| 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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| 07/04/1984 | EP0112540A1 Installation for guiding and changing immersion lances |
| 07/04/1984 | EP0112393A1 Oxygen-fuel burner with lancing capability and method of producing steel |
| 07/03/1984 | US4458353 Channel-type induction furnace |
| 07/03/1984 | US4457778 Desiliconization, dephosphorization, decarburization |
| 07/03/1984 | US4457777 Steelmaking |
| 07/03/1984 | US4457459 Valve suitable for controlling teeming from furnace tapholes |
| 06/26/1984 | US4456478 Injection of high prewssure gas through tubes extending below slag layer into melt in ladle to cause overflow |
| 06/26/1984 | US4456477 Production of ultra-low phosphorus steel |
| 06/26/1984 | US4456476 Melting scrap iron using controlled fluid flow |
| 06/26/1984 | CA1169901A1 Waste gas apparatus for electric furnace |
| 06/21/1984 | WO1984002353A1 Method for making steel |
| 06/20/1984 | EP0110904A1 Device for casting, particularly converter for casting and/or post-treating molten metal. |
| 06/19/1984 | US4455660 Inclined arrangement of the support surfaces of a furnace body and furnace lid for electric arc furnaces |
| 06/19/1984 | US4455166 Supersonic |
| 06/19/1984 | US4455014 Production of refractory linings or walls |
| 06/13/1984 | EP0110809A1 Process and installation for the treatment of steel in the ladle |
| 06/13/1984 | EP0110806A1 Regulating system for delivering solid materials to a blowing lance |
| 06/12/1984 | CA1168862A1 Tuyere for blowing gases into molten metal bath container |
| 06/07/1984 | WO1984002147A1 Apparatus for introducing substances into liquids e.g. metal melts |
| 05/30/1984 | EP0109916A1 Apparatus for delivering gaseous and solid materials to a bath of molten metal by way of refining |
| 05/29/1984 | US4451293 Slag-forming agent and process for producing the agent |
| 05/29/1984 | US4451291 Overlappi-ng short blowing periods for removal of impurities |
| 05/29/1984 | US4451288 Method for producing low hydrogen content in steels produced by subsurface pneumatic refining |
| 05/22/1984 | US4450005 Controlling the velocity of the cooling gas |
| 05/22/1984 | US4450003 Suctioning of carbon monoxide through apertures positioned above the sintering zone |
| 05/22/1984 | US4449701 Tuyere for the injection of gases into a metallurgical vessel |
| 05/08/1984 | US4447265 Carbon and oxide of calcium |
| 05/02/1984 | EP0107609A1 Process and installation for heating-up a scrap-charged steel bath |
| 05/02/1984 | EP0107299A1 Use of fluxes for refining metals, particularly steel melts |
| 05/02/1984 | EP0107154A1 Preheater for material to be charged |
| 05/01/1984 | US4445933 Method of refining molten steel |
| 05/01/1984 | US4445849 Device for thermal treatment of scrap |
| 05/01/1984 | CA1166693A1 Reference electrode for oxygen probe |
| 04/25/1984 | EP0106822A1 Nozzle for injection lance |
| 04/24/1984 | USRE31566 Cooling structure for a metallurgical furnace |
| 04/24/1984 | US4444378 Apparatus for separating slag from a molten metal |
| 04/24/1984 | CA1166018A1 Steelmaking process with separate refining steps |
| 04/18/1984 | EP0105846A1 Procedure and means for preheating scrap to be charged into a smelting furnace |
| 04/18/1984 | EP0105380A1 Bottom blowing gas nozzle in molten metal refining furnace and method of melting steel using the same nozzle |
| 04/17/1984 | US4443252 Blowing oxygen, inert gases, apertures, carbon |
| 04/17/1984 | US4443188 Liquid cooling arrangement for industrial furnaces |
| 04/17/1984 | US4442706 Probe and a system for detecting wear of refractory wall |
| 04/10/1984 | US4442526 Electric arc furnace arcing electrode seal |
| 04/10/1984 | US4441701 Apparatus for supporting and guiding a sub-lance |
| 04/04/1984 | EP0104841A1 Removing phosphorous from iron |
| 04/04/1984 | EP0104747A1 Improvements in lancing in electric arc steelmaking |
| 04/04/1984 | EP0104359A1 Process and device for producing hot gases |
| 04/04/1984 | EP0104326A2 Double circuit lance for refining molten metals |
| 04/03/1984 | CA1164653A1 Converter for refining liquid metals |
| 03/27/1984 | US4439234 Method of increasing the cold material charging capacity in the top-blowing production of steel |
| 03/27/1984 | US4438907 Gas blowing nozzle, and production and usage thereof |
| 03/27/1984 | US4438653 Sublance for measuring and/or sampling in a metallurgical furnace |
| 03/21/1984 | EP0103534A2 Crucible furnace |
| 03/20/1984 | CA1163801A1 Nozzle for simultaneous and separate injection of a gas and a powder |
| 03/15/1984 | WO1984000980A1 Tuyere for bottom blowing through the metal |
| 03/13/1984 | US4437186 Waste gas apparatus for electric furnace |
| 03/13/1984 | US4436553 Process to produce low hydrogen steel |
| 03/13/1984 | US4436551 Carbon as a reducing agent |
| 03/13/1984 | US4436291 Metallurgical vessel suspension system |
| 03/13/1984 | US4436287 Method for protecting tuyeres for refining a molten iron |
| 03/06/1984 | US4435813 DC Arc furnace component |
| 03/06/1984 | US4435812 Electric furnace construction |
| 03/06/1984 | US4434976 Concentric multi-tube-system nozzle situated beneath the surface of the melt in a refining vessel |
| 03/06/1984 | CA1163382A1 Process of treating dust containing zinc and lead and derived in an iron or steel making process |
| 03/01/1984 | WO1984000780A1 Method for manufacturing steel in an oxygen converter |
| 02/28/1984 | US4434494 Contact electrode for melting and heating furnaces with DC plasma heating |
| 02/28/1984 | US4434005 Method of and apparatus for refining a melt containing solid cooling material |
| 02/28/1984 | US4433832 For injecting gas into molten metal |
| 02/21/1984 | US4433405 Rotary recording medium reproducing apparatus having a mechanism for connecting a lid member to a jacket |
| 02/21/1984 | US4432534 Oxygen lance for steel converter |
| 02/21/1984 | US4432533 Flame gunning of refractory linings |
| 02/14/1984 | US4431170 Device for the manipulation of immersion lances for metallurgical furnaces |
| 02/14/1984 | US4431169 Method and apparatus for preventing the inclusion of slag into the molten steel tapped from a converter |
| 02/07/1984 | US4430117 Production of steel |
| 02/07/1984 | US4430116 Method and apparatus for heating or heating and reduction raw materials for a metallurgical furnace utilizing waste gases from the same furnace |
| 02/01/1984 | EP0099713A1 A method for protecting tuyères for refining a molten iron |
| 02/01/1984 | EP0099542A2 Spray device, in particular for the lining of smelt furnaces, ladles or the like |
| 01/31/1984 | US4428564 Metallurgical vessel |
| 01/25/1984 | EP0099348A1 Porous tip for an injection lance for stirring steel by injection |
| 01/25/1984 | EP0098926A1 Process for the production of steel starting from solid iron-bearing material |
| 01/24/1984 | US4427186 Liquid-cooled lance for blowing oxygen onto a steel bath |
| 01/24/1984 | US4427184 Taphole apparatus |
| 01/24/1984 | US4427183 Gas control system for steel-making converters |
| 01/24/1984 | CA1160839A1 Apparatus for manufacturing rapidly cooled solidified slag |
| 01/24/1984 | CA1160836A1 Apparatus for preheating steel scrap |
| 01/19/1984 | WO1984000176A1 Oxygen-fuel burner with lancing capability and method of producing steel |
| 01/17/1984 | US4426709 Arrangement for the production of steel |
| 01/17/1984 | US4426224 Lance for powder top-blow refining and process for decarburizing and refining steel by using the lance |
| 01/17/1984 | US4426223 Refining of ferrochromium metal |
| 01/17/1984 | US4426069 Mettalurgical vessel suspension system |
| 01/17/1984 | CA1160457A1 Method for preheating steel scrap by exhaust gas from steelmaking electric furnace |
| 01/11/1984 | EP0097971A2 Method for producing low hydrogen content in steels produced by subsurface pneumatic refining |
| 01/10/1984 | US4424955 Apparatus for treating liquid metal in a vessel |
| 01/10/1984 | CA1160215A1 Porous refractory elements for the passage of pressurized gaseous fluids |
| 01/04/1984 | EP0097610A1 Method of and installation for emptying metallurgical vessels |
| 01/03/1984 | US4423858 Tuyere or nozzle |
| 01/03/1984 | CA1159946A1 Device to determine the level of the slag contained in a metallurgic vessel and to appreciate its physical state |
| 01/03/1984 | CA1159923A1 Slag level indicator for metallurgic vessels |
| 01/03/1984 | CA1159653A1 Pneumatic stirring process for a bath of molten metal |
| 01/03/1984 | CA1159651A1 Process for conditioning slag during refining process of a metal bath |