| 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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| 07/06/1983 | EP0083138A1 Converter vessel for steel preparation |
| 07/05/1983 | US4391633 Process for dephosphorization, desulfurization and denitrification of chromium-containing pig iron |
| 06/28/1983 | US4390773 Contact electrode for melting and heating furnaces with DC plasma heating |
| 06/28/1983 | US4390168 Crane and hoist for steel manufacturing mill |
| 06/28/1983 | US4390166 Magnesium oxide, tars |
| 06/28/1983 | CA1148746A1 Converter steelmaking process |
| 06/22/1983 | EP0082091A1 Process and device for the recuperation of combustible gases in an electrometallurgical furnace |
| 06/22/1983 | EP0082078A1 Permeable refractory element introducing a stirring-fluid into a molten-liquid metal bath |
| 06/22/1983 | EP0082073A1 Method and apparatus for sintering refractory walls |
| 06/22/1983 | EP0081692A2 Process for preparing unburned refractory bricks |
| 06/21/1983 | US4389360 Method of forming a protective coating on a long lance to be immersed in molten metal |
| 06/21/1983 | US4389043 Metallurgical melting and refining unit |
| 06/15/1983 | EP0081448A1 Process and apparatus for refining a metal bath containing solid cooling materials |
| 06/14/1983 | US4388113 Method of preventing damage of an immersed tuyere of a decarburization furnace in steel making |
| 06/14/1983 | US4388112 Desiliconizing, dephosphorizing, decarburizing, and desulfurizing |
| 06/14/1983 | US4387884 Structure of oxygen passage in steel converter vessel supporting trunnion |
| 06/14/1983 | US4387883 Changeover device for an installation for recovery of the gases and fumes proceeding from a converter |
| 06/14/1983 | CA1148034A1 Method and apparatus for patching linings of upright converters |
| 06/14/1983 | CA1147966A1 Method for producing steel |
| 06/08/1983 | EP0080994A1 Apparatus for electroslag remelting of alloys, especially of steels |
| 06/07/1983 | US4386957 Injection of nitrogen and oxygen, decarbonization |
| 06/07/1983 | US4386763 Lance mounted spray apparatus |
| 06/07/1983 | US4386737 Flame guniting lance |
| 06/07/1983 | CA1147553A1 Method and apparatus for automatically punching the tuyeres of a converter |
| 06/01/1983 | EP0080403A1 Installation for introducing gas into a bath of liquid metal |
| 05/31/1983 | US4385889 Apparatus for preheating material for making steel |
| 05/31/1983 | US4385753 Tuyere for the simultaneous and separate introduction of at least one gas and one powder material |
| 05/31/1983 | US4385752 Porous plug for molten metal vessel |
| 05/31/1983 | US4385749 Method and a device for repairing the tap hole of a steel converter |
| 05/31/1983 | US4385748 Rotary steel converter |
| 05/25/1983 | EP0079655A1 Ld-Steel converter having a refractory lining containing a gas-transmitting bottom element |
| 05/25/1983 | EP0079640A1 Apparatus for building-up and repairing the refractory lining of industrial furnaces and hot-running vessels |
| 05/25/1983 | EP0079507A1 Fluid feeding valve |
| 05/24/1983 | CA1146759A1 Method of manufacturing stainless steel |
| 05/24/1983 | CA1146758A1 Method for producing electric steel |
| 05/18/1983 | EP0079290A1 Equipment for the temperature measurement and/or the sampling of a refining installation |
| 05/18/1983 | EP0079182A1 Improvements in or relating to the production of steel |
| 05/17/1983 | US4383678 Electric furnace scrap handling mill layout |
| 05/17/1983 | CA1146599A1 Gas permeable refractory body |
| 05/10/1983 | US4382817 Process for periodically and pneumatically stirring a bath of molten metal |
| 05/10/1983 | US4382582 Air blast slag cut off device for steel converter |
| 04/28/1983 | WO1983001462A1 Process of refining ferrochromium metal |
| 04/27/1983 | EP0077750A1 Channel furnace |
| 04/26/1983 | CA1145145A1 Method of, and a converter, for making steel |
| 04/26/1983 | CA1145138A1 Tilting drive for mettalurgical vessels, more particularly a tilting drive for a steel-plant converter |
| 04/26/1983 | CA1145137A1 Metallurgical vessel, more particularly a steel-plant converter |
| 04/26/1983 | CA1145136A1 Metalurgical vessel |
| 04/19/1983 | CA1144767A1 Making of steel by the bof process |
| 04/13/1983 | EP0076538A1 Liquid cooled lance for blowing oxygen onto a steel bath |
| 04/06/1983 | EP0075980A1 Apparatus for supporting and guiding an auxiliary lance which carries out measurements and/or takes samples in a metallurgical furnace |
| 04/05/1983 | CA1143947A1 Method for increasing vessel lining life for basic oxygen furnaces |
| 04/05/1983 | CA1143940A1 Device for th vibration of slags |
| 04/05/1983 | CA1143921A1 Gate valve arrangement for the tap-hole of containers for metal melts |
| 03/29/1983 | US4378106 Refractory gas permeable structural unit |
| 03/29/1983 | CA1143703A1 Transporter-lifting vehicle for metallurgical vessels, more particularly for steel-plant converters |
| 03/22/1983 | US4377347 Method for measuring temperature of molten metal received in vessel |
| 03/16/1983 | EP0074270A1 Process and apparatus for continuous steel-making |
| 03/16/1983 | EP0074214A1 Scrap preheating system for electric furnace |
| 03/15/1983 | US4376373 Energy recovery system |
| 03/09/1983 | EP0073746A1 Method and apparatus for testing and taking samples from liquid metal |
| 03/09/1983 | EP0073538A1 Inclined contact surface disposition of the cover and the vessel in an arc furnace |
| 03/09/1983 | EP0073274A1 Method of preliminary desiliconization of molten iron by injecting gaseous oxygen |
| 03/08/1983 | US4376043 Process of treating dust containing zinc and lead and derived in an iron or steel making process |
| 03/08/1983 | US4375958 Method for preheating steel scrap by exhaust gas from steelmaking electric furnace |
| 03/08/1983 | US4375885 Reverberatory furnace |
| 03/01/1983 | CA1141963A1 Use of argon in the basic oxygen process to control slopping |
| 03/01/1983 | CA1141953A1 Mechanical punching device for punching the tuyeres of a converter |
| 02/22/1983 | CA1141548A1 System and process for off-gas recovery |
| 02/16/1983 | EP0071755A1 Method of preheating and heating empty AOD converter vessels |
| 02/15/1983 | US4373949 Method for increasing vessel lining life for basic oxygen furnaces |
| 02/15/1983 | US4373911 Apparatus for preheating a steel scrap |
| 02/15/1983 | US4373907 Apparatus for manufacturing rapidly cooled solidified slag |
| 02/15/1983 | US4373705 Method and apparatus for separating slag and pouring molten steel out of a container such as a converter or the like |
| 02/15/1983 | CA1141175A1 Method of safely injecting oxygen reactive materials into a submerged oxygen gas stream |
| 02/15/1983 | CA1141168A1 Method of improving the performance of submerged oxygen injectors |
| 02/15/1983 | CA1141166A1 Steelmaking process |
| 02/15/1983 | CA1141155A1 Torque-support for drives riding on shaft-journals |
| 02/01/1983 | US4371392 Process for refining a molten metal |
| 01/26/1983 | EP0070791A1 Rotary joint with multiple connections |
| 01/26/1983 | EP0070526A1 Operation of a top-and-bottom blown converter and a lance used therefor |
| 01/25/1983 | US4370154 Gas diversion unit |
| 01/25/1983 | CA1140074A1 Lining device for metallurgical vessels, more particularly, for steel-plant converters and/or blast furnaces |
| 01/25/1983 | CA1139939A1 Method and apparatus for separating slag and pouring molten steel out of a container such as a converter or the like |
| 01/25/1983 | CA1139938A1 Instrument lance for basic oxygen steelmaking furnace |
| 01/19/1983 | EP0070197A1 A nozzle assembly for bottom blown steel converter |
| 01/19/1983 | EP0070109A1 Injection lances |
| 01/18/1983 | US4369060 Process of refining of a metal bath in a crucible with oxygen blast at the top and crucible used |
| 01/18/1983 | US4368877 System for monitoring slag thickness and consistency in refining crucible |
| 01/18/1983 | CA1139842A1 Oxygen sensor having consumable shield |
| 01/18/1983 | CA1139792A1 Wear lining structure of a converter |
| 01/18/1983 | CA1139557A1 Top blowing lance |
| 01/12/1983 | EP0069490A1 Improvements in or relating to metal refining processes |
| 01/12/1983 | EP0069433A1 Sublance for measuring and/or sampling in a metallurgical furnace |
| 01/11/1983 | US4367868 Refractory lining for a metal pipe |
| 01/05/1983 | EP0069050A1 Labour facilitating device for conveying building materials to a working site from a higher position to a lower position or in reverse |
| 01/05/1983 | EP0068180A1 Direct current arc furnace control system |
| 01/04/1983 | US4366953 Oxygen lance |
| 01/04/1983 | US4366952 Immersion-lance for introducing a finely divided, particulate solid material into a metal melt |
| 01/04/1983 | CA1138644A1 Switching values for steel plant couverter gas recovery |
| 01/04/1983 | CA1138642A1 Apparatus for supplying fluids to converters |