| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 12/15/2004 | CN1554791A Method for increasing quenching degree and heat processing performance of gear steel |
| 12/15/2004 | CN1554778A Low-titanium calcium aluminate and its preparing method |
| 12/15/2004 | CN1554777A Homogeneous slag blocking ball and its producing method |
| 12/15/2004 | CN1180113C Steel for mechanical structure and mfg. and method thereof |
| 12/15/2004 | CN1180111C Production method of high strength mixed rare earth metal filament core-spun wire |
| 12/14/2004 | US6830723 Apparatus for treating molten metal having a sealed treatment zone |
| 12/14/2004 | US6830606 Method for decarbonization refining of chromium-containing molten steel |
| 12/09/2004 | US20040245682 Method for refining molten iron containing chromium |
| 12/09/2004 | US20040244881 Cast iron member manufacturing method |
| 12/09/2004 | US20040244532 Ladle refinement of steel to be directly cast into thin steel strip in a continuous strip caster |
| 12/09/2004 | DE10323507A1 Verfahren zur Rückgewinnung von metallischen Elementen, insbesondere metallischem Chrom, aus metalloxidhaltigen Schlacken im Elektrolichtbogenofen Process for the recovery of metallic elements, particularly metallic chromium, from slags containing metal oxide in the electrical arc furnace |
| 12/09/2004 | DE10323505A1 Verfahren zur Erzeugung einer Schaumschlacke auf hochchromhaltigen Schmelzen in einem Elektroofen A method for generating a foamed slag on high chromium melts in an electric furnace |
| 12/08/2004 | CN2661699Y Continuous desulphurization equipment for blast furnace liquid iron |
| 12/08/2004 | CN1553966A Hot-rolled steel sheet with good ultra low temperature toughness and the method of producing the same |
| 12/08/2004 | CN1552919A Converter oxide and nitrogen top-blown dephosphorizing method |
| 12/08/2004 | CN1179055C Slag modifier for refining molten steel |
| 12/02/2004 | WO2004104233A1 Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace |
| 12/02/2004 | WO2004104232A1 Method for producing foamed slag on high-chromium melts in an electric furnace |
| 12/01/2004 | EP1481100A1 Method for the production of stainless steel, particularly high-grade steel containing chrome or chrome nickel |
| 12/01/2004 | EP1444373A4 Steel plate having superior toughness in weld heat-affected zone and method for manufacturing the same, welding fabric using the same |
| 11/25/2004 | WO2004101830A1 Improvements in and relating to molten metal processing |
| 11/25/2004 | US20040231458 metals and alloys exhibiting long-range ordering and unique electronic character; x-ray fluorescence spectrometry; silicon, aluminum, copper, nickel, chromium, manganese, iron, cobalt, nickel, copper, zinc, or their alloys |
| 11/25/2004 | CA2526094A1 Improvements in and relating to molten metal processing |
| 11/24/2004 | EP1214162B1 Gas purge plug for metallurgical melt containers |
| 11/24/2004 | CN1548562A REAlMnVFe alloy and its prepn |
| 11/24/2004 | CN1548561A RESiMgCaFe alloy and its prepn |
| 11/24/2004 | CN1548560A ReSiBaCaTiFe alloy and its prepn |
| 11/24/2004 | CN1548559A SiBaCaBMgFe alloy and its prepn |
| 11/24/2004 | CN1177065C Flux for electric furnace steelmaking and its preparation and use method |
| 11/24/2004 | CN1177064C Production method of microaluminium micro carborundum iron |
| 11/17/2004 | EP1476584A1 Method for deep decarburisation of steel melts |
| 11/17/2004 | EP1379706B1 Tool steel having high toughness, method for producing parts made of said steel, and parts thus obtained |
| 11/17/2004 | CN1546691A Highly effective molten steel and iron liquid desulfurization method utilizing nanometer technology |
| 11/17/2004 | CN1176225C Method of producing super low carbon steel using vacuum degassing |
| 11/17/2004 | CN1176224C Vacuum treatment method of molten steel dephosphorization |
| 11/11/2004 | WO2004079019A3 Gas bubbling element and corresponding gas bubbling system |
| 11/10/2004 | EP1474537A1 Model-based system for determining process parameters for the ladle refinement of steel |
| 11/10/2004 | EP1254275A4 STEEL PLATE TO BE PRECIPITATING TiN + ZrN FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME AND WELDING FABRIC USING THE SAME |
| 11/10/2004 | CN1544661A Refining agent for making steel |
| 11/09/2004 | CA2306887C Simple ladle refining method |
| 11/04/2004 | WO2003089676A8 Iterative cycle process for carbon supersaturation of molten metal and solid metals obtained thereby |
| 11/03/2004 | EP1339889A4 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME |
| 11/03/2004 | CN2652945Y Long life single spray mouth deactivating magnesium desulfurizing spray gun |
| 11/03/2004 | CN2652941Y Length metering complete wire measuring and control device of furnace external fine refinery wire feeder |
| 11/02/2004 | CA2121215C Injection equipment |
| 10/27/2004 | CN1540893A Data structure providing storage and bandwith savings for hardware RTCP statistics collection appliances |
| 10/27/2004 | CN1540000A Pre fusion typed refining purifying agent and prducing technique |
| 10/27/2004 | CN1539999A Oxygen core lance having high temperature coating |
| 10/27/2004 | CN1173046C Aluminium slagging deoxygen ball |
| 10/26/2004 | US6808550 Deoxidizing molten steel within the ladle(having predefined % of sulfur); desulfurizing the molten steel within the ladle after deoxidation, followed by reoxidatin, determining melting point of inclusions |
| 10/21/2004 | US20040206425 Fabrication of a high-strength steel article with inclusion control during melting |
| 10/20/2004 | EP1469087A1 Method for reducing the amount of impurities in molten steel |
| 10/20/2004 | CN1172109C System supplying adjacent turbulent gas spray and uniform gas spray |
| 10/13/2004 | EP1006208B1 Steel for thin sheet excellent in workability and method for deoxidation thereof |
| 10/07/2004 | US20040195739 Device for treatment of iron alloys in vessel |
| 10/07/2004 | US20040194578 Briquette for raw material for iron manufacture and briquette for introduction into slag generating apparatus |
| 10/06/2004 | CN1169992C Steel for mechanical structure |
| 10/06/2004 | CN1169986C Al-Si-Mn alloy and its preparing process |
| 09/30/2004 | WO2004083464A1 Method for a direct steel alloying |
| 09/29/2004 | CN1532294A Heating high efficiency sweetening agent |
| 09/28/2004 | US6797231 In percent by mass, carbon: 0.1-0.6%, silicon: 0.01-2.0%, manganese: 0.2-2.0%, sulfur: 0.005-0.2%, aluminum: not more than 0.009%, titanium: 0.001-0.04%, calcium: 0.0001-0.01%, oxygen: 0.001-0.01%, nitrogen: less than 0.02%; machinability |
| 09/23/2004 | WO2004081239A1 Methods employing permanent magnets having reach-out magnetic fields for electromagnetically pumping, breaking, and metering molten metal casting machines |
| 09/23/2004 | US20040182203 Method for decarbonization refining of chromium-containing molten steel |
| 09/22/2004 | EP1117845B8 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product |
| 09/22/2004 | CN2642790Y Novel aluminium iron compound deoxidizer block |
| 09/22/2004 | CN1167930C Equipment for jetting granular material into container |
| 09/22/2004 | CN1167814C Rare earth composite deoxidation material and its technological process |
| 09/21/2004 | US6793708 Containing source of elemental carbon, calcium carbide and oxide; optimizing foaming at all stages; batch to batch consistency |
| 09/16/2004 | WO2004079019A2 Gas bubbling element and corresponding gas bubbling system |
| 09/16/2004 | WO2004078385A1 Apparatus for treating molten metal having a sealed treatment zone |
| 09/15/2004 | EP1457574A1 Method for pretreatment of molten iron and method for refining |
| 09/15/2004 | CN1529762A Low Carbon steel sheet, Low carbon steel cast piece and method for production thereof |
| 09/15/2004 | CN1528920A Steel-core alminium-system compound deoxidant and production process thereof |
| 09/15/2004 | CN1528919A Method for desulfurizing melton iron using desulfurizing agent of containing-aluminium calcium-oxide group |
| 09/14/2004 | US6790254 Method for controlling and adjusting the concentration of a gas component in a melt and a device for carrying out the same |
| 09/09/2004 | US20040173055 Method for refining stainless steel with high purity |
| 09/09/2004 | DE10202417B9 Verfahren zur Herstellung eines Beschickungsmaterials zur Verwendung in metallurgischen Verfahren A method for producing a feed material for use in metallurgical processes |
| 09/08/2004 | EP1454996A2 Briquette for raw material for iron manufacture and briquette for introduction into slag generating apparatus |
| 09/08/2004 | CN2639313Y Semisteel smelting splash guard |
| 09/08/2004 | CN1526837A Block mass for iron-making raw material and block mass thrown in slag generating apparatus |
| 09/08/2004 | CN1526835A Prepn process of molten steel refining slag |
| 09/08/2004 | CN1526834A TiALFe alloy suitable for alloying treatment of refined steel |
| 09/02/2004 | WO2004074523A2 Elevated discharge gas lift bubble pump and furnace for use therewith |
| 09/02/2004 | US20040168749 Low carbon steel sheet, low carbon steel cast piece and method for production thereof |
| 09/01/2004 | CN1524969A Melted iron dephosphorization agent using vessel slag as raw material |
| 09/01/2004 | CN1524968A Method for refining stainless steel with high purity |
| 08/31/2004 | US6783728 Free-cutting steel for machine structural use having good machinability in cutting by cemented carbide tool |
| 08/31/2004 | CA2300992C Steel wire rod and method of manufacturing steel for the same |
| 08/26/2004 | US20040163741 Method of manufacture of ultra-low carbon steel |
| 08/26/2004 | DE10209472B4 Verfahren zum Erzeugen von nichtrostendem Stahl, insbesondere von chrom- oder chromnickelhaltigem Edelstahl A method for producing stainless steel, particularly of chrome or stainless steel chromnickelhaltigem |
| 08/25/2004 | CN1524129A Vacuum chamber notably for steel decarburisation |
| 08/25/2004 | CN1523122A Carburant for steel-making and producing process and method of using thereof |
| 08/25/2004 | CN1163915C Soft magnet-nickel alloy |
| 08/24/2004 | US6780258 Austenitic stainless steel less susceptible to cracking during forming and a manufacturing method thereof |
| 08/18/2004 | CN1522307A Decarburization refining method of chromium containing molten steel |
| 08/18/2004 | CN1521279A High alumina slag ball and preparing method thereof |
| 08/12/2004 | WO2004067785A1 Method for doping melts using metal capsules |
| 08/12/2004 | US20040154708 Drawability,stretchability, workability; contorlling concentration; mixing with mixed oxide ; solidification ; hot rolling , annealing, cold rolling |
| 08/12/2004 | US20040154437 Method of degassing molten steel |
| 08/11/2004 | EP1445337A1 Method for dephsophorization of molten irona |