| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 08/11/2004 | EP1444373A1 STEEL PLATE HAVING SUPERIOR TOUGHNESS IN WELD HEAT−AFFECTED ZONE AND METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME |
| 08/10/2004 | US6772921 Refractory nozzle |
| 08/04/2004 | EP1443033A1 Refractory for furnace and furnace and method for surface treating furnace wall |
| 08/04/2004 | CN1518606A Steel plate having superior toughness in weld heat-affected zone and method for manufacturing the same, welding fabric using the same |
| 08/03/2004 | US6770366 Cored wire for introducing additives into a molten metal bath |
| 07/29/2004 | US20040144454 Heating, hot rolling, crystallization, precipitation, cooling, transformation steel slab |
| 07/28/2004 | EP1440174A2 Iterative cycle process for carbon supersaturation of molten metal and solid metals obtained thereby |
| 07/28/2004 | CN2628536Y Water-cooled carbon oxygen gun for improved metallurgical electric arc furnace |
| 07/22/2004 | DE10323233B4 Vorrichtung und Verfahren zur Erzeugung eines kohärenten Strahls mit Einzelringflammeneinhüllender Apparatus and method for generating a coherent beam with Einzelringflammeneinhüllender |
| 07/21/2004 | EP1386011A4 Ladle refining of steel |
| 07/21/2004 | EP1377689A4 Apparatus for injecting gas into a vessel |
| 07/21/2004 | CN2627005Y Energy conservation combined type compression central water-cooling oxygen gun injector |
| 07/21/2004 | CN1514025A Short flow path production line of yearly yield 50-100 thousand tons multi variety small lot special steel |
| 07/21/2004 | CN1158586C Process and apparatus for backing-up or supplementing gas supply system |
| 07/20/2004 | US6764528 Decarburization refining of molten iron from blast furnace, controlling composition in molten steel |
| 07/15/2004 | WO2004042088B1 Reclaimed magnesium desulfurization agent |
| 07/15/2004 | DE10347200A1 Entgasungsverfahren von Flüssigstahl Degassing of liquid steel |
| 07/15/2004 | DE10259335A1 Abdeckmittel für eine Topschlacke, Verfahren zu seiner Herstellung und Verwendung des Abdeckmittels Covering means for a top slag, to processes for its preparation and use of the cover |
| 07/14/2004 | CN1512924A Apparatus for transferring liquid metals from a collection container to a receiving container |
| 07/14/2004 | CN1511961A Double tank immobile interface system of vacuum refining furnace |
| 07/14/2004 | CN1157486C SYnthetic slag for reducing oxygen and sulfur content in molten steel and its slag making method |
| 07/14/2004 | CN1157485C Al-Si-Mn alloy for deoxidizing molten steel and as alloy additive and its preparing process |
| 07/08/2004 | US20040129925 Composition of matter tailoring: system I |
| 07/08/2004 | US20040129350 exhibit long-range ordering and can be distinguished by a change in energy, electronic properties, physical properties; X-ray fluorescence spectroscopy is a preferred |
| 07/07/2004 | CN1511196A Cast piece and sheet of ferritic stainless steel, and method for production thereof |
| 07/01/2004 | WO2004054742A1 Covering means for a top slag, method for the production thereof and use of the covering means |
| 07/01/2004 | WO2004031423A3 Method for making an alloy and alloy |
| 06/30/2004 | EP1433549A1 Cast iron member manufacturing method |
| 06/30/2004 | EP1315841A4 Process for the metallurgical treatment of molten steel in a converter with oxygen top blown |
| 06/24/2004 | US20040119053 Composition of matter tailoring: System I |
| 06/23/2004 | EP1431404A1 Method for refining molten iron containing chromium |
| 06/23/2004 | EP1287170A4 Apparatus for injecting solid particulate material into a vessel |
| 06/23/2004 | CN1506473A Liquid steel degassing method |
| 06/23/2004 | CN1154748C Compound iron melt desulfurizing agent |
| 06/17/2004 | US20040113130 Composition of matter tailoring: system I |
| 06/16/2004 | EP1428894A1 A method of degassing molten steel |
| 06/16/2004 | CN1153840C Novel production technology of high silicon manganese-silicon alloy |
| 06/13/2004 | CA2452902A1 Method of degasing molten steel |
| 06/10/2004 | US20040108634 Vacuum chamber notably for steel decarburisation |
| 06/10/2004 | US20040108630 Electromagnetic method and apparatus for treatment of engineering materials, porducts, and related processes |
| 06/09/2004 | EP1337679A4 Grain-refined austenitic manganese steel casting having microadditions of vanadium and titanium and method of manufacturing |
| 06/09/2004 | CN1503852A Reinforced durable tool steel method for the production thereof method for producing parts made of said steel and parts thus obtained |
| 06/09/2004 | CN1152967C Phosphorus controlling method for producing ultra-low phosphorus steel |
| 06/03/2004 | WO2004046391A1 Method and device for cooling blowing lances |
| 06/03/2004 | US20040104520 Apparatus for transferring liquid metals from a collection container to a receiving container |
| 06/03/2004 | DE10253463A1 Verfahren und Vorrichtung zur Kühlung von Blaslanzen Method and apparatus for cooling blowing lances |
| 06/02/2004 | EP1117845B1 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product |
| 06/02/2004 | CN1501984A Ladle refining of steel |
| 06/02/2004 | CN1500889A Cored wire desulfurized by calcium carbide molten iron and desulfurizing method |
| 06/02/2004 | CN1152145C Moisture proof active lime composite desulfurizing agent |
| 06/02/2004 | CN1151901C Alkaline granule steel ladle covering agent |
| 05/27/2004 | US20040100004 Concurrent pressing porous and nonporous bodies; controlling gas flow; injecting gas into metal melt |
| 05/27/2004 | US20040099351 Cooling while controlling the temperature distribution in melts to effect nucleation in solidifying liquids; alloying |
| 05/27/2004 | US20040099091 Metallurgy; comprises melting device, electric arc furnace, and air refining process; decarbonization; for reversible treatment of unreduced coverter slag |
| 05/26/2004 | EP1422301A1 Maraging steel and method of producing the same |
| 05/26/2004 | CN1498976A Desulfurizer based on nano composite calcium carbide and calcium oxide for steel |
| 05/26/2004 | CN1498975A Cored aluminium wire |
| 05/26/2004 | CN1151300C Rare earth metal filament core-spun wire |
| 05/26/2004 | CN1151287C Deeply desulfurizing slag for steel ladle as refining furnace |
| 05/26/2004 | CN1151286C Technology for producing ultralow-sulfur steel with steel ladle as refining furnace |
| 05/26/2004 | CN1151285C Molten iron desulfurizing process using magnesium grains outside furnace |
| 05/26/2004 | CN1151284C Composite deoxidizing alloy for smelting steel |
| 05/26/2004 | CN1151283C Compound Si-Ca-Mg deoxidant producing process |
| 05/26/2004 | CN1151282C Aluminium-free deoxidant for steel smelting |
| 05/25/2004 | US6740138 Melting iron material and carbon material to produce a high-carbon molten iron whose carbon content is not lower than 1% |
| 05/21/2004 | WO2004042089A1 Method for the production of corrosion-resistant steels and cast irons by alloying with a polymerized, fullerene-like carbon |
| 05/21/2004 | WO2004042088A1 Reclaimed magnesium desulfurization agent |
| 05/20/2004 | US20040093983 Maraging steel and method of producing the same |
| 05/19/2004 | CN1150340C Compound Si-Ca-Ba-Mg deoxidant producing process |
| 05/19/2004 | CN1150339C Compound Si-Ca-Ba deoxidant producing process |
| 05/19/2004 | CN1150338C Al-Mg alloy for deoxidizing and desulfurizing in smelting steel |
| 05/12/2004 | EP1417355A1 Device for treatment of iron alloys in a vessel |
| 05/12/2004 | CN1496292A Refractory plug or brick for injecting gas into molten metal |
| 05/12/2004 | CN1149297C Steel Plate to be precipitating Tin+Zrn for welded structures, method for mfg. same and welding fabric using same |
| 05/11/2004 | US6733565 Metal powders provide rapid dissolution of the alloy and improved heat transfer |
| 05/11/2004 | US6732890 Methods employing permanent magnets having reach-out magnetic fields for electromagnetically pumping, braking, and metering molten metals feeding into metal casting machines |
| 05/11/2004 | US6732547 Method for the treating stainless steel refining slag |
| 05/06/2004 | US20040083851 Reclaimed magnesium desulfurization agent |
| 04/29/2004 | US20040079199 High carbon steels; tapping from furnace into ladle; deoxidation melt; forming carbon monoxide |
| 04/28/2004 | EP1105748A4 Measuring the thickness of materials |
| 04/28/2004 | CN1147599C Smelt-reduction rpocess for preparing Al-Si-Fe alloy fro Al dregs |
| 04/27/2004 | US6726782 Ultra-low carbon steel sheet |
| 04/21/2004 | CN1146669C Premelt molten steel cleaning agent |
| 04/15/2004 | WO2004031423A2 Method for making an alloy and alloy |
| 04/14/2004 | EP1408125A1 Low carbon steel sheet, low carbon steel cast piece and method for production thereof |
| 04/07/2004 | EP1332232B1 Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel |
| 04/07/2004 | CN1144892C Steel plate with Tin+Cus precipitate used for welded structure, producing method thereof and produced welded structure with the same |
| 04/07/2004 | CN1144883C Method for transmitting powder and gas to liquid |
| 03/31/2004 | EP1403387A1 METHOD FOR DECARBONIZATION REFINING OF CHROMIUM−CONTAINING MOLTEN STEEL |
| 03/31/2004 | CN1485461A Passivation particle magnesium and method for preparing the same |
| 03/31/2004 | CN1485297A Pouring materialfor steel ladle with low density and low heat conduction |
| 03/24/2004 | CN1483839A Aluminium-manganese-calcium-iron alloy for deoxidation in steelmaking |
| 03/24/2004 | CN1143001C Agglomeration method of steel slag |
| 03/17/2004 | CN1482261A Method of rare-earth oxide treating steel fluid |
| 03/17/2004 | CN1481953A Tombarthite core-spun yarn for continuous casting |
| 03/17/2004 | CN1142298C Deoxidizing process for adding MaAlFe alloy to conticast carbon steel as welding electrodes |
| 03/17/2004 | CN1142297C Composite molten steel refining additive |
| 03/11/2004 | WO2004020679A1 Device for injecting a treatment gas into a molten metal |
| 03/11/2004 | WO2004020677A1 Method of manufacturing low phosphorous hot metal |
| 03/11/2004 | WO2004020676A1 Method for refining and modifying iron-carbon melt |