| 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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| 07/19/2006 | CN1264994C Process for preparing slag by pelletization of steel-making dust slime |
| 07/13/2006 | WO2006072363A1 Hearth furnace, method, and use of said hearth furnace for melting metals |
| 07/13/2006 | US20060153726 Hot material conveyor |
| 07/13/2006 | DE102004033433B4 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 |
| 07/12/2006 | EP1678333A2 Tapping tube |
| 07/12/2006 | EP1144696B1 Method of producing molten iron in duplex furnaces |
| 07/12/2006 | CN2795226Y Converter slag blocking plug |
| 07/12/2006 | CN2795225Y Self protective type oxygen gun slag scraper |
| 07/12/2006 | CN2795224Y Sealing device for waste gas conversion system |
| 07/12/2006 | CN1802443A Direct smelting plant and process |
| 07/12/2006 | CN1800417A Slag making recarburized ball and its production method |
| 07/12/2006 | CN1800416A Apparatus for injecting solid particulate material into a vessel |
| 07/11/2006 | US7074361 Ladle |
| 07/06/2006 | US20060145128 Composition of matter tailoring: system I |
| 07/06/2006 | DE102004062871A1 Metallurgisches Gefäß mit Befestigungssystem A metallurgical vessel with mounting system |
| 07/05/2006 | CN1796576A Method for maintaining converter |
| 07/05/2006 | CN1262515C Fire-resistant substance and method for producing a fire-resistant lining |
| 07/05/2006 | CN1262509C Method for treating stainless steel refining slag |
| 07/04/2006 | US7070733 Cooling system for a trunnion ring and metallurgical furnace vessel |
| 06/29/2006 | WO2006068632A1 Method for restoring the refractory masonry of industrial furnaces by ceramic facing, device for carrying out said method and method for producing a ceramic facing mixture |
| 06/29/2006 | WO2006067365A1 Method of degassing molten metal |
| 06/28/2006 | EP1673482A1 Retaining device for flushing elements |
| 06/28/2006 | EP1673481A2 Industrial furnace and associated jet element |
| 06/28/2006 | EP1673316A1 Process of inertization (dampening) of steel making slag for economical reuse |
| 06/28/2006 | EP1373581B1 Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 06/28/2006 | CN2791064Y Improved converter non-drive side trunnion |
| 06/28/2006 | CN2791063Y Converter sublance |
| 06/28/2006 | CN1795277A Method for producing foamed slag on high-chromium melts in an electric furnace |
| 06/28/2006 | CN1795276A Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace |
| 06/27/2006 | US7066981 Mixing sample with flux; preheating; melting, separation |
| 06/22/2006 | US20060131796 Vessel for the metallurgical treatment of pig iron, steel melts and similar, in particular a converter vessel |
| 06/21/2006 | CN1791686A Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 06/21/2006 | CN1791685A Method for utilizing slag |
| 06/21/2006 | CN1789437A Slit type ladle bottom blowing powder injection process and apparatus |
| 06/21/2006 | CN1789436A Melting process of weather-resistant steel |
| 06/21/2006 | CN1789435A Molten iron vanadium-extracting calcium-controlling coolant and process therefor |
| 06/21/2006 | CN1260374C Converter heat replacement hearth bottom circular seam packing method |
| 06/21/2006 | CN1260373C Connection device of movable smoke cover for converter |
| 06/20/2006 | US7063242 Refractory pouring spout and channel unit for the arrangement on an outlet of a vessel containing molten metal, especially the tundish of a strip casting installation |
| 06/15/2006 | US20060125160 Compact micro-porous media degasser |
| 06/14/2006 | DE102004058492A1 Verfahren und Anlage zur Sekundärstahlerzeugung auf Schrottbasis Method and apparatus for secondary steel production from scrap |
| 06/14/2006 | CN1786205A Single orifice converter bottom air supply brick |
| 06/14/2006 | CN1786204A Smelting method of phosphorus containing steel |
| 06/14/2006 | CN1786203A Smelting technology of weather resistant steel |
| 06/13/2006 | US7060220 Metal melting furnace |
| 06/08/2006 | WO2006058787A1 Method and installation for the production of secondary steel based on scrap |
| 06/08/2006 | US20060119019 Gas flushing device for metallurgical melting pots |
| 06/08/2006 | CA2575196A1 Method and installation for the production of secondary steel based on scrap |
| 06/07/2006 | EP1664648A2 A burner and gas-injection device |
| 06/07/2006 | EP1664355A1 Method for collecting and treating reaction gases from a production plant for molten metal and dust-removing machine therefor |
| 06/07/2006 | EP1567680A4 Method and apparatus for optimized mixing in a common hearth in plasma furnace |
| 06/07/2006 | CN2786135Y Multi-medium rotary joint for converter |
| 06/07/2006 | CN2786134Y Rotating mechanism of feeding chute |
| 06/07/2006 | CN1784500A Gas bubbling element and corresponding bubbling device |
| 06/07/2006 | CN1782101A Slag regulating agent for super high power large electric furnace smelting |
| 06/07/2006 | CN1782099A Apparatus for injecting gas into a vessel |
| 06/07/2006 | CN1258607C Ladle refining method of steel |
| 06/07/2006 | CN1258606C Device for metal reduction and melting process and method using said device |
| 06/07/2006 | CN1258389C Process to recover energy from hot gas |
| 06/06/2006 | US7056469 Starter set for brick lining of ladles used in handling molten metal |
| 06/06/2006 | CA2359697C Method and apparatus for detecting slag carryover |
| 05/31/2006 | EP1660688A1 Method of charging fine-grained metals into an electric-arc furnace |
| 05/31/2006 | CN1778971A Steel smelting process of core bar for rolling seamless steel pipe |
| 05/24/2006 | EP1659190A2 A slag conditioner composition, process for manufacture and method of use in steel production |
| 05/24/2006 | EP1659188A1 Lance for introduction of particularly gaseous media into a liquid metal and its manufacturing method |
| 05/24/2006 | EP1658467A1 Electric reducing furnace |
| 05/24/2006 | DE102005034409B3 Electric arc furnace state variable determining method, involves determining state variable with aid of transfer function that is determined by evaluation of measured vibrations and evaluation of measured data of one electrical sensor |
| 05/24/2006 | CN2782700Y Concentrated jet flow double channel oxygen gun nozzle for converter steel making |
| 05/24/2006 | CN1257301C Method for producing continuous casting alloy steel containing S and Al |
| 05/18/2006 | US20060102881 Contacting molten copper with a carbon source, cooling the molten copper to room temperature, thereby obtaining a solidified manufactured copper; exhibit long-range ordering and unique electronic character |
| 05/18/2006 | DE102005032929A1 Herstellung von Rostfreistahl der ferritischen Stahlgruppe AISI 4xx in einem AOD-Konverter Production of stainless steel of the ferritic steel group AISI 4xx in an AOD converter |
| 05/18/2006 | DE102004055206A1 Production of steel of high manganese and low carbon content from molten crude iron or molten steel and slag formers involves introducing molten ferromanganese into refining converter and continuous oxygen blasting |
| 05/17/2006 | EP1656462A2 Compact micro-porous media device for degassing molten metal |
| 05/17/2006 | EP1413174A4 Mounting arrangement for auxiliary burner or lance |
| 05/17/2006 | CN1774516A Method for improving energy supply to a scrap metal pile |
| 05/17/2006 | CN1772927A Multihole oxygen gun sprayer for converter |
| 05/11/2006 | WO2005098053A3 Method and installation for producing and increasing the annual production yield of large-scale steel products or high-quality steel products in a two-vessel installation |
| 05/11/2006 | DE102004054026A1 Lance for introducing gas into liquid metal, e.g. during steelmaking, comprising non-load bearing tubular body enclosed in refractory material and provided with reinforcement |
| 05/10/2006 | CN1771339A direct smelting plant |
| 05/10/2006 | CN1769499A Integrated production of subway double-body blast furnace, subway vortex blast furnace and multifunctional rotary membrane electric separation tube |
| 05/10/2006 | CN1255558C Production technology for melting steel by electric arc furnace converter |
| 05/10/2006 | CN1255557C Device for blowing gas into metallurgical furnace |
| 05/04/2006 | WO2006013239A3 Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 05/04/2006 | DE10207202B9 Verfahren zur metallurgischen Verwertung von metallhaltigen Schlämmen und Stäuben A method for metallurgical recovery of metal-containing dusts and sludges |
| 05/03/2006 | EP1468123B1 Method for production of metallic elements of high purity such as chromes |
| 05/03/2006 | CN1768010A Device and method for casting and drawing out molten iron-containing and mineral materials |
| 05/03/2006 | CN1254452C Aluminium and / or zirconium carbon system air permeable brick |
| 04/27/2006 | WO2006042597A1 Tapping tube for a metallurgical fusion pot |
| 04/27/2006 | WO2006042363A1 Apparatus for injecting solid particulate material into a vessel |
| 04/27/2006 | WO2005118890A3 Recovery of steel from contaminated scrap |
| 04/26/2006 | EP1472028B1 Device and method for unplugging a molten metal discharge port |
| 04/26/2006 | CN2775067Y Combined welding type oxygen gun blow head |
| 04/26/2006 | CN1763231A Method of producing metallic iron |
| 04/20/2006 | DE10326952B4 Verfahren und Vorrichtung zur Granulation flüssiger Schlacken Method and apparatus for granulation of liquid slags |
| 04/19/2006 | CN2773094Y Sealer on muzzle top of vacuum tank for steel water refined vacuum degassing apparatus |
| 04/19/2006 | CN1761839A System for optically analyzing a molten bath |
| 04/19/2006 | CN1761763A A method for direct steel alloying |
| 04/19/2006 | CN1760378A Apparatus for injecting gas into a vessel |
| 04/19/2006 | CN1760159A Refractory castable in use for homogeneous stopper plug of floating plug, and preparation method |
| 04/19/2006 | CN1759976A Technique for producing 55CrSi bull rod steel |