| 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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| 02/18/2009 | CN201195733Y Slag block device positioning device in slag block process of revolving furnace pouring |
| 02/18/2009 | CN101368223A Method for deflection bottom tapping of revolving furnace |
| 02/18/2009 | CN101368222A Fluorin-free composite quick slag-forming constituents for convertor steelmaking and method of producing the same |
| 02/18/2009 | CN100462466C Method of producing low-temperature high-toughness steel and steel plate |
| 02/18/2009 | CN100462446C Method for melting and decarburization of iron carbon alloy |
| 02/17/2009 | US7491360 Mounting enclosure for burners and particle injectors on an electric arc furnace |
| 02/17/2009 | US7491348 Composition of matter tailoring: system I |
| 02/17/2009 | CA2297232C Apparatus and method for stirring molten metal using electromagnetic field |
| 02/12/2009 | WO2009018796A1 Device for slag-free tapping or for transferring a melt |
| 02/12/2009 | WO2008153440A3 Tuyer device for introducing gas media under a liquid metal level |
| 02/12/2009 | US20090038439 Process for producing steel for high-carbon steel wire material with excellent drawability and fatique characteristics |
| 02/11/2009 | EP2023068A1 Microwave iron-making furnace |
| 02/11/2009 | CN101365810A A dust recycling system for enhanced availability of Corex |
| 02/11/2009 | CN101363069A Simple upper furnace repair equipment and furnace repair technology |
| 02/11/2009 | CN101363068A Smelting method of low-phosphorus steel |
| 02/11/2009 | CN101362283A Manufacture method of ship rudder horn |
| 02/11/2009 | CN100460524C Novel torpedo type iron ladle car leaning device |
| 02/11/2009 | CN100460095C Converter shop dust collecting cover device |
| 02/10/2009 | US7488350 Carrier tube for sensors |
| 02/05/2009 | WO2008076901A8 Injection method for inert gas |
| 02/05/2009 | US20090031860 Production of Stainless Steel of AISI 4XX Grade Ferritic Steel in an Aod Converter |
| 02/05/2009 | US20090031854 Apparatus for the Combustion of Gas Exiting From a Furnace, for the Preheating of Scraps Entering the Furnace Itself and Related Process |
| 02/05/2009 | DE102008008033A1 Einrichtung zum schlackenfreien Abstich oder zur Überführung einer Schmelze Means for slag-free tapping or placing a melt |
| 02/04/2009 | CN201190169Y 电炉氧枪 EAF oxygen lance |
| 02/04/2009 | CN201190168Y Boring cutter for borehole of tapping hole of converter |
| 02/04/2009 | CN201190167Y Air curtain generator |
| 02/04/2009 | CN101358263A Converter gas cooling and purification method |
| 02/03/2009 | CA2122438C Control procedure of a power converter device for supplying a continuous current to an electric arc furnace |
| 01/29/2009 | US20090026668 Metal making lance assembly |
| 01/28/2009 | CN201186938Y Converter trunnion ring turning-supporting structure in air |
| 01/28/2009 | CN201186937Y Converter tapping observation door |
| 01/28/2009 | CN201186936Y Smoke baffle wall apparatus |
| 01/28/2009 | CN101353712A Apparatus for increasing production ability in iron and steel production |
| 01/28/2009 | CN100455680C Automatic regulating lance device for steel making oxygen lance |
| 01/27/2009 | US7481967 Molten metal transporting container |
| 01/27/2009 | CA2316599C A ladle, a ladle heating system and methods of heating the ladle |
| 01/22/2009 | US20090019968 Removal Method of Nitrogen in Molten Steel |
| 01/21/2009 | CN201183805Y Bidirectional moving combined type smoke dust trapping cover |
| 01/21/2009 | CN101351565A Method for manufacturing ferritic stainless steel slabs with equiaxed grain structures and the ferritic stainless steel manufactured by it |
| 01/21/2009 | CN101348845A Method for smelting titanium slag with electric stove |
| 01/21/2009 | CN101348844A Masonry method of converter lining |
| 01/21/2009 | CN101348843A Method for producing hot rolled steel strip for automotive frame |
| 01/21/2009 | CN100453657C Mono-slag converter process for producing high carbon low-phosphorus molten steel |
| 01/20/2009 | US7479251 Device and method for casting and drawing out molten iron-containing and mineral materials |
| 01/20/2009 | US7479250 Segmented well block |
| 01/14/2009 | CN201180147Y Plate type water cooling fire hole |
| 01/14/2009 | CN201180146Y Heat-proof nodular cast iron slag trap |
| 01/14/2009 | CN201180145Y Revolving furnace incline movement and oxygen gun hoisting control system |
| 01/14/2009 | CN101343677A Process for manufacturing low-silicon low-carbon deep punching/drawing steel |
| 01/14/2009 | CN100451134C Double-slag converter process for producing high carbon low-phosphorus molten steel |
| 01/08/2009 | WO2009003364A1 A manufacture process of steel in converter with top, bottom and side lances |
| 01/07/2009 | EP2010851A2 Metal making lance tip assembly |
| 01/07/2009 | EP2010682A2 Device and method for the dynamic control of combined burners and of lances for blowing oxygen into an oven |
| 01/07/2009 | EP2010681A1 Pressure control in direct smelting process |
| 01/07/2009 | CN201176446Y Bottom bowing layout structure for medium top-bottom combined blown converter |
| 01/07/2009 | CN201176445Y Converter coal gas high-temperature exhaust dust device with bag |
| 01/07/2009 | CN201175636Y Anti-wear design of one-time flue-gas dedusting gravity evaporator of steel-making system |
| 01/07/2009 | CN101338402A Copper-containing ferrite antimicrobial stainless steel belt and method for manufacturing same |
| 01/07/2009 | CN101338351A Vanadium-raising cooling agent, method for preparing same and use method |
| 01/07/2009 | CN101338350A Element protection process by bottom-blowing gas supply |
| 01/07/2009 | CN101338349A Converter steelmaking process by top, bottom and side blowing |
| 12/31/2008 | EP1848832B1 Furnace system and method for melting down metallic or metal-containing feed material |
| 12/31/2008 | CN101336302A Conveying system, combined system, and method for coupling metallurgical processes |
| 12/31/2008 | CN101333580A Laying method of non pocket block tap hole for steel making converter |
| 12/31/2008 | CN101333579A Method for producing tube blank steel for nuclear electricity |
| 12/31/2008 | CN101333578A Method for producing high carbon steel by high-catching carbon method |
| 12/31/2008 | CN100447272C Electric arc furnace smelting stainless steel mother liquid steel slag foaming agent |
| 12/31/2008 | CN100447271C Method for smelting carbon dioxide corrosion resistant steel |
| 12/30/2008 | CA2449774C Method for melting and decarburization of iron carbon melts |
| 12/25/2008 | US20080314548 Transferring molten metal from one structure to another |
| 12/25/2008 | US20080314198 Method of Melting A Mixture of Scrap Metal Using Scrap Rubber |
| 12/24/2008 | WO2008154689A1 Lance for injecting solid material into a vessel |
| 12/24/2008 | EP2004866A1 Direct smelting plant |
| 12/24/2008 | EP1957680A4 Furnace material detection system for a metal making lance |
| 12/24/2008 | EP1875147A4 Lance extraction |
| 12/24/2008 | EP1532282B1 Metallurgical slag |
| 12/24/2008 | CN201169596Y Revolving furnace coal gas dry method cloth bag purification recovering device |
| 12/24/2008 | CN101331375A Compensation system and method for arc skewing for a DC arc furnace |
| 12/24/2008 | CN101329567A Electric arc furnace energy subsection input control method |
| 12/24/2008 | CN101328526A Device for determining height of smelting tank when continuously feeding cast iron in arc furnace |
| 12/24/2008 | CN101328525A Steel-smelting converter movable smoke hood sealing arrangement |
| 12/24/2008 | CN101328524A Automatic detaching apparatus of auxiliary lance probe |
| 12/24/2008 | CN101328523A Ladle top-bottom blowing vanadium extracting method |
| 12/24/2008 | CN101328522A Smelting production method of low activation martensitic steel for fusion reactor |
| 12/23/2008 | US7468157 Impact pad for metallurgical vessels |
| 12/23/2008 | CA2367546C Coupling for a molten metal processing system |
| 12/23/2008 | CA2308744C Multi-function lance for a vacuum degassing chamber and a method of using the same |
| 12/23/2008 | CA2304337C Steelmaking using magnesium carbonate |
| 12/18/2008 | WO2008153440A2 Tuyer device for introducing gas media under a liquid metal level |
| 12/18/2008 | US20080307926 Method for Determining the Properties of the Content of an Arc Furnace |
| 12/18/2008 | DE10111394B4 Verfahren und Einrichtung zur Steuerung eines metallurgischen Prozesses mit Bildung von Schlacke auf einer Schmelzbadoberfläche Method and apparatus for controlling a metallurgical process with formation of slag on a molten bath |
| 12/17/2008 | EP2002191A2 Cooling device for use in an electric arc furnace |
| 12/17/2008 | EP2002023A1 Steel making material recycling system |
| 12/17/2008 | CN201165531Y Converter body supporting device |
| 12/17/2008 | CN201165530Y Fireproof brick for composite metallurgy |
| 12/17/2008 | CN101323891A Manufacturing method of pure high manganese steel cross frog |
| 12/17/2008 | CN101323890A Converter oxygen lance anti-fall device and control method |
| 12/17/2008 | CN101323889A Direct smelting plant |
| 12/17/2008 | CN100443596C Low density converter steel tapping slag bridge |
| 12/17/2008 | CN100443595C Switching method for feeding nitrogen and argon of reblowing converter bottom |