| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 04/10/2002 | CN1082559C Method for mfg. low-aoluminium ferrosilicon contg. strontium |
| 04/09/2002 | US6368550 Variably insertable combined lance with displaceable burner and blower lance bodies |
| 04/09/2002 | US6368549 Metallurgical vessel |
| 04/09/2002 | US6368548 Direct smelting process and apparatus |
| 04/04/2002 | US20020038926 Desulphurization reagent control method and system |
| 04/03/2002 | EP1192401A1 Method and system for the treatment of liquid metals |
| 04/03/2002 | CN1342777A Deoxidizing process for adding MaAlFe alloy to conticast carbon steel as welding electrodes |
| 04/03/2002 | CN1342776A Carbonizing technology for smelting steel and special carburant |
| 03/28/2002 | US20020035892 Process for injection of a gas with the aid of a nozzle |
| 03/27/2002 | EP1190104A1 Method of decarburisation and dephosphorisation of a molten metal |
| 03/27/2002 | CN2483396Y Desulfurization treatment equipment |
| 03/27/2002 | CN1341756A Production process of silicon calcium barium magnesium liquid steel cleaning agent and its production equipment |
| 03/27/2002 | CN1341755A Production process of silicon calcium barium liquid steel cleaning agent and its equipment |
| 03/21/2002 | WO2002022892A1 Blowing lance nozzle |
| 03/21/2002 | WO2002022891A1 Refining agent and refining method |
| 03/21/2002 | WO2001046481A3 Thermodestruction and inertisation of halogenated wasted in a metallurgical reactor |
| 03/20/2002 | EP1188846A1 Machine structure steel superior in chip disposability and mechanical properties |
| 03/19/2002 | US6358467 Universal coupling |
| 03/19/2002 | US6358299 VOD refining method for fast-cut stainless steel containing sulphur |
| 03/14/2002 | WO2002020853A1 Process to provide concurrently both energy and heat insulation for the liquid metal bath |
| 03/14/2002 | WO2001073138A3 Steelmaking |
| 03/14/2002 | US20020030070 Method and apparatus for treatment of metal cascades in flame and gas |
| 03/13/2002 | EP1186676A2 Method and installation for the treatment, especially the desulfurisation and/or dephosphorisation, of metal melts, in particular of pig iron |
| 03/13/2002 | EP0879896B1 Apparatus and process for refining molten steel in the production of ultra-low carbon steel |
| 03/13/2002 | CN1080866C Combined installation of a metal production unit and a unit for separation air gas |
| 03/12/2002 | US6355205 Multi-function lance for a vacuum degassing chamber and a method of using the same |
| 03/12/2002 | CA2233830C Tool for glass molding operations and method of manufacture thereof |
| 03/06/2002 | EP1183398A1 Discharge channel for melting furnaces and pouring ladles |
| 03/06/2002 | EP1183397A1 Method and device for tapping molten metal from metallurgical vessels |
| 03/06/2002 | CN2480377Y Rotary pneumatic cover closing device |
| 03/06/2002 | CN1338525A Deeply desulfurizing slag for steel ladle as refining furnace |
| 03/06/2002 | CN1338524A Technology for producing ultralow-sulfur steel with steel ladle as refining furnace |
| 03/06/2002 | CN1080317C Pressure converter steel making method |
| 03/05/2002 | US6352570 Magnesium desulfurization agent |
| 02/28/2002 | US20020025434 Cored wire for introducing additives into a molten metal bath |
| 02/26/2002 | US6350295 Method for densifying aluminum and iron briquettes and adding to steel |
| 02/26/2002 | US6349548 Apparatus and process to extract heat and to solidify molten material particles |
| 02/21/2002 | WO2002014562A2 Desulphurization reagent control method and system |
| 02/21/2002 | CA2418732A1 Desulphurization reagent control method and system |
| 02/20/2002 | CN1079444C Composite deoxidant for smelting steel and its prepn. |
| 02/20/2002 | CN1079436C Reduced pressure smelting furnace |
| 02/13/2002 | EP1179602A1 Method for injection of a gas with an injection nozzle |
| 02/13/2002 | CN2476559Y Top discharging type iron melt dusting pretreatment device |
| 02/13/2002 | CN1335413A Deoxidant body |
| 02/13/2002 | CN1335281A Sliding sprue tile for smelting high-oxygen steel and calcium treated steel |
| 02/12/2002 | US6346135 Cored wire for treating molten metal |
| 02/12/2002 | CA2133918C Method and device for producing stainless steel |
| 02/07/2002 | US20020014725 Covered container containing solid; ionized air flow |
| 02/07/2002 | CA2353714A1 Process for injection of a gas with the aid of a nozzle |
| 02/06/2002 | CN2475493Y Foundary laddle with special purpose for mechanical stirring continuous desulfurization |
| 02/06/2002 | CN1334355A Rare-earth metal wire |
| 01/30/2002 | CN1333381A Composite slag melting agent for steelmaking |
| 01/30/2002 | CN1078620C Ladle finer reduction foaming agent |
| 01/29/2002 | US6342088 Insulation material |
| 01/23/2002 | CN1332254A Novel molten steel purifier and its production process |
| 01/23/2002 | CN1332045A Production process of mother material for cold rolled ribbed steel bar and cold rolled ribbed steel bar |
| 01/15/2002 | CA2166097C Process for producing steel by converter |
| 01/10/2002 | WO2002002828A1 Vacuum installation for a steel treatment vessel and its operation |
| 01/10/2002 | DE10027796A1 Verfahren zum Brikettieren von Nickeloxid-Pulver, sowie Nickeloxid-Brikett A method for briquetting of nickel powder and nickel briquettes |
| 01/09/2002 | EP1169115A1 Coupling for a molten metal processing system |
| 01/09/2002 | EP1086254B1 Method for integrated desulfurizing of pig iron melt and steel melt |
| 01/09/2002 | EP1015653B1 Metallurgical vessel |
| 01/09/2002 | CN1330163A Process for preparing deoxidant used in smelting steel and its composite rare-earth deoxidant |
| 01/03/2002 | WO2002000946A1 Flux-cored wire for introducing additives into a molten metal bath |
| 01/02/2002 | CN1329675A Method for denitring molten steel during its production |
| 01/02/2002 | CN1329174A Moten steel cleansing agent and method for cleansing molten steel |
| 01/02/2002 | CN1329173A Metal and carbon material combination carburant |
| 01/01/2002 | US6334885 Method of solidifying steel-making slag and material produced by the method |
| 12/27/2001 | US20010054330 Melting raw materials containing aluminum as an inevitable impurity, with an oxide of an alloy element having a smaller standard free energy of formation than that of Al2O3 in an absolute value; and removing the resultant Al2O3 |
| 12/26/2001 | CN1328165A Smelt-reduction process for preparing Al-Si-Fe alloy from Al dregs |
| 12/20/2001 | US20010052200 Perfected melting method and device suitable to achieve the method |
| 12/19/2001 | CN1327073A Compound iron melt desulfurizing agent |
| 12/18/2001 | CA2203410C Process for vacuum refining molten steel and apparatus therefor |
| 12/13/2001 | WO2001094652A1 Method for producing briquettes from nickel-oxide powder and a nickel-oxide briquette |
| 12/13/2001 | WO2001094649A1 Immersion pipe cleaning device for vacuum degassing vessels |
| 12/13/2001 | WO2001094648A2 High-cleanliness steel and process for producing the same |
| 12/13/2001 | WO2001036891A3 Method for operation of a smelting furnace |
| 12/13/2001 | DE10028172A1 Cleaning device used for blowpipes of vacuum degassing devices comprises an outer stabilizing ring connected to teeth by interlocking, and a blowpipe scraper which travels vertically with a lifting hydraulic device |
| 12/12/2001 | EP0789083B1 Process for vacuum refining of molten steel and apparatus therefor |
| 12/12/2001 | CN2464734Y Desulfuration lifting stirring driving device for molten iron |
| 12/11/2001 | US6328784 Applying desulfurizing agent to bath surface of a molten iron alloy in container; agitating molten iron alloy in container; while the molten iron alloy is being agitated, blowing a gas containing a hydrocarbon gas onto bath surface of molten alloy |
| 12/06/2001 | WO2001092587A1 Hardened fe-ni alloy for making integrated circuit grids and method for making same |
| 12/06/2001 | WO2001092586A1 Apparatus for injecting solid particulate material into a vessel |
| 12/06/2001 | WO2001092585A2 Method and apparatus for treatment of metal cascades in flame and gas |
| 12/06/2001 | US20010048707 Process for melting sponge iron and electric-arc furnace for carrying out the process |
| 12/06/2001 | DE10126356A1 Process for melting a metal sponge comprises inserting the sponge into an electric arc furnace forming a metal sponge stream close to the electrode on the bath meniscus, and blowing oxygen into the melt |
| 12/06/2001 | CA2410456A1 Hardened fe-ni alloy for making integrated circuit grids and method for making same |
| 12/05/2001 | CN2463393Y Molten iron preprocessing unit |
| 12/04/2001 | CA2221194C Method and apparatus for continuous in-line gas treatment of molten metals |
| 11/30/2001 | CA2349060A1 Process for melting sponge iron and electric-arc furnace for carrying out the process |
| 11/28/2001 | CN1324411A Method for producing a metal melt and corresponding multifunction lance |
| 11/28/2001 | CN1323906A Al-Fe-Si intermediate alloy as steel making deoxidant and its prepn. |
| 11/22/2001 | WO2001088209A1 Method and apparatus for delivering metallurgically improved molten metal |
| 11/22/2001 | WO2001088208A2 Carrier material and desulfurization agent for desulfurizing iron |
| 11/21/2001 | EP1156126A1 Process for manufacturing an Fe-Ni alloy strip |
| 11/21/2001 | EP1068364B1 Method for alloying steels and device for carrying out the method |
| 11/21/2001 | EP0792939B1 Method of melting tinned iron scrap |
| 11/21/2001 | CN1322849A Compound Si-Ca-Mg deoxidant producing process and equipment |
| 11/21/2001 | CN1322848A Compound Si-Ca-Ba-Mg deoxidant producing process and equipment |
| 11/21/2001 | CN1322847A Compound Si-Ca-Ba deoxidant producing process and equipment |