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)
09/2012
09/19/2012CN101928894B High-strength weather resisting steel with Cu2-xS dispersed precipitates and manufacturing method thereof
09/12/2012CN102660711A Steel for petroleum casing connecting piece and manufacturing method thereof
09/12/2012CN102660663A Method for smelting super third-generation double-phase stainless steel by using intermediate frequency furnace
09/12/2012CN102660662A Method for producing deoxidized furnace protecting agent by utilizing waste magnesia carbon brick and gangue
09/12/2012CN102660661A Online multifunctional double-station LF (Low-Frequency) furnace system and online LF furnace steelmaking method
09/12/2012CN102659432A Novel RH gunning refractory
09/12/2012CN101928801B Blowing slag-removing equipment for molten iron pretreatment
09/11/2012US8262985 Smelting or reduction furnace, in particular electric arc furnace with an open, semi-closed or closed configuration
09/11/2012US8262767 Method of producing steel for steel pipe excellent in sour-resistance performance
09/07/2012WO2012118093A1 High-carbon steel wire having excellent drawability and fatigue properties after drawing
09/05/2012CN202415609U Furnace cover argon-seal device for ladle refining furnace
09/05/2012CN202415608U Alloy chute of vacuum circulating degassing furnace
09/05/2012CN202415607U Gun head of slag breaking gun of vacuum circulation degassing furnace
09/05/2012CN202415606U Slag removal frame for cage chair trunnion of vacuum circulating degassing furnace
09/05/2012CN202415605U Ladle bottom argon-blowing automatic adjusting device
09/05/2012CN202415604U Steel ladle bottom blowing nitrogen/argon conversion device
09/05/2012CN202415603U Double channel molten iron desulfurization spray gun
09/05/2012CN202415602U Water-cooled splash-proof device
09/05/2012CN202415601U Steel-making solid calcium line composite cored wire
09/05/2012CN102653842A High-strength and wear-resistant cast-steel conical liner plate for crushers and manufacturing method thereof
09/05/2012CN102653814A Processing method for boron mud reutilization
09/05/2012CN102653813A Boron-base fluxing residue for refinement, and preparation and application method thereof
09/05/2012CN102653812A Deoxidizing and desulfurizing metallurgical powder composition
09/05/2012CN102653811A Method for deoxidization and alloying by using ferro-silico-manganese alloy
09/05/2012CN102653810A Ferro-silico-manganese alloy for smelting low-silicon low-carbon steel
09/05/2012CN102653809A Composite refining agent for metallurgy and processing technique thereof
09/05/2012CN102653808A Seamless aluminum-containing core-spun yarn
09/05/2012CN102652988A Boron-containing barium-oxide-base ladle covering agent as well as preparation method and application thereof
09/05/2012CN102154535B Vacuum degree gas saving regulation system
09/05/2012CN102127618B Device and method for refining, oxygenating and deeply decarbonizing molten steel in vacuum
09/05/2012CN102071285B Molten steel refining purification assisting agent and preparation method thereof
09/05/2012CN102041350B Method for improving purity of molten steel in argon station
09/05/2012CN102041343B Method for reducing DO (dissolved oxygen) content of steel
09/05/2012CN102022922B Manufacturing method for prolonging service life of KR stirrer
09/05/2012CN102010938B Ladle furnace-vacuum degassing (LF-VD) furnace reduction refining slag with low SiO2 and Al2O3 contents
09/05/2012CN102010931B Slagging method for reducing inclusions in boiler refractory steel
09/05/2012CN101979674B Argon blowing process system
09/05/2012CN101956045B Refining slag and method for refining molten steel
09/05/2012CN101935740B White slag refining agent for LF (Ladle Furnace) refining furnace and preparation method thereof
09/05/2012CN101875997B Desulfurization slag regulator for refining steel and preparation method thereof
09/05/2012CN101851725B Alloy for improving shapes of carbides in nickel-hardened indefinite chilled cast iron and manufacturing method
09/05/2012CN101717890B Cast low alloy steel for grader blade and preparation method
09/05/2012CN101709354B Transversal arrangement of ladle car track and vacuum chamber trolley replacing track
09/05/2012CN101596573B Method for manufacturing transition section of conical head of coke tower
09/05/2012CN101187316B Exhaust guide assembly for variable giometry shape turbocharger with improved high-temperature endurance
08/2012
08/30/2012WO2012115181A1 High-strength steel sheet exhibiting superior stretch-flange formability and bendability, and method of preparing ingot steel
08/30/2012CA2808458A1 High-strength steel sheet exhibiting excellent stretch-flange formability and bending workability, and method of producing molten steel for the high-strength steel sheet
08/29/2012CN102652043A Agent for maintaining surface temperature of molten steel and method for maintaining surface temperature of molten steel
08/29/2012CN102649989A Multi-alloy step feed device for metallurgy smelting
08/29/2012CN102649986A Production method for high-silicon chromium-containing coil rods
08/29/2012CN102051434B Method for smelting silicon steel
08/29/2012CN102010932B Method for producing deoxidizer by utilizing waste silicon carbide of aluminium electrolysis
08/29/2012CN101876032B Weather-resistance bridge high-strength steel plate and production method thereof
08/29/2012CN101818304B Ultra-large linear energy input welding high-strength steel and production method thereof
08/29/2012CN101348847B Technological process for secondary refining desulphurization
08/22/2012EP2488670A1 Degassing of martensitic stainless steel before remelting beneath a layer of slag
08/22/2012CN202390473U Argon blowing device
08/22/2012CN202390472U Online replaceable novel powder-injection permeable brick
08/22/2012CN202390471U Novel induction argon-oxygen powder spraying refining furnace
08/22/2012CN202390470U Rotary spraying gun for desulfurizing liquid iron by spiral blade
08/22/2012CN202390469U Sliding electrode device of refining furnace
08/22/2012CN102644022A Manufacturing method for ferritic stainless steel strip containing molybdenum
08/22/2012CN102644018A Smelting process used for plate blanks of medium and heavy plates of hydrogen induced cracking resistant pipeline steel
08/22/2012CN102643980A Automatic production system for manganese metal ball
08/22/2012CN102643957A Vacuum pumping method for steel-making vacuum distillation (VD) furnace
08/22/2012CN102643956A VD (Vacuum Degassing) vacuum furnace shielding cover
08/22/2012CN102643955A Method for producing iron ladle or steel ladle rare residue heat preservation agent by using coal gangue
08/22/2012CN102643954A Novel knotted reactor (KR) molten iron desulfurization and temperature reduction process
08/22/2012CN102643953A Compressing double deoxidizer for steelmaking and preparation method thereof
08/22/2012CN102643952A Method for obtaining slot length and width of bottom powder injection element of ladle
08/22/2012CN102643950A Method for smelting sulfur containing steel for vehicle and sulfur containing steel
08/22/2012CN102643945A Novel knotted reactor (KR) desulfurization stirring method
08/22/2012CN102010939B Molten steel refining slags and application thereof
08/22/2012CN101892351B External refining method of excavator axle seat molten steel furnace
08/22/2012CN101838769B Steel for hot rolling U type steel sheet pile with tensile strength more than or equal to 600MPa and production method thereof
08/22/2012CN101838768B Low-temperature impact resistant steel for hot-rolling U-type steel sheet pile and production method thereof
08/21/2012US8246716 Method in connection with steel production
08/15/2012EP2487267A2 Metallurgical facility
08/15/2012EP2152918B1 Novel additive comprising lead and/or a lead alloy intended to treat baths of liquid steel
08/15/2012CN202382584U Contacting efficient cooling dedusting device
08/15/2012CN202380038U Bottom air blowing type liquid iron pot
08/15/2012CN202380037U Built-in elbow pipe desulphurization lance
08/15/2012CN202380036U Stirring device for molten iron desulphurization
08/15/2012CN202380035U Gathering unit for passivated magnesium particles
08/15/2012CN202380034U Device for adding rare earth alloy into steel ladle or electric furnace
08/15/2012CN202380033U Steelmaking pure-calcium solid cored wire
08/15/2012CN202380032U Solid calcium metal cored wire for steel making
08/15/2012CN202380014U Molten iron desulfurization and agitation spraying gun
08/15/2012CN202377297U Cored wire production device
08/15/2012CN102639737A Steel material exhibiting excellent fatigue-crack progress resistance and corrosion resistance, and production method for same
08/15/2012CN102634732A Smelting method of high-carbon chromium bearing steel
08/15/2012CN102634726A Manufacturing method of agitating arm of agitator
08/15/2012CN102634717A Manufacturing method for steel ingot of axle steel
08/15/2012CN102634643A Method for controlling nitrogen content of high-permeability-grade oriented electrical steel belt
08/15/2012CN102634642A Deep desulfuration method for non-oriented electrical steel
08/15/2012CN102634641A Deoxidation method for converter tapping molten steel
08/15/2012CN102634640A Nickel-magnesium alloy cored wire for final deoxidation of low-carbon molten steel
08/15/2012CN102634639A Slag-iron separating agent
08/15/2012CN102634638A Calcium treatment process of rod wire alloy steel
08/15/2012CN102634629A Smelting process for producing low-carbon ultralow-phosphorus steel in converter
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