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)
11/2012
11/14/2012CN102021494B Weather resistant thick steel plate and manufacturing method thereof
11/08/2012US20120279350 Degassing of martensitic stainless steel before remelting beneath a layer of slag
11/07/2012EP2519268A1 Endoprosthesis containing multi-phase ferrous steel
11/07/2012CN202519293U Novel Ruhstahl Hausen Process (RH) vacuum chamber steam distribution device
11/07/2012CN202519292U Leak detector for steel ladle argon blowing air pipe
11/07/2012CN202519291U Replaceable connection type slag removing plate
11/07/2012CN102766816A 80Cr14MoV high-carbon high-chromium martensite stainless steel band and preparation method thereof
11/07/2012CN102766748A Production method of low-temperature steel plate capable of being welded by high heat input
11/07/2012CN102766731A Vacuum refining process
11/07/2012CN102766730A Method for on-line prediction of total decarbonization amount of molten steel in circulating vacuum degassing method
11/07/2012CN102766729A Low phosphor control method for high-speed axle steel
11/07/2012CN102766728A Method and device for real-time prediction of sulfur content of molten steel in refining process of ladle refining furnace
11/07/2012CN102766727A Refining deoxidation process for effectively reducing titanium content of tire cord steel
11/07/2012CN102766726A Method for smelting stainless steel by high-chrome melt and dephosphorized pre-melt
11/07/2012CN102766720A Desulphurization spray gun and desulphurization method thereof
11/07/2012CN102766705A Method for recycling granular iron and stabilizing temperature of KR procedure
11/07/2012CN102212649B Iron alloy for silicon-based steel making composite deoxidizer and preparation method of iron alloy
11/07/2012CN102206731B Vanadium and nitrogen alloying cored wire and method for molten steel
11/07/2012CN101760701B Alloy-plastic steel plate for die and production method thereof
11/06/2012US8303734 High strength thick steel material and high strength giant H-shape excellent in toughness and weldability and methods of production of same
11/01/2012WO2012147180A1 Vacuum degassing tank and method for degassing using same
10/2012
10/31/2012EP2518168A1 Wire for steel pan treatment of metal melts using calcium
10/31/2012CN202511631U Composite refractory brick for refining furnace
10/31/2012CN202509105U Combination heat preservation lining for RH finery lower grooves
10/31/2012CN202506831U Bottom blowing vent plug for steel ladle water simulation
10/31/2012CN102762320A Agent for maintaining surface temperature of molten steel and method for maintaining surface temperature of molten steel
10/31/2012CN102758150A High-yield-strength non-oriented electrical steel plate and manufacturing method thereof
10/31/2012CN102758144A Production method for steel ingot of large-sized high-nitrogen retaining ring steel
10/31/2012CN102758135A High-strength structural steel suitable for alpine regions and production method of high-strength structural steel
10/31/2012CN102758129A Method for manufacturing non-spangle galvanized sheet DX54D+Z from aluminum killed steel
10/31/2012CN102758116A Intermixture briquette obtained by direct alloying of V2O5 and application method thereof
10/31/2012CN102758071A Continuous annealing production method for steel for 280 MPa vehicle structure
10/31/2012CN102758066A Method for alloying manganese ore in LF (ladle furnace)
10/31/2012CN102758065A Barium-calcium-silicon molten steel secondary refining agent and preparation method thereof
10/31/2012CN102758064A Silicon-barium attapulgite deoxidier for steelmaking and preparation method thereof
10/31/2012CN102758063A Silicon-manganese-barium alloy deoxidier and preparation method thereof
10/31/2012CN102758062A Composite silicomanganese deoxidizer and preparation method thereof
10/31/2012CN102758061A Silicon-manganese sepiolite deoxidier for steelmaking and preparation method thereof
10/31/2012CN102758060A Silicon-barium-aluminum alloy deoxidier and preparation method thereof
10/31/2012CN102758059A Silicon-barium-potassium system deoxidier for steelmaking and preparation method thereof
10/31/2012CN102758058A Silicon-manganese coal ash deoxidier for steelmaking and preparation method thereof
10/31/2012CN102758057A Silicon-manganese-calcareous shale deoxidizer and preparation method thereof
10/31/2012CN102758056A Silicon-aluminum bentonite steelmaking deoxidizer and preparation method thereof
10/31/2012CN102758055A Calcium-silicon molten steel external refining agent and preparation method thereof
10/31/2012CN102758054A Calcium-aluminium-silicon molten steel external refining agent and preparation method thereof
10/31/2012CN102758053A Oxidation-resistant ferrotitanium material and preparation process thereof
10/31/2012CN102758052A Control method for RH vacuum processing mode
10/31/2012CN102758051A Method for producing special steel through high-cleanness low-oxygen content process of rotating furnace
10/31/2012CN102756112A Composite slag remover for casting
10/31/2012CN102220452B Method for duplex dephosphorization of intermediate frequency furnace and vacuum induction furnace
10/31/2012CN102181588B Method for recycling refined casting residues during steelmaking in steel plant
10/30/2012US8298317 Ironmaking and steelmaking
10/24/2012CN102748578A Seamless ferroaluminum wire and preparation method thereof
10/24/2012CN102747269A Low-silicon aluminum-containing steel and production method thereof
10/24/2012CN102747195A Protective device for sealing ring of VD furnace vacuum tank
10/24/2012CN102747194A Fluoride-free environmental-friendly slag dilution solvent for electric furnace, converter and medium frequency furnace and preparation method of fluoride-free environmental-friendly slag dilution solvent
10/24/2012CN102747193A High/low-carbon steel efficient desulfurizing and refining technique
10/24/2012CN102747192A Method for smelting ultralow-sulfur steel
10/24/2012CN102747191A Molten steel desulfurizer and preparation method thereof
10/24/2012CN102747190A Deoxygenation modifier for molten steel
10/24/2012CN102747189A Composite refining slag for refining molten steel
10/24/2012CN102747188A Fluorine-free carbon-free high-alkalinity submerged arc foaming refining agent and preparation method thereof
10/24/2012CN102747180A Method for controlling Ti inclusion in hypereutectoid steel
10/24/2012CN102744381A High-alkalinity tundish covering agent
10/24/2012CN102094109B Design method for automatic high-pressure water cleaning device
10/24/2012CN102071277B Converter dephosphorizing and steelmaking method
10/23/2012US8293038 Deep drawability, punch stretchability and ridging resistance; reduced amounts of C, N, Si, Mn, P and Ti for high workability; no defects such as ridging and roping
10/18/2012US20120260773 Operation method for mechanically stirring chrome-containing molten iron
10/17/2012CN202494108U Baking device for relative humidity (RH) vacuum chamber bottom circulation tube
10/17/2012CN202492540U Energy saving vacuum degassing (VD)/vacuum oxygen degassing (VOD) vacuum refining furnace based on full automatic mechanical pump group
10/17/2012CN102732792A Steel with thickness no lower than 100mm used in vessel in hydrogen environment, and production method thereof
10/17/2012CN102732777A Production method of low P, S and Ti steel
10/17/2012CN102732686A Method for producing vanadium-nitrogen micro-alloying high-strength steel by two-step vacuum method
10/17/2012CN102732685A Method for adding rare earth into RH refining furnace
10/17/2012CN102732684A On-line rapid RH sealing airbag replacing method
10/17/2012CN102732683A Production method of ultra low-carbon low-oxygen steel
10/17/2012CN102732682A Fixing clamping bolt device for steelmaking vacuum groove
10/17/2012CN102732681A Method for producing premelted refining slag by tailings of titanium extraction
10/17/2012CN102732680A Pre-smelting type iron calcium aluminate complex dreg dephosphorizing agent as well as preparation and application methods thereof
10/17/2012CN102732679A Composited desulfurizer for KR, preparation method and application thereof
10/17/2012CN102732678A Control method of oxygen in low-carbon low-silicon aluminum-killed steel
10/17/2012CN102732677A Refining method for preventing carbureting of molten steel in LF (ladle furnace) through utilizing argon plasmas
10/17/2012CN102732669A Auxiliary device for removal of dephosphorization residues in converter, and method for auxiliary removal of dephosphorization residues through air blowing
10/17/2012CN102732667A Method for controlling MnS inclusions in high-speed heavy rail steel
10/17/2012CN102732666A Method for controlling non-metallic slag inclusion in medium and heavy plate of hydrogen-induced cracking resistance pipe line steel
10/17/2012CN102728801A Production technology of base stock for stainless steel precision casting
10/17/2012CN102051444B Desulfurizing method of ladle refining furnace and desulfurizing method used for slab-grade steel
10/17/2012CN101899627B Abrasion-resistant alloy cast steel and smelting and heat treatment processes
10/17/2012CN101899607B Smelting technology of wear-resistant alloy cast steel and equipment system thereof
10/10/2012CN202482357U Automatic steam diffusion pressure-stabilizing device
10/10/2012CN202482356U Rotary slag removal device
10/10/2012CN202482355U Carbon cored wire for refined steel
10/10/2012CN202482354U Uniformly-adding device for feeding of refining furnaces
10/10/2012CN202482353U Sulfur cored wire
10/10/2012CN202482352U Aluminum-calcium cored wire
10/10/2012CN202482351U Silicon-calcium cored wire
10/10/2012CN102719766A Wear-resistant steel with high strength and production method thereof
10/10/2012CN102719728A Technique for producing anti-acid pipeline steel by RH-LF-VD refining
10/10/2012CN102719714A Alloy for refining precipitates in steel production process and application method thereof
10/10/2012CN102719665A Process method and equipment for producing slag-forming agent for making steel by utilizing steel making sludge
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