| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 11/15/2001 | WO2001086007A1 Ladle refining device and ladle refining method using it |
| 11/15/2001 | US20010039853 Magnesium injection agent for ferrous metal |
| 11/15/2001 | DE10021544A1 Method of treating stream of molten cast iron, directs natural gas against metal surface at specified angle, under steam pressure |
| 11/14/2001 | EP1154023A1 Vacuum refining method for molten steel |
| 11/14/2001 | CN1321779A Aluminium-manganese-titanium-magnesium-iron alloy for deoxygenation and alloying of steel production |
| 11/14/2001 | CN1321778A Aluminium-magnesium-titanium-iron alloy for deoxygenation and alloying of steel production |
| 11/14/2001 | CN1074794C Method and equipment for refining by vacuum or reduced pressure method |
| 11/08/2001 | WO2001083833A1 Reheating molten steel by aluminium-iron oxide additive |
| 11/07/2001 | CN1320709A Al-Si-Mn alloy for deoxidizing molten steel and as alloy additive and its preparing process |
| 11/07/2001 | CN1074462C Method and apparatus for oxygen supply to oxygen steelmaking and ironmaking |
| 10/31/2001 | CN2457169Y Spray mixer for molten iron pretreatment |
| 10/31/2001 | CN1074048C Composite Si-B-Al-Ca-Fe deoxidant and its preparing process |
| 10/30/2001 | US6309443 Refining molten steel in ladle comprising inserting immersion snorkel into ladle and blowing oxidizing gas onto surface of molten steel within immersion snorkel through lance while molten steel is being stirred by blowing inert gas |
| 10/25/2001 | US20010033046 Apparatus for injecting gas into a vessel |
| 10/24/2001 | EP1148145A1 Supporting device for a lance used for degassing of molten metal and lance |
| 10/24/2001 | EP1147238A1 Stainless steels |
| 10/18/2001 | US20010029809 Reactive desulfurizing agent coated with heat absorbing compound, heat absorbing compound formulated to reduce rate reactive desulfurizing agent vaporizes in molten iron; for pig iron |
| 10/17/2001 | EP1146131A2 Magnesium desulfurization agent |
| 10/17/2001 | EP1146130A2 Magnesium injection agent and process for ferrous metal treatment |
| 10/17/2001 | EP1144697A1 Reduction of chromium content in slag during melting of stainless steel in electric arc furnaces |
| 10/17/2001 | CN1318108A Refining method and refining appts. of moten steel |
| 10/17/2001 | CN1317585A Composite desulfurizing agent for iron and steel and its preparing process |
| 10/17/2001 | CN1317584A Al-Mg alloy for deoxidizing and desulfurizing in smelting steel |
| 10/17/2001 | CN1317583A Al-Ti-Fe alloy for deoxidizing and alloying in smelting steel |
| 10/17/2001 | CN1317582A Al-Mn-Ti-Fe alloy for deoxidizing and alloying in smelting steel |
| 10/17/2001 | CN1317581A Refining agent for refractory stainless steel |
| 10/16/2001 | CA2172428C Methods of processing aluminium dross and aluminium dross residue into calcium aluminate |
| 10/11/2001 | DE10014751A1 Processing of molten metal comprises charging the metal with a desulfurizing agent through a gas carrier at a specified speed |
| 10/10/2001 | EP1143023A1 Steel for welded structure purpose exhibiting no dependence of haz toughness on heat input and method for producing the same |
| 10/10/2001 | EP1141422A1 Method for denitriding molten steel during its production |
| 10/10/2001 | CN1316528A Multi-element modifier with higher effect for iron and steel |
| 10/10/2001 | CN1316527A Al-Mg-Fe alloy for deoxidation and desulfurization in smelting steel |
| 10/10/2001 | CN1316526A Spiral stirring and tangent deslagging technique and equipment of continuous desulfurization of molten iron |
| 10/10/2001 | CN1072731C Compounded carbon-silicon-manganese-barium-aluminium alloy blocks |
| 10/04/2001 | WO2001073140A1 Vacuum treatment of cast metal with simultaneous helium-injection stirring |
| 10/04/2001 | WO2001073139A2 Compositions and two-stage methods for the deoxidation of molten steel |
| 10/04/2001 | WO2001073138A2 Steelmaking |
| 10/04/2001 | EP0954615B1 Method and installation for ladle treatment of steel |
| 10/03/2001 | CN2451601Y Argon oxygen decarburizing system installation |
| 10/03/2001 | CN1315649A Equipment for jetting granular material into container |
| 10/03/2001 | CN1315648A Device for blowing gas into metallurgical furnace |
| 10/03/2001 | CN1072084C Nozzle system having inert gas distributor |
| 09/27/2001 | CA2497730A1 Process and apparatus for automatically controlling slag foaming |
| 09/26/2001 | EP0776983B1 Nozzle for blowing gas into molten metal and usage thereof |
| 09/26/2001 | CN1314954A Direct smelting process |
| 09/26/2001 | CN1314497A Alloy claded wire |
| 09/25/2001 | US6294005 Vacuum gas releasing system |
| 09/25/2001 | US6293988 Inoculant and inoculant method for gray and ductile cast irons |
| 09/20/2001 | WO2001068924A1 Method for controlling and adjusting the concentration of a gas component in a melt and a device for carrying out the same |
| 09/13/2001 | WO2001066809A1 Chromium-containing metal and method for producing the same |
| 09/12/2001 | EP1132487A1 Gas treatment of molten metals |
| 09/12/2001 | CN1312388A Premelt molten steel cleaning agent |
| 09/12/2001 | CN1070927C Method of vacuum decarburization refining of molten steel and apparatus therefor |
| 09/05/2001 | CN1311338A Si-Ca-C deoxidiser |
| 09/04/2001 | US6284016 Pressure converter steelmaking method |
| 08/30/2001 | US20010017434 Rotor for the treatment of a fluid such as a metal melt |
| 08/29/2001 | EP1127610A2 Rotor for the treatment of a liquid such as a metal melt |
| 08/29/2001 | EP1114872A9 Baking method in a vacuum induction melting apparatus |
| 08/29/2001 | EP0725151B1 Apparatus and method for refining molten metal |
| 08/28/2001 | US6280497 Cored wire for treating molten metal and method of manufacture |
| 08/28/2001 | US6279915 Refractory channel with outer insulation and method for joint packing |
| 08/23/2001 | US20010015516 Apparatus for injecting solid particulate material into a vessel |
| 08/21/2001 | US6277220 Contains oxides comprising silicon dioxide, calcium aluminum oxide, zirconium oxide; cold workability such as drawability; steel wires which have high fatigue strength can be produced from this wire rod as stock |
| 08/21/2001 | US6277216 Austenitized at a temperature of 900 degrees c to maintain a fine grain structure, subsequently quenched and tempered; high strength |
| 08/21/2001 | US6277171 Method of reducing the iron content of steel slag |
| 08/16/2001 | WO2001051675A8 Method for manufacturing composite deoxidizer of molten steel and the composite deoxidizer by using the method thereof |
| 08/15/2001 | CN2443313Y Spray lance driver |
| 08/15/2001 | CN1308687A Water-cooled vessel for vacuum processing of liquid steel |
| 08/15/2001 | CN1307936A System supplying adjacent turbulent gas spray and uniform gas spray |
| 08/15/2001 | CN1069702C High calcium-silicon iron |
| 08/09/2001 | WO2001057281A1 Composition for treating steel making slags |
| 08/09/2001 | WO2001057280A1 Method for grain refining of steel, grain refining alloy for steel and method for producing grain refining alloy |
| 08/09/2001 | WO2001057279A1 Porous agglomerates containing iron and at least one further element from groups 5 or 6 of the periodic table for use as an alloying agent |
| 08/09/2001 | CA2397524A1 Porous agglomerates containing iron and at least one further element from groups 5 or 6 of the periodic table for use as an alloying agent |
| 08/08/2001 | EP1122492A1 System for providing proximate turbulent and coherent gas jets |
| 08/02/2001 | WO2001055459A1 Method for treating slags or slag mixtures on an iron bath |
| 08/02/2001 | US20010010181 Permits material to be injected into the container of molten metal at a speed and direction that promotes controlled mixing |
| 08/02/2001 | DE10103940A1 Vorrichtung zum Einspeisen von Gas in einen Kessel An apparatus for injecting gas into a vessel |
| 08/02/2001 | DE10103605A1 Vorrichtung zum Einspeisen von festem Partikelmaterial in einen Kessel An apparatus for feeding solid particulate material into a vessel |
| 08/01/2001 | EP0861337B1 Method for decarburizing steels melts |
| 07/31/2001 | US6267799 Method of producing metals and metal alloys |
| 07/31/2001 | US6267798 Composition for treating steel making slags |
| 07/26/2001 | WO2001053543A1 Method for treating steel plant slag |
| 07/26/2001 | DE10012837C1 Production of steel alloy with a precisely defined nitrogen content comprises adding gaseous alloying component and inert gas to atmosphere in vessel with adjustment of pressure and concentration of the inert gas and the alloying component |
| 07/25/2001 | EP1118684A1 High-frequency vacuum induction melting apparatus |
| 07/25/2001 | EP1117845A1 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product |
| 07/25/2001 | CN1305536A Variably insertable combined lance with displacable burner and blower lance body |
| 07/24/2001 | US6264716 Introducing argon gas into molten steel in container; measuring the extent to which container is caused to vibrate; analog signals are produced; analog signals are converted to digital signals, digital signals are transformed; evaluating |
| 07/24/2001 | CA2097261C Process for treating molten metal during casting operation using a filter and filter for implementing the process |
| 07/19/2001 | WO2001051675A1 Method for manufacturing composite deoxidizer of molten steel and the composite deoxidizer by using the method thereof |
| 07/19/2001 | CA2391910A1 Method for manufacturing composite deoxidizer of molten steel and the composite deoxidizer by using the method thereof |
| 07/18/2001 | CN1304387A Method for treating stainless steel refining slag |
| 07/18/2001 | CN1303950A Core-covered wire for deep-desulfurization for steel production |
| 07/17/2001 | US6261338 Injection |
| 07/11/2001 | EP1114872A1 Baking method in a vacuum induction melting apparatus |
| 07/11/2001 | EP1114191A1 A direct smelting process |
| 07/05/2001 | DE19837149C2 Verfahren und Vorrichtung zum Aufbringen eines körnigen Materials, insbesondere eines Entschlackungsmaterials, auf die Badoberfläche einer metallischen Schmelze Method and apparatus for applying a particulate material, in particular of a purification material, onto the bath surface of a metallic melt |
| 07/04/2001 | EP1112388A1 Elongated product used for desulphurization of a steel bath |
| 07/04/2001 | CN1068060C Molten steel smelting apparatus for producing ultra-low carbon steel and smelting method using this apparatus |
| 07/04/2001 | CN1068059C Excellent machining property steel and steel sheet by electric furnace-vacuum degasifying process, and mfg. method thereof |