| 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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| 06/26/2001 | US6251156 Method of producing molten iron in duplex furnaces |
| 06/20/2001 | EP1108071A1 Method for producing a metal melt and corresponding multfunction lance |
| 06/20/2001 | CN2435863Y Adapter for external power supply |
| 06/20/2001 | CN2435404Y Oxygen-blowing gun slag-removing device for convertor steelmaking |
| 06/20/2001 | CN1299879A Direct-fusing apparatus and method |
| 06/20/2001 | CN1067437C A top injection lance |
| 06/14/2001 | WO2000071761A8 Electromagnetic braking process in the outlet channel of a furnace |
| 06/13/2001 | EP1105748A1 Measuring the thickness of materials |
| 06/13/2001 | EP0859866B1 Method for determining and controlling the carbon content of steel in a bof vessel |
| 06/13/2001 | EP0772015B1 Method and apparatus for preheating and melting scrap |
| 06/13/2001 | CN1067110C Process for producing foaming slag obove stainless steel melted in electric furnace |
| 06/12/2001 | US6245285 Top injection lance |
| 06/07/2001 | WO2001040728A1 Water jacket of arc furnace |
| 06/07/2001 | WO2001040528A1 Post-treatment method for deoxidizing metallurgical slag |
| 06/07/2001 | WO2001040526A1 Martensitic stainless steel and steelmaking process |
| 06/07/2001 | WO2001040523A1 Apparatus and process to extract heat and to solidify molten material particles |
| 06/07/2001 | DE19957375A1 Verfahren zur Identifikation und Bestimmung der Position insbesondere eines metallurgischen Gefäßes A method for identifying and determining the position of a particular metallurgical vessel |
| 06/07/2001 | DE10044678C1 Apparatus for continuously decarburizing and refining pig iron to fine steel comprises RH-OB reactors arranged in a row over a covered channel for complete decarburizing and refining |
| 06/07/2001 | CA2388021A1 Martensitic stainless steel and steelmaking process |
| 06/06/2001 | CN1298028A Cooling and fluxing agent for steel smelting in converter |
| 06/05/2001 | US6241941 Device for avoiding contamination of the tapped steel by flush slag in a tiltable converter with improved composition of the material |
| 06/05/2001 | US6241805 Combining a wet scrubber sludge with hot slags to form a mixture, making steel using the mixture in the process |
| 06/05/2001 | US6241798 Iron smelting process and plant according to the multiple zone smelting process |
| 06/05/2001 | CA2140262C Treatment of polyvinylchloride |
| 05/31/2001 | WO2001038900A1 Measurement of the wear of the fireproof lining of a metallurgical vessel |
| 05/31/2001 | WO2001038589A1 Method and device for pre-heating and for continuous introduction of a charge for an electric arc furnace |
| 05/31/2001 | WO2000075439A3 Method of producing foamed slag |
| 05/31/2001 | DE19956578A1 Process for preheating the charge of an electric arc furnace comprises preheating the charge, preferably, hot briquetted iron or direct reduced iron, by flue gas |
| 05/31/2001 | DE19954918A1 Feuerfester keramischer Gasspülstein Refractory ceramic gas purging plug |
| 05/31/2001 | DE19547010C2 Verfahren und Vorrichtung zur Überwachung des Prozeßablaufs bei der Strahlerzeugung nach dem Sauerstoffaufblasverfahren Method and device for monitoring the process sequence for the beam generation by the basic oxygen |
| 05/30/2001 | CN2432218Y Converter trunnion hole-enlarging device |
| 05/29/2001 | US6238453 Producing stainless steels in parallel operated vessels |
| 05/29/2001 | US6238452 Continuously charging molten pig iron into the electric arc furnace containing molten scrap metal while injecting refining gas for controlled desiliconization and decarbonization to occur with short cycle times |
| 05/29/2001 | CA2172898C Apparatus for producing molten pig iron by direct reduction |
| 05/29/2001 | CA2091768C Method of making steel in liquid bath and apparatus for effecting same |
| 05/25/2001 | WO2001036891A2 Method for operation of a smelting furnace |
| 05/25/2001 | WO2001036691A2 Taphole knockout device |
| 05/23/2001 | EP1102003A1 System for producing a single coherent jet |
| 05/23/2001 | EP1101825A1 Refractory, ceramic gas flushing brick |
| 05/23/2001 | DE19954556A1 Verfahren zum Betreiben eines Schmelzofens A method of operating a melting furnace |
| 05/23/2001 | CN1295887A Device for forming single cohervent air flow |
| 05/23/2001 | CN1066201C DC arc electric slag heating ladle furnace and control method thereof |
| 05/22/2001 | US6234406 Blasting nozzle with welded lance head for the agitation of baths |
| 05/16/2001 | EP1098998A1 Scrap metal weighing and on-line bulk material analysis process and apparatus |
| 05/16/2001 | EP1098997A1 A direct smelting process |
| 05/15/2001 | US6231806 Carbon steel or stainless steel tube when in contact with the liquid steel, interrupts the flow of gases,indicating end of useful life of system and tube is exposed and sealed with a sealing means that allows for the testing of gas output |
| 05/10/2001 | WO2001032293A1 Exhaust gas dust collecting device |
| 05/10/2001 | DE19948187A1 Process for decarburizing a steel melt in a converter comprises monitoring the temperature in the lance head of the blowing lance using a temperature sensor integrated in the lance head and regulating |
| 05/09/2001 | EP1097246A1 Method and device for sealing a tap hole in metallurgical containers |
| 05/09/2001 | EP0754245B1 Method of manufacturing pig iron or steel and cement clinker from slags |
| 05/08/2001 | US6229838 Electric arc furnace for the production of steel and method of operating this furnace |
| 05/08/2001 | US6228320 Tiltable converter |
| 05/08/2001 | US6228142 In production of molten pig iron utilizing non-coking coal; sensor for measuring distance using a laser, and process computer which obtains changing pressure in a melter gasifier, for maintaining the penetration depth |
| 05/08/2001 | US6228137 Introducing powder of carbon and zinc oxide and/or lead oxide, chemically reducing metal oxide to form bubbles of metal and carbon monoxide; stability |
| 05/03/2001 | WO2001031073A1 A process and apparatus for the removal of a contaminant from slag |
| 05/03/2001 | US20010000633 Depositing a first batch of ceramic material in a mold, firing, forming first region of gas diffuser having first gas flow characteristics, similarly second region is formed with second gas flow characteristics; an interconnected pores |
| 05/03/2001 | DE19950056A1 Montagevorrichtung zur Auskleidung eines Konverters Mounting device for lining of a converter |
| 05/03/2001 | CA2388458A1 A process and apparatus for the removal of a contaminant from slag |
| 05/01/2001 | US6224821 Quick change blow lance |
| 05/01/2001 | CA2209647C A top-blown refining method in converter featuring excellent decarburization and top-blown lance for converter |
| 05/01/2001 | CA2046928C Manufacture of ferroalloys using a molten bath reactor |
| 04/26/2001 | WO2001029271A1 Method and use of calcium nitrate for foaming of steel-making slags |
| 04/26/2001 | CA2387597A1 Method and use of calcium nitrate for foaming of steel-making slags |
| 04/25/2001 | EP1094043A1 Method for treating stainless steel refining slag |
| 04/25/2001 | EP0754246B1 Apparatus for injecting gases or fluids in general and particulates, particularly for injecting oxygen, in furnaces for the production of steel |
| 04/25/2001 | CN1292831A Blasting lance with gas/liquid mixing chamber and method for expansion cooling thereof |
| 04/25/2001 | CN1064999C Method for producing stainless steel in parallel operated vessels |
| 04/25/2001 | CN1064998C Nozzle with welded lance head for agitation of bath |
| 04/24/2001 | US6221313 Taphole knockout device |
| 04/24/2001 | US6221312 Refractory wall, metallurgical vessel comprising such a refractory wall and method in which such a refractory wall is applied |
| 04/24/2001 | CA2200961C Process and apparatus for the manufacture of steel from iron carbide |
| 04/19/2001 | WO2001027338A1 Method and device for enclosing an electric arc |
| 04/19/2001 | WO2001027337A1 Gas stopper brick for metallurgical vessels with a sealing body that is subject to screw pressure springs |
| 04/19/2001 | DE19925144C2 Verfahren zur Herstellung von Schaumschlacke A process for producing foamed slag |
| 04/19/2001 | CA2387468A1 Method and device for enclosing an electric arc |
| 04/18/2001 | EP1092785A1 Coherent jet lancing system for gas and powder delivery |
| 04/18/2001 | EP1092784A1 Assembling device for lining a converter |
| 04/18/2001 | CN2426882Y Self-controling tilting device of metal container for high-temperature liquid |
| 04/18/2001 | CN1292035A Device for preheating charging stock, comprising replaceable stack wall sections |
| 04/18/2001 | CN1291657A Flux and process for forming slag of converter |
| 04/18/2001 | CN1291528A Transmission system of gas and powder |
| 04/18/2001 | CN1064714C Method for reforming slags system of smelting steel with low-simolten iron or semisteel by using slag inclusion of converter as slag modifier |
| 04/17/2001 | US6217824 Combined forged and cast lance tip assembly |
| 04/16/2001 | CA2316505A1 Assembly device for lining of a converter |
| 04/12/2001 | WO2001025496A1 Carbon-containing agglomerates |
| 04/12/2001 | WO1997005438A3 Arc furnace in particular d.c. arc furnace, and process for preventing overheating of the furnace wall |
| 04/11/2001 | EP1090702A2 System and method for minimizing slag carryover during the production of steel |
| 04/11/2001 | EP1090261A1 Tiltable light-arc furnace |
| 04/11/2001 | EP1090152A1 Method for processing steel slags |
| 04/11/2001 | EP1090148A1 Electric arc furnace |
| 04/11/2001 | CN1290764A Oxide dispersed steel and its producing method |
| 04/11/2001 | CN1290756A Cutting blade for tap hole enloarger of steelmaking convertor |
| 04/11/2001 | CN1064410C Method for improving energy input into scrap bulk |
| 04/05/2001 | DE19945489A1 Verfahren und Einrichtung zum Einbringen von Schüttgut in ein metallurgisches Gefäss Method and apparatus for introducing bulk material into a metallurgical vessel |
| 04/04/2001 | EP1088111A1 Continous metal melting process and apparatus |
| 04/04/2001 | CN1290337A Charging device for low blast furnaces |
| 04/03/2001 | US6212218 Reusable lance with consumable refractory tip |
| 03/29/2001 | WO2001021845A1 Solid state reduction of oxides |
| 03/29/2001 | WO2001021843A1 Method and device for introducing bulk material into a metallurgical vessel |
| 03/29/2001 | WO2001021842A1 Method for injecting gases or solids into the bottom of a bath |