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)
12/2012
12/12/2012CN102814473A Preparation method of low-viscosity casting powder for preparing steelmaking cast ingots
12/12/2012CN102814472A Casting powder for casting round ingots and manufacture method of casting powder
12/12/2012CN102268513B Method for improving castability of molten steel of medium and low carbon steel
12/12/2012CN102230051B Method for controlling nitrogen content in steel by semi-steel smelting
12/12/2012CN102166642B Method for controlling morphologies of inclusions in cast structure of steel
12/12/2012CN102041355B Ladle slag modifier for stainless steel refining process
12/11/2012CA2727187C Process for producing a foamed slag on austenitic stainless melts in an electric arc furnace
12/06/2012WO2012163849A1 Process for producing clean steels and clean steel produced thereby
12/06/2012US20120304820 Process for Producing a High-Cleanliness Steel
12/05/2012CN202576535U Automatic instantaneous inoculation device
12/05/2012CN202576478U Argon blowing device installed at bottom of steel ladle
12/05/2012CN202576477U High-compactness core-spun yarn
12/05/2012CN202571270U Permeable brick for molten iron ladle
12/05/2012CN102808081A Steelmaking slag former and preparation method thereof
12/05/2012CN102808067A Refining method for producing low alloy steel by refining and slagging of bauxite in LF (Ladle Furnace)
12/05/2012CN102808066A Method for reducing chrome loss by refining ferrochrome with argon and oxygen
12/05/2012CN102808065A Method for argon-oxygen refining low-phosphorus ferrochrome
12/05/2012CN102808064A Application of calcium-silicon alloy and nodular cast iron mixture in steelmaking
12/05/2012CN102808063A Method for manufacturing calcium metal core-spun yarn of high purity
12/05/2012CN102808062A Method for controlling A segregation of steel ingots by purification of molten steel
12/05/2012CN102806330A Method for improving inner quality of continuous casting billet with thick and large section
12/05/2012CN102091727B Method for improving internal quality of medium plate
12/05/2012CN102051439B Method for smelting high aluminium steel
12/05/2012CN102041353B Desulfurizer, preparation method thereof and desulfurization method adopting desulfurizer
12/05/2012CN101760583B Method for controlling impurity in ultra low carbon IF steel
12/04/2012CA2665307C Method and installation for introducing a cored wire into a bath of molten metal
11/2012
11/29/2012WO2012159179A1 Cooled lance for injecting into a metallurgical vessel
11/29/2012US20120301383 Composition of matter tailoring: system i
11/29/2012CA2839173A1 Cooled lance for injection into a metallurgical vessels
11/28/2012EP2527485A1 A silicon killed steel wire rod
11/28/2012EP2527476A1 Flexible minimum energy utlilisation electric arc furnace system and processes for making steel products.
11/28/2012CN202558883U Composition metal calcium-wire cored wire for steel-making deoxidization
11/28/2012CN202558882U Multi-alloy step-by-step adding device for metallurgical melting
11/28/2012CN202558881U Cored wire fixing device for refining wire feeder
11/28/2012CN202558880U Alloy adding metallurgy device
11/28/2012CN202555808U Steel ladle covering device
11/28/2012CN102796948A Non-oriented electrical steel plate with extremely low content of Ti and smelting method for non-oriented electrical steel plate
11/28/2012CN102796938A Method for increasing vanadium content of molten steel
11/28/2012CN102796849A Device for automatically performing temperature measurement and sampling on molten steel under vacuum state
11/28/2012CN102796848A Valveless control loop for full-steam vacuum distillation (VD) vacuum refining furnace
11/28/2012CN102796847A Premelting type molten iron slag regulator capable of reducing melting point of desulfurized molten iron slag
11/28/2012CN102796846A Composite cored wire for steelmaking and preparation method thereof
11/28/2012CN102796845A Method for adding rare earth in steel of stainless steel
11/28/2012CN102796840A Coolant for dephosphorizing and extracting vanadium of converter, production method thereof, and method for dephosphorizing and extracting vanadium of converter
11/28/2012CN102794419A Fluorine-free sodium-free ladle covering agent
11/28/2012CN102212652B Rapid degassing method of vacuum induction furnace
11/28/2012CN102127617B Silicon-aluminum-calcium-magnesium alloy as well as preparation method and application thereof
11/28/2012CN101736194B Wheel steel and preparation method as well as wheel thereof
11/28/2012CN101296766B Method for manufacture of ultra-low carbon steel slab
11/22/2012WO2012155225A1 Lance for top injection in metallurgical vessels and method for the production of said lance
11/22/2012CA2839175A1 Lance for top injection in metallurgical vessels and method for the production of said lance
11/21/2012CN202543251U Fatigue, fracture and breakage resistant stirrer for desulfurization of molten iron
11/21/2012CN202543250U Hot metal desulphurization injection wellhead overall fully enclosed gas sealing device
11/21/2012CN202543249U Improved double-layer furnace lid liner of ladle furnace (LF) ladle refining furnace
11/21/2012CN202543238U Integrated molten iron pre-treating spray gun
11/21/2012CN202539561U Ventilation device capable of preventing negative pressure steel leakage
11/21/2012CN102791889A Method of setting a slag consistency and apparatus for carrying out the method
11/21/2012CN102787216A Method for producing non-quenched and tempered N80 1 steel by nitrogen content control
11/21/2012CN102787215A Method for RH nitrogen-increasing control of glassed steel
11/21/2012CN102787214A Ladle furnace refining fluoride-free pre-melted slags, preparation method and using method
11/21/2012CN102787213A Aluminium-calcareous premelted refining slag for low-cost steel-making and method for preparing same
11/21/2012CN102787212A Steel-making dephosphorization agent and preparation method thereof
11/21/2012CN102787211A Method for producing high-quality low-sulfur steel by using aluminium and calcium premelted refining slag
11/21/2012CN102787210A Calcareous premelted composite deoxidation and desulfurization agent for low-cost steel-making and method for preparing same
11/21/2012CN102787209A Method for producing ultralow-sulfur steel under high vacuum
11/21/2012CN102787208A Pure calcium cored wire for steelmaking
11/21/2012CN102787206A Smelting method for controlling nitrogen content in steel ingot of medium carbon chromous mold steel and steel ingot
11/21/2012CN102787203A Fluoride-free slag-making fluxing agent for converter steel making
11/21/2012CN102787202A Method for controlling nitrogen content of low nitrogen steel
11/21/2012CN102787197A High-efficiency slagging and dephosphorization agent and preparation method thereof
11/21/2012CN102787196A Method for smelting stainless steel by direct reduced iron
11/21/2012CN102787190A Antioxidant titanium carbide material and preparation method of antioxidant titanium carbide material
11/21/2012CN102337463B 00Cr18Mo2 stainless steel pipe billet and manufacture method thereof
11/21/2012CN102277470B Method for smelting low-silicon cold heading steel
11/21/2012CN102212736B Method for preparing niobium microalloy steel by using low-niobium molten iron
11/21/2012CN102206783B Molten steel alloying cored wire and method
11/21/2012CN102061427B Production method of HRBF500E high-performance shock-resistant reinforcing steel bar
11/21/2012CN101956131B Preparation method of ultra-low carbon steel and ultra-low carbon steel plate
11/21/2012CN101956044B Refining method for improving clean class of steel
11/21/2012CN101760585B Deep-desulphurizing slag system containing BaO and Li2O and method for producing ultralow-sulfur steel by adopting same
11/20/2012US8313553 Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment
11/20/2012US8313552 Method for the production and the melting of liquid pig iron or of liquid steel intermediate products in a melt-down gasifier
11/15/2012WO2012154714A1 Degasser snorkel with serpentine flow path cooling
11/15/2012WO2012153730A1 Steel ladle residual refractory material measurement method and device
11/15/2012DE102011117845B3 Producing austenite-containing fine-dendritic cast steel exhibiting increased transformation induced plasticity/twinning induced plasticity properties, comprises blowing species-characteristic particles with inert gas, into casting stream
11/14/2012EP2522758A1 Operation method for mechanically stirring chrome-containing molten iron
11/14/2012CN202533179U Dual-optical colorimetric operation-based infrared AOD furnace temperature measurement optical system
11/14/2012CN102776440A Method for smelting zirconium-containing alloy steel for welding
11/14/2012CN102776329A Method for refining SS400 steel sheet with reduced aluminium consumption in ladle furnace
11/14/2012CN102776328A Preparation method of steel ladle slag modifier for low-oxygen low-sulfur high-nitrogen steel
11/14/2012CN102776327A Furnace tilting control method for prolonging service life of AOD furnace
11/14/2012CN102776326A Dust removal and two-medium waste heat generation system for argon oxygen decarburization converter
11/14/2012CN102776325A Fluorite pellet and method for producing same
11/14/2012CN102776324A Iron-calcium premelting-type dephosphorizing gent for steelmaking and preparation method thereof
11/14/2012CN102776323A Smelting method of steel for hypoxia axle
11/14/2012CN102776322A Method for treating impurities in pipe line steel by adopting nucleant refined crystal grains
11/14/2012CN102776321A Novel calcium-adding method for preventing nozzle clogging of steel furnace continuous casting
11/14/2012CN102191356B Control method of inclusions in thick steel plate used for high heat input welding
11/14/2012CN102071349B Method for producing microalloy steel by using rare elements in molten iron
11/14/2012CN102051531B High boron content austenite stainless steel and preparation method thereof
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