Patents
Sitemap › C21 - Metallurgy of iron › C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steel; Treatment in molten state of ferrous alloys › C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups
Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430)
09/1982
09/22/1982EP0060706A1 Method for removing slag on the surface of molten metal by suction
09/08/1982EP0059411A1 Apparatus for spreading covering material
09/07/1982CA1131032A1 Method for controlling the temperature of the melt during pneumatic refining of steel
08/1982
08/31/1982US4347078 Process and apparatus for the desulfurizing of iron melts
08/31/1982CA1130574A1 Method and apparatus for the removal of impurities from molten metal
08/31/1982CA1130569A1 Process for treating pig iron melts and steel melts or alloys
08/31/1982CA1130560A1 Lance pipe for refining and refining process of molten metal
08/04/1982EP0056944A2 Installation for injecting materials into a steel melt
08/04/1982EP0056942A2 Installation for the holding and changing of immersion lances
08/03/1982US4342590 Exothermic steel ladle desulfurizer and method for its use
07/1982
07/27/1982US4341554 Covering synthetic slag with particulate lime injecting powdered lime, crust, reactant, vaporization
07/20/1982US4340426 Additives for continuous casting of steel
07/20/1982US4340422 Powdery desulfurizer composition
07/20/1982US4340208 Refractory piece permeable to gases
07/14/1982EP0055953A1 Pulverulent refining composition for metallurgical vessels
07/13/1982CA1127610A1 Recovery of metal granules from process sludge
07/13/1982CA1127388A1 Apparatus for nitriding metal under pressure
06/1982
06/22/1982US4336411 Molten metal heating, stirring and casting apparatus
06/10/1982WO1982001892A1 Tuyere for blowing in powder-like materials into molten metal
05/1982
05/25/1982US4331711 Production of salt-coated magnesium particles
05/25/1982CA1124082A1 Method for introducing deoxy-desulphurizing substance into liquid metals without the use of gaseous carriers
05/19/1982EP0051746A1 Immersion lance for steel making purposes
05/18/1982US4330108 Method for cooling tuyeres
05/18/1982CA1123611A1 Method and apparatus for stirring molten metal
05/11/1982US4328958 Apparatus for stirring molten metal in container
04/1982
04/28/1982EP0050578A1 Apparatus for the treatment of a molten metal bath by gas injection
04/27/1982US4326886 Steel for cold forging having good machinability and the method of making the same
04/27/1982CA1122415A1 Synthetic flux for steel slag
04/13/1982US4324584 Supersonic flow of oxygen to expel slag and form oxides which are reduced by carbon in pig iron
04/13/1982CA1121602A1 Lime bearing agent for use in refining of ferrous melt
04/06/1982US4323392 Agent for desulfurizing crude iron and steel melts, and process for making it
04/06/1982CA1121163A1 Decarburization of metallic alloys
04/06/1982CA1121156A1 Sliding nozzle apparatus for blowing powdery treating agent
03/1982
03/23/1982US4321088 Process for treating pig iron melts and steel melts or alloys
03/16/1982CA1120085A1 Continuous treatment of molten metals
03/16/1982CA1119814A1 Method of melt dispersing a floatable solid additive in molten metal and a melt dispersible floatable, additive therefor
03/09/1982US4318822 Producing calcium carbide melt containing calcium oxide from lime and coke
03/09/1982CA1119413A1 Process and a device for the treatment of an iron melt
03/03/1982EP0046721A1 Nozzle for oxygen-injection lances used in the decarburisation of pig iron, in particular chromium pig iron
03/02/1982US4317679 Method and apparatus for the degassing of molten metal
03/02/1982US4317678 Calcium
02/1982
02/16/1982US4315774 Method of safely injecting oxygen reactive materials into a submerged oxygen gas stream
02/16/1982US4315772 Process for steel production and converter for carrying out the process
02/10/1982EP0045465A1 Raw flux mixture for the continuous casting of steel
01/1982
01/26/1982US4312668 Introducing nodularizing agent into cast iron
01/20/1982EP0044183A1 Metallurgical treatment agents
01/19/1982US4311518 Homogenization of metal using gas
01/13/1982EP0043787A1 Gas-permeable body of fire-resistant material
01/12/1982CA1115963A1 Method for the refining of steel
01/05/1982US4309025 Apparatus for carrying out metallurgical reactions in a ladle
01/05/1982CA1115759A1 Refining ferrous melt
12/1981
12/29/1981US4308415 Process for refining a molten metal and an apparatus therefor
12/29/1981US4308073 Pellets of graphite and carbon black and method of producing
12/29/1981US4308056 Method and apparatus for introducing solid substances into liquid metals
12/23/1981EP0042196A1 Apparatus for refining molten metal
12/23/1981EP0042033A1 Desulfurising agent
12/22/1981US4306904 Process of introducing a solid addition into a bath of liquid metal
12/16/1981EP0041680A1 Apparatus for introducing highly reactive substances to a molten-metal bath
12/01/1981US4303118 Apparatus for producing aluminum-deoxidized continuously cast steel
11/1981
11/18/1981EP0040044A1 Method for the manufacture of desulphurisation agents
11/17/1981CA1112457A1 Means for adding materials to a flowing stream of molten metal
11/10/1981US4299624 Molten metal treatment
11/03/1981US4298377 Accurate and simple, continuous processing
11/03/1981US4298376 Method for treating molten steel and apparatus therefor
11/03/1981US4298192 Method of introducing powdered reagents into molten metals and apparatus for effecting same
11/03/1981US4298187 Apparatus for inline degassing and filtration of molten metal
11/03/1981CA1111745A1 Deoxidation of steel
11/03/1981CA1111657A1 Elongate consolidated article and method of making
10/1981
10/28/1981EP0038608A1 Apparatus for refining molten metal
10/27/1981US4297133 Using a wound paper tube
10/27/1981US4296921 Winding a tape or cloth comprising inorganic fibers impregnated with a binder and refractory particles; shockproof
10/27/1981US4296920 Molten metal treatment
10/21/1981EP0037959A1 Method of reducing or avoiding surface defects in a specific steel resistant to concentrated nitric acid
10/20/1981US4295883 Suction, cones, jets, channels
10/13/1981US4294611 Process and apparatus for reducing the inclusion content of steels and for refining their structure
10/13/1981CA1110455A1 Desulphurisation of metals
10/06/1981CA1110078A1 Method and apparatus for the refining of melts by means of a pulverous solid material and/or a gas
09/1981
09/22/1981US4291070 Metallic powders coated with ceramic layer
09/22/1981US4290809 Raw mix flux for continuous casting of steel
09/22/1981US4290588 Apparatus for refining molten aluminum
09/15/1981US4289533 Aluminum and yttrium, causing any oxide inclusions to be spherical rather than dendritic
09/08/1981CA1108400A1 Tuyere for blowing gas into molten metal
09/02/1981EP0034994A1 Composite product of a tubular envelope and a core of compacted pulverulent material and its manufacturing method
09/02/1981EP0034639A1 Synthetic flux for steel slag
09/01/1981US4286984 Compositions and methods of production of alloy for treatment of liquid metals
09/01/1981US4286774 System for automatically injecting a measured quantity of powdered reagent into a pool of molten metal
09/01/1981US4286646 Method for inoculating or refining metal melts
09/01/1981CA1108269A1 Molten metal level indication in receptacles
08/1981
08/26/1981EP0034379A1 Process for protecting the metal in metallurgical vessels, and material for carrying out this process
08/19/1981EP0033780A1 Method for preventing slopping during subsurface pneumatic refining of steel
08/18/1981CA1107080A1 Submerged injection of gas into liquid pyro- metallurgical bath
08/18/1981CA1107075A1 Elongate composite article
08/11/1981CA1106621A1 Method for producing improved metal castings by pneumatically refining the melt
08/11/1981CA1106600A1 Gas-dynamic stirring of liquid molten metals
08/06/1981WO1981002166A1 Method of making steel
08/06/1981WO1981002165A1 Device for treatment of molten metal with gases and powder-like materials
08/05/1981EP0033289A1 Process for the decarburisation of chromium containing melts
07/1981
07/29/1981EP0032874A2 Cored composite wire for introducing additives into a metal bath
07/22/1981EP0032343A1 Method for the gaseous stirring of a molten metal bath
07/21/1981US4279643 Magnesium bearing compositions for and method of steel desulfurization
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