| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
|---|
| 07/12/1994 | US5328157 Method and an apparatus for sealing tuyeres in the surrounding refractory lining |
| 07/12/1994 | CA1330626C Metallic coolant for a metallurgical bath, method of cooling using the coolant, method of manufacture thereof and a method of continuous casting |
| 07/12/1994 | CA1330623C Method for manufacturing steel through smelting reduction |
| 07/07/1994 | WO1994014983A1 Tilting device for a direct current arc furnace and process for emptying the furnace |
| 07/06/1994 | EP0605378A1 Method of valorizing the slag of a steelmaking electric furnace |
| 07/06/1994 | EP0436718B1 Method of charging ore in melt-reduction |
| 07/05/1994 | US5327357 Method of decarburizing molten metal in the refining of steel using neural networks |
| 06/29/1994 | EP0603480A2 Sliding closure in particular for a converter holding a bath of molten metal |
| 06/29/1994 | CN2170308Y Assembled center water-cooling oxygen blow head |
| 06/29/1994 | CN1088620A Method for producing steel |
| 06/28/1994 | US5324342 Decarbonizing melted steel by bubbling mixture of oxygen and non-oxidizing gas through melt |
| 06/25/1994 | CA2111756A1 Tilting mechanism for a dc arc furnace and process for discharging the furnace |
| 06/23/1994 | WO1994013840A1 Flow control device for the suppression of vortices |
| 06/22/1994 | EP0357795B1 Radiation construction method for molten metal outflow port, its apparatus and recess radiating impeller used for said apparatus |
| 06/22/1994 | EP0355163B1 Process for producing molten stainless steel |
| 06/22/1994 | EP0328677B1 PROCESS FOR MELT REDUCTION OF Cr STARTING MATERIAL AND MELT REDUCTION FURNACE |
| 06/21/1994 | US5323417 Metallurgical vessel for direct-current arc equipment |
| 06/21/1994 | US5322544 Using the combustion of rubber as heat source |
| 06/15/1994 | CN1025069C Smelting plant with shaft-like material preheater |
| 06/15/1994 | CN1025051C Gas-cleaning device of melting metal container |
| 06/14/1994 | US5320330 Gas tight lance closure at a cooling chimney hood for steel convertors |
| 06/09/1994 | WO1994012673A1 A method of manufacturing stainless steel |
| 06/09/1994 | CA2084845A1 Flow control device for the suppression of vortices |
| 06/08/1994 | EP0600362A1 DC arc furnace and operation method |
| 06/08/1994 | CN1087682A A method for blowing oxidizing gases into molten metal |
| 06/07/1994 | CA2029285C Direct current electric arc furnace |
| 06/07/1994 | CA1330103C Method for smelting reduction in electric furnace |
| 06/01/1994 | EP0599773A2 MgO-C brick containing a novel graphite |
| 06/01/1994 | EP0599431A1 Steel plant incorporating a metallurgical vessel mounted in a circular support ring |
| 06/01/1994 | EP0581813A4 Lance for immersion in a pyrometallurgical bath and method involving the lance |
| 06/01/1994 | DE4325208A1 Prodn. of casting refractories for lining ladle |
| 06/01/1994 | CN2167096Y Oxygen blowing head with central water-cooling means |
| 06/01/1994 | CN1024811C Air blowing and supply system at bottom of arc furnace |
| 05/31/1994 | US5316270 Device for the charging of materials into a furnace and the preheating of these |
| 05/31/1994 | US5316268 Method for increasing the durability of refractory vessel linings |
| 05/26/1994 | WO1994011536A1 High-production rotary furnace steelmaking |
| 05/25/1994 | EP0598221A1 A method for blowing oxidizing gases into molten metal |
| 05/25/1994 | EP0568578A4 Lance carriage |
| 05/25/1994 | CN1024683C Method for accelerating waste steel smelting in arc furnace |
| 05/24/1994 | US5314527 Treatment with acid, sodium chloride and sodium hypochlorite |
| 05/24/1994 | US5314524 Process of discharging charge-build up in slag steelmaking processes |
| 05/20/1994 | CA2103266A1 A method for blowing oxidizing gases into molten metal |
| 05/18/1994 | EP0597270A2 A method for operating a multimedia tuyère and the tuyère system |
| 05/18/1994 | CN2165138Y Hanging moveable steel spout |
| 05/18/1994 | CN1086894A Scrap conveyor |
| 05/18/1994 | CN1086765A Refractory material coated paper oxygen blowing tube |
| 05/18/1994 | CN1024566C Manufacture of ferro alloy by molten bath reactor |
| 05/17/1994 | US5312525 Short-circuiting an electrode for transport of impurities |
| 05/17/1994 | CA1329483C Controlling disolved oxygen content in molten steel |
| 05/12/1994 | CA2102871A1 Method for operating a multimedia tuyere and the tuyere system |
| 05/11/1994 | WO1994010348A1 Process and device for melting scrap |
| 05/11/1994 | WO1994010347A1 Refractory coated iron-based pipe |
| 05/11/1994 | DE4304538C1 Immersion measuring or sampling lance for converter - has protective cardboard tube with splayable seating end |
| 05/11/1994 | CN1086596A Continuous slagging machine of Martin furnace and its process |
| 05/11/1994 | CN1086546A A method for protecting the refractory lining in the gas space of a metallurgical reaction vessel |
| 05/11/1994 | CN1086545A A method for intensifying the reactions in metallurgical reaction vessels |
| 05/11/1994 | CA2147972A1 Process and device for the melting down of scrap |
| 05/10/1994 | US5310166 Self-cooling lance or tuyere |
| 05/10/1994 | US5310164 Method of tapping melt from a melt vessel |
| 05/03/1994 | US5309396 Input buffer circuit, input/output buffer circuit and portable semiconductor memory device with back-up power |
| 05/03/1994 | US5308043 Top submergable lance |
| 05/03/1994 | US5307999 Metallic coolant for a metallurgical bath, method of manufacture |
| 04/28/1994 | WO1994009332A1 Scrap conveyor |
| 04/28/1994 | WO1994009167A1 Extraction of mercury and mercury compounds from contaminated material and solutions |
| 04/28/1994 | WO1994009163A1 Method for continuously melting down scrap metal |
| 04/28/1994 | DE4302357C1 Removing off-gas during steel prodn. - using a valve to regulate the discharge of off-gas to the dust-removing plant as air is blown into the cupola |
| 04/28/1994 | DE4236510A1 Verfahren und Vorrichtung zum Einschmelzen von Schrott Method and apparatus for melting scrap |
| 04/27/1994 | EP0594326A1 Lance for inrtroducing reactants into molten metal |
| 04/26/1994 | CA1328902C Apparatus and method for melting and homogenizing batch material |
| 04/20/1994 | EP0592831A1 A method for protecting refractory lining in the gas space of a metallurgical reaction vessel |
| 04/20/1994 | EP0592830A1 A method for intensifying the reactions in metallurgical reaction vessels |
| 04/20/1994 | EP0592723A1 Continuous scrap preheating |
| 04/20/1994 | CN1085605A Technology for smelting ultralow-carbon high-chromium alloyed steel by subaerated induction furnace |
| 04/19/1994 | US5305261 Semiconductor memory device and method of testing the same |
| 04/19/1994 | US5304230 Method of disposing of organic and inorganic substances and a plant for carrying out the method |
| 04/19/1994 | US5303901 Blowing lance with cyclic modulator means for varying flow rate |
| 04/19/1994 | CA1328563C Method of treating metal melts and apparatus for carrying out the method |
| 04/19/1994 | CA1328557C Automatic lance changeover device |
| 04/13/1994 | EP0591971A1 Method of degassing and decarburizing stainless molten steel |
| 04/13/1994 | EP0407535B1 Metallurgical vessel and arrangement of the same |
| 04/12/1994 | US5302184 Manufacture of ferroalloys using a molten bath reactor |
| 04/12/1994 | US5301928 Blowing lance suspension with integrated medium supply |
| 04/06/1994 | CN1024137C Method for the protection of wall of smelting furnace and the furnace for using the method |
| 04/05/1994 | US5299785 Gas purging plug for electric-arc furnaces and the corresponding electric-arc furnace |
| 03/30/1994 | EP0589366A1 Steelplant lay-out |
| 03/30/1994 | EP0589150A1 Bottom electrode for direct current arc furnaces |
| 03/30/1994 | CN1084631A Deslagging door of an electric-arc furnace |
| 03/30/1994 | CN1084571A Oxygen-blast smelting process for manufacture of steel in induction electric furnace |
| 03/30/1994 | CN1084570A Method for manufacture of steel in electric furnace using pig-iron instead of scrap steel |
| 03/30/1994 | CN1084569A A tiltable converter |
| 03/29/1994 | US5298053 Concurrent reheating and desulfurization of steels |
| 03/23/1994 | CN1084221A Water cooling system and unit for modern converter |
| 03/22/1994 | US5297160 Furnace electrode design |
| 03/22/1994 | US5297159 Direct current-light arc furnace |
| 03/22/1994 | US5295669 Forming a silica based coating for pipes |
| 03/22/1994 | CA1327887C Nozzles for injecting substances into liquids |
| 03/17/1994 | WO1994005815A1 Method for producing steel |
| 03/17/1994 | CA2136731A1 Method for producing steel |
| 03/16/1994 | EP0587518A1 Slagremoving door of an arc furnace |
| 03/16/1994 | EP0477350B1 Basic refractory lining for a metallurgical vessel and a process for producing such lining |