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 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381)
12/2003
12/18/2003US20030230163 Method of and plant for producing products from carbon or stainless steel
12/18/2003CA2488061A1 Refining ferroalloys
12/17/2003EP1370501A1 Method for oxidizing treatment of steel plant slag to obtain cement-based materials
12/17/2003EP1230404B1 Method and use of calcium nitrate for foaming of steel-making slags
12/17/2003CN2592653Y Split converter fire door water tank
12/17/2003CN1461813A Steelmaking method using molten iron as carburant
12/16/2003US6663825 Method and apparatus for installing or replacing a furnace tap hole insert
12/11/2003US20030227112 Metal making lance with disposable sensors
12/10/2003CN1461351A Apparatus for injecting gas into vessel
12/09/2003US6660220 Apparatus and method for delivering an inert gas to prevent plugging in a slide gate
12/09/2003CA2173877C Bottom electrode for a metallurgical vessel
12/03/2003CN1460124A Method and device for preventing slag from flowing along when tapping molten metal
12/03/2003CN1459584A Coherence jet system with single enveloped flame ring
12/03/2003CN1459509A Oxygen gun repairing device
11/2003
11/27/2003WO2003097882A1 Continuous steelmaking process in an eaf and plant slag composition for use therein
11/27/2003CA2525655A1 Metallurgical slag
11/26/2003EP1365201A1 Melting crucible and method
11/26/2003EP1365193A2 Coherent jet system with single ring flame envelope
11/26/2003CN2587879Y Slag stopper for converter
11/25/2003CA2178613C Submerged arc furnace with vertically movable frame
11/20/2003WO2003095685A1 Scrap charger
11/20/2003US20030213575 Melting crucible and method
11/20/2003US20030213337 Continuous steelmaking process and plant and slag composition for use therein
11/19/2003CN1457368A Blowing lance nozzle
11/13/2003US20030212505 System for a non-invasive online continuous measurement of phase levels in converters or pyrometallurgical furnaces
11/13/2003US20030212503 System for a non-invasive online continuous measurement of phase levels in converters or pyrometallurgical furnaces
11/13/2003US20030212502 System for a non-invasive online discrete measurement of phase levels in converters or pyromet allurgical furnaces
11/13/2003US20030209846 System for elimination of accretions in air blowing tuyeres in Converters or pyrometallurgical furnaces
11/13/2003US20030209845 Mechanical waves generator system in a converter or pyrometallurgical furnace
11/13/2003US20030209844 Mechanical waves generator system in a converter or pyrometallurgical furnace
11/13/2003US20030209843 Mechanical waves generator system in a converter or pyrometallurgical furnace
11/06/2003WO2003091461A1 Injection of solids into liquids by means of a shrouded supersonic gas jet
11/06/2003WO2003091460A1 Lance for injecting particulate material into liquid metal
11/06/2003WO2002079529A8 Method for direct metal making by microwave energy
11/06/2003CA2483148A1 Injection of solids into liquids by means of a shrouded supersonic gas jet
11/05/2003CN2584612Y Slag plug with slag plate
11/05/2003CN1453370A Slag retaining cone for converter tapping
10/2003
10/30/2003WO2003089676A2 Iterative cycle process for carbon supersaturation of molten metal and solid metals obtained thereby
10/30/2003DE10252276C1 Metallurgical melting apparatus used as an electric furnace comprises a refractory ceramic lining through which extends a nozzle arrangement for introducing a fluid into a molten metal
10/29/2003CN1452666A Method and apparatus for delivering metallurgically improved molten metal
10/29/2003CN1451767A End point controlling process for smelting low carbon steel in electric furnace
10/23/2003WO2003087688A1 Method for production of molten metal in an electric furnace
10/23/2003US20030197313 Elevated discharge gas lift bubble pump and furnace for use therewith
10/22/2003EP1224336B1 Method and apparatus for injecting gases or solids into the bottom of a metallurgical bath
10/22/2003CN2581460Y Water-gas rotary joint for converter
10/22/2003CN1450177A Top oxygen gun blowing technology for electric furnace steel making
10/21/2003US6636055 Multifrequency equipment for sensing the state of electrodes in electric-arc furnaces
10/21/2003US6635096 Method for optimizing the operating conditions of a submerged arc furnace
10/16/2003WO2003085141A1 Method and device for producing carbon steels or stainless steels by blowing high-phosphorus pig iron in an electric arc furnace or in a converter vessel
10/16/2003WO2003085140A1 Method and installation for producing stainless steel, especially high-quality steel containing chromium or nickel chromium
10/16/2003WO2003025486A3 Furnace taphole drill
10/16/2003US20030193986 Apparatus for arc-melting cold iron source and method thereof
10/16/2003US20030192405 Steel mill thermal energy recovery for calcination
10/15/2003EP1242781B1 Method for operation of a smelting furnace
10/15/2003CN1448529A High-purity ferroboron, a mother alloy for iron-base amorphous alloy, an iron-base amorphous alloy, and methods for producing the same
10/14/2003US6632395 High-strength, austenitic, stainless steel,
10/09/2003WO2003083372A1 Method for oxygen doping using a pulsed combustion
10/09/2003WO2003083144A1 Method for treating alloyed carbonic iron smelts used for the production of steel
10/09/2003WO2003004198A3 Method and apparatus for metal pouring
10/08/2003CN1123410C Purge plug
10/07/2003US6630099 Facilitates continuous melting while retaining the options of discharging product by continuously, also facilitates high heat transfer rate throughout the reaction zones and avoids localized overheating or undercooling
10/02/2003WO2003080885A1 Cast piece and sheet of ferritic stainless steel, and method for production thereof
10/02/2003US20030183041 High- purity ferroboron by using inexpensive mass-produced steel as a base iron; and producing a mother alloy for an iron-base amorphous alloy and an iron-base amorphous alloy, the alloys having excellent properties, by using the
10/01/2003EP0913487B1 Method for vacuum/reduced-pressure refining and facility for vacuum/reduced-pressure refining
10/01/2003CN2576719Y Suspended slag-baffling-cork (rod dart) throwing device
09/2003
09/30/2003US6627256 Blowing gas to splash molten slag, controlling lance height, combining with slag solidifier of calcium or magnesium oxide, controlling height of slag splashing, covering uniformly
09/30/2003US6627146 Stopper module device for a casting machine furnace apparatus
09/30/2003CA2083800C Process for the preparation of an iron containing cooling agent used in a steel mill converter and cooling agent thereof
09/25/2003US20030178186 Blowing lance nozzle
09/24/2003CN2575108Y Heat treatment technological apparatus for vehicle crankshaft normalization
09/24/2003CN1443866A Production process of aluminium-containing steel
09/18/2003WO2003076858A1 Control of refractory wear
09/17/2003CN1443434A 感应炉 Induction furnace
09/16/2003CA2322676C Gas and powder delivery system
09/12/2003WO2003074741A1 Method for the production of stainless steel, particularly high-grade steel containing chrome or chrome nickel
09/10/2003EP1341738A1 Fire-resistant substance and method for producing a fire-resistant lining
09/10/2003CN1120890C Cutting blade for tap hole enlarger of steelmaking converter
09/04/2003US20030164062 Melting charged steel raw material, iron carrier, characterised in that at least 5 weight-%, preferably at least 10 weight-%, of charged iron carrier consists of granulated pig iron
09/03/2003EP1340823A1 Converter oxygen blowing method and upward blowing lance for converter oxygen blowing
09/03/2003EP1340563A2 Ladle equipped with gas-blowing device having accumulator cylinder
09/03/2003EP1340018A1 Method of combustion and impulse current controlled fuel/oxygen lance
09/03/2003CN2570719Y Block-proof material type gunning refractory chamber
09/03/2003CN1120243C Hot loading process of molten iron in electric furnace
09/02/2003US6614831 Mounting arrangement for auxiliary burner or lance
08/2003
08/28/2003WO2003070990A1 Method for deep decarburisation of steel melts
08/28/2003WO2003070989A1 Converter used in the magnesium treatment of cast iron melts
08/28/2003WO2003070651A1 Facility for melting dusts
08/27/2003EP1337800A1 Cooling element
08/27/2003EP1337679A1 Grain-refined austenitic manganese steel casting having microadditions of vanadium and titanium and method of manufacturing
08/27/2003EP1337671A1 Method and apparatus for treatment of metallurgical slag and the like
08/27/2003EP1252347B1 Method for removing chrome and/or nickel from liquid slags
08/27/2003EP0988259B1 Process for making expanded slag
08/27/2003CN2569075Y Water cooling carbon/oxygen gun
08/21/2003WO2003068996A1 Model-based system for determining process parameters for the ladle refinement of steel
08/21/2003WO2003068995A1 Method and device for the continuous production of steel using metal charge material
08/21/2003US20030154819 Model-based system for determining process parameters for the ladle refinement of steel
08/20/2003EP1252346B1 Method for reprocessing dust or dust mixtures
08/20/2003CN2567232Y Large converter high-efficient reamer
08/19/2003US6607577 Desulphurization reagent control method and system
08/19/2003CA2263963C Smelting installation with an electric-arc furnace
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