| 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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| 06/13/2007 | CN2910957Y Tangential water jetting type active chimney of evaporated cooling flue of steelmaking converter |
| 06/13/2007 | CN2910956Y Coiled-pipe air-seal type active chimney of evaporated cooling flue of steelmaking converter |
| 06/13/2007 | CN2910955Y Lower header lifting type chimney fixed at converter mouth of evaporated cooling flue of steelmaking converter |
| 06/13/2007 | CN2910954Y Tube-packing type chimney fixed at converter mouth of evaporated cooling flue of steelmaking converter |
| 06/13/2007 | CN2910953Y Flow-guiding structure type chimney fixed at converter mouth of steelmaking converter evaporated cooling flue |
| 06/13/2007 | CN2910952Y Forced circulation type evaporated cooling flue of steelmaking converter |
| 06/13/2007 | CN2910951Y Expansion joint structure type evaporated cooling flue of steelmaking converter |
| 06/13/2007 | CN2910950Y Small straight section unsymmetrical bending tube type evaporated cooling flue of steelmaking converter |
| 06/13/2007 | CN2910949Y Surface hot spraying type evaporated cooling flue of steelmaking converter |
| 06/13/2007 | CN2910948Y Sheath-like, water circulation chimney at converter mouth of evaporated cooling flue of steelmaking converter |
| 06/12/2007 | US7228960 Hot material conveyor |
| 06/07/2007 | WO2007031825A3 Processing metallurgical slag |
| 06/07/2007 | US20070126162 Metal making lance slag detection system |
| 06/06/2007 | EP1791984A1 System of gas and/or gas and powders injection in liquid metals through rotary refractory lance |
| 06/06/2007 | EP1253390B1 Water jacket of arc furnace |
| 06/06/2007 | DE19801295B4 Einrichtung zur Regelung eines Lichtbogenofens Means for controlling an arc furnace |
| 06/06/2007 | CN2908521Y Inclined hole type air brick for bottom-blowing of converter |
| 06/06/2007 | CN1977056A Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 06/06/2007 | CN1977055A Metallurgical processing installation |
| 06/06/2007 | CN1974795A Refing steel ladle hoisting method and rotating bench unit |
| 06/06/2007 | CN1974793A Method of using CO2 in sputtering protection of steel making converter |
| 06/06/2007 | CN1320148C High-manganese steel smelting process and high-manganese steel casting |
| 06/06/2007 | CN1320131C Method and device for cooling blowing lances |
| 06/06/2007 | CN1320129C Lance for injecting particulate material into liquid metal |
| 06/05/2007 | US7227882 System and method of processing electric arc furnace dust |
| 06/05/2007 | US7225953 Valve gate assembly |
| 06/02/2007 | WO2007062680A1 Method and foundry for producing high-manganese, low-carbon steel |
| 06/02/2007 | CA2733474A1 Method of and smelter for producing steel with high manganese and low carbon content |
| 05/30/2007 | EP1530648B1 Methods and device for decarbonising a steel melt |
| 05/30/2007 | CN2905812Y Screw-jointed copper steel braze welded oxygen gun nozzle |
| 05/30/2007 | CN2905811Y Light converter chute |
| 05/30/2007 | CN2905810Y Semi-mounted traction wheel type converter chute |
| 05/30/2007 | CN1973054A Tapping tube for a metallurgical fusion pot |
| 05/24/2007 | US20070113708 Controlling retention time of oxides in moving hearth furnace; increasing nickel content; efficiency; consistancy; high grade alloy using low grade feedstock |
| 05/23/2007 | CN2903086Y Converter bearing supporting apparatus |
| 05/23/2007 | CN2903085Y Smelting furnace or container with vortex preventing dregs discharging apparatus |
| 05/23/2007 | CN1966751A High-cleanliness steel and processes for producing the same |
| 05/23/2007 | CN1966732A High-cleanliness steel and processes for producing the same |
| 05/23/2007 | CN1966731A High-cleanliness steel and processes for producing the same |
| 05/23/2007 | CN1966730A Method for treating converter flue gas |
| 05/23/2007 | CN1317399C Converter oxygen blowing method and upward blowing lance for converter oxygen |
| 05/23/2007 | CN1317398C Start method for directly smelting technology |
| 05/23/2007 | CN1317237C Refractory castable in use for homogeneous stopper plug of floating plug, and preparation method |
| 05/18/2007 | WO2007055404A1 Method of hot metal dephosphorization treatment |
| 05/18/2007 | WO2007054957A1 An improved lance for ld steelmaking |
| 05/17/2007 | US20070108675 Container, storing bath and a method of producing the container |
| 05/17/2007 | US20070108319 Burner and gas-injection device |
| 05/16/2007 | EP1599610B1 Gas bubbling element and corresponding gas bubbling system |
| 05/16/2007 | CN1965093A Heat exchanger system used in steel making |
| 05/16/2007 | CN1962885A Air curtain skimming device for steel-making converter |
| 05/16/2007 | CN1962884A Dry-method dust collection and surplus energy recovery device for steel-smelting converter flue gas |
| 05/16/2007 | CN1316044C Rotary furnace steelmaking process and end point control system |
| 05/16/2007 | CN1315596C Gas flushing device for metallurgical melting pots |
| 05/15/2007 | US7217121 Method and apparatus for improved process control in combustion applications |
| 05/10/2007 | US20070102852 Multi-outlet casting nozzle |
| 05/10/2007 | US20070101821 Method for pre-heating, transforming and melting a metal charge and relative plant |
| 05/09/2007 | EP1409750B1 Vortex inhibitor with sacrificial rod |
| 05/09/2007 | EP1337800B1 Cooling element |
| 05/08/2007 | CA2401146C Sensor and method for measuring level of molten metal |
| 05/08/2007 | CA2321651C Blasting lance with a gas/liquid mixing chamber and a method for the expansion cooling thereof |
| 05/08/2007 | CA2296879C Process for the treatment of steel work gases |
| 05/03/2007 | US20070096373 Tuyere device for introducing gaseous media under a liquid-metal layer |
| 05/03/2007 | DE102005018021B4 Ausziehvorrichtung für einen Gasspülstein Extractor for a gas purging plug |
| 05/03/2007 | DE102005018020B4 Auszieh- und Eindrückvorrichtung für einen Gasspülstein The extraction and indentor for a gas purging plug |
| 05/02/2007 | EP1779705A1 Method and device for operating an electric-arc furnace |
| 05/02/2007 | CN2895431Y Molten iron pretreatment desulfurizing magnesium-spraying gun |
| 05/02/2007 | CN1313768C Extensionless coherent jet system with aligned flame envelope ports |
| 05/01/2007 | US7211127 For ladle refinement of steel to be directly cast into thin steel strip in a continuous strip caster; includes a computer executing a number of software algorithms for determining one or more parameters |
| 05/01/2007 | CA2393264C Water-cooling jackets for electric arc furnaces |
| 04/25/2007 | EP1776576A1 Non-contact exhaust gas measurement by means of ftir spectroscopy on metallurgical plants |
| 04/25/2007 | CN1954086A Method for reducing cr in metallurgical slags containing cr |
| 04/25/2007 | CN1952182A Method for making copper oxygen gun nozzle |
| 04/19/2007 | WO2004024371A3 Molten metal pressure pour furnace and metering valve |
| 04/19/2007 | DE10150628B4 Elektrolichtbogenofenanlage mit einem Abgaskrümmer Electric arc furnace with an exhaust manifold |
| 04/18/2007 | EP1572399B1 Covering means for a top slag, method for the production thereof and use of the covering means |
| 04/18/2007 | EP0886775B1 Method and immersion sensor to measure electrochemical activity |
| 04/18/2007 | CN1950523A Tapping pipe |
| 04/18/2007 | CN1948512A Oxygen top blown rotary converter air curtain slag retaining steel outlet |
| 04/18/2007 | CN1311086C Highly clean steel and production method |
| 04/17/2007 | US7204954 Container |
| 04/12/2007 | US20070082312 Method of charging fine-grained metals into an electric-arc furnace |
| 04/12/2007 | US20070079667 Method of producing stainless steel by re-using waste material of stainless steel producing process |
| 04/12/2007 | DE10347947B4 Industrieofen und zugehöriges Düsenelement Industrial furnace and associated nozzle member |
| 04/12/2007 | DE102005047966A1 Method for treating residual materials such as dust, scale, coarse slurry and fine slurry produced during the production of iron and steel comprises mixing the residual materials with an organic binder, forming blanks and storing the blanks |
| 04/11/2007 | EP1772672A1 Device for cooling exhaust gases |
| 04/11/2007 | EP1771265A1 Gas washing device |
| 04/11/2007 | EP1656462B1 Compact micro-porous media device for degassing molten metal |
| 04/11/2007 | CN2888385Y Slag scraper for oxygen gun |
| 04/11/2007 | CN2887885Y Full homogeneous skimming ball for making steel in converter |
| 04/11/2007 | CN1946859A Furnace type structure of heating furnace |
| 04/11/2007 | CN1309857C Microalloyed reinforcing steel bar containing chromium and niobium, and its production process |
| 04/11/2007 | CN1309856C Method for manufacturing continuous casting low carbon steel containing boron in small square billets |
| 04/11/2007 | CN1309846C Vessel for the metallurgical treatment of pig iron or steel melts |
| 04/10/2007 | US7201868 Direct smelting plant |
| 04/05/2007 | US20070074602 Method of reagent injection using a heat pipe |
| 04/04/2007 | CN1940093A Composite circulating gasification cooler of rotating furnace |
| 04/04/2007 | CN1308463C Direct smelting process and apparatus |
| 04/03/2007 | US7198181 Stopper for reliable gas injection |
| 04/03/2007 | CA2367782C Quadrilateral assembly for coherent jet lancing and post combustion in an electric arc furnace |
| 03/29/2007 | US20070068425 Process of inertization (dampening) of steel making slag for economical reuse |