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)
10/2003
10/28/2003US6638471 Water cooled vessel for vacuum processing liquid steel
10/28/2003US6638337 Method of introducing additives in steelmaking
10/23/2003US20030197315 Apparatus for treating molten metal having a sealed treatment zone
10/23/2003US20030197313 Elevated discharge gas lift bubble pump and furnace for use therewith
10/22/2003CN1450178A Composite manganese base deoxidized alloy
10/16/2003WO2003085140A1 Method and installation for producing stainless steel, especially high-quality steel containing chromium or nickel chromium
10/15/2003EP1242781B1 Method for operation of a smelting furnace
10/15/2003CN2579908Y Core-coated aluminium wire
10/15/2003CN2579907Y Decopperizing device for molten steel under electric field
10/14/2003US6632395 High-strength, austenitic, stainless steel,
10/09/2003WO2003083145A1 Method for feeling steel
10/09/2003WO2003083144A1 Method for treating alloyed carbonic iron smelts used for the production of steel
10/08/2003CN1446929A Method for removing sulfur, phosphorus impurities in metal molten mass
10/08/2003CN1123410C Purge plug
10/02/2003WO2003080885A1 Cast piece and sheet of ferritic stainless steel, and method for production thereof
10/02/2003US20030185699 Adding calcium to the melt to deoxidize to minimize inclusion formation; adding aluminum to increase the aluminum content of to more than 0.5 weight percent; and casting the melt;
10/01/2003EP0913487B1 Method for vacuum/reduced-pressure refining and facility for vacuum/reduced-pressure refining
10/01/2003CN1122721C Aluminium-manganese-titanium-magnesium-iron alloy for deoxygenation and alloy for steelmaking
10/01/2003CN1122720C Aluminium-magnesium-titanium-iron alloy for deoxygenation and alloy of steel production
09/2003
09/25/2003US20030178186 Blowing lance nozzle
09/25/2003US20030177864 Method for manufacturing hot metal desulfurizing agent and apparatus for same
09/24/2003CN2575577Y Engineering mechanical hydraulic oil automatic radiator
09/24/2003CN1443866A Production process of aluminium-containing steel
09/24/2003CN1443858A Si-Ba-Mn-Fe alloy for steel-smelting deoxidation and alloying
09/24/2003CN1443857A Si-Ba-Ca-Mn-Fe alloy for steel-smelting deoxidation and alloying
09/23/2003CA2200666C Well brick of vessel for molten metal
09/18/2003US20030172773 Degassing a refined molten steel produced in an arc melting furnace or a converter to a ladle furnace ; casting into an ingot; tapping deoxidation; deoxidizer including manganese, aluminum, and silicon
09/17/2003CN1442493A Silicon barium calcium magnesium iron alloy used for steelmaking deoxygenation
09/17/2003CN1442492A Manganese aluminium composite deoxidant
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
09/10/2003EP1342798A1 Process for producing high-nitrogen ultralow-carbon steel
09/10/2003CN1441068A Molten mixed slag for refining and desulfurizing steel
09/10/2003CN1441067A Steel making MnAlTiFe alloy with microcomponent Si and Low C,P and S contents
09/10/2003CN1441066A Slagging aluminium ball and its making process
09/10/2003CN1440952A Refractory cast material for desulfurizing gunite
09/10/2003CN1120891C Multi-component Si-Ca-Ba deoxidizer and desulfurizer for steel smelting
09/03/2003EP1340563A2 Ladle equipped with gas-blowing device having accumulator cylinder
09/03/2003EP1339889A1 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME
09/03/2003CN2570299Y Closed type powder injecting equipment having alarm control function
09/03/2003CN1439729A Liquid iron pretreatment blowing slag forming process
09/03/2003CN1439728A Al-Ca-Fe alloy for final deoxidisation of molten steel and its preparation
09/03/2003CN1439727A Al-Ca-Mg-Fe alloy for final deoxidisation of molten steel and its preparation
08/2003
08/28/2003WO2003070990A1 Method for deep decarburisation of steel melts
08/28/2003WO2002042501A3 Metal jacket for aluminium ingot which is used as deoxidising agent for steel
08/27/2003EP1337679A1 Grain-refined austenitic manganese steel casting having microadditions of vanadium and titanium and method of manufacturing
08/27/2003EP1248861B1 Method for treating steel plant slag
08/27/2003CN1438349A Method for producing rare-earth metal screw-rod
08/21/2003WO2003068996A1 Model-based system for determining process parameters for the ladle refinement of steel
08/21/2003US20030154819 Model-based system for determining process parameters for the ladle refinement of steel
08/20/2003CN2566960Y Rare-earth core-spun yarn for continuous metal casting
08/20/2003CN1437657A Hardened Fe-Ni alloy for making integrated circuit grids and method for making same
08/20/2003CN1436863A Composite deoxygenated AlMnTiMg alloy
08/19/2003US6607577 Desulphurization reagent control method and system
08/13/2003CN1436250A Method and apparatus for producing desulfurizing agent for hot-metal
08/13/2003CN1435495A Method for pretreating blast furnace melted iron to desiliconize
08/12/2003US6605163 Process for manufacturing a strip made of an Fe-Ni alloy
08/12/2003US6604937 Coherent jet system with single ring flame envelope
08/06/2003EP1332232A1 Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel
08/06/2003EP1141422B1 Method for denitriding molten steel during its production
08/06/2003CN2564586Y Automatic argon blowing device
08/06/2003CN1434145A Method for producing continuous casting alloy steel containing S and Al
08/06/2003CN1434135A Blowing purifying method for casting ladle
08/06/2003CN1434134A Aluminium-iron alloy for finished deoxidation of melton steel in steelmaking and preparation method thereof
08/06/2003CN1117162C Refining agent for refractory stainless steel
07/2003
07/31/2003US20030140732 Method for treating slags or slag mixtures on an iron bath
07/30/2003EP1331278A1 Refining agent and refining method
07/30/2003EP1252343B1 Method for treating slags or slag mixtures on an iron bath
07/30/2003CN1433484A High cleanliness steel and process for producing the same
07/30/2003CN1433483A Porous agglomerates containning iron and at least one further element from groups 5 or 6 of the periodic table for use as alloying agent
07/30/2003CN1116422C Coherent jet injector lance
07/29/2003US6599464 Steelmaking lance with integral temperature probe
07/24/2003US20030139638 Horizontally adding lime, optional additives, fuels and carrier gases, inert iron metallurgy slag
07/24/2003US20030138343 In percent by mass, carbon: 0.1-0.6%, silicon: 0.01-2.0%, manganese: 0.2-2.0%, sulfur: 0.005-0.2%, aluminum: not more than 0.009%, titanium: 0.001-0.04%, calcium: 0.0001-0.01%, oxygen: 0.001-0.01%, nitrogen: less than 0.02%; machinability
07/23/2003CN1431324A Silico calcium barium strontium ferroalloy compound deoxidant
07/22/2003US6596227 Lead-free; particles of sulfide-type inclusions with major axes in a specific range have a controlled aspect ratio, limited coarse particles; alloying with aluminum-free magnesium alloy
07/22/2003CA2268623C High ductility very clean non-micro banded die casting steel and method of manufacture thereof
07/17/2003US20030131914 Steel plate to be precipitating tinfor weleded structures, method for manufacturing the same, welding fabric using the same
07/17/2003DE10164610C1 Producing a steel melt comprises melting a process material into a melt, deoxidizing the melt with aluminum, adding manganese and silicon to the deoxidized melt, and treating the melt
07/16/2003CN1430679A Apparatus for injecting solid particulate material into vessel
07/09/2003EP1325161A1 Blowing lance nozzle
07/08/2003CA2232215C Method for introducing gas into a liquid
07/03/2003US20030121577 Mixture containing titanium, zirconium nitrides precipitates; heating, controlling temperature
07/02/2003EP1323837A1 Steel product made from carbon steel particularly for galvanisation and process for manufacturing the same
07/02/2003EP1234061B1 Apparatus and process to extract heat and to solidify molten material particles
07/02/2003EP1114191A4 A direct smelting process
06/2003
06/26/2003US20030116232 Continuous processing; casting strips, sheets
06/25/2003CN1425780A Refining desulfurizing dreg system and desulfurizing process for producing extremely low sulfur steel
06/25/2003CN1112456C Molten iron treating agent and its application
06/19/2003US20030113223 Free-cutting steel for machine structural use having good machinability in cutting by cemented carbide tool
06/19/2003US20030111778 Gas blowing plug and manufacturing method therefor
06/19/2003US20030110886 Reducing chromium oxide with silicon to obtain a molten metal, discharging slag produced and adding a basic flux to refine
06/18/2003EP1012124B1 Insulation material
06/17/2003CA2238928C Utilization of strontium aluminate in steelmaking
06/12/2003US20030106395 Reducing an iron oxide and another oxide, compacting in the absence of a binder and sintering; porosity of 20-65% by volume
06/04/2003EP1315841A1 Process for the metallurgical treatment of molten steel in a converter with oxygen top blown
06/04/2003EP1108071B1 Multifunction lance and use thereof
06/04/2003EP0974675B1 Pressure converter steel making method
06/04/2003CN1422337A Process for producing high-nitrogen ultra low-carbon steel
06/03/2003US6572713 Improved wear resistance
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