Patents
Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381)
02/1986
02/26/1986EP0172785A1 Metallurgical vessel
02/25/1986US4572482 Fluid-cooled metallurgical tuyere
02/18/1986CA1200692A1 Permeable refractory element for the injection of a stirring fluide into a molten metal bath
02/12/1986EP0170900A1 Process for the removal of contaminating elements from pig- iron, steel, other metals and metal alloys
02/11/1986US4569508 Metallurgical vessel having an opening and a flange around the opening
02/11/1986US4569237 Method of sampling molten metal
02/11/1986CA1200383A1 Method for protecting tuyeres for refining a molten iron
02/05/1986EP0046811B1 Process for recovering co-rich off-gas in metal smelting
02/04/1986US4568386 Process for purifying metals by insufflation and product produced thereby
02/04/1986CA1200095A1 Gas blowing nozzle, and production and usage thereof
01/1986
01/30/1986WO1986000695A1 Device for the injection of gases into molten metals and minerals
01/28/1986US4566343 Sampling and/or measuring apparatus for immersion in molten metal
01/22/1986EP0169100A1 Wall electrode of a metallurgical vessel in contact with a melted metal
01/21/1986US4566108 Bottom-electrode arrangement for a direct-current arc furnace
01/21/1986US4565355 Flushing arrangement for a metallurgical vessel
01/21/1986CA1199702A1 Process for the decarburization of molten metal
01/21/1986CA1199504A1 Process and device for refining molten metal containing coolant solids
01/21/1986CA1199500A1 Method and apparatus for pneumatic feeding of additives into converters
01/21/1986CA1199499A1 Refining of ferrochromium metal
01/15/1986EP0167915A1 Reactor iron making
01/15/1986EP0167895A1 Process and installation for the production of steel from scrap
01/14/1986US4564951 Cooling arrangement of a bottom electrode for a direct-current arc furnace
01/14/1986US4564950 Guard arrangement for a bottom electrode of a direct-current arc furnace
01/14/1986US4564390 Decarburizing a metal or metal alloy melt
01/14/1986US4564388 Method for continuous steelmaking
01/14/1986US4563958 Furnace charge preheater
01/08/1986EP0167515A1 Electric furnace
01/08/1986EP0167037A1 Bottom electrode for pouring ladles
01/08/1986EP0063569B1 Method for the production of steel in a basic iconverter using slag
01/07/1986CA1198900A1 Method and apparatus for treating liquid metal in a vessel
01/02/1986EP0166646A1 Installation for the production of steel by preliminary refining of pig iron
12/1985
12/31/1985US4561638 Installation with a refractorily lined metallurgical vessel
12/31/1985US4561637 Process and apparatus for heating a steel bath charged with scrap
12/31/1985US4561466 Valve for supplying flow media
12/31/1985CA1198571A1 Monolithic refractory layer for metallurgical vessels and method of application
12/24/1985US4560406 Aluminum as reducing agent and calcium oxide as slag forming agent to allow simultaneous reduction and desulfurization
12/24/1985US4560314 Magazine arrangement for measuring and/or sampling probes
12/18/1985EP0165198A2 Lance for accelerating solid particles
12/18/1985EP0164878A2 Method of operating metallurgical furnace
12/17/1985US4559629 Procedure and means for preheating scrap to be charged into a smelting furnace
12/17/1985US4558791 Furnace delining apparatus
12/17/1985CA1197985A1 Method of treating ferrous metal
12/17/1985CA1197971A1 Metallurgical vessel having an opening and a flange around the opening
12/11/1985EP0164331A2 Arrangement for cleaning the lance head of a lance introducible into a metallurgical vessel
12/11/1985EP0163784A1 Two stage deoxidation process in steel-making
12/10/1985US4557758 Steelmaking process
12/10/1985CA1197689A1 Process for making steel from direct-reduced iron
12/10/1985CA1197681A1 Metallurgical vessel
12/04/1985EP0162949A1 Method and apparatus for measuring slag-forming conditions within converter
11/1985
11/27/1985EP0162679A1 Composition and process to create foaming slag cover for molten steel
11/26/1985US4555267 Making steel from scrap
11/26/1985CA1197289A1 Probe and a system for detecting wear of refractory wall
11/26/1985CA1197096A1 Porous plug for molten metal vessel
11/21/1985EP0161950A1 Installation and process for the continuous charging of a reactor vessel with solids, preheated by the waste gases of the reactor vessel
11/19/1985US4553743 Elevated device for placing slag retention means in tapping converters
11/13/1985EP0160690A1 Ld-converter with post combustion
11/12/1985US4552587 Method of operating ladle refining furnace
11/12/1985US4552343 Combination electric furnace and slag retaining pouring spout
11/12/1985US4552342 Method and apparatus for preheating and charging scrap in steelmaking
11/12/1985US4552334 Flow change-over valve for the blowing of fluids into molten metal vessel
11/10/1985CN85100842A Swirl coaldust-oxygen gun for intensifying electric furnace smelting
11/07/1985WO1985004905A1 Process for controlling slag chemistry in a refining vessel
11/06/1985EP0160376A2 Method for producing steel in a top oxygen blown vessel
11/06/1985EP0160375A2 System and method for producing steel in a top-blown vessel
11/06/1985EP0160374A2 Method for producing steel in a top-blown vessel
11/06/1985EP0160185A1 Tiltable metallurgical furnace vessel
11/05/1985US4551175 Method for controlling slag chemistry in a refining vessel
11/05/1985US4551174 Method of refining molten steel by arc process
11/05/1985US4551173 Method for adjusting composition of molten steel in arc process
11/05/1985US4550898 Air cooled refractory lance
10/1985
10/30/1985EP0159971A1 A blast pipe
10/30/1985EP0159517A1 Rapid decarburization steelmaking process
10/29/1985US4550413 Symmetrical current conductor system for a DC arc furnace
10/23/1985EP0158937A1 Method to obtain a regular erosion of the walls of a direct current arc furnace, and furnace for executing this method
10/23/1985EP0158803A2 Installation for lining metallurgical vessels, especially steel plant converters
10/23/1985EP0158762A1 Production of alloy steels using chemically prepared V2O3 as a vanadium additive
10/22/1985US4549301 Direct-current electric-arc furnace and method of operating same
10/22/1985CA1195507A1 Production of steel
10/15/1985CA1195363A1 Gas-entrained particulate
10/15/1985CA1195123A1 Method for the recovery of iron units from flue dust generated in a steel making process
10/09/1985EP0157104A1 Method and apparatus for the heating and melting of materials
10/08/1985US4545815 Injection oxygen under vacuum
10/08/1985US4545786 Apparatus for gasifying solid carbonaceous materials
10/02/1985EP0156706A1 Process for refining metals by injection
10/02/1985EP0156126A2 Hearth, in particular for a DC arc furnace
10/01/1985US4544405 Decarbonization in convertor before ladle treatment
10/01/1985US4543838 Arrangement for exchanging measuring and/or sampling probes
10/01/1985CA1194302A1 Gas injection nozzle for metallurgy converter
09/1985
09/26/1985WO1985004193A1 Production of alloy steels using chemically prepared v2o3 as a vanadium additive
09/24/1985US4543125 Process of making steel in converter using a great amount of iron-bearing cold material
09/24/1985US4543124 Apparatus for continuous steelmaking
09/24/1985CA1193843A2 Method of preparing a vessel for treatment of liquid metal therein
09/18/1985EP0155255A2 A flushing arrangement for a metallurgical vessel
09/17/1985US4541865 Continuous vacuum degassing and casting of steel
09/17/1985US4541863 Method for the treatment of phosphuretted slag
09/17/1985US4541659 Permanently sealed threadless joint
09/17/1985US4541617 Lance structure for oxygen-blowing process in top-blown converters
09/17/1985CA1193442A1 Steelmaking
09/11/1985EP0154016A1 Part consisting of refractory material
09/10/1985US4541099 DC Arc furnace improved hearth construction