Patents for C21C 1 - Refining of pig-iron; Cast iron (3,137)
03/1985
03/26/1985US4507149 Rare earth compounds reacted with hydrogen sulfide
03/26/1985CA1184385A1 Desulfurization mixture and process for making it
03/26/1985CA1184384A1 Process for making agents for desulfurizing crude iron or steel melts
03/20/1985EP0134351A1 Recovery of vanadium oxide
03/19/1985US4505747 Stabilizing inoculent for gray iron
03/19/1985CA1184040A1 Method of and tiltable ladle for the treatment of cast iron melt
02/1985
02/19/1985US4500352 Production of cast iron
02/05/1985US4497661 Coke, coal, magnesia, and polymeric crosslinked reaction product
01/1985
01/30/1985EP0132368A1 Pouring tank transfer assembly
01/29/1985US4496393 For introducing magnesium into metal melt
01/16/1985EP0131271A1 Agent for treating cast iron, and method for its production
01/16/1985EP0131092A2 Process for producing vermicular graphite cast iron
01/15/1985US4493359 Method for making cast iron engine blocks and the like
12/1984
12/12/1984EP0128131A1 Sulphur removing method during pig iron melting
12/06/1984WO1984004760A1 Tough, wear- and abrasion-resistant, high chromium hypereutectic white iron
12/05/1984EP0126847A1 Ceramic filter
11/1984
11/27/1984US4484731 Method and apparatus for continuously treating molten metal
11/14/1984EP0124890A1 Process and installation for producing steel
11/06/1984US4481032 Feeding wire through refractory lance
10/1984
10/16/1984CA1176060A1 Method for adding unalloyed magnesium metal to molten cast iron
10/09/1984US4475956 Casting iron alloy containing silicon, carbon, manganese, and nickel, forming graphite nodules upon solidification, and heat treatment
09/1984
09/26/1984EP0119937A1 Supersonic oxygen-injection lance for the decarburisation of pig iron, in particular chromium-containing pig iron
09/25/1984US4473398 Method for desulfurizing a molten iron by injection
09/25/1984CA1174830A1 Apparatus for treating molten cast iron
09/18/1984US4472197 Silicon, rare earth, magnesium, iron, carbon
09/04/1984US4469511 Removing phosphorus from iron
08/1984
08/22/1984EP0116221A1 Apparatus for and method of desulfurizing and heating molten metal
08/16/1984WO1984003056A1 Porous ceramic filter body and manufacturing method thereof
08/07/1984US4464198 Cast iron nodularization
08/01/1984EP0114376A1 Process for limiting interactions between liquid metal and atmosphere
07/1984
07/31/1984CA1171663A1 Desulphurising agent
07/03/1984US4457778 Desiliconization, dephosphorization, decarburization
07/03/1984US4457775 Magnesium oxide as dispersant
06/1984
06/26/1984US4456477 Production of ultra-low phosphorus steel
06/20/1984EP0110904A1 Device for casting, particularly converter for casting and/or post-treating molten metal.
06/13/1984EP0110508A1 Method for desulfurizing a molten iron by injection
06/13/1984EP0041953B1 Production of vermicular graphite cast iron
06/12/1984CA1168876A1 Powdery desulfurizer composition
06/12/1984CA1168875A1 Powdery desulfurizer composition
05/1984
05/29/1984CA1168040A1 Technique for conserving hot metal temperature
05/23/1984EP0109153A1 Calcium oxide based flux compositions
05/22/1984US4450004 Dephosphorization and desulfurization method for molten iron alloy containing chromium
05/08/1984US4447046 Apparatus for adding strongly reacting materials into a melt
04/1984
04/24/1984CA1166018A1 Steelmaking process with separate refining steps
04/04/1984EP0104841A1 Removing phosphorous from iron
04/04/1984EP0104392A1 Method of producing nodular iron and a machine for the implementation thereof
03/1984
03/21/1984EP0103313A1 Transportable vessel for molten iron
03/13/1984US4436142 Method and apparatus for making ductile iron castings
02/1984
02/28/1984CA1162746A1 Method for the addition of a reactive metal to a molten metal bath
02/22/1984EP0100869A1 Method of lowering the titanium and aluminium content of block iron
02/21/1984US4432793 Ferroalloy for the treatment of cast metals and process
02/21/1984US4432536 Molten iron containing vessel with improved refractory lining
02/14/1984US4431444 Adding fine fluorspar; antideposit and-sticking agents
02/07/1984US4430123 Iron melt sulfur determination, rare earth metal or calcium, fluxes
02/07/1984US4430118 Calcium carbide, calcium carbonate, carbon, iron melts, flotation, air sifting
02/07/1984CA1161650A1 Desulphurising agent
01/1984
01/10/1984US4424957 Hot metal car heat retention shield
01/10/1984US4424956 Drapable, consumable, heat retention shield for hot metal cars
12/1983
12/22/1983WO1983004419A1 Device for casting, particularly converter for casting and/or post-treating molten metal
12/20/1983US4421551 Melt of alkali metal chloride
12/13/1983US4420333 Powdery desulfurizer composition
11/1983
11/30/1983EP0029038B1 Product for the desulphurization of cast irons and steels
11/22/1983CA1157277A1 Production of vermicular graphite cast iron
11/15/1983US4415362 Nodular iron making and/or storing
11/15/1983US4415359 Multi-step steelmaking refining method
11/15/1983US4415358 Method of desulfurizing a ferrous melt
11/10/1983WO1983003848A1 Magnesium ferrosilicon alloy and use thereof in manufacture of nodular cast iron
11/08/1983US4414027 Method for obtaining iron-based alloys allowing in particular their mechanical properties to be improved by the use of lanthanum, and iron-based alloys obtained by the said method
11/08/1983US4414025 Process for addition of silicon to iron
11/01/1983US4412578 Apparatus for treating molten cast iron
10/1983
10/25/1983US4411696 Steelmaking process with separate refining steps
10/25/1983CA1155688A1 Master alloys containing lanthanum
10/19/1983EP0091696A1 Drapable, consumable, heat retention shield for hot metal cars
10/11/1983US4409028 Carbon dioxide and a nodularizer to control graphite content
10/05/1983EP0090654A2 Alloy and process for producing ductile and compacted graphite cast irons
10/05/1983EP0090653A2 Processes for producing and casting ductile and compacted graphite cast irons
10/04/1983CA1154596A1 Desulfurizing agent and process for its manufacture
08/1983
08/24/1983EP0086549A1 Apparatus and process for the treatment of molten metal
08/23/1983US4400292 Process for making agents for desulfurizing crude iron or steel melts
08/23/1983CA1152335A1 Desulphurisation of ferrous melts
08/17/1983EP0086003A1 Method of operating a mixer type hot metal car for the transport of molten iron and a device for carrying out the method
08/16/1983US4398946 Method of homogenizing cast iron melts and compacts for the carrying out thereof
08/09/1983US4397683 Desulfurization of fluid materials
08/02/1983US4396428 Magnesium
08/02/1983US4396427 Graphite spheres
07/1983
07/26/1983US4395282 Calcium carbide, calcium oxide
07/26/1983US4395281 Electromagnetically stirring
07/19/1983US4394165 Method of preliminary desiliconization of molten iron by injecting gaseous oxygen
07/19/1983CA1150058A1 Product for desulfurizing cast irons and steels
07/12/1983US4392887 Covering with lime, deoxidation, blowing lime, aluminum and calcium fluoride in inert gas
07/05/1983US4391633 Process for dephosphorization, desulfurization and denitrification of chromium-containing pig iron
06/1983
06/28/1983US4390362 Method and apparatus for out-of-furnace treatment of cast iron
06/28/1983US4390170 Closure plug for ladle car
06/21/1983US4389360 Method of forming a protective coating on a long lance to be immersed in molten metal
06/14/1983US4388112 Desiliconizing, dephosphorizing, decarburizing, and desulfurizing
06/14/1983CA1147967A1 Method for introducing deoxy-desulphurizing substances into the mass of liquid metals without the use of gaseous carriers
05/1983
05/24/1983US4385030 Magnesium ferrosilicon alloy and use thereof in manufacture of modular cast iron
05/24/1983US4384887 Process of making salt-coated magnesium granules
05/11/1983EP0078277A1 Immersion and vaporization chamber
05/03/1983US4381855 Technique for conserving hot metal temperature
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