| 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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| 12/16/2008 | US7465422 Cooling element |
| 12/11/2008 | US20080302211 Moving separate or separable containers containing a mixture of iron oxide and carbonaceous material through the furnace zone to the discharge end; preheating; reducing; melting and fusing iron and slag formed; discharging from containers, and returning empty containers to the charging end of the furnace |
| 12/10/2008 | CN201162022Y Flue gas dedusting connector bend apparatus |
| 12/10/2008 | CN201162021Y Non-power off feeding system for electric arc furnace eka-general material scrap steel |
| 12/10/2008 | CN201162020Y Oxygen gun control device |
| 12/10/2008 | CN101319274A Novel process for reutilization of revolving furnace mud |
| 12/10/2008 | CN101319257A Bottom blowing ventilating structure of combined-blowing revolving furnace |
| 12/10/2008 | CN101318287A Method for manufacturing 460Mpa high-toughness medium plate for bridge |
| 12/04/2008 | WO2008122527A3 Method and device for preparing a reducing agent for use in a metal making process, metal making process and metal making apparatus using said device |
| 12/04/2008 | WO2008002585A8 Oxygen injection method |
| 12/04/2008 | DE102006029724B4 Verfahren und Ofen zum Schmelzen von Stahlschrott Method and furnace for melting steel scrap |
| 12/04/2008 | DE102004054026B4 Lanze zum Einleiten eines insbesondere gasförmigen Mediums in ein flüssiges Metall und Verfahren zur Herstellung Lance for introducing an in particular gaseous medium in a liquid metal and processes for preparing |
| 12/03/2008 | EP1997916A1 Method of denitrifying molten steel |
| 12/03/2008 | EP1996885A1 Method for determining the position and orientation of a measuring or repairing device and an apparatus operating on the basis of the method |
| 12/03/2008 | EP1888791A4 Forehearth |
| 12/03/2008 | CN201159596Y Flame-proof lining brick for revolving furnace, electric furnace and ladle |
| 12/03/2008 | CN201158680Y Water cooling wall for steel making oxygen gun of electric arc furnace |
| 12/03/2008 | CN201158679Y Steel making holder claw of electric stove |
| 12/03/2008 | CN201158678Y Oxygen gun pressboard fixing device of steel making revolving furnace |
| 12/03/2008 | CN201158677Y Probe simulation connector of auxiliary gun of revolving furnace |
| 12/03/2008 | CN101314805A High-efficiency dephosphorization smelting method for medium phosphor hot metal revolving furnace |
| 12/03/2008 | CN101314801A Cross sliding type sublance system |
| 12/03/2008 | CN100439517C Terminal low-oxygen control method for top bottom combined blowing converter |
| 11/27/2008 | WO2008144627A1 Enhanced alloy recovery in molten steel baths utilizing cored wires doped with dispersants |
| 11/27/2008 | WO2008144617A1 Enhanced alloy recovery in molten steel baths utilizing cored wires doped with deoxidants |
| 11/27/2008 | WO2008142925A1 Baking repairing material |
| 11/26/2008 | CN201154972Y Converter wet method dust cleaning apparatus |
| 11/26/2008 | CN201154281Y Downstriker circular seam venturi tube |
| 11/26/2008 | CN100436602C Converter bearing supporting device |
| 11/25/2008 | CA2409520C Method and apparatus for delivering metallurgically improved molten metal |
| 11/20/2008 | US20080282841 Method and Device for Charging Feedstock |
| 11/20/2008 | DE102007022900A1 After-burning of the exhaust gas from steel production plant, comprises heating container by burning of a fuel with an oxygen-containing gas, removing the exhaust gas from the container, and after-burning the exhaust in another container |
| 11/19/2008 | EP1386011B1 Ladle refining of steel |
| 11/19/2008 | CN101307373A Anti-falling mechanism for sublance body |
| 11/19/2008 | CN101306435A Production method of toothed wheel |
| 11/18/2008 | US7452401 jet of oxygen is discharged from a convergent-divergent passageway of a nozzle at a supersonic velocity as part of a structured jet having an outer circumferential region composed of a mixture of fuel and oxygen that auto-ignites and combusts in the furnace atmosphere and not within the nozzle |
| 11/13/2008 | WO2008137647A1 Process for treating particulate material containing heavy metal and an additive for use in such process |
| 11/13/2008 | WO2008136027A1 Cooled box for positioning nozzles in arc furnaces |
| 11/13/2008 | WO2008134822A1 Improvements in the production of ferro-alloys |
| 11/13/2008 | DE102005012601B4 Lageranordnung Bearing assembly |
| 11/13/2008 | CA2685210A1 Improvements in the production of ferro-alloys |
| 11/12/2008 | EP1989334A2 Method for cooling metallurgical vessels |
| 11/12/2008 | EP1534419B1 Propulsive nozzle injection method in fluidised bed reactors |
| 11/12/2008 | CN201148443Y AOD revolving furnace flue gas waste heat recovery apparatus |
| 11/12/2008 | CN201148442Y Device for fixing and adjusting oxygen lance |
| 11/12/2008 | CN101305105A Method of hot metal dephosphorization treatment |
| 11/12/2008 | CN101303196A Apparatus for injecting gas into vessel |
| 11/12/2008 | CN101302569A Ultra high power direct-current arc furnace deoxidation furnace-protective agent, making method and use thereof |
| 11/12/2008 | CN100432465C Bearing device |
| 11/12/2008 | CN100432240C Electric furnace highly effective metallurgy complexing agent |
| 11/12/2008 | CN100432239C Method of building a direct smelting plant |
| 11/11/2008 | US7449142 Plant for use in continuous steelmaking process |
| 11/06/2008 | WO2008131614A1 A SMELTING METHOD OF LOW-P STAINLESS STEEL BASE USING LOW-GRADE IRONSTONE CONTAINING Ni AND Cr |
| 11/06/2008 | US20080272524 Metallurgical Lance with Annular Gas Flow Control |
| 11/05/2008 | CN201144252Y Multi-freedom degree carbon-oxygen gun manipulator for electric furnace door |
| 11/04/2008 | US7445748 Holding furnace and metering device for metal baths |
| 11/04/2008 | US7445747 Apparatus for injecting solid particulate material into a vessel |
| 10/30/2008 | US20080265474 Tiltable Metallurgical Vessel |
| 10/30/2008 | US20080265473 Inducing swirl in a gas flow |
| 10/30/2008 | US20080264206 Cooling system arranged downstream of furnace for cooling the iron sinter and includes convective cooling system for forcing air into the sinter; efficient, rapid and uniform cooling |
| 10/29/2008 | CN201141034Y Pre-stress block seat mechanism of revolving furnace |
| 10/29/2008 | CN201141033Y Auxiliary gun slag-scraping device |
| 10/29/2008 | CN101294771A Inducing swirl in a gas flow |
| 10/29/2008 | CN101294232A Cross hinge connecting mechanism |
| 10/29/2008 | CN101294231A Apparatus for injecting gas into a vessel |
| 10/29/2008 | CN101294230A Duplex steelmaking technique of revolving furnace |
| 10/29/2008 | CN100429323C Tapping pipe |
| 10/23/2008 | WO2008125700A1 Hardened and tempered steel and method for producing parts of said steel |
| 10/23/2008 | US20080257109 High Vacuum In-Situ Refining Method for High-Purity Materials and an Apparatus Thereof |
| 10/23/2008 | US20080257105 Inserting the tires at a slower rate into an electric arc furnace and separate from the scrap steel, as compared to batch feeding them or feeding them as tires and scrap steel bundles, so that larger quantities of tires at a specific controlled location and time may be used |
| 10/22/2008 | CN201136878Y Mechanical sealing device for active fume hood of converter evaporated cooling system |
| 10/22/2008 | CN201136877Y Generating set through recovery waste beat of converter coal gas and dust cleaning apparatus by dry method |
| 10/16/2008 | WO2008123971A1 Wire injection lance nozzle insert |
| 10/16/2008 | WO2008122527A2 Method and device for preparing a reducing agent for use in a metal making process, metal making process and metal making apparatus using said device |
| 10/16/2008 | WO2008122095A1 Metallurgical conversion method |
| 10/16/2008 | US20080250899 Using reducing agent; heating ; reducing metal oxide in slag to melt metals; solidification |
| 10/16/2008 | CA2682348A1 Wire injection lance nozzle insert |
| 10/15/2008 | EP1979494A1 Method for the production of a foamed slag in a metal bath |
| 10/15/2008 | CN101285111A Sublance elastic guiding trolley |
| 10/15/2008 | CN101285110A Sublance trolley anti-falling mechanism |
| 10/15/2008 | CN101285109A Four-point suspended converter connecting apparatus |
| 10/15/2008 | CN100425706C Self patching method for rotary furnace lining |
| 10/09/2008 | WO2008119317A1 Melt metallurgical method for the production of metal melts, and transition metal-containing charge for use therein |
| 10/09/2008 | US20080246195 Method and apparatus for testing the integrity of a shroud seal on a ladle for a continuous casting installation |
| 10/09/2008 | US20080245189 Apparatus for Injecting Solid Particulate Material Into a Vessel |
| 10/08/2008 | CN201128749Y System for producing cold bonding block with steel making and steel rolling sludge |
| 10/08/2008 | CN101280390A High-strength hot rolled steel plate and manufacturing method thereof |
| 10/08/2008 | CN101280389A Steel belt for spoke of vehicle wheel and manufacturing method thereof |
| 10/08/2008 | CN101280365A Slag splashing method for nickel-copper smelting converter |
| 10/08/2008 | CN101280351A Production method of vanadium slag |
| 10/08/2008 | CN101280350A Apparatus for injecting material into a vessel |
| 10/08/2008 | CN101280347A Blast furnace-converter interface í«compact one tank modeí» process |
| 10/08/2008 | CN100424192C Self-cooling iron liquid pretreating spray gun |
| 10/07/2008 | CA2398341C Method for producing pozzolanic binders for the cement industry from steel slags using a reduction metal bath |
| 10/02/2008 | US20080237945 Apparatus for injecting material into a vessel |
| 10/02/2008 | DE202008010239U1 Verschluss Shutter |
| 10/01/2008 | EP1974063A1 Method for manufacturing ferritic stainless steel slabs with equiaxed grain structures and the ferritic stainless steel manufactured by it |
| 10/01/2008 | CN201125253Y Tower for repairing rotary furnace |
| 10/01/2008 | CN201125252Y Floating type mechanical pressing slag buffer plug |
| 10/01/2008 | CN101275173A Control method for equilibrium operation of converter dust-removing flue cooling fan |