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)
11/2007
11/21/2007CN100350060C High-efficient metallurgical refiner and preparation thereof
11/21/2007CN100350058C Application of preprocessed molten iron in electric steelmaking
11/21/2007CN100350057C Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace
11/20/2007US7297238 Ultrasonic energy system and method including a ceramic horn
11/15/2007WO2007128864A1 Method in connection with steel production
11/14/2007EP1853740A2 System for optically analyzing a molten metal bath
11/14/2007EP1747297B1 Method for reducing cr in metallurgical slags containing cr
11/14/2007CN200974850Y Air brick preventing air edge leakage
11/14/2007CN101070560A RII upstream pipe gas-supplying method and apparatus
11/14/2007CN101070559A Top-bottom reblowing-converter smelting method for austenite stainless steel
11/14/2007CN100348768C Steel for loader shovel tool blade and method for producing same
11/14/2007CN100348737C Si-Ca-Ti-Fe alloy used for steelmaking desoxidant
11/08/2007WO2005123896A3 Method and apparatus for carrying out a metallurgical process
11/08/2007US20070256516 Steel making material recycling system
11/07/2007EP1852666A1 Reverse slant lining structure of furnace with reduced part structure
11/07/2007EP1852514A1 Method for producing extremely low carbon steel sheet and extremely low carbon cast piece having excellent surface characteristics, workability and formability
11/07/2007CN200971372Y Gun for spray repair, with RH vacuum insertion pipe
11/07/2007CN101067179A Bottom-blowing medium-frequency smelting furnace and in-furnace auxiliary refining method
11/07/2007CN101067160A MgO base desulfurizing agent and producing method thereof
10/2007
10/31/2007EP1849538A1 Gas feeder device for a flushing element
10/31/2007EP1848553A1 Wire for refining molten metal and associated method of manufacture
10/31/2007CN101063179A Method for prolonging retention period of molten steel in RH vacuum groove
10/31/2007CN101063178A Aluminium deoxidized steel refining desulfuration method
10/31/2007CN100345994C Austenitic nonmagnetic steel, and preparation method
10/31/2007CN100345992C Technology of improving and stabilizing titanium recorery rate in titanium micro-alloyed high strength weether resistant sinelting and continuous casting process
10/25/2007WO2007119806A1 Process for production of iron-base amorphous material
10/24/2007EP1053394B1 Method for energy fuel conversion systems
10/24/2007CN101058839A Synthetic slag for smelting low-silicon steel
10/24/2007CN101058838A Method of pre-fining molten steel in tapping process
10/24/2007CN101058837A Smelting method for decarburization and denitrogenation of ultra-pure ferrite stainless steel
10/18/2007WO2007116939A1 Method of smelting highly clean steel with extremely low sulfur content
10/18/2007US20070240539 Article for Increasing Titanium Content of Steel
10/17/2007CN200961142Y Vacuum groove for RH furnace outside refining equipment flat round platform bottom
10/17/2007CN101054649A Sulfur erosion resisting steel and smelting method thereof
10/17/2007CN101054648A Whole set smelting device for ferrotitanium series product
10/17/2007CN101054647A Method of producing low-temperature high-toughness steel and steel plate
10/17/2007CN101054616A Compound Si-Ca-Ba deoxidant producing process and equipment
10/17/2007CN101054615A Silicon-calcium-ferrum alloy
10/17/2007CN101054614A Aluminum-manganese-iron composite desoxidant
10/17/2007CN101054613A Fluxing agent for prerefining molten steel during tapping process
10/17/2007CN101054612A Long life molten iron pretreatment desulfurizing spraying gun
10/17/2007CN101054610A Molten iron pretreatment desulfurizing magnesium-spraying gun
10/17/2007CN100343398C Method for preparing silicon aluminium calcium composite deoxidant
10/17/2007CN100343397C Process for producing steel containing alumium low carbon low ilicon by small square blank continuous caster
10/11/2007WO2007114100A1 Process for producing steel for high-carbon steel wire material with excellent drawability and fatigue characteristics
10/10/2007CN200958112Y Infusion pipe for vacuum degassing apparatus
10/10/2007CN101050510A New type roller made from hard material suitable to tandem mill for bars and wire rods, and manufacturing method
10/10/2007CN101050506A Technique for alloying steel making directly from tungsten ore
10/10/2007CN101050505A Soldering steel plate in high intensity in use for ocean by large line energy, and manufacturing method
10/10/2007CN101050504A Soldering not quenching and tempering steel plate in high intensity by large line energy, and manufacturing method
10/10/2007CN101050503A Soldering low alloy steel plate in high intensity by large line energy, and manufacturing method
10/10/2007CN101050502A Soldering boat deck steel in high intensity by large line energy, and manufacturing method
10/10/2007CN101050481A Composite alloy of Al ¿C Mg ¿C Ca ¿C Fe with lower carbon, silicon, phosphor, and sulfur in use for final steelmaking deoxidizer
10/10/2007CN101050480A Complex ferroalloy of aluminum, nickel, copper with lower carbon and silicon in use for final steelmaking deoxidizer
10/10/2007CN101050479A Technique and installation for transporting quenching solidified steel slag
10/10/2007CN100341819C Fast repairing material in use for flush type desulfurized for molten iron
10/04/2007US20070227307 Charging a chromium(Cr)-containing liquid slag onto an iron bath; increasing the carboncontent and suppling energy; tapping the liquid slag having a Cr content of about 0.1% weight after reduction of the Cr; cooling and lowering the carbon content to <1%;leaving the remaining slag for the next melt
10/03/2007CN200955059Y Continuous casting steel-ladle pouring-area argon-gas sealing protection tower box
10/03/2007CN101048523A Grain-oriented electromagnetic steel sheet and process for producing the same
10/03/2007CN101045973A SPHD level cold rolled deep-drawing steel and its smelting process
10/03/2007CN101045972A Wear-resistant bainite cast steel liner plate and its manufacture process
10/03/2007CN101045952A Molten iron desulfurizing and demagging agent spraying gun
10/03/2007CN101045951A Molten stainless steel dephosphorizing process and plant
10/03/2007CN101045950A Process of treating BaO stainless steel oxidation dephosphorizing slag
10/03/2007CN101045949A No-fluorine composite slag melting agent for converter steelmaking and its production process
10/03/2007CN101045948A Boron steel producing converter smelting process
10/03/2007CN100340677C Slag regulating agent for super high power large electric furnace smelting
09/2007
09/27/2007WO2007108984A2 Production of iron using environmentally-benign renewable or recycled reducing agent
09/26/2007CN100339499C Feeding method for magnesium core spun yarn and device thereof
09/20/2007US20070215249 Method in Connection with Steel Production
09/19/2007CN200948492Y Speed regulation basket shaking desulfurizing machine
09/19/2007CN101037760A High-carbon high-high-vanadium high-speed steel composite roller and heat treatment method thereof
09/19/2007CN101037759A High-strength abrasion-proof thermostable nano alloyed steel material and producing method thereof
09/19/2007CN101037717A Molten iron spraying desulfurization spraying gun
09/19/2007CN101037716A Short-flow super low carbon steel ultra-low sulphur smelting control method
09/19/2007CN101037715A Molten iron desulfurization stir head
09/19/2007CN101037714A Molten iron desulfurization stir head
09/19/2007CN100338234C Nuisance free dephosphorized foaming slag in barium series with iron one containing BaSo2 as raw material
09/19/2007CN100338233C Improvement of impurities state in steel from calcium silicate
09/13/2007US20070210494 Stopper Rod for Delivering Gas Into a Molten Metal
09/13/2007US20070209480 subdividing Fe ore into particles of a selected size and mixing with particles of a biomass or particles of a plastic resinous material, forming a mass of the mixture into a body with a shape (pellets, briquettes etc.) that is suited for smelting in a furnace, placing in the furnace and heat treating
09/13/2007US20070209392 Method of making particles and materials
09/12/2007EP1831416A1 Method to obtain a manganese steel alloy, and manganese steel alloy thus obtained
09/12/2007EP1444373B1 Steel plate having superior toughness in weld heat-affected zone and method for manufacturing the same, welding fabric using the same
09/12/2007CN101033496A Alkaline oxygen converter steelmaking slagging fluxing agent and its preparing method and slagging method
09/07/2007WO2007100113A1 Blowing lance for refining, blowing lance apparatus for refining, method of desiliconizing of molten iron, and method of pretreatment of molten iron
09/05/2007EP1828424A1 Method of degassing molten metal
09/05/2007EP1339889B1 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME
09/05/2007CN200943096Y Vacuum chamber inset tube residue scraper
09/05/2007CN101029370A Production of FeNi-expansion alloy
09/05/2007CN101029347A Pre-melt steel ladle refined slag for cryogenic desulfurization
09/05/2007CN101029346A Deoxygenation furnace-curing agent and its production
09/05/2007CN100335669C Method for smelting phosphor-containing steel
09/05/2007CN100335660C Iron core aluminium and its preparation method
09/04/2007US7264766 Feed apparatus and portable dust collector
08/2007
08/30/2007WO2007098429A2 Method of making steel
08/30/2007WO2007096411A2 Method for cooling metallurgical vessels
08/30/2007CA2643252A1 Method of making steel
08/29/2007EP1826282A1 Method of producing a maraging steel
08/29/2007EP1287169B1 Method and apparatus for delivering metallurgically improved molten metal
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