| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 05/28/2003 | CN2552939Y External molten iron desulfurzation jet blower for blast furnace |
| 05/28/2003 | CN1420938A Vacuum treatment of cast metal with simultaneous helium-injection stirring |
| 05/28/2003 | CN1420197A Steel for mechanical structure |
| 05/28/2003 | CN1420195A Method for vacuum induction smelting high-chrome super-purity ferrite stainless steel |
| 05/22/2003 | WO2003042420A1 Steel plate having superior toughness in weld heat-affected zone and method for manufacturing the same, welding fabric using the same |
| 05/21/2003 | EP1312689A1 Steel for machine structural use |
| 05/21/2003 | CN1109117C Speical nodulizer for nodular cast iron and its production process |
| 05/20/2003 | US6565800 Apparatus for injecting solid particulate material into a vessel |
| 05/20/2003 | US6565622 Blowing mixture of carbon and oxygen into bath; forming carbon monoxide |
| 05/15/2003 | US20030089732 Method and apparatus for the controlled supply of feedstock to a feedstock processing facility operating at high pressure |
| 05/14/2003 | EP1310573A2 Process to produce a metal melt on the basis of a dynamic process model, including a correction model |
| 05/14/2003 | CN2550094Y Automatic inoculation device with stream |
| 05/14/2003 | CN1417353A Production process of premelt calciun aluminate slag |
| 05/08/2003 | US20030084965 Steel for machine structural use and method of producing same |
| 05/07/2003 | EP1307597A2 Desulphurization reagent control method and system |
| 05/07/2003 | CN1415766A Composite ball rolls of manganese and its preparation method |
| 05/07/2003 | CN1415765A Desulfurizer and its producing technique |
| 05/07/2003 | CN1415764A Method for deoxidizing and purifying molten steel |
| 05/06/2003 | US6558614 Method for producing a metal melt and corresponding multifunction lance |
| 05/01/2003 | US20030080480 Apparatus for treating molten metal having a sealed treatment zone |
| 04/30/2003 | CN2547737Y Molten iron desiliconizing and decarbonizing apparatus |
| 04/30/2003 | CN1415021A Apparatus and process to extract heat and solidify molten material particles |
| 04/30/2003 | CN1414118A Production method of small square billet continuous casting bearing steel |
| 04/30/2003 | CN1413949A Fusing of natural tabular spar and its using method |
| 04/23/2003 | EP1304391A2 Method for producing a metal melt and corresponding multfunction lance |
| 04/23/2003 | CN1412326A Composite diffusion deoxidizer and its application method |
| 04/22/2003 | US6551550 Gas blowing plug and manufacturing method therefor |
| 04/17/2003 | WO2003031374A1 Refractory for furnace and furnace and method for surface treating furnace wall |
| 04/16/2003 | EP1302553A2 Method and device for vacuum treatment of high-carbon containing iron melts |
| 04/16/2003 | EP1302552A2 Cooling a liquid steel by means of blowing nitrogen gas into the bath |
| 04/16/2003 | CN1410581A Steel for mechanical structure and mfg. method thereof |
| 04/16/2003 | CN1410579A Production method of high strength mixed rare earth metal filament core-spun wire |
| 04/16/2003 | CN1410578A Production technology of high silicon manganese-silicon alloy |
| 04/16/2003 | CN1410577A Rare earth metal filament core-spun wire |
| 04/16/2003 | CN1410559A Method of producing super low carbon steel using vacuum degassing |
| 04/16/2003 | CN1410558A Vacuum treatment method of molten steel dephosphorus |
| 04/16/2003 | CN1410557A Aluminium slagging deoxygen ball |
| 04/16/2003 | CN1410556A Aluminium slag ball and its preparation method |
| 04/16/2003 | CN1410555A Production method of microaluminium micro carborundum iron |
| 04/16/2003 | CN1410554A Oxidizing agent used for producing microaluminium micro carbonrundum iron |
| 04/15/2003 | US6547849 Ladle refining of steel |
| 04/15/2003 | CA2254473C Coherent jet injector lance |
| 04/11/2003 | CA2406394A1 A method of operating a steelmaking furnace during a steelmaking process |
| 04/10/2003 | WO2003029498A1 Method for pretreatment of molten iron and method for refining |
| 04/10/2003 | WO2003029497A1 Method for dephsophorization of molten irona |
| 04/10/2003 | WO2003028923A1 Cast iron member manufacturing method |
| 04/10/2003 | WO2002077298A3 Vacuum chamber, notably for steel decarburisation |
| 04/09/2003 | CN1408886A Aluminum-calcium slag and its preparing method |
| 04/08/2003 | US6544471 Method and apparatus for producing high chromium content steels and/or ferroalloys in an electric arc converter |
| 04/03/2003 | WO2003027335A1 Method for refining molten iron containing chromium |
| 04/03/2003 | US20030061908 Process for producing high-nitrogen ultralow -carbon steel |
| 04/02/2003 | EP1297191A1 Vacuum installation for a steel treatment vessel and its operation |
| 04/02/2003 | CN2542679Y Composite deoxidant block for pure ferro-aluminium |
| 04/01/2003 | US6540012 Electroslag remelting plant with a mould and a hood |
| 03/27/2003 | WO2003025241A1 Hot-rolled steel sheet with good ultra low temperature toughness and the method of the same |
| 03/26/2003 | EP1294954A1 Flux-cored wire for introducing additives into a molten metal bath |
| 03/26/2003 | CN1405333A Silicon-manganese-calcium alloy and its production method |
| 03/26/2003 | CN1405332A Molten steel scavenger |
| 03/26/2003 | CN1405331A Aluminium-calcium composite desulfurizing agent, and producing method and using method thereof |
| 03/25/2003 | CA2234451C Nozzle assembly having inert gas distributor |
| 03/20/2003 | WO2003023073A1 Oxygen blowing lance for the vacuum refining apparatus |
| 03/20/2003 | WO2002075005A3 Method for the use of electric steel plant slag for self-reducing agglomerates |
| 03/19/2003 | EP1292714A1 Immersion pipe cleaning device for vacuum degassing vessels |
| 03/19/2003 | CN1403597A Vacuum deaeration refining process and equipment |
| 03/19/2003 | CN1403412A Refractory material for slot-type ventilating brick of refining steel ladle and its prepn |
| 03/13/2003 | CA2403081A1 Oxygen-blowing lance in vacuum refining apparatus |
| 03/12/2003 | EP1291443A2 Pressurized converter steelmaking method |
| 03/12/2003 | EP1291442A1 Method and apparatus for producing desulfurizing agent for hot-metal |
| 03/06/2003 | WO2003002771B1 Low carbon steel sheet, low carbon steel cast piece and method for production thereof |
| 03/05/2003 | EP1287171A1 Hardened fe-ni alloy for making integrated circuit grids and method for making same |
| 03/05/2003 | EP1287170A1 Apparatus for injecting solid particulate material into a vessel |
| 03/05/2003 | EP1287169A1 Method and apparatus for delivering metallurgically improved molten metal |
| 03/05/2003 | EP1190104B1 Method of decarburisation and dephosphorisation of a molten metal |
| 03/05/2003 | CN1401009A Method for treating slags or slag mixtures on and iron bath |
| 03/05/2003 | CN1400317A Method for treating and controlling acid-soluble aluminium in steel outside molten steel furnace |
| 02/27/2003 | WO2003016579A1 Device for treatment of iron alloys in a vessel |
| 02/26/2003 | EP1192401B8 Method and system for the treatment of liquid metals |
| 02/26/2003 | CN1398991A High-aluminium alloy and its prepn process |
| 02/19/2003 | EP0868525B1 Process for preparing intermediates for the synthesis of antifungal agents |
| 02/19/2003 | CN1398302A Steel plate to be precipitating Tin+Zrn for welded structures, method for mfg. same and welding fabric using same |
| 02/19/2003 | CN1397652A Arburetant integrating metal with arbon and its preparing process |
| 02/12/2003 | CN1396960A Method for grain refining of steel, grain refining alloy for steel and method for producing grain refining alloy |
| 02/12/2003 | CN1396288A NiCuSiFe alloy |
| 02/12/2003 | CN1396273A High-performance refining agent |
| 02/12/2003 | CN1396024A Fire-resistant drainage outlet |
| 02/11/2003 | US6516870 Employing flux having higher melting temperature in pour box area of tundish and flux with lower melting temperature in areas of tundish remote from pour box |
| 02/06/2003 | US20030024349 Melting iron material and carbon material to produce a high-carbon molten iron whose carbon content is not lower than 1% |
| 02/05/2003 | EP1281776A1 Composition for hindering the formation of iron oxides in steel-melting slag and process for obtaining a slag with a low level of iron oxides |
| 02/05/2003 | CN1395624A Steel plate to be precipitating Tin+CuS for welded structures, method for mfg the same, welding fabric using the same |
| 02/05/2003 | CN1394968A Compound deoxidant for solid steel |
| 02/05/2003 | CN1394967A Pure aluminium iron compound deoxidant and its production process |
| 02/05/2003 | CN1394966A Gas protection process for feeding alloy wire into molten stel and its equipment |
| 02/04/2003 | US6514310 Process for injection of a gas with the aid of a nozzle |
| 01/30/2003 | WO2003008651A1 Steel making material recycling system |
| 01/30/2003 | CA2459112A1 Steel making material recycling system |
| 01/29/2003 | EP1194255B1 Treatment for improving the castability of aluminium killed continuously cast steel |
| 01/29/2003 | EP1088112B1 Water-cooled vessel for vacuum processing of liquid steel |
| 01/29/2003 | CN1393569A Method for refining metal by different oxygen refining sequence |
| 01/28/2003 | US6511553 Steel for steel excellent in workability and method of deoxidizing same |
| 01/23/2003 | US20030015063 Steel making material recycling system |