection |
| 05/09/2000 | US6060015 Metallurgical furnace unit |
| 05/09/2000 | US6059854 Process for processing waste incineration residues |
| 05/09/2000 | US6059070 Soundproofed conduit to discharge fumes |
| 05/09/2000 | CA2059062C Arc furnace electrode control |
| 05/03/2000 | EP0997716A1 Fluid immersion probe |
| 05/03/2000 | EP0996749A1 Method for controlling a smelting reduction process |
| 05/02/2000 | CA2138718C Converter process for the production of iron |
| 04/27/2000 | WO2000023626A1 Off-gas hood for a basic oxygen furnace and method of repair |
| 04/26/2000 | EP0994972A1 Steelworks converter with cone cooling system |
| 04/26/2000 | CN1251618A Electric furnace with insulated electrode and process for producing molten metals |
| 04/26/2000 | CN1251392A Device for preventing primary slag from mixing with discharged molten steel through improving components of material |
| 04/25/2000 | US6053962 Scrap melting process |
| 04/20/2000 | WO2000022176A1 A process and an apparatus for producing metals and metal alloys |
| 04/20/2000 | WO2000021816A1 Rail-mounted transporting device for ultra-heavy loads |
| 04/20/2000 | WO2000005421A9 Blast furnace with narrowed top section and method of using |
| 04/20/2000 | DE19849433C1 Eintauch-Meßsonde zur Messung in Flüssigkeiten Immersion probe for measurements in liquids |
| 04/20/2000 | DE19848004A1 Sealing device for the tap hole of a tiltable converter, comprises front and back metal plates and a deformable core mixture, which serves as a refractory material and comprises easily meltable hydrocarbon compounds |
| 04/19/2000 | CN2374551Y Boring device for converter tapping hole |
| 04/19/2000 | CN1251139A Pressure converter steel making method |
| 04/19/2000 | CN1250813A Method for reforming slags system of smelting steel with low-Si molten iron or semisteel by using slag inclusion of converter as slag modifier |
| 04/19/2000 | CN1051580C Method of reducing metal oxide in rotary harth furnace heated by oxidizing flame |
| 04/18/2000 | CA2237139C Process and apparatus for backing-up or supplementing a gas supply |