Patents
Sitemap › C21 - Metallurgy of iron › C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steel; Treatment in molten state of ferrous alloys › C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381)
08/2003
08/14/2003WO2003066912A1 Management of electric arc furnace dust through a basic oxygen furnace
08/14/2003WO2003066911A1 Lining at restriction part of converter
08/14/2003WO2003066910A1 Processing electric arc furnace dust through a basic oxygen furnace
08/14/2003US20030150295 Ferroalloy production
08/14/2003CA2452406A1 Lining at restriction part of converter
08/12/2003US6604937 Coherent jet system with single ring flame envelope
08/07/2003WO2003064080A1 Device and method for unplugging a molten metal discharge port
08/06/2003EP1332232A1 Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel
08/06/2003EP1181491B1 Metallurgical vessel comprising a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel
08/06/2003EP1141422B1 Method for denitriding molten steel during its production
08/06/2003CN1434145A Method for producing continuous casting alloy steel containing S and Al
08/06/2003CN1434133A Method for controlling rising splash slag in battom of converter
08/05/2003US6602321 Direct smelting process
08/05/2003US6602317 Controlling the temperature uniformity of the center portion of the iron burden in a direct reduction shaft furnace thereby allowing a higher amount of hydrocarbons to be used throughout the reduction process; direct reduced iron
08/05/2003US6602069 Plug members for steel furnaces
07/2003
07/31/2003WO2003062479A1 Method for production of metallic elements of high purity such as chromes
07/31/2003US20030140732 Method for treating slags or slag mixtures on an iron bath
07/30/2003EP1252343B1 Method for treating slags or slag mixtures on an iron bath
07/30/2003EP1153144B1 Device for preheating scrap
07/30/2003EP0858515B2 Exchange device for a blow lance
07/30/2003CN1433483A Porous agglomerates containning iron and at least one further element from groups 5 or 6 of the periodic table for use as alloying agent
07/30/2003CN1116422C Coherent jet injector lance
07/29/2003US6599464 Steelmaking lance with integral temperature probe
07/29/2003CA2207780C Process for making expanded slag
07/29/2003CA2119056C Methods for inhibiting deposition and fouling in scrubber systems
07/24/2003WO2003060169A1 Method for the pyrometallurgical treatment of metals, metal melts and/or slags and injection device
07/24/2003US20030139638 Horizontally adding lime, optional additives, fuels and carrier gases, inert iron metallurgy slag
07/24/2003US20030137085 Method and device for preventing slag from flowing along when tapping a molten metal
07/24/2003US20030136318 Method and apparatus for clearing a powder accumulation in a powder delivery tube
07/23/2003EP1226283A4 High temperature premelting apparatus
07/23/2003EP1200634B1 Method for optimising the operating conditions of a smothered arc furnace
07/23/2003EP1187942B1 Method for producing melt iron
07/23/2003EP1114190B1 Blast furnace with narrowed top section and method of using
07/22/2003US6597722 Apparatus for arc-melting cold iron source and method thereof
07/22/2003US6596995 Remote sensing of molten metal properties
07/22/2003US6596221 Metallurgical vessel having a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel
07/22/2003CA2268623C High ductility very clean non-micro banded die casting steel and method of manufacture thereof
07/16/2003CN1430679A Apparatus for injecting solid particulate material into vessel
07/16/2003CN1430586A Method for oxidising treatment of steel works slag and resulting LD slag
07/16/2003CN1430036A Metallurigical gun and its device
07/16/2003CN1429918A Method of control foamed slag in steel making electric arc furnace
07/15/2003US6594596 System for generating mechanical waves transmitted to interior of converter, and using transmission and reflective properties of waves traveling through different media to supply measurement of parameters for process control
07/09/2003EP1325161A1 Blowing lance nozzle
07/08/2003CA2232215C Method for introducing gas into a liquid
07/03/2003US20030123942 Method and apparatus for installing or replacing a furnace tap hole insert
07/03/2003US20030122291 Metallurgical lance and apparatus
07/03/2003US20030122290 Metallurgical furnace with scrap metal preheater and dispenser
07/02/2003EP1234061B1 Apparatus and process to extract heat and to solidify molten material particles
07/02/2003EP1114195A4 A direct smelting process
07/02/2003EP1114194A4 A direct smelting process and apparatus
07/02/2003EP1114191A4 A direct smelting process
07/02/2003EP1098997A4 A direct smelting process
07/02/2003CN2558663Y Hydraulic cylinder tilting device for converter
07/02/2003CN1427898A System for detecting and measuring inclusions
07/02/2003CN1113211C Preheater for arc furnace
07/01/2003US6585800 Method for making molten metal
06/2003
06/26/2003US20030118498 Atomizing, alloying powder in aqueous solution
06/26/2003US20030116893 Apparatus and method for delivering an inert gas to prevent plugging in a slide gate
06/25/2003EP1238118A4 Martensitic stainless steel and steelmaking process
06/25/2003EP1114192A4 A process and an apparatus for producing metals and metal alloys
06/25/2003EP1112387A4 Direct smelting vessel and direct smelting process
06/25/2003CN2557529Y Slag stop cone for converter steel-tapping
06/25/2003CN1426487A Method for producing ferroalloy
06/24/2003US6582492 Reduction-melting methods capable of replacing the blast furnace in the production of molten pig iron
06/24/2003US6582491 Method for producing molten iron in duplex furnaces
06/24/2003US6581482 Sampler for melts
06/19/2003WO2003050316A1 Method for reuse of steel sheet scrap
06/19/2003WO2003050210A1 Coolable lining for a high-temperature gasification reactor
06/19/2003US20030111778 Gas blowing plug and manufacturing method therefor
06/19/2003US20030110886 Reducing chromium oxide with silicon to obtain a molten metal, discharging slag produced and adding a basic flux to refine
06/18/2003EP1319159A1 Burner nozzle
06/18/2003CN2556207Y Slag stopper for converter steel tapping
06/18/2003CN2556206Y Anti-falling oxygen gun
06/18/2003CN1424410A Recoverying method for converter gas
06/12/2003US20030106395 Reducing an iron oxide and another oxide, compacting in the absence of a binder and sintering; porosity of 20-65% by volume
06/11/2003CN1423083A Densified spraying system using liquid fuel flame cover
06/10/2003US6576039 Method and apparatus for metal pouring
06/05/2003US20030103546 Induction furnace
06/05/2003US20030102609 Method for measuring bath level in a basic oxygen furnace to determine lance height adjustment
06/04/2003EP1316621A2 Metallurgical lance and apparatus
06/04/2003EP1315841A1 Process for the metallurgical treatment of molten steel in a converter with oxygen top blown
06/04/2003EP1108071B1 Multifunction lance and use thereof
06/04/2003EP0974675B1 Pressure converter steel making method
06/04/2003EP0946756A4 Producing iron from solid iron carbide
06/04/2003CN1422509A Process and apparatus for automatically controlling slag foaming
06/03/2003US6572713 Improved wear resistance
06/03/2003CA2413153A1 Metallurgical lance and apparatus
05/2003
05/28/2003CN1420195A Method for vacuum induction smelting high-chrome super-purity ferrite stainless steel
05/22/2003WO2003042417A1 Shaft furnace metal melting system
05/21/2003CN1418970A Oxygen blasting powder spraying melting asistance technology for electric furnace steelmaking and making foam slag technology thereof
05/21/2003CN1418807A Process for producing hydrogen by utilizing gas from steel-melting as raw material
05/21/2003CN1109231C Method for melting bath in electric arc furnace
05/20/2003US6565800 Apparatus for injecting solid particulate material into a vessel
05/20/2003US6565622 Blowing mixture of carbon and oxygen into bath; forming carbon monoxide
05/15/2003US20030090044 Method and apparatus for melting metal in a shaft furnace
05/15/2003DE10150043C1 Vorrichtung und Verfahren zum gezielten Wiegen und Dosieren von Schüttgut Apparatus and method for selectively dispensing and weighing of bulk material
05/14/2003EP1310573A2 Process to produce a metal melt on the basis of a dynamic process model, including a correction model
05/14/2003CN1417549A Large-area self-flowing converter repairing material
05/14/2003CN1417353A Production process of premelt calciun aluminate slag
05/13/2003US6563855 Water jacket of arc furnace
1 ... 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 ... 144