| 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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| 09/10/1985 | CA1193103A1 Method of operating an open hearth furnace |
| 09/04/1985 | EP0153552A1 Plant comprising a refractory-lined metallurgical vessel |
| 09/03/1985 | US4539043 Steel refining |
| 09/03/1985 | US4539042 Preventing an increase of the nitrogen content in molten steel |
| 09/03/1985 | US4538794 Sampling molten metal |
| 08/28/1985 | EP0152674A1 Process of making steel in converter using a great amount of iron-bearing cold material |
| 08/27/1985 | US4537629 From sponge iron |
| 08/27/1985 | US4537072 Arrangement for exchanging measuring and/or sampling probes |
| 08/21/1985 | EP0151970A1 Installation process for a converter bottom |
| 08/20/1985 | US4535975 Gas-transmitting wall element for a metallurgical vessel, a metallurgical vessel having such a wall element, and a method of producing steel |
| 08/14/1985 | EP0151499A2 Liquid-cooled lance for blowing oxygen onto a steel bath and method of operating the lance |
| 08/14/1985 | EP0151415A2 Direct current arc furnace or direct current arc ladle |
| 08/13/1985 | CA1191680A1 Liquid-cooled lance for blowing oxygen onto a steel bath |
| 08/07/1985 | EP0150484A2 Bottom electrode for direct current arc furnace |
| 08/07/1985 | EP0150483A2 Bottom electrode arrangement for an electric furance |
| 08/07/1985 | EP0150244A1 Process for producing steels from scrap contaminated by at least one of the elements chronium, copper, molybdenum and nickel |
| 08/06/1985 | US4533385 Method for producing metals, such as molten pig iron, steel pre-material and ferroalloys |
| 08/06/1985 | US4533125 Apparatus for guiding and changing immersion lances |
| 08/06/1985 | US4533124 Device for delivering gaseous and solid materials to a metal pool during a refining process |
| 07/30/1985 | US4532633 DC arc furnace improved hearth construction |
| 07/30/1985 | US4531973 Metallurgical processes |
| 07/30/1985 | US4531971 Loading pair of arc furnaces with scrap, inserting electrodes in one, adding oxygen containing gas and carbon, delivering hot exhaust gas to second, discharging molten iron, shifting electrodes to second, repeating |
| 07/24/1985 | EP0149440A2 Installation for maintaining oxygen-lancer for steel plant converters |
| 07/24/1985 | EP0149003A1 Blocking device for a converter |
| 07/23/1985 | US4530864 Porous ceramic structure |
| 07/17/1985 | EP0148492A1 Device for measuring the concentration of oxygen and temperature of molten metals during refining |
| 07/16/1985 | US4530102 Lancing in electric arc steelmaking |
| 07/16/1985 | US4530101 Electric arc fired cupola for remelting of metal chips |
| 07/16/1985 | US4529443 Supplying inert gas to bath |
| 07/16/1985 | US4529442 Supplying inert gas to bath |
| 07/10/1985 | EP0147964A2 Apparatus for measuring wear in the lining of refractory furnaces |
| 07/09/1985 | US4528673 Ladle furnace with DC heating |
| 07/09/1985 | US4528035 Composition and process to create foaming slag cover for molten steel |
| 07/03/1985 | EP0146696A1 Process for refining of chromium-containing molten steel |
| 07/02/1985 | US4526613 Forming alloy steel, loading into vessel, adding vanadium oxide, generating slag, adding aluminum or silicon, injecting oxygen with argon or nitrogen |
| 07/02/1985 | US4526531 Burner apparatus for smelting furnace |
| 07/02/1985 | US4526350 Waste gas collection device |
| 07/02/1985 | CA1189698A1 Method and apparatus for preventing the inclusion of slag into the molten steel tapped from a converter |
| 06/26/1985 | EP0146213A2 Burner assembly |
| 06/26/1985 | EP0146079A2 Gas-permeable refractory plug |
| 06/25/1985 | US4525209 Process for producing low P chromium-containing steel |
| 06/25/1985 | US4525139 Burner in a drum |
| 06/25/1985 | US4524958 Apparatus for closing the discharge aperture of a metallurgical vessel |
| 06/19/1985 | EP0144773A1 Installation for the desulfurisation of iron melts |
| 06/18/1985 | US4523747 Discharging molten metal from a smelting furnace |
| 06/12/1985 | EP0143947A2 Multistage process for preparing ferroboron |
| 06/11/1985 | US4522650 Add carbonaceous material to molten metal bath, add alloying elements |
| 06/11/1985 | US4522376 Gas flushing inlet arrangement in a metallurgical vessel and method of operation of such an arrangement |
| 06/11/1985 | CA1188519A1 Method of introducing addition agents into a metallurgical operation |
| 06/11/1985 | CA1188518A1 Metal refining processes |
| 06/05/1985 | EP0143498A2 Measurement and/or sampling device for liquid metal and the probe used thereby |
| 06/05/1985 | EP0143275A1 Device for preheating of scrap in an electric arc steel furnace |
| 06/05/1985 | EP0143242A1 Fixing equipment for vessels subjected to heat, especially for steel plant converters |
| 06/04/1985 | US4521226 Method of automatically controlling a dust-collecting plant |
| 05/28/1985 | US4519587 Apparatus for regulating the delivery of solid materials by a blowing lance |
| 05/23/1985 | WO1985002251A1 Charge forming preheating apparatus and method |
| 05/23/1985 | WO1985002203A1 Ld-converter with post combustion |
| 05/21/1985 | US4518422 Process and apparatus for refining steel in a metallurgical vessel |
| 05/15/1985 | EP0141803A1 Device for mounting or removing a mouth ring consisting of single segments of a tilting metallurgical vessel |
| 05/14/1985 | US4516757 Tiltable metallurgical converter having material carrying lines |
| 05/08/1985 | EP0140001A1 Process and device for the production of steel having an elevated degree of purity and a reduced gas content |
| 05/07/1985 | US4515630 Process of continuously treating an alloy melt |
| 05/07/1985 | CA1186504A1 Apparatus for building up and repairing a refractory lining |
| 05/02/1985 | EP0139311A1 Method for the manufacture of a magnesia-carbon brick, and a converter having a wear lining at least partly of such bricks |
| 04/30/1985 | US4514220 Decreasing ratio of oxygen and inert gas while maintaining constant gas flow beneath surfacxe |
| 04/30/1985 | US4514218 Reduced iron melting method using electric arc furnace |
| 04/24/1985 | EP0137961A1 Withdrawing device for a gas bubbling plug |
| 04/24/1985 | EP0137913A1 Process for decarburizing alloy melts |
| 04/23/1985 | US4512802 Process for the decarburization of molten metal |
| 04/23/1985 | US4512384 Continuous spray casting |
| 04/16/1985 | US4511397 Process for increasing the degree of afterburning of carbon monoxide in the refining of iron melts |
| 04/16/1985 | US4511396 Refining of metals |
| 04/02/1985 | US4508448 Apparatus for measuring the distance to a point on the inner wall of a hot furnace |
| 03/27/1985 | EP0135103A1 Direct current arc furnace |
| 03/27/1985 | EP0135050A2 Process of continuously treating an alloy melt |
| 03/27/1985 | EP0134857A1 Method for the fabrication of special steels in metallurgical vessels |
| 03/26/1985 | CA1184391A1 Method and device for recuperating combustible gas generated in a smelter oven |
| 03/26/1985 | CA1184383A1 Method for stably refining high carbon steel |
| 03/20/1985 | EP0134351A1 Recovery of vanadium oxide |
| 03/20/1985 | EP0134336A1 Continuous steelmaking and casting |
| 03/19/1985 | US4506370 Arc furnace installation with shroud |
| 03/14/1985 | WO1985001068A1 Extractor for a gas blow brick |
| 03/13/1985 | EP0133931A1 Cooling arrangement of a bottom electrode of a direct current arc furnace |
| 03/13/1985 | EP0133925A1 Bottom electrode arrangement for a direct current arc furnace |
| 03/12/1985 | US4504308 Method of operating a metallurgical plant |
| 03/12/1985 | US4504307 Method for carrying out melting, melt-metallurgical and/or reduction-metallurgical processes in a plasma melting furnace as well as an arrangement for carrying out the method |
| 03/12/1985 | CA1183766A1 Process for firing a furnace |
| 03/06/1985 | EP0133652A1 Protective device for a bottom electrode of a direct current arc furnace |
| 03/05/1985 | US4502670 Gas hook-up to a ladle |
| 02/13/1985 | EP0132876A1 Improvements to hoods for aspiration of secondary fumes in steel mills and foundries |
| 02/12/1985 | CA1182287A1 Oxygen lance |
| 02/05/1985 | US4497656 Carbonization of prereduced ironore;refining steel |
| 02/05/1985 | US4497475 Nozzle assembly for a metallurgical furnace |
| 02/05/1985 | CA1181950A1 Method of supplying pulverized fuel mixture to blast furnace tuyeres |
| 01/29/1985 | US4496369 Controlled pressurized system for producing synthesis gas and crude iron |
| 01/29/1985 | CA1181587A1 Method for making foundry vessel bottoms |
| 01/22/1985 | US4495625 Magnetic field stabilized transferred arc furnace |
| 01/22/1985 | US4494734 Slag retaining device for use during tapping of converters and method |
| 01/22/1985 | CA1181294A1 Flame gunning of refractory linings |
| 01/22/1985 | CA1181238A1 Method of gas production |