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)
11/2010
11/24/2010CN101258256B Low alloy steel
11/24/2010CN101240397B Converter-RH-LF-continuous casting technique for producing pipe line steel
11/18/2010US20100288078 Process for producing stainless steel using direct reduction furnaces for ferrochrome and ferronickel on the primary side of a converter
11/17/2010CN201634716U Vacuum pipeline sealing device of double-station RH system
11/17/2010CN201634715U Double-hole side-spraying type desulfuration spray gun
11/17/2010CN201634714U Deoxidizing desulfurizing compound agent molding block
11/17/2010CN201634713U Deoxygenation-desulfuration integrated block
11/17/2010CN101886229A Ball dedicated for semi-autogenous mill and process method thereof
11/17/2010CN101886218A Steel making method of J55-grade 37Mn5 oil casing pipe
11/17/2010CN101886203A Silicon iron product with low content of nitrogen
11/17/2010CN101886156A Steelmaking method of ladle refining furnace
11/17/2010CN101886150A Recycling method and system for steel ladle pouring afterheat-state steel slag
11/17/2010CN101469357B Reverse V-shaped granule magnesium molten iron desulfuring spray gun
11/17/2010CN101457276B Slag nonpollution deoxygenation method capable of regulating anode oxygen partial pressure and device thereof
11/17/2010CN101451209B Method for adding ferroboron during steel smelting process
11/17/2010CN101445856B Method for dehydrogenating molten steel by cored-wire containing chloride
11/17/2010CN101413091B Novel easy-to-cut stainless steel 303B and manufacturing method thereof
11/17/2010CN101348843B Method for producing hot rolled steel strip for automotive frame
11/17/2010CN101121992B Method for producing strong annealed steel hot-rolled sheet coil
11/11/2010WO2010127869A1 Process for slag foaming a non-stainless steel melt in an electric arc furnace
11/10/2010EP2248925A1 Steel for machine structural use with excellent machinability
11/10/2010EP2248917A1 Measuring lance device for a metal melt in a gas removal container for vacuum processing
11/10/2010EP2248916A1 Process for removal of copper contained in steel scraps
11/10/2010EP2247761A1 Method of making a high strength, high toughness, fatigue resistant, precipitation hardenable stainless steel
11/10/2010CN201626972U Experimental inductive type top blowing oxygen steel-making refining installation below 2 tons
11/10/2010CN201626971U Device for tundish extra electric field pollution-free deoxidation
11/10/2010CN101880824A Q345q-series super-thick bridge steel plate and production method thereof
11/10/2010CN101880755A Method for preparing high-phosphorus pig iron by using dephosphorized converter slag
11/10/2010CN101880754A Submerged arc foaming agent of LF (Low Frequency) furnace
11/10/2010CN101880753A Strong desulphurizer containing BaO and Li2O, production method thereof and method for deeply desulfurizing liquid steel
11/10/2010CN101880752A Pretreating desulfurization/dephosphorization spray gun for molten iron
11/10/2010CN101880751A Composite desulfurization/dephosphorization spray gun for molten iron
11/10/2010CN101880750A Aluminium compound deoxidizer
11/10/2010CN101880749A Al-Ca deoxidizer and production method thereof
11/10/2010CN101880748A Preparation method of silicon-carbon product
11/10/2010CN101880747A Clean steel production method for reducing molten steel total oxygen content
11/10/2010CN101880746A Preparation process of nano powder modified and reinforced die steels
11/10/2010CN101880168A Hot mending material for spray gun
11/10/2010CN101487074B Calcium processing core cabling wire for producing stainless steel
11/10/2010CN101392307B Environmental friendly energy-saving electric furnace direct steel-making method and device thereof
11/10/2010CN101343679B Ladle furnace refining agent and preparation thereof
11/10/2010CN101338402B Method for manufacturing copper-containing ferrite antimicrobial stainless steel belt
11/09/2010US7829010 Guide tube end-piece, assembly and method
11/09/2010US7828873 use to smelt an iron containing feed material to produce molten iron in accordance with the HIsmelt process, direct smelting of iron ore
11/04/2010US20100275728 Method in connection with steel production
11/03/2010CN201621963U Masonry structure of 18T AOD furnace lining
11/03/2010CN201620177U Composite porous brick
11/03/2010CN101876032A Weather-resistance bridge high-strength steel plate and production method thereof
11/03/2010CN101876027A High-chromium grinding ball and secondary modification process thereof
11/03/2010CN101876024A Production method for high-chrome continuous cast billet containing N duplex stainless steel of pipe blank
11/03/2010CN101875999A Vacuum pipeline sealing device for double-station RH system
11/03/2010CN101875998A Smelting process in early stage of furnace life of argon-oxygen furnace
11/03/2010CN101875997A Desulfurization slag regulator for refining steel and preparation method thereof
11/03/2010CN101875996A Fluorine-free molten iron dephosphorization agent
11/03/2010CN101875995A Method for deoxidizing and alloying molten steel
11/03/2010CN101875994A Novel weathering resistant steel microalloying compound core-spun yarn
11/03/2010CN101875112A Micron/nano metallurgical addition agent
11/03/2010CN101585083B Inactivating magnesium desulfurizing agent and preparation method thereof
11/03/2010CN101555539B Al-Ca-Fe complex deoxidizer and preparation method thereof
11/03/2010CN101525717B Ti microalloyed ultra-fine grain hot rolled steel at 700MPa class and production method thereof
11/03/2010CN101487102B Non-molybdenum non-nickel middle chrome wear resistant steel casting and heat treatment method thereof
11/03/2010CN101451174B Deslagging process of unrefined steel
11/03/2010CN101376917B Phosphorus pig iron additive for aluminum electrolysis
11/03/2010CN101376915B Method for smelting high-alumina non-magnetic steel
11/03/2010CN101353750B Refining method by in situ extraction of inclusion content in melting steel
11/02/2010US7824604 Methods of implementing a water-cooling system into a burner panel and related apparatuses
10/2010
10/27/2010EP2242862A2 Method for producing a steel melt containing up to 30% of manganese
10/27/2010EP2242860A2 Process for preparing a foaming slag former, product and use thereof
10/27/2010CN201614384U 钢包炉气氛控制装置 Pack steel furnace atmosphere control device
10/27/2010CN201614178U 粉料喷吹输送装置 Powder injection delivery device
10/27/2010CN101874121A Method and apparatus for treating high-temperature slag
10/27/2010CN101871083A Ultra-thick low-alloy high-strength Q345-series steel plate and production method thereof
10/27/2010CN101871080A Sleeve for thick oil thermal production well and production method
10/27/2010CN101871079A Copper-bearing ferritic antibacterial stainless steel and manufacturing method thereof
10/27/2010CN101871035A Refining device and vacuum refining process for use in non-oriented silicon steel production
10/27/2010CN101871034A Deoxidizer
10/27/2010CN101549364B Method of using hot tandem rolling broad strip mill to produce steel plate for ship hull structure use
10/27/2010CN101543838B Method for manufacturing steel wire rod for pipe line steel submerged arc welding wire
10/27/2010CN101457273B Method for producing steel for small square billet continuous casting high titanium alloy bonding wire
10/21/2010WO2010119223A1 Powder for a wire cored with sulfur, cored wire and method for manufacturing a cored wire using same
10/21/2010CA2758693A1 Powder for a wire cored with sulfur, cored wire and method for manufacturing a cored wire using same
10/20/2010CN101864534A Soft tin plate produced by using continuous annealing mode
10/20/2010CN101864510A Nodular cast iron type finery shielding cover
10/20/2010CN101862694A Combined type mechanically crushing machine hammer and manufacturing method thereof
10/20/2010CN101481772B High-carbon steel wire for superfine steel wire and manufacturing method thereof
10/20/2010CN101413043B Steel-smelting regulator and preparation thereof
10/19/2010US7815846 Agitator and melting furnace with agitator
10/19/2010US7815845 Method of degassing molten metal
10/13/2010CN201605290U 一种免烧氧透气砖 One kind of unburned oxygen permeable brick
10/13/2010CN201605289U 一种免人力拆装的钢包吹氩联接结构 A no human removable coupling structure ladle argon
10/13/2010CN201605288U 铁水脱硫用复合钝化颗粒镁 Hot metal desulphurization with granulated magnesium composite passivation
10/13/2010CN201603871U 钢包底吹氩自动连接装置 Ladle bottom blowing argon automatic connection device
10/13/2010CN101857942A Hot rolled steel plate with 590MPa-level tensile strength and production method thereof
10/13/2010CN101857938A High-silicon and medium-chromium grinding ball and secondary metamorphic processing technique thereof
10/13/2010CN101857937A Ferro-silico-aluminum high-pressure alloying pellet and processing technique thereof
10/13/2010CN101857912A Turbine type stirrer used for molten iron mechanical stirring desulfuration
10/13/2010CN101857911A Method for steelmaking by using converter
10/13/2010CN101603146B Automobile spoke steel and smelting process
10/13/2010CN101525680B Ladle lifting hydraulic system using vacuum circulation degassing method
10/13/2010CN101429615B Nodular graphite cast iron crankshaft of diesel engine and its non-feedhead casting process
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