| 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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| 10/01/2008 | CN101274212A Device for reducing dioxins discharge during steel smelting in electric furnace and method thereof |
| 09/25/2008 | WO2008097126A3 Metallurgical annular steel making reactor |
| 09/25/2008 | US20080230966 Scrap melter and impeller therefore |
| 09/24/2008 | CN201121198Y Air feed apparatus of horizontal rotary furnace |
| 09/24/2008 | CN101271319A Steel making control device |
| 09/24/2008 | CN101270458A Metastable austenite abrasion-proof cast steel containing manganese-tungsten-aluminum |
| 09/24/2008 | CN101270403A Slugging fluxing agent of steel-smelting revolving furnace |
| 09/24/2008 | CN101270402A Revolving furnace integral parallel move hydraulic pressure fallback construction method |
| 09/24/2008 | CN100420763C Production process for grade II screw thread reinforced bar |
| 09/23/2008 | US7427190 Hydraulic device for pumping molten metal and/or controlling a molten metal flow |
| 09/17/2008 | CN101265511A Energy circulation system for converter gas flue evaporation cooling optimization |
| 09/17/2008 | CN100419090C Converter coal gas wet-type cloth bag purification recovering process and system |
| 09/10/2008 | CN101263232A Tiltable metallurgical vessel |
| 09/10/2008 | CN101260501A High-boron low-carbon abrasion resistant cast steel and heat treatment method thereof |
| 09/10/2008 | CN101260449A Steel-smelting converter gravitation dry method dust-removing and residual heat reclaiming device |
| 09/09/2008 | US7422622 Supplying solid feed materials for a direct smelting process |
| 09/09/2008 | CA2230297C Bottom-blown gas blowing apparatus for a molten metal ladle |
| 09/04/2008 | DE212007000007U1 Kohlenstaub-Einblaslanze Pulverized coal injection lance |
| 09/03/2008 | EP1963541A1 An improved lance for ld steelmaking |
| 09/03/2008 | CN201109786Y Self force type pressure regulating valve set |
| 09/03/2008 | CN101255535A Easy-cutting untempered steel and method for manufacture thereof |
| 09/03/2008 | CN101255486A Earlier stage slag-smelting method for pre-smelting electric furnace |
| 09/03/2008 | CN101255485A Dissolution casting equipment employing flat dissolution high-frequency electric furnace and technical method thereof |
| 09/03/2008 | CN101255484A Composite cooling agent for steel-smelting and production technique thereof |
| 09/03/2008 | CN101255483A Method for directly melting silicon iron with silicon ore by using converter |
| 09/03/2008 | CN101255482A Method for directly melting iron with iron ore powder or iron ore by using converter |
| 09/02/2008 | CA2429548C Coherent jet system with single ring flame envelope |
| 08/28/2008 | WO2007102881A3 Composition for reducing steelmaking slag |
| 08/28/2008 | US20080202061 Direct Smelting Plant |
| 08/28/2008 | DE102006029725B4 Verfahren und Vorrichtung zum Einbringen von Stäuben in eine Metallschmelze einer pyrometallurgischen Anlage Method and apparatus for introducing dusts into a molten metal of a pyrometallurgical plant |
| 08/27/2008 | CN201106061Y Scrap preheater for charging electric stove |
| 08/27/2008 | CN201106057Y Molten steel tank tipping |
| 08/27/2008 | CN101250606A Method for reducing dust of steel mill by using CO2 |
| 08/27/2008 | CN101250605A Method for directly melting manganese iron with manganese ore by using converter |
| 08/27/2008 | CN100414237C 金属熔解炉 Metal melting furnace |
| 08/21/2008 | DE102008009010A1 Injection lance for treating molten steel comprises metal pipe with two hollow longitudinal ribs whose cavities connect with cooling system of lance |
| 08/21/2008 | DE102004025779B4 Verfahren zur verbesserten Schlackenreaktion mit metallischen Schmelzen in Öfen bei indirekter Beheizung für die gesteigerte Reinigung der Chargierung von nichtmetallischen Einschlüssen A method for improved slag reaction with metallic melts in ovens with indirect heating for the enhanced cleaning of the charging of non-metallic inclusions |
| 08/20/2008 | EP1957680A2 Furnace material detection system for a metal making lance |
| 08/20/2008 | EP1957679A2 Conveying system, combined system, and method for coupling metallurgical processes |
| 08/20/2008 | EP1587962A4 An improved smelting process for the production of iron |
| 08/20/2008 | CN201102970Y Novel vessel slag processing equipment |
| 08/20/2008 | CN201102969Y Intelligent flexible driving mechanism |
| 08/20/2008 | CN201102968Y Supporting device of converter body |
| 08/20/2008 | CN101245402A Electricity-saving method for water supply pump of oxygen gun cooling water |
| 08/20/2008 | CN101245401A Revolving furnace sublance probe clamper device |
| 08/20/2008 | CN101245400A Recycling of coal gas of steel-smelting revolving furnace with dry method and sensible heat power generation system |
| 08/20/2008 | CN101245399A Method for applying scorification material supplementary material to convertor steelmaking |
| 08/20/2008 | CN100412446C Densified spraying system using liquid fuel flame cover |
| 08/20/2008 | CN100412210C Manganese carbon alloy ball for steel-making recarburization |
| 08/20/2008 | CN100412209C Preparation of steel-smelting carburant |
| 08/20/2008 | CN100411758C A method for making semi-processed cold rolled silicon steel in thin slab continuous casting and continuous rolling process |
| 08/19/2008 | US7413592 Linear hearth furnace system and methods regarding same |
| 08/14/2008 | WO2008097126A2 Metallurgical annular steel making reactor |
| 08/14/2008 | WO2008095575A1 Method for the reduction of a slag having a high degree of chromium in an electric arc furnace |
| 08/14/2008 | US20080192796 Method and Device for Operating an Electric-Arc Furnace |
| 08/14/2008 | DE19821981B4 Schlackerückhalter für den Abstichkanal eines Konverters mit Schwimmerverschluß und Lochsteinkanal einer Gießpfanne Slag tapping channel retainer for a converter with float and lock hole stone channel of a ladle |
| 08/14/2008 | DE102007006529A1 Verfahren und Reduktion einer hochchromhaltigen Schlacke in einem Elektrolichtbogenofen Procedures and reduction of a high chromium slag in an electric arc furnace |
| 08/14/2008 | DE102006031687B4 Element Element |
| 08/13/2008 | EP1776576B1 Non-contact exhaust gas measurement by means of ftir spectroscopy on metallurgical plants |
| 08/13/2008 | CN201099690Y Steel-smelting converter repairing equipment |
| 08/13/2008 | CN201099689Y Steel-tapping hole tube brick |
| 08/13/2008 | CN101240397A Converter-RH-LF-continuous casting technique for producing pipe line steel |
| 08/13/2008 | CN101240359A Rotary hearth furnace and screw rod for discharging reduced iron |
| 08/07/2008 | WO2008092488A1 Tiltable converter |
| 08/06/2008 | CN101237727A Power control Method and power device in electronic optical circuit system of electronic bundle impact furnace |
| 08/06/2008 | CN101235427A Method for saving electricity for dust removing water system |
| 08/06/2008 | CN100408957C Metallurgical melting vessel comprising a tuyere arrangement, and method for secondary metallurgical treatment |
| 08/06/2008 | CN100408956C Camp stove |
| 08/06/2008 | CN100408712C Quasi bainitic steel |
| 08/06/2008 | CN100408699C 直接熔炼设备 Direct smelting plant |
| 07/31/2008 | US20080181807 Carbon, silicon, manganese, chromium, nickel, molybdenum and vanadium alloys |
| 07/31/2008 | DE102006016787B4 Tauchlanze für Metallschmelzen Immersion lance for molten metals |
| 07/30/2008 | EP1553196B1 Ferronickel and process for producing raw material for ferronickel smelting |
| 07/30/2008 | CN201092579Y First venturi tube throat inlet regulating device for reclaiming converter gas |
| 07/30/2008 | CN100406579C Converter refined slaging medium and slagging technique |
| 07/24/2008 | WO2008087245A1 Method of and equipment for pretreating material that is fed into a smelting furnace |
| 07/24/2008 | WO2008087244A1 Method of pretreating material that is fed into a smelting furnace, and a preheating system |
| 07/24/2008 | WO2008086869A1 Method and device for operating a change converter unit of an oxygen steel-making plant |
| 07/24/2008 | DE102007003029A1 Verfahren und Vorrichtung zum Betrieb einer Wechselkonverter-Anlage eines Blasstahlwerks Method and apparatus for operating a changing converter unit of a Blasstahlwerks |
| 07/23/2008 | EP1756320A4 Heat exchanger system used in steel making |
| 07/23/2008 | CN201089777Y Convertor plate-type flexible connecting device |
| 07/23/2008 | CN201089776Y Convertor flue maintenance equipment |
| 07/23/2008 | CN201089775Y Oxygen gun hole mobile sealing slag-shaving device |
| 07/23/2008 | CN201089774Y Composite probe for five-functional convertor auxiliary gun |
| 07/23/2008 | CN201088898Y Annular space washing device |
| 07/23/2008 | CN101228406A Method for determining at lest one state parameter in electric arc furnace and electric arc furnace |
| 07/23/2008 | CN101228295A Laser cladding on low heat resistant substrates |
| 07/23/2008 | CN101228284A Method for determining the status of the content of an arc furnace |
| 07/23/2008 | CN101225453A Electric furnace smelting method for low-carbon low-silicon steel |
| 07/23/2008 | CN100404698C Gasification cooling flue for steel-making converter |
| 07/22/2008 | US7402274 Metal making lance slag detection system |
| 07/17/2008 | WO2008083594A1 Lime-based additive for steel smelting and the preparation method thereof |
| 07/16/2008 | EP1944381A2 Apparatus for injecting gas into a vessel |
| 07/16/2008 | CN201087201Y Conveyer for energy-saving steel making of electric furnace |
| 07/16/2008 | CN201087200Y Auxiliary gun for revolving furnace |
| 07/16/2008 | CN201087199Y Compound probe of revolving furnace auxiliary gun |
| 07/16/2008 | CN201087198Y Dedusting pellet fabrication device of electric furnace |
| 07/16/2008 | CN100402690C Mirror large-die-block preparing and producing method of 4Cr16Mo die |
| 07/16/2008 | CN100402671C Carburating method in steel smelting |
| 07/16/2008 | CN100402670C Cooling element and its manufacturing method |