| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 06/02/2004 | EP1423546A1 Molten metal pump and furnace for use therewith |
| 06/02/2004 | CN1502217A Power control system for AC electric arc furnace |
| 06/01/2004 | US6742699 Method for manufacturing a cooling element and a cooling element |
| 06/01/2004 | CA2393187C Oxy-fuel combustion system and uses therefor |
| 05/27/2004 | WO2004044511A1 Metallurgical melting vessel comprising a tuyere arrangement, and method for secondary metallurgical treatment |
| 05/27/2004 | WO2004044510A1 Device for balancing overpressure or depression spaces |
| 05/27/2004 | WO2004044509A2 Lance for injecting fluids for uniform diffusion within a volume |
| 05/27/2004 | US20040101021 Method for periodically elongating an electrode for an electric arc furnace |
| 05/27/2004 | US20040099091 Metallurgy; comprises melting device, electric arc furnace, and air refining process; decarbonization; for reversible treatment of unreduced coverter slag |
| 05/27/2004 | DE10253254B3 Elektrodenverbindung mit beschichteten Kontaktflächen Electrode connection with coated contact surfaces |
| 05/26/2004 | CN1499163A Combustible gas furnace for melting of metal |
| 05/25/2004 | CA2200440C Apparatus and method for the supply of molten metal |
| 05/21/2004 | WO2004042105A1 Method for preparing a coating for metallurgical furnace cooling element |
| 05/20/2004 | US20040097145 Electrode connection with coated contact surfaces |
| 05/19/2004 | EP1420485A2 Electrode connection with coated contact surfaces |
| 05/19/2004 | EP1419355A1 Metallurgical oven and a material basket for a metallurgical oven |
| 05/19/2004 | DE10249333A1 Metallurgisches Schmelzgefäß Metallurgical melting vessel |
| 05/12/2004 | EP1259651B1 System for producing steel |
| 05/12/2004 | CN2615617Y 地沟转窑 Trench rotary kiln |
| 05/06/2004 | WO2004038317A2 Metallurgical melting container |
| 04/29/2004 | WO2004036131A1 Electric furnace for steel making |
| 04/29/2004 | WO2004035837A1 Revamping of a basic oxygen furnace into an electric furnace for making steel |
| 04/29/2004 | WO2004007775A3 Direct melting and refining of metal oxide material |
| 04/28/2004 | EP1413174A1 Mounting arrangement for auxiliary burner or lance |
| 04/28/2004 | CN1492209A Mounting structure of auxiliary burning nozzle or jet gun |
| 04/27/2004 | US6728291 Melting vessels provided with a cooled bottom electrode |
| 04/22/2004 | WO2004033976A1 Furnace binding and adjustment systems |
| 04/22/2004 | US20040076919 Paint baking oven with radiant tube heating elements and method of using same |
| 04/21/2004 | EP1409992A2 Method and apparatus for improved process control in combustion applications |
| 04/21/2004 | CN1490557A Water outlet device for smelting furnace and fused water heater |
| 04/20/2004 | US6723276 Scrap melter and impeller |
| 04/20/2004 | US6722161 Rapid glass melting or premelting |
| 04/15/2004 | US20040069192 Furnace binding and adjustment systems |
| 04/15/2004 | DE202004000766U1 Chassis for an electrically heated combustion chamber with a lifting hearth comprises an oven chamber panel and a linear drive with a lifting hearth support fixed or removably mounted |
| 04/13/2004 | US6719944 Method and apparatus for deslagging and tapping an integrated electric steel making furnace |
| 04/08/2004 | US20040066830 Electrode and method for arranging the electrode in electric arc furnaces |
| 04/07/2004 | EP1404472A2 Method and apparatus for metal pouring |
| 04/07/2004 | EP1332232B1 Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel |
| 04/07/2004 | EP1032713A4 Method and apparatus for installation of refractory material into a metallurgical vessel |
| 04/07/2004 | CN1145006C Method and device for emptying metallurgical melt furnace by tipping |
| 04/01/2004 | WO2003070227A9 Taste-masked film-type or wafer-type medicinal preparation |
| 03/31/2004 | CN1485449A Top-blowing oxygen apparatus for electric-arc steel furnace |
| 03/30/2004 | US6712875 Including main hearth having melting cavity with two opposed overflows, adjustable feed chute positioned to provide metal chips to hearth, two molds aligned and in fluid communication with overflows, overhead heat source for selective heating |
| 03/25/2004 | US20040056394 Method and apparatus for optimized mixing in a common hearth in plasma furnace |
| 03/25/2004 | US20040056026 Method and apparatus for heat treatment of raw materials |
| 03/25/2004 | US20040055733 Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes |
| 03/24/2004 | CN2607552Y Combined air quantity distributing regulating valve |
| 03/24/2004 | CN1484748A Method and apparatus for feeding a stack of metallc sheets into a melting furnace |
| 03/18/2004 | US20040051218 Cooling element |
| 03/17/2004 | CN1482391A Extensionless coherent jet system with aligned flame envelope ports |
| 03/11/2004 | US20040046293 Method for oxy-fuel combustion |
| 03/10/2004 | EP1395382A1 Molten metal dosing furnace with metal treatment and level control |
| 03/10/2004 | CN2606319Y Flue gas purifier of iron alloy electric furnace |
| 03/04/2004 | DE10332866A1 Doppelofenanlage für die Erzeugung von Stahlwerkstoffen Double oven plant for the production of steel materials |
| 03/04/2004 | DE10308982B3 Device for equalizing pressures prevailing in a melting chamber and cooling water system in an electroslag remelting plant comprises a chamber of a piston storage unit |
| 03/03/2004 | CN1140760C Method for jetting air into smelting metal by gun/burner |
| 02/26/2004 | US20040035510 High-quality copper plate having increased cooling effect and high efficiency |
| 02/26/2004 | US20040035330 Heating mixtures of shale oils or tar sands and lime, to form slags used as cement fineness |
| 02/26/2004 | DE10237759A1 Elektrode sowie Verfahren zu deren Anordnung in Elektro-Lichtbogenöfen Electrode and methods of assembly in electric arc furnaces |
| 02/25/2004 | EP1391523A1 Twin-furnaces unit for steel production |
| 02/25/2004 | EP1391522A2 Electrode and its disposition in an electric arc furnace |
| 02/24/2004 | US6696013 Metallurgical furnace with scrap metal preheater and dispenser |
| 02/24/2004 | CA2178498C Process and device for regulating the position of the tip of an electric furnace electrode |
| 02/19/2004 | US20040033184 Removing carbon from fly ash |
| 02/18/2004 | EP1389896A1 Method for periodically elongating an electrode for an electric arc furnace |
| 02/17/2004 | US6693949 Method and device for operating electric arc furnaces and/or resistance furnaces |
| 02/17/2004 | US6693948 Apparatus for arc-melting cold iron source and method thereof |
| 02/17/2004 | US6693947 Pouring out all molten carbon steel produced to provide empty furnace, adding molten metal to empty furnace before next batch operation |
| 02/17/2004 | CA2217329C Furnace plant |
| 02/11/2004 | CN1138123C Double chamber steel making apparatus and method of steelmaking using this apparatus |
| 02/11/2004 | CN1138122C Smoke and fire enclosed type secondary combustion heating furnace |
| 02/10/2004 | US6689309 Apparatus for clearing dust accretions in connection with a smelting furnace |
| 02/10/2004 | US6689182 Method and device for producing molten iron |
| 02/05/2004 | WO2004011866A1 Cooling element |
| 02/04/2004 | EP1114191B1 A direct smelting process |
| 02/04/2004 | CN2602329Y 箱式炭素焙烧炉 Box-type carbon baking furnace |
| 02/04/2004 | CN1472493A Furnace internal-external combining collecting mixed purified short procedure dustproof method and apparatus thereof |
| 01/29/2004 | US20040017837 Methods and apparatus for improved energy efficient control of an electric arc furnace fume extraction system |
| 01/28/2004 | EP1383713A1 Rapid glass melting or premelting |
| 01/28/2004 | CN1471498A Fire-resistant substance and method for producing a fire-resistant lining |
| 01/28/2004 | CN1470837A Holding furnace combustion system |
| 01/27/2004 | US6683281 Means and method for heating |
| 01/22/2004 | WO2004007778A1 Continuous steelmaking plant |
| 01/22/2004 | WO2004007775A2 Direct melting and refining of metal oxide material |
| 01/22/2004 | DE10227239A1 Metallurgisches Gefäß, insbesondere Elektrolichtbogenofen als Schnauzenkipper A metallurgical vessel, in particular electric arc furnace as a muzzle tipper |
| 01/21/2004 | EP1381817A1 Cooling element for cooling a metallurgical furnace |
| 01/21/2004 | CN1469933A Method for producing stainless steels, in particular high-grade steels containing chromium and chromiumnickel |
| 01/15/2004 | DE10328574A1 Verfahren und Vorrichtung zur Ausbildung kohärenter Gasstrahlen Method and apparatus for forming a coherent gas jets |
| 01/14/2004 | EP1380804A1 Cooling device for a smelting furnace, smelting furnace with such a cooling device and cooling method for a smelting furnace |
| 01/14/2004 | CN1134645C Metallurgical furnace unit |
| 01/13/2004 | US6676888 Swivel base tilting rotary furnace |
| 01/07/2004 | EP1055090B1 Charging device for low blast furnaces |
| 01/02/2004 | EP1376010A1 Extensionless coherent jet system with aligned flame envelope ports |
| 01/02/2004 | EP1373583A1 Method and device for preventing slag from flowing along when tapping a molten metal |
| 01/02/2004 | EP1373150A2 Fusing acceleration and improved process control |
| 01/01/2004 | US20040000747 Without the need for a lance extension to establish a recirculation zone for the gases ejected from the lance; providing oxygen forsteelmaking operations such as electric arc furnaces |
| 12/31/2003 | WO2004001309A1 Electric furnace |
| 12/31/2003 | CN1132780C Conversion method for atomizing sprayed water to replace filler of saturation and hot water tower |
| 12/30/2003 | CA2086702C Blowing lance suspension with integrated medium supply |
| 12/26/2003 | CA2433206A1 Extensionless coherent jet system with aligned flame envelope ports |