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)
12/2010
12/15/2010CN101538636B Ladle furnace use nitrogen gas nitrogen alloying process
12/15/2010CN101469378B Method for preparing alsifer from high-alumina fly ash and magnetic beads
12/15/2010CN101403022B Desulfurization agitator head for hot metal
12/15/2010CN101346486B Two-phase stainless steel
12/15/2010CN101323891B Manufacturing method of pure high manganese steel cross frog
12/15/2010CN101285151B Petroleum case pipe with high strength and toughness and producing method thereof
12/14/2010CA2415244C Carbon steel ferrous product, namely for galvanization, and its methods of production
12/08/2010CN101906578A Iron series soft magnetic alloy containing rare earth La and preparation technology thereof
12/08/2010CN101906566A Preparation method of low temperature spherical iron casting for 3 MW wind power wheel hub as well as additive, nodulizing agent, inoculant and instantaneous inoculant for founding
12/08/2010CN101906560A Magnesium-aluminum-ferromanganese alloy for steelmaking deoxidization and desulphurization and preparation method thereof
12/08/2010CN101906512A Spray gun for desulfuration of single-spray particle magnesium molten iron
12/08/2010CN101906511A Aluminum-calcium-iron deoxidizer used for steel making and preparation method
12/08/2010CN101906510A Steelmaking aluminum calcium ferrum deoxidizer and preparation method thereof
12/08/2010CN101906509A Steel-making aluminum-calcium-iron deoxidizer and preparation method
12/08/2010CN101906508A Aluminum-calcium deoxidizing agent and preparation method thereof
12/08/2010CN101906507A Method for producing composite deoxidizer for steel making by using hot-melt yellow phosphorous dreg
12/08/2010CN101906506A Steel-covered aluminum-calcium alloy for steelmaking and preparation method thereof
12/08/2010CN101906503A Method for producing high-specification ultrahigh-obdurability aging-free railway basic construction steel
12/08/2010CN101906502A Calcium treating method for reducing size of D and Ds type of inclusions containing aluminum steel
12/08/2010CN101906500A Method for directly producing chrome-base alloy steel by comprehensively using calcium-free chrome slag
12/08/2010CN101905319A Steel pouring procedure and lower nozzle brick
12/08/2010CN101905307A Production process for valve body end cap
12/08/2010CN101628333B Method for controlling flow of molten metal
12/08/2010CN101560582B Rotary furnace cooling agent made of metallurgical waste material product and using method thereof
12/08/2010CN101545066B Method for smelting H2S corrosion resistant petroleum casing pipe steel 110S
12/08/2010CN101487072B Multifunctional circular seam type gas supply element for steel melting
12/08/2010CN101445865B Boiling water quenching processing technology of copper-chromium-boron cylinder sleeve
12/08/2010CN101444830B Method for casting elevator gray cast-iron scored pulley
12/08/2010CN101435057B Novel low-cost free-cutting stainless steel 303B and manufacturing process thereof
12/08/2010CN101412082B Production method for preventing cracks on medium-carbon high manganese steel
12/08/2010CN101381797B Steam supply apparatus for RH vacuum steel refining furnace
12/08/2010CN101294235B Composite slag for smelting stainless steel with back method at same time of desulfurization dephosphorization
12/08/2010CN101289723B Novel composite modifier for austenitic manganese steel
12/08/2010CN101254527B Method for producing low carbon bainite high-strength steel based on sheet bar continuous casting and rolling process flow
12/07/2010US7846379 Industrial furnace
12/02/2010US20100301528 ceramic filter comprising a carbon coating and a method for manufacturing the same
12/01/2010EP2255020A2 Flux-cored wire including molybdenum trioxide
12/01/2010CN201660669U Pollution-free deoxidized RH refining device
12/01/2010CN201660668U Pollution-free deoxidized VD refining device
12/01/2010CN201660667U RH treatment device with pollution-free deoxidization
12/01/2010CN201660666U VD processing device with pollution-free deoxidization
12/01/2010CN201660665U Pre-treating spray gun of low-turbulent flow liquid iron
12/01/2010CN201660664U Hot metal pretreatment spray rod stabilizer
12/01/2010CN201660663U CAS-OB processing device for unpolluted deoxidation
12/01/2010CN201660662U CAS-OB device with pollution-free deoxidization
12/01/2010CN201660661U Pollution-free deoxidization CAS-OB refining device
12/01/2010CN201660660U Polygonal-sectioned hot metal pretreatment lance
12/01/2010CN101899630A Quenching steel plate for engineering machinery with 900MPa-grade yield strength and production method thereof
12/01/2010CN101899629A Abrasion-resistant alloy cast steel and manufacturing equipment thereof
12/01/2010CN101899628A Abrasion-resistant alloy cast steel and manufacturing method thereof
12/01/2010CN101899627A Abrasion-resistant alloy cast steel and smelting and heat treatment processes
12/01/2010CN101899625A Ferrite stainless steel and manufacturing method thereof
12/01/2010CN101899620A Production process of wear-resistant alloy steel lining board
12/01/2010CN101899607A Smelting technology of wear-resistant alloy cast steel and equipment system thereof
12/01/2010CN101899606A Smelting device system of wear-resistant alloy cast steel
12/01/2010CN101899605A Smelting process of abrasion-resistant alloy cast steel
12/01/2010CN101899603A Method for preparing stainless steel
12/01/2010CN101899549A Method for reducing consumption of quicklime during steel-making process by utilizing molten iron deslagging process
12/01/2010CN101555537B Semi-steel steelmaking method
12/01/2010CN101538637B Molten iron demanganizing agent for silicon steel and manufacturing method thereof
12/01/2010CN101525681B RH vacuum processing technique for molten steel dehydrogenation
12/01/2010CN101525679B Method for deoxygenizing for clean steel smelting
12/01/2010CN101476074B Carbon-nitrogen-vanadium alloy containing titanium and manufacturing method thereof
12/01/2010CN101462155B Method for producing ultra-low carbon wire by small square billet continuous casting
12/01/2010CN101440461B Casinghead gas corrosion resistant pumping rod steel and manufacturing method thereof
12/01/2010CN101418366B Top and bottom combined blown dehydrogenation method of refined-smelting ladle furnace
12/01/2010CN101302576B Dolomite-based desulfurizer based on in-situ reduction and preparation thereof
12/01/2010CN101298635B Special pre-desulfuration synthetic slag for pipeline steel smelting and use method
12/01/2010CN101294233B Desilication demanganization method at same time of preprocessing hot metal
11/2010
11/25/2010US20100294080 Method for the production and the melting of liquid pig iron or of liquid steel intermediate products in a melt-down gasifier
11/24/2010EP2252712A1 Novel additive for treating resulphurized steel
11/24/2010CN201654557U Full-automatic intelligent control system of AOD furnace
11/24/2010CN201653170U Dust-collecting device of AOD furnace
11/24/2010CN201648450U Vacuum treatment inserting pipe
11/24/2010CN201648449U Bottom of RH vacuum processing furnace
11/24/2010CN201648448U Steel ladle jacking hydraulic system controlling steel ladle lifting speed through proportional pressure
11/24/2010CN201648447U Steel mesh for dip pipe part of vacuum refining furnace
11/24/2010CN201648446U Alloy feeding and dipping tube for LF refining furnace
11/24/2010CN201648445U Oblique-insertion spray gun for molten iron pretreatment
11/24/2010CN1952183B Composite metal-liquid thermal-insulating agent and method for preparing same
11/24/2010CN101896625A Method for producing a steel melt containing up to 30% of manganese
11/24/2010CN101892443A High strength and high toughness petroleum casing pipe at steel grade with yield strength of 170-180ksi and manufacturing method thereof
11/24/2010CN101892426A Medium and high-carbon Bainite steel and preparation method thereof
11/24/2010CN101892417A As-cast hypereutectic high chromium cast iron and preparation method thereof
11/24/2010CN101892414A Method for producing alloy steel by directly utilizing low-grade nickel-chromium commensal iron ore
11/24/2010CN101892359A Arrangement technology of multifunctional gun in refining outside RH furnace
11/24/2010CN101892358A Multipurpose top lance system
11/24/2010CN101892357A 顶枪旋转系统 Top Gun rotation system
11/24/2010CN101892356A Argon blowing protection system
11/24/2010CN101892355A RH furnace circulating pipe and building method thereof
11/24/2010CN101892354A Full combustion smoke gas excess heat reclaiming system of argon oxygen decarburization converter
11/24/2010CN101892353A Method for preparing magnesium-based desulfurizing agent
11/24/2010CN101892352A Arc furnace deep dephosphorization technology and deep dephosphorization agent thereof
11/24/2010CN101892351A External refining method of excavator axle seat molten steel furnace
11/24/2010CN101892350A Aluminum complex deoxidizer
11/24/2010CN101892349A Stainless steel dephosphorized carburant
11/24/2010CN101892348A Molten steel calcium supplement
11/24/2010CN101892347A Multi-effect refining agent for ladle refining furnace
11/24/2010CN101890492A Slag for liquid pouring of electroslag
11/24/2010CN101519710B Method for controlling non-metallic impurities in structural alloy steel
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