| Patents for C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steel; Treatment in molten state of ferrous alloys (64) |
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| 01/28/2014 | CA2516218C Method of modifying iron based glasses to increase crystallization temperature without changing melting temperature |
| 01/26/2010 | CA2562334C Tapping pipe |
| 07/07/2009 | US7556765 Tapping pipe |
| 10/29/2008 | CN100429323C Tapping pipe |
| 07/23/2008 | CN100404722C Method of modifying iron based glasses to increase crytallization temperature without changing melting temperature |
| 07/19/2007 | US20070164491 Tapping pipe |
| 06/20/2007 | EP1678333B1 Tapping tube |
| 04/18/2007 | CN1950523A Tapping pipe |
| 03/07/2007 | EP1601805A4 Method of modifying iron based glasses to increase crytallization temperature without changing melting temperature |
| 03/06/2007 | US7186306 Adding a lanthanide element, including gadolinium; increased stability of the glass; decrease in critical cooling rate necessary for glassy alloy formation; suitable for a wide variety of processing by a larger number of standard industrial processing techniques; automobiles; engines; power plants |
| 07/12/2006 | EP1678333A2 Tapping tube |
| 04/19/2006 | CN1761770A Method of modifying iron based glasses to increase crytallization temperature without changing melting temperature |
| 04/06/2006 | WO2005118889A3 Tapping tube |
| 12/15/2005 | WO2005118889A2 Tapping tube |
| 12/07/2005 | EP1601805A2 Method of modifying iron based glasses to increase crytallization temperature without changing melting temperature |
| 06/16/2005 | DE102004027440B3 Process to optimize the geometry of a passage transporting molten metal from a converter furnace to an extrusion assembly involves using a discharge passage which conforms to a specific mathematical formula |
| 12/16/2004 | US20040250929 Method of modifying iron based glasses to increase crystallization temperature without changing melting temperature |
| 10/21/2004 | WO2004074522A3 Method of modifying iron based glasses to increase crytallization temperature without changing melting temperature |
| 09/02/2004 | WO2004074522A2 Method of modifying iron based glasses to increase crytallization temperature without changing melting temperature |
| 09/02/2004 | CA2516218A1 Method of modifying iron based glasses to increase crystallization temperature without changing melting temperature |
| 12/11/2002 | CN1095876C Method for oxygen furnace steel in electric arc furnace |
| 09/01/1999 | CN1227265A Method for injection of oxygen in electric arc furnace |
| 09/26/1995 | CA2006351C Purifying molten metal |
| 08/18/1993 | EP0309583B1 Method of melting and refining metals, and an apparatus for cooling electrodes used therefor |
| 07/29/1992 | CN1017629B Process for continuously melting scrap as well as apparatus for performing this process |
| 08/13/1991 | CA1287495C Magnesium calcium oxide composite |
| 02/19/1991 | US4993689 Convertor for continuously melting scrap with tapping means |
| 01/27/1991 | CA2021505A1 Casting of molten iron and filters for use therein |
| 08/29/1990 | EP0384418A2 Fireproof fixing device of at least one pane |
| 08/15/1990 | CN1009208B Injection of substances into high temp. liquids |
| 07/10/1990 | US4941149 Method of melting and/or refining metals and cooling device for the graphite electrode used for the same |
| 04/25/1990 | EP0264385B1 Injection of substances into high temperature liquids |
| 04/18/1990 | CN1041395A Desulphurising agent for iron melts, process for producting thereof, and process for desulphursing iron melts by using same |
| 02/13/1990 | US4900357 Injection of substances into high temperature liquids |
| 02/07/1990 | CN1039447A Process for heating steel melts as well as device for performing this process |
| 01/31/1990 | EP0352356A1 Process and relevant equipment for carrying out the continuous casting of steel in the complete absence of oxidating agents |
| 01/23/1990 | US4895594 Or pig iron, sub-stoichiometric burners, combustion, discharging, ladles, tapholes, preferential, rotation |
| 06/28/1989 | CN1033529A Process for continuously melting scrap as well as apparatus for performing this process |
| 06/21/1989 | EP0321443A2 Process and installation for continuously melting scrap |
| 04/05/1989 | EP0309583A1 Method of melting and refining metals, and an apparatus for cooling electrodes used therefor |
| 04/05/1989 | CN1003796B 镁.氧化钙复合物 Magnesium. Calcium oxide composite |
| 09/27/1988 | CA1242320A1 Apparatus for introducing substances into liquids e.g. metal melts |
| 09/22/1988 | WO1988007315A1 Method of melting and refining metals, and an apparatus for cooling electrodes used therefor |
| 04/27/1988 | EP0264385A1 Injection of substances into high temperature liquids. |
| 02/24/1988 | EP0256091A1 Magnesium calcium oxide composite |
| 11/10/1987 | US4705561 Magnesium calcium oxide composite |
| 10/20/1987 | US4701215 Apparatus for introducing substances into liquids e.g. metal melts |
| 09/30/1987 | CN87101759A Magnesium, calcium oxide composite |
| 09/23/1987 | CN87102178A Injection of substances into high temperature liquids |
| 09/02/1987 | EP0234852A1 Injection of substances into high temperature liquids |
| 08/27/1987 | WO1987005051A1 Injection of substances into high temperature liquids |
| 07/30/1987 | WO1987004468A1 Magnesium calcium oxide composite |
| 06/16/1987 | EP0225414A1 A new steel |
| 04/01/1987 | EP0126132B1 Apparatus for introducing substances into liquids e.g. metal melts |
| 01/27/1987 | CA1217059A1 Production of liquid iron |
| 01/07/1987 | EP0207224A1 Apparatus for introducing substances into liquids e.g. metal melts |
| 03/11/1986 | US4575393 Metallurgy |
| 07/10/1985 | EP0147422A1 Tough, wear- and abrasion-resistant, high chromium hypereutectic white iron |
| 03/27/1985 | EP0134852A1 Production of liquid iron |
| 12/06/1984 | WO1984004760A1 Tough, wear- and abrasion-resistant, high chromium hypereutectic white iron |
| 11/28/1984 | EP0126132A1 Apparatus for introducing substances into liquids e.g. metal melts. |
| 08/29/1984 | EP0116756A1 Apparatus for introducing substances into liquids e.g. metal melts |
| 06/07/1984 | WO1984002147A1 Apparatus for introducing substances into liquids e.g. metal melts |
| 11/07/1978 | CA1041769A1 Porous ferrous metal impregnated with magnesium metal |