| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 03/07/2006 | US7010248 Toner recycling method and toner recycling system |
| 03/02/2006 | WO2006021123A2 Case-hardened steel and method for production thereof by fusion treatment |
| 03/02/2006 | WO2004104232A8 Method for producing foamed slag on high-chromium melts in an electric furnace |
| 03/01/2006 | EP1630238A1 Method of recovering metallic elements from slag containing metaloxides |
| 03/01/2006 | EP1629126A1 Method for producing foamed slag on high-chromium melts in an electric furnace |
| 03/01/2006 | EP1511871B1 Refining ferroalloys |
| 03/01/2006 | CN1740349A Compound coate with with powder core and its making process |
| 03/01/2006 | CN1740348A Coated wire with flexible coating |
| 03/01/2006 | CN1740347A Integrated molten iron top treating unit for desulfuring and scumming |
| 03/01/2006 | CN1243837C Water-cooled vessel for vacuum processing of liquid steel |
| 03/01/2006 | CN1243836C Apparatus for injecting gas into vessel and metallurgical vessel utilizing the same apparatus |
| 02/28/2006 | US7004992 Reducing chromium oxide with silicon to obtain a molten metal, discharging slag produced and adding a basic flux to refine |
| 02/23/2006 | WO2005069977A3 Method for producing low carbon steel |
| 02/23/2006 | US20060038328 Method and apparatus for magnetically stirring a thixotropic metal slurry |
| 02/23/2006 | US20060037673 Chromium-containing metal and manufacturing method thereof |
| 02/22/2006 | EP1627085A1 Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace |
| 02/22/2006 | CN2760045Y Combined air blowing and stirring purifier with rotating magnetic field for metal melt |
| 02/22/2006 | CN2760044Y Travelling wave magnetic field purifier for metal melt |
| 02/15/2006 | EP1625904A1 Device for heating or keeping warm liquids |
| 02/15/2006 | EP1625239A1 Improvements in and relating to molten metal processing |
| 02/09/2006 | WO2006013239A2 Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 02/09/2006 | CA2573137A1 Molten metal pump |
| 02/08/2006 | CN2756640Y Inversed T-shape iron melt pretreating spray gun |
| 02/08/2006 | CN1730707A Ferrum base rare earth high-chromium steel capable of welding and of heat and abrasive endurance |
| 02/08/2006 | CN1730705A Microalloyed reinforcing steel bar containing chromium and niobium, and its production process |
| 02/08/2006 | CN1730702A Vanadium-silicon-barium-ferrum composite alloy used as webbite and its production method |
| 02/08/2006 | CN1730701A Aluminium-magnesium-iron alloy used for steel melt refining agent |
| 02/08/2006 | CN1730675A Insert tube of vacuum circulating degasification apparatus |
| 02/08/2006 | CN1730674A Method for moten iron desulfurization using slag of desulfurized molten iron |
| 02/02/2006 | US20060021467 Reclaimed magnesium desulfurization agent |
| 02/01/2006 | EP1372891B1 Apparatus for transferring liquid metals from a collection container to a receiving container |
| 02/01/2006 | CN2755102Y Top-blown oxygen gun sealed channel |
| 02/01/2006 | CN1727509A Austenitic nonmagnetic steel, and preparation method |
| 02/01/2006 | CN1727500A Composite alloy in use for deoxidized alloying in steel making, and preparation method |
| 01/26/2006 | WO2006009142A1 Steel for steel pipe |
| 01/26/2006 | WO2006008450A2 Cored wire composition for increasing titanium content of steel |
| 01/26/2006 | US20060017203 Refining apparatus for scrap silicon using an electron beam |
| 01/25/2006 | CN1238533C High alumina slag ball and preparing method thereof |
| 01/25/2006 | CN1238532C Low-fluorine composite high activity calcium oxide desulfurizing agent and its preparing process |
| 01/25/2006 | CN1238531C Outside-furnace refining agent and its manufacturing method |
| 01/25/2006 | CN1238530C Method for de-silicon pre-treating of blast furnace melted iron |
| 01/25/2006 | CN1238302C Pouring material for steel ladle with low density and low heat conduction |
| 01/25/2006 | CN1238134C Tundish covering agent for pure steel, and its making method |
| 01/24/2006 | US6989040 A mixture of magnesium scrap, a gas-producing lubricants and calcium oxide, for removing sulfur from molten iron, deagglomeration, uniformly dispersing the desulfurization agents |
| 01/18/2006 | CN2752271Y Metal melt bidirectional rotary magnetic field stirring purifier |
| 01/18/2006 | CN1721557A Method for adding bearing steel nano titanium-removing agent in molten steel |
| 01/18/2006 | CN1721556A Method for dispersing bearing steel nano titanium-removing agent in molten steel |
| 01/11/2006 | CN1718826A Modified steel and its production method |
| 01/11/2006 | CN1718817A Smelting production method of extra pure high carbon chromium bearing steel |
| 01/11/2006 | CN1718793A Fusing agent used under high temperature fused state |
| 01/11/2006 | CN1718765A Composite refining slag for converter molten steel refining and its adding method |
| 01/11/2006 | CN1718764A Aluminium manganese deoxygenation briquette |
| 01/11/2006 | CN1718763A Aluminium silicon manganese dioxidation briquette |
| 01/11/2006 | CN1718762A Blast furnace and converter for molten iron hearth large scale desulfurization or three eliminating simultaneously |
| 01/11/2006 | CN1718761A Core enveloped wire guard wire guiding mechanism |
| 01/11/2006 | CN1718760A Silicon barium calcium manganese magnesium iron alloy and its preparation method |
| 01/11/2006 | CN1718759A Improved circulation type molten steel vacuum refining method and device |
| 01/11/2006 | CN1718757A Metal mixer for proceeding molten iron desulfuring using magnesium in metal mixer |
| 01/11/2006 | CN1718756A Method of molten iron desulfuring using magnesium in metal mixer and equipment for realizing said method |
| 01/11/2006 | CN1236092C Steel plate having superior toughness in weld heat-affected zone and method for manufacturing the same, welding fabric using the same |
| 01/05/2006 | WO2006001727A1 Method for out-of-furnace iron-carbon steel alloying in a ladle |
| 01/05/2006 | WO2006000714A2 Cored wire |
| 01/05/2006 | WO2005098054A8 Method in connection with steel production |
| 01/05/2006 | US20060001201 Metallurgical lance |
| 01/05/2006 | US20060001200 Agitator and melting furnace with agitator |
| 01/05/2006 | US20060000309 Supply recycling system and valuable-metal recovering system |
| 01/04/2006 | EP1612498A1 Agitator and melting furnace with agitator |
| 01/04/2006 | CN1715819A Agitator and melting furnace with agitator |
| 01/04/2006 | CN1234880C Composite desulfurizing agent for iron and steel and its preparing process |
| 01/04/2006 | CN1234879C Method of rare-earth oxide treating melt steel |
| 01/04/2006 | CN1234878C Apparatus for injecting solid particulate material into vessel |
| 12/29/2005 | WO2005123896A2 Method and apparatus for carrying out a metallurgical process |
| 12/29/2005 | CA2570299A1 Method and apparatus for carrying out a metallurgical process |
| 12/28/2005 | CN2748472Y Feed roll screw-down device for wire-feeding machine |
| 12/28/2005 | CN1713962A Covering means for a top slag, method for the production thereof and use of the covering means |
| 12/28/2005 | CN1233852C SiCaMn alloy |
| 12/22/2005 | DE102004025779A1 Improving slag reaction with molten metal in indirectly-heated furnaces, e.g. induction furnaces, adds slagging materials in solid form before melting of charge is complete |
| 12/15/2005 | WO2005118890A2 Recovery of steel from contaminated scrap |
| 12/15/2005 | US20050274773 Cored wire |
| 12/15/2005 | US20050274224 techniques for re-introducing iron-rich mill scale back into the basic iron and/or steel process stream whereby valuable economic and environmental benefits may be obtained |
| 12/14/2005 | CN1708591A Method and device for cooling blowing lances |
| 12/14/2005 | CN1231297C Multi-condensed jet-flow spray gun |
| 12/07/2005 | EP1602423A1 Coupling for attaching a metallurgical vessel to treatment gas pipes |
| 12/07/2005 | EP1601802A2 Elevated discharge gas lift bubble pump and furnace for use therewith |
| 12/07/2005 | CN1704484A Alloying control method in process of RH refinement |
| 12/07/2005 | CN1230562C Desulphurizing method for smelting iron alloy |
| 12/01/2005 | WO2005113840A1 Method for reducing cr in metallurgical slags containing cr |
| 12/01/2005 | CA2563338A1 Method for reducing cr from cr-containing metallurgical slags |
| 11/30/2005 | EP1599610A2 Gas bubbling element and corresponding gas bubbling system |
| 11/30/2005 | CN1229506C Melted iron dephosphorization agent using vessel slag as raw material |
| 11/24/2005 | US20050257644 Refining agent and refining method |
| 11/23/2005 | CN1701126A Duplex stainless steel and manufacturing method thereof |
| 11/23/2005 | CN1228457C Ti-Al-Fe alloy suitable for alloying treatment of refined steel |
| 11/23/2005 | CN1228456C High-calcium refining softening agent for oxygen spray powder iron & steel |
| 11/22/2005 | US6966955 Mixture containing titanium, zirconium nitrides precipitates; heating, controlling temperature |
| 11/17/2005 | US20050253315 Device for injecting a treatment gas into a molten metal |
| 11/16/2005 | CN1696316A Silicon-calcium-barium ferroalloy in use for steel making |
| 11/16/2005 | CN1227377C Composite spray gun for vacuum air-removing tank and its using method |
| 11/16/2005 | CN1227376C Production process of composite calcium carbide deoxygenating and purifying agent |
| 11/16/2005 | CN1227375C Production process for Si-Ca-Mg agent for purifying molten steel |