| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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| 04/15/1992 | EP0480856A1 Installation for descaling a lance, which will be introduced into a metallurgical vessel |
| 04/07/1992 | US5102449 Melting in cooled copper crucible under vacuum molding, applying magnetic field and electromagnetic stirring |
| 04/02/1992 | WO1992005288A1 Method and device for obtaining steel in a liquid bath |
| 04/01/1992 | EP0477661A1 Device for automatic handling of articles |
| 04/01/1992 | EP0477353A1 Metallurgical vessel and a process for producing the refractory lining of such vessels |
| 04/01/1992 | EP0477350A1 Basic refractory lining for a metallurgical vessel and a process for producing such lining. |
| 03/27/1992 | CA2047422A1 Device for the automatic handling of objects |
| 03/24/1992 | CA1297670C Device for introducing gas into molten metal in a wide annular stream |
| 03/19/1992 | WO1992004149A1 Method for automatically supplying, checking and placing refractory bricks in metallurgical reactors and vessels |
| 03/19/1992 | DE4029024A1 Quick-release coupling for connecting purge gas hose to pouring ladle - comprising cylindrical sleeve adaptor and sliding plug with coned metal-metal seal and lever operated cam locks |
| 03/18/1992 | EP0475804A1 Process for manufacture of tool steel, in particular for moulds and steel produced by this method |
| 03/18/1992 | EP0474883A1 Dc electric furnace for melting metal |
| 03/18/1992 | EP0474759A1 Treatment of a melt with a gas and means therefor |
| 03/18/1992 | EP0474703A1 Manufacture of ferroalloys using a molten bath reactor. |
| 03/18/1992 | CN1015910B Gas bubbling device |
| 03/18/1992 | CN1015909B Gas bubbling device |
| 03/17/1992 | US5096165 Metallurgical vessel with probe opening |
| 03/17/1992 | CA1297302C Process for continuous purification of hot metal |
| 03/17/1992 | CA1297300C Method for treatment of dust recovered from offgasses in metallurgical processes |
| 03/15/1992 | WO1992004998A1 Device for inserting and removing stopper bricks for metallurgical vessels |
| 03/10/1992 | CA1297144C Gas scavenging apparatus for metallurgical vessels |
| 03/10/1992 | CA1296890C Side-injected metal refining vessel |
| 03/04/1992 | EP0472721A1 Direct current electric furnace. |
| 03/03/1992 | CA1296523C Apparatus for lining the inner wall of a vessel with bricks |
| 02/27/1992 | DE4026897A1 Metallurgical vessel for electric arc furnace - has two=part electrode in base with connections for current and cooling water |
| 02/26/1992 | EP0472254A2 Metallurgical vessel with metal electrode |
| 02/25/1992 | US5091000 Bubbling a gas to trap inclusions which rise to the surfaces are removed |
| 02/25/1992 | US5090622 Arrangement for supplying media to a blowing lance |
| 02/23/1992 | WO1992003896A1 Treatment of oxide-containing dusts |
| 02/23/1992 | CA2089755A1 Treatment of oxide-containing dusts |
| 02/19/1992 | CN2096570U Double-decker shunt oxygen lance for converting steel |
| 02/19/1992 | CN2096569U Single line dystopia double flow oxygen lance |
| 02/19/1992 | CN1058807A Process of and apparatus for post combustion |
| 02/19/1992 | CN1015551B Process for melting scrap iron, sponge iron and/or solid pig iron or the like |
| 02/18/1992 | US5088696 Injecting a gas into liquid steel |
| 02/13/1992 | DE4025249A1 Steel scrap DC arc furnace - has oval crucible with offset cathode, copper lined walls and enclosed feed chute |
| 02/13/1992 | DE4025084A1 DC arc furnace with air-cooled electrodes - has steel plate bottom housing forming anode connection via several conductor attachments |
| 02/12/1992 | EP0470223A1 Metallurgical unit |
| 02/05/1992 | EP0470067A2 Process and installation for melting steel |
| 02/05/1992 | EP0470066A2 Process for melting steel from scrap and/or metal-containing waste material |
| 02/04/1992 | US5085691 Smelting carbon-containing semiproduct; tapping it into ladle; supplying slag-forming materials, reducer, and thermally pretreated oxide materials for alloying |
| 01/29/1992 | EP0468950A2 Plant for producing molten metals |
| 01/28/1992 | US5084093 Method for manufacturing molten pig iron |
| 01/23/1992 | DE4123391A1 Electrical blast furnace preheater - has static fan-shaped flame from distributor head with separate oxygen and fuel channels |
| 01/23/1992 | DE4022720A1 Untergefaess eines gleichstromlichtbogenofens Untergefaess a DC arc furnace |
| 01/22/1992 | EP0467874A1 Method for reprocessing steel mill dust and installation using this method |
| 01/22/1992 | EP0466971A1 Method for manufacture of a compound part |
| 01/22/1992 | EP0268606B1 Method and device for pre-heating waste metal for furnaces |
| 01/22/1992 | CN1058048A Method and apparatus for feeding iron-bearing materials to metallurgical furnaces |
| 01/18/1992 | WO1992002112A1 D.c arc furnace |
| 01/15/1992 | CN1057863A Device for automatic coupling of blowing-in lance to manifold |
| 01/09/1992 | WO1992000392A1 Withdrawal device for ladle bricks |
| 01/09/1992 | WO1992000390A1 Converter body for molten metal production |
| 01/08/1992 | EP0464427A2 Installation for automatic coupling of an injection lance to a collector unit |
| 01/08/1992 | CN1057599A Comprehensive utilization technology for open-hearth furnace cinder |
| 01/05/1992 | CA2043479A1 Device for the automatic coupling of a blowing-in lance to a manifold |
| 01/01/1992 | CN1057488A Electric furnace steelmaking method capable of reducing manganese from manganese-containing |
| 12/27/1991 | EP0462898A1 Process and installation for smelting of a charge in a furnace |
| 12/27/1991 | EP0462713A1 Method and apparatus for feeding iron-bearing materials to metallurgical furnaces |
| 12/26/1991 | WO1991019819A1 Method and apparatus for steel making |
| 12/24/1991 | US5074906 Method and installation for recovering energy in metallurgical processes |
| 12/17/1991 | CA1293121C Lance for blow-refinement in converter |
| 12/05/1991 | CA2043767A1 Low porosity-high density refractory plug with constant flow |
| 12/03/1991 | US5069715 Separate control of carburization and heating functions |
| 11/27/1991 | EP0458040A2 Gas purging assembly with a perforated brick and a gas purging brick |
| 11/27/1991 | CN1056568A Dc electric-arc furnace |
| 11/27/1991 | CN1056567A Smelting plant with two melting furnaces arranged in juxtaposed relationship |
| 11/27/1991 | CN1014904B Brick for gas-blowing wash |
| 11/26/1991 | US5067693 Electric arc oven for treating molten metals with a gas and a process therefor |
| 11/21/1991 | EP0456641A1 Process for preventing the formation of flue gases in metallurgical processes and during the transport of molten metal from a metallurgical vessel to casting vessels and device for transporting molten metals from a metallurgical furnace to a casting vessel. |
| 11/20/1991 | CN1014823B Apparatus for spraying touch-up materials onto perforated brick |
| 11/19/1991 | WO1991018119A1 Converter vessel support assembly |
| 11/19/1991 | US5066350 Protecting Pipes Used In Molten Metals |
| 11/19/1991 | US5066326 Melting Of Solid Ferrous Metal Scrap |
| 11/19/1991 | US5066325 Liquiefaction of coal to remove oil; pelletization, reduction, melting, forming mineral wool; electricity |
| 11/19/1991 | US5066322 Metallic coolant for a metallurgical bath |
| 11/19/1991 | US5065986 Automatic gas hookup to a ladle |
| 11/19/1991 | CA2083265A1 Converter vessel support assembly |
| 11/19/1991 | CA1292119C Apparatus for injecting substances into liquids |
| 11/18/1991 | WO1991018120A1 Smelting plant with two adjacent smelting furnaces |
| 11/13/1991 | EP0456085A1 Direct current arc furnace |
| 11/13/1991 | EP0456001A2 Device for gas flushing |
| 11/13/1991 | CN1056128A Gas flushing device and sleeve brick and gas flushing brick for it |
| 11/12/1991 | US5064174 Apparatus for production of energy and iron materials, including steel |
| 11/12/1991 | CA1291873C Stopper for a tap hole of a steel converter and method of operatinga converter |
| 11/10/1991 | CA2040494A1 Direct-current arc furnace |
| 11/08/1991 | CA2041925A1 Gas flushing brick |
| 11/06/1991 | CN1055955A Recovery and utilization method of electric furnace powder dust |
| 11/06/1991 | CN1014613B Vacuum induction furnace |
| 11/06/1991 | CN1014602B Process of self-decomposition for vessel slag afterheat |
| 11/05/1991 | US5062615 Apparatus for the introduction of reagents in powder form into a melting pan |
| 11/05/1991 | US5062613 Two speed hoist drive assembly |
| 10/31/1991 | WO1991016460A1 Metallurgical vessel, and a process and device for producing a lining for such vessels |
| 10/30/1991 | EP0453673A1 Fibre composite article and method of manufacture therof |
| 10/29/1991 | US5060915 Two-piece terminal brick |
| 10/29/1991 | US5060913 Integrated metallurgical reactor |
| 10/29/1991 | US5060530 Holder for molten metal sampling device |
| 10/23/1991 | EP0452445A1 Process for introducing free-flowing additives into a metallurgical vessel and vessel for this process |
| 10/16/1991 | EP0451987A2 In-furnace slag level measuring method and apparatus therefor |
| 10/16/1991 | EP0451473A1 Process and installation for feeding of pulverized agents into a melting ladle |