| 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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| 05/02/2008 | CA2667541A1 Method of regulating the output of carbon monoxide in a metallurgical melting process |
| 04/30/2008 | EP1440174B1 Iterative cycle process for carbon supersaturation of molten metal and solid metals obtained thereby |
| 04/30/2008 | DE102006050888A1 Control of carbon dioxide during steel production comprises feeding oxygen into melt to remove carbon as carbon dioxide, actual amount produced being measured and compared with desired value with regard to oxygen and carbon present |
| 04/30/2008 | CN201053021Y Cauterizing device for removing cold steel |
| 04/30/2008 | CN101169656A Converter tilting electric transmission and control system |
| 04/30/2008 | CN101168786A Converter steel-smelting technique |
| 04/30/2008 | CN100385017C Industrial furnace and associated jet element |
| 04/29/2008 | US7365841 Method for analysis of a molten material, device and immersion sensor |
| 04/29/2008 | US7364691 Metallurgical vessel |
| 04/24/2008 | WO2008046452A1 Calcium ferrite sinter, production thereof, and use of same |
| 04/24/2008 | US20080093780 Discharge Nozzle For Molten Metal In Molten Metal Vessel, Method For Operation Of Converter Having The Discharge Nozzle, And Sleeve Replacing Apparatus For Discharge Nozzle Of Molten Metal Vessel |
| 04/24/2008 | US20080092692 charging electric arc furnace with unaggumulated carbon forming polymer ( PET, other plastics), formed carbon acts as reducing agent for metal oxide and acts as fuel and can be oxidized into carbon oxides to cause slag foaming, when iron oxide feed charged, reduction takes place to form C, Fe alloy |
| 04/23/2008 | CN201049957Y Mammoth converter steel-tapping hole heavy bit reamer |
| 04/23/2008 | CN201049956Y Oxygen gun fast safety storage support for smelting steel |
| 04/23/2008 | CN201049955Y Oxygen gun automatic adjusting device for smelting steel |
| 04/22/2008 | US7361205 Method for production of metallic elements of high purity such as chromes |
| 04/17/2008 | WO2008017724A3 Aggregate and filler extracted from slag |
| 04/17/2008 | WO2007121539A3 Device and method for the dynamic control of combined burners and of lances for blowing oxygen into an oven |
| 04/17/2008 | US20080088069 Molten metal transporting container |
| 04/17/2008 | US20080087135 Microwave heating method and apparatus for iron oxide reduction |
| 04/16/2008 | EP1910763A1 Method for determining at least one state variable of an electric arc furnace, and electric arc furnace |
| 04/16/2008 | CN201046975Y Molten iron desulfurization stir head |
| 04/16/2008 | CN201046974Y Bottom-blowing type intermediate frequency smelting furnace |
| 04/16/2008 | CN201046973Y Revolving furnace tap hole sliding gate valve apparatus |
| 04/16/2008 | CN201046972Y Revolving furnace mouth flange and protection shield joining device |
| 04/16/2008 | CN101161825A Novel process for steel-smelting |
| 04/16/2008 | CN101161406A Method for manufacturing thick-walled cylinder steel forging of coal liquifaction hydrogenator |
| 04/16/2008 | CN100381583C Steel smelting and carburating method |
| 04/10/2008 | WO2008040524A1 Method for operating a converter |
| 04/10/2008 | WO2007067650A3 Furnace material detection system for a metal making lance |
| 04/09/2008 | CN101160499A Lance extraction |
| 04/09/2008 | CN101157963A Tamping material leveling unit |
| 04/08/2008 | CA2398344C Method for treating slags or slag mixtures on an iron bath |
| 04/02/2008 | EP1601802B1 Elevated discharge gas lift bubble pump and furnace for use therewith |
| 04/02/2008 | CN201043183Y Combined forging and stamping type conical oxygen spray pistol |
| 04/01/2008 | CA2332724C Apparatus for injecting solid particulate material into a vessel |
| 03/26/2008 | EP1902158A1 Laser cladding on low heat resistant substrates |
| 03/26/2008 | CN201040763Y Converter auxiliary gun probe gripper device |
| 03/26/2008 | CN201040762Y Air-actuated slag-blocking device |
| 03/20/2008 | WO2008032638A1 Method of recycling zinc-containing converter dust |
| 03/20/2008 | WO2008031469A1 Method for pouring melt from a tiltable metallurgic vessel and system for performing the method |
| 03/20/2008 | US20080069763 Method for manufacturing titanium oxide-containing slag |
| 03/20/2008 | CA2662412A1 Method for pouring off melt from a tiltable metallurgical vessel and installation for carrying out the method |
| 03/19/2008 | EP1899425A1 Anti-corrosion pigments coming from dust of an electic arc furnace and containing sacrificial calcium |
| 03/19/2008 | CN201037146Y Slag blocking mark |
| 03/19/2008 | CN101144111A Technique and combined system for removing dust from steelmaking convertor smoke by dry method and reusing waste heat |
| 03/19/2008 | CN100375893C Carrier tube for sensors |
| 03/12/2008 | EP1771265B1 Gas washing device |
| 03/12/2008 | CN201033790Y Oxygen lance nozzle without welding |
| 03/12/2008 | CN101139644A High-basicity refining slag for slag washing of revolving furnace steel-making |
| 03/12/2008 | CN101139641A Methods of implementing a water-cooling system into a burner panel and related apparatuses |
| 03/12/2008 | CN101139640A Revolving furnace tap hole sliding gate slag-fending valve apparatus |
| 03/12/2008 | CN100374582C Steel smelting and carburating method |
| 03/12/2008 | CN100374581C Full homogeneous barium-containing skimming ball for steel making in converter |
| 03/05/2008 | EP1779705B1 Method and device for operating an electric-arc furnace |
| 03/05/2008 | CN201031237Y Molten iron blowing desulfuring spray gun |
| 03/05/2008 | CN201031236Y Molten iron desulfurize agitator head |
| 03/05/2008 | CN201031235Y Hanging connecting mechanism under converter body |
| 03/05/2008 | CN201031234Y Automatically splicing oxygen lances quick change device for steel-smelting |
| 02/28/2008 | US20080047691 Heat Exchanger |
| 02/28/2008 | US20080047396 Method for Controlling a Molten Metal Bath Bubbling in a Metallurgical Vessel and a Device for Carrying Out Said Method |
| 02/28/2008 | DE102007038002A1 Recyclate, useful as aggregate to e.g. concrete and cement, comprises slag resulting from extraction of metals, preferably metal smelting slag and iron smelting slag containing less amount of free calcium oxide or free magnesium oxide |
| 02/27/2008 | EP1831407B1 Method and installation for the production of secondary steel based on scrap |
| 02/27/2008 | CN201027208Y Spray gun protecting copper water container for electric furnace steel making |
| 02/27/2008 | CN201027207Y Automatic throw device of carbon, temperature, and oxygen detecting probe of basic bessemer steel converter |
| 02/27/2008 | CN100371463C Combined-blowing converter bottom gas supply element blocking-preventing device and method |
| 02/21/2008 | US20080041189 Process For Improving Energy Supply To A Scrap Bulk |
| 02/20/2008 | EP1888989A1 Smelting or reduction furnace, in particular electric arc furnace with an open, semi-closed or closed configuration |
| 02/20/2008 | EP1888795A2 Continuous steel production and apparatus |
| 02/20/2008 | EP1888793A1 Manufacture of ferroalloys |
| 02/20/2008 | EP1888792A1 Method for regulating the melting process in an electric-arc furnace |
| 02/20/2008 | EP1888791A1 Forehearth |
| 02/20/2008 | CN201024184Y Dust-proof sound-collecting device |
| 02/20/2008 | CN201024183Y Composite bed type structural steel slag modifier granule |
| 02/20/2008 | CN101126113A Revolving furnace smelt method for high-carbon low-phosphorus steel |
| 02/20/2008 | CN100370036C Slit type ladle bottom blowing powder injection process and apparatus |
| 02/14/2008 | WO2008017797A1 Radiative post combustio |
| 02/14/2008 | WO2006103114A8 Method and apparatus for the recovery of the secondary metallurgy (lf) slag and its recycling in the steel production process by means of electric arc furnace |
| 02/14/2008 | US20080035320 Heat exchanger system used in steel making |
| 02/14/2008 | US20080034922 Method of Degassing Molten Metal |
| 02/13/2008 | CN101121992A Method for producing strong annealed steel hot-rolled sheet coil |
| 02/07/2008 | DE102006034007A1 Verfahren und Vorrichtung zum Eintragen eines Mediums in einen thermischen Behandlungsraum Method and apparatus for the insertion of a medium in a thermal treatment chamber |
| 02/06/2008 | EP1884731A1 Methods of implementing a water-cooling system into a burner panel and related apparatuses |
| 02/06/2008 | CN201016118Y Furnace wall oxygen gun protective equipment |
| 02/06/2008 | CN101120103A Furnace system and method for melting down metallic or metal-containing feed material |
| 02/06/2008 | CN101117653A Converter body drum-type skirt cover |
| 02/06/2008 | CN101117652A Gas modifying combustion-compensating device for converter evaporation cooling air flue |
| 02/06/2008 | CN101117651A Converting process for converter low-silicon molten iron |
| 02/06/2008 | CN100367046C Measurement of wear of fireproof lining of metallurgical vessel |
| 01/30/2008 | CN201012928Y Revolving furnace auxiliary gun probe unloading device |
| 01/30/2008 | CN101113495A Method for extracting iron titanium vanadium from high-titanium iron concentrate |
| 01/30/2008 | CN100365138C Method for mfg. composite carbon containing pellets and device thereof |
| 01/30/2008 | CN100365136C Method and apparatus for delivering metallurgically improved molten metal |
| 01/29/2008 | US7322496 Brick body for rotary nozzle |
| 01/23/2008 | EP1881286A1 Method and device for feeding a medium into a thermal treatment chamber |
| 01/23/2008 | EP1880783A1 Ladle refining of steel |
| 01/23/2008 | CN201010664Y Oxygen lance vibration based slag state detecting device of oxygen top blown converter |
| 01/23/2008 | CN201010663Y Ladle mouth dross extractor with function of preventing lift hook unhooking |
| 01/23/2008 | CN201010662Y High-efficiency slag-blocking ring for revolving furnace molten steel |
| 01/23/2008 | CN201010661Y Swivel connector for revolving furnace |