| 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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| 04/19/2006 | CN1252296C Method for producing ferroalloy |
| 04/19/2006 | CN1252288C Converter oxide and nitrogen top-blown dephosphorizing method |
| 04/19/2006 | CN1252287C Direct-fusing apparatus and method |
| 04/18/2006 | US7029513 Reactant delivery apparatuses |
| 04/18/2006 | US7029254 Apparatus and method for repairing a damaged portion in a tubular member made of refractory material |
| 04/13/2006 | WO2005111247A3 Refining molten metal |
| 04/13/2006 | DE102005025700B3 Sink drawing out device (10) for mouting on the external jacket of a metallurgical melting vessel has a coupling parts formed so that a turning moment is imparted to the sink on drawing it out |
| 04/12/2006 | EP1645643A1 Tuyere device for introducing gaseous media under a liquid-metal layer |
| 04/12/2006 | EP1645642A2 Automatic control method for hydraulic taphole opener |
| 04/12/2006 | EP1645641A2 Automatic control method for hydraulic taphole opener |
| 04/12/2006 | CN2771217Y Forge and press combined central water-cooled oxygen lance head assembly |
| 04/12/2006 | CN1757760A Method of smelting high nitrogen steel using additional cathode glow discharging |
| 04/12/2006 | CN1757759A Method of rotary furnace vanadium extracting technology |
| 04/12/2006 | CN1757758A Rotary furnace steelmaking process and end point control system |
| 04/12/2006 | CN1250754C Method for direct metal making by microwave energy |
| 04/12/2006 | CN1250747C Method for producing a metal melt and corresponding multifunction lance |
| 04/11/2006 | CA2235389C Changing device for a blowing lance |
| 04/06/2006 | WO2005118889A3 Tapping tube |
| 04/06/2006 | US20060071376 Apparatus for injecting solid particulate material into a vessel |
| 04/06/2006 | DE102004050701B3 Abstichrohr für ein metallurgisches Schmelzgefäß Tapping pipe for a metallurgical melting vessel |
| 04/06/2006 | DE102004046728A1 Verfahren und Einrichtung zum Herstellen von flüssigem Stahl Method and apparatus for producing liquid steel |
| 04/06/2006 | DE102004046727A1 Verfahren und Einrichtung zum Herstellen von flüssigem Stahl Method and apparatus for producing liquid steel |
| 04/05/2006 | EP1641946A1 Method for producing an alloy molten metal and associated production plant |
| 04/05/2006 | EP1641945A2 Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 04/05/2006 | CN2769224Y Rotary chute apparatus |
| 03/30/2006 | US20060065071 reducing oxidic iron particles of the slag with the dissolved carbon of the reducing agent in iron melt to form metallic iron and CO, then oxidizing CO to CO2; forming environmentally compatible cement clinker substitute; low cost, avoid dust loss, lower CO2 emission |
| 03/30/2006 | DE102004044481A1 Process and assembly to pre-heat HBI ingots with inert gas emerging from heater vessel at less than 200 degrees Centigrade |
| 03/29/2006 | EP1640462A2 Method and device for the production of molten steel |
| 03/29/2006 | EP1573073B1 Vessel for the metallurgical treatment of pig iron, steel melts and similar, in particular a converter vessel |
| 03/29/2006 | EP1169115B1 Coupling for a molten metal processing system |
| 03/29/2006 | CN1752230A Method for mfg. composite carbon containing pellets and device thereof |
| 03/29/2006 | CN1752220A Slag line dry-spray mending method for converter |
| 03/29/2006 | CN1247799C Production method for reducing and fining the high-carbon chromium bearing steel D-type impurity |
| 03/23/2006 | US20060060028 Refining ferroalloys |
| 03/22/2006 | EP1637823A1 Metal melting furnace and method as well as use for melting of metals |
| 03/22/2006 | EP1636390A2 Method and device for treating melt metals by means of a refining oxygen-based agent |
| 03/22/2006 | CN1246484C Lining of the cone of a converter and magnesium carbon refractory brick |
| 03/22/2006 | CN1246483C Converter fire wall slag-splashing furnace-protecting method |
| 03/16/2006 | WO2005119380A3 Computer implemented control process for the production of molten pig iron |
| 03/16/2006 | WO2005052196A3 Method for pre-heating, transforming and melting a metal charge and relative plant |
| 03/16/2006 | US20060055092 Centrifugal sintering system |
| 03/16/2006 | DE10317195B4 Verfahren zur Verbesserung der Energiezufuhr in ein Schrotthaufwerk A method for improving the energy supply in a heap of scrap |
| 03/14/2006 | CA2334277C Method for processing steel slags |
| 03/09/2006 | US20060049555 Pouring nozzle, pushing device for a pouring nozzle and casting installation |
| 03/09/2006 | US20060049554 Cooling element |
| 03/09/2006 | US20060049281 Nozzle for spraying liquid substances, dispersions, emulsions, or suspensions |
| 03/08/2006 | EP1631691A2 Method and installation for the production of steel products having an optimum surface quality |
| 03/08/2006 | EP1631404A2 Gas rinser with suitable slot-shaped canals |
| 03/08/2006 | EP1560937B1 Method and device for cooling blowing lances |
| 03/08/2006 | EP1497602A4 Control of refractory wear |
| 03/08/2006 | CN1743489A High-manganese steel smelting process and high-manganese steel casting |
| 03/08/2006 | CN1743466A Combined-blowing converter bottom gas supply element blocking-preventing device and method |
| 03/07/2006 | US7008687 Protective strap |
| 03/02/2006 | WO2006021515A1 Method and device for operating an electric-arc furnace |
| 03/02/2006 | WO2006021066A1 System of gas and/or gas and powders injection in liquid metals throough rotary refractory lance |
| 03/02/2006 | WO2004104232A8 Method for producing foamed slag on high-chromium melts in an electric furnace |
| 03/02/2006 | CA2577540A1 System of gas and/or gas and powders injection in liquid metals through rotary refractory lance |
| 03/01/2006 | EP1630238A1 Method of recovering metallic elements from slag containing metaloxides |
| 03/01/2006 | EP1629699A1 Direct current arc furnace |
| 03/01/2006 | EP1629126A1 Method for producing foamed slag on high-chromium melts in an electric furnace |
| 03/01/2006 | EP1511871B1 Refining ferroalloys |
| 03/01/2006 | EP1432954B1 Method and device for assembling and disassembling a lower vessel of an electric arc furnace |
| 03/01/2006 | CN1742102A An improved smelting process for the production of iron |
| 03/01/2006 | CN1244253C 感应炉 Induction furnace |
| 03/01/2006 | CN1243836C Apparatus for injecting gas into vessel and metallurgical vessel utilizing the same apparatus |
| 02/28/2006 | US7004992 Reducing chromium oxide with silicon to obtain a molten metal, discharging slag produced and adding a basic flux to refine |
| 02/23/2006 | WO2005069977A3 Method for producing low carbon steel |
| 02/23/2006 | US20060038327 Gas supply system for a metallurgical furnace and operating method for said system |
| 02/23/2006 | US20060038326 Injector-burner for metal melting furnances |
| 02/23/2006 | US20060037673 Chromium-containing metal and manufacturing method thereof |
| 02/23/2006 | US20060037436 smelting iron-containing source material, having iron present as oxide and/or a partially metalized state, in reactor containing molten bath having a slag phase, utilizing injection of fuel/reductant and oxygen-containing gas into slag to generate heating and reducing conditions |
| 02/23/2006 | DE10315007B4 Schmelzofen und Verfahren zum Entfernen von den Schmelzeablauf verstopfenden Zapfen von Schmelzen Melting furnace and process for removing clogging of the melt flow of molten pin |
| 02/22/2006 | EP1627085A1 Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace |
| 02/22/2006 | EP1627084A1 Method for utilizing slag |
| 02/22/2006 | CN1242908C Half hang type trailer of scrap steel carrier vehicle dedicated for rotating furnace |
| 02/16/2006 | US20060032327 Adding a binder to quicklime fines, then pelletizing; fluxing agent in a steel production operation, treating waste water and sewage; as soil neutralizing agents and nutrients; in ground stabilization for construction; |
| 02/16/2006 | CA2575191A1 Non-contact exhaust gas measurement by means of ftir-spectrometry in metallurgical installations |
| 02/15/2006 | EP1626097A1 Steelmaking process |
| 02/15/2006 | EP1625238A1 Direct smelting plant |
| 02/15/2006 | CN1242074C Blast furnace blow in method for elongating blast furnace service life |
| 02/15/2006 | CN1241704C Melted iron highly performance slag digging method and dedicated apparatus therefor |
| 02/14/2006 | US6999495 Method and apparatus for spatial energy coverage |
| 02/14/2006 | US6996989 Process to recover energy from hot gas |
| 02/09/2006 | WO2006013239A2 Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 02/08/2006 | EP1623778A1 Automatic deslagging apparatus, particularly for plants for processing nonferrous metals |
| 02/08/2006 | CN2756639Y Heat insulation device for repairing steel-smelting furnace lining |
| 02/08/2006 | CN1731061A Method for repairing furnace lining of intermediate frequency furnace for steelmaking |
| 02/08/2006 | CN1730705A Microalloyed reinforcing steel bar containing chromium and niobium, and its production process |
| 02/08/2006 | CN1240852C Electricity generating apparatus of comprehensive using rotating furnace gas and waste heat of steam |
| 02/08/2006 | CN1240850C A process and apparatus for producing metals and metal alloys |
| 02/02/2006 | US20060022388 Metallurgical vessel |
| 02/02/2006 | DE102004033433A1 Method for pre-heating sponge iron comprises passing a hot circulating gas through an sponge iron material, transferring the heat energy of the gas to the material and heating in a heat exchanger to a pre-heating temperature |
| 02/02/2006 | CA2575098A1 Apparatus for injecting solid particulate material into a vessel |
| 02/01/2006 | EP1621641A2 Apparatus for injecting solid particulate material into a vessel |
| 02/01/2006 | EP1374113A4 Primary products production system and method |
| 02/01/2006 | CN2755102Y Top-blown oxygen gun sealed channel |
| 02/01/2006 | CN1729390A A process for keeping a tuyere passing through a metallurgical vessel free of a skull |
| 02/01/2006 | CN1729067A Gas flushing device for metallurgical melting pots |
| 02/01/2006 | CN1727509A Austenitic nonmagnetic steel, and preparation method |
| 02/01/2006 | CN1239716C A gas injection lance |