| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 01/30/2008 | CN101113485A High-calcium non-silicon aluminium calcium magnesium ferrous alloy for steel-smelting deoxidization and method for preparing the same |
| 01/30/2008 | CN101113484A LF composite deoxidization reducer |
| 01/30/2008 | CN101113483A Method for smelting heat-resistant anti-fatigue steel |
| 01/30/2008 | CN100365136C Method and apparatus for delivering metallurgically improved molten metal |
| 01/29/2008 | US7322496 Brick body for rotary nozzle |
| 01/24/2008 | WO2008009414A1 High dimensional cored wires containing oxygen removers and a process for making the same |
| 01/24/2008 | CA2658370A1 High dimensional cored wires containing oxygen removers and a process for making the same |
| 01/23/2008 | EP1880783A1 Ladle refining of steel |
| 01/23/2008 | CN201010670Y Magnesium granule blowing and desulphurizing device for molten iron |
| 01/23/2008 | CN201010669Y Molten iron preprocessing unit |
| 01/23/2008 | CN201010668Y Plug type thread feeding and guiding device |
| 01/23/2008 | CN201010667Y Powder-spraying device for ferrovanadium refinement |
| 01/23/2008 | CN201010666Y Core cabling wire for making steel |
| 01/23/2008 | CN201010665Y Automatic chain tensioning device of powder gun |
| 01/23/2008 | CN201010663Y Ladle mouth dross extractor with function of preventing lift hook unhooking |
| 01/23/2008 | CN101111324A Wire for refining molten metal and associated method of manufacture |
| 01/23/2008 | CN101109030A Hot metal anti-splash protecting method |
| 01/23/2008 | CN101109029A Composite alloy with deoxidized and corrosion protected aluminum chromium |
| 01/23/2008 | CN100363525C Preparation method for casting wear-resistant high speed steel |
| 01/23/2008 | CN100363508C Electric furnace to converter steel making production process |
| 01/22/2008 | CA2410558C Grain-refined austenitic manganese steel casting having microadditions of vanadium and titanium and method of manufacturing |
| 01/17/2008 | DE102006031687A1 Element Element |
| 01/16/2008 | CN201006883Y Vacuum ladle degasification and vacuum casting multiple branches steel ingot integrated device |
| 01/16/2008 | CN201006881Y Melting compartment and fusion metallurgy reactor |
| 01/16/2008 | CN101104909A OOCr13Ni5Mo ultralow-carbon martensitic stainless steel and producing method thereof |
| 01/16/2008 | CN101104903A Low-temperature titanium addition method for preparing TiCp/Fe composite material by in situ reaction casting method |
| 01/16/2008 | CN101104878A Device for mixing saturated steam and superheated steam used for vacuum refining furnace |
| 01/16/2008 | CN101104877A Dephosphorising flux for molten steel |
| 01/16/2008 | CN101104876A Method for producing ultra-low phosphoretic steel by molten steel dephosphorising outside furnace |
| 01/16/2008 | CN101104875A Rare-earth aluminum-manganese-titanium-iron alloy |
| 01/16/2008 | CN101104874A Method for processing refined-smelting ladle furnace deep desulfurization finally slag |
| 01/09/2008 | EP1640087B1 Brick body for rotary nozzle |
| 01/09/2008 | EP1254275B1 STEEL PLATE TO BE PRECIPITATING TiN + ZrN FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME AND WELDING FABRIC USING THE SAME |
| 01/09/2008 | CN101100725A Heat resistance stainless steel and smelting method thereof |
| 01/09/2008 | CN101100723A Meta-bainite steel and application of the same in railway |
| 01/09/2008 | CN101100702A Molten iron pot narrow gap gas-blowing slag-removing device and operation technique thereof |
| 01/09/2008 | CN100360688C Direct smelting method and equipment |
| 01/03/2008 | WO2008002176A1 Ladle steel deoxidation method |
| 01/02/2008 | CN101096738A Steel plate with low welding crack sensitivity and production method thereof |
| 01/02/2008 | CN101096736A Clean steel and manufacturing method |
| 01/02/2008 | CN101096723A Method for AOD whole melted iron directly smelting austenitic stainless steel |
| 01/02/2008 | CN101096722A Dephosphorising agent for melted iron pretreatment by KR method |
| 01/02/2008 | CN101096721A Deep desulfurizer for refining ultra-low-carbon steel and manufacturing method thereof |
| 01/02/2008 | CN101096720A Desulfurising method for ultra-low-carbon steel outer-furnace refining desulfuration and desulfurizer |
| 01/02/2008 | CN101096719A Desilication technology for chromium-containing melted iron |
| 01/02/2008 | CN101096718A 氧气注入方法 Oxygen injection method |
| 01/02/2008 | CN101096716A Electric furnace smelting method for high-grade pipe line steel |
| 01/02/2008 | CN101096715A Electric furnace smelting method for low-carbon low-silicon steel |
| 01/02/2008 | CN100359035C X65 pipeline steel for use in acid condition and its making process |
| 01/02/2008 | CN100359024C Low content aluminium silicon cacium barium alloy and its manufacture method |
| 12/27/2007 | WO2007148475A1 Steel for forging, process for producing the same, and forged article |
| 12/26/2007 | CN200996027Y Levelling device of vacuum chamber |
| 12/26/2007 | CN101092673A Refining technique for manufacturing pieces of vermicular cast iron |
| 12/26/2007 | CN101092657A Rare earth aluminum based composite alloy in use for steel making |
| 12/26/2007 | CN100357471C Cast piece and sheet of ferritic stainless steel, and method for production thereof |
| 12/26/2007 | CN100357470C Method for preparing ferro-titantium, steel and ferrovanadium from vanadium-titantium iron headings |
| 12/26/2007 | CN100357459C Al-Ca-Fe alloy contg. trace carbon, low slilicon, low phosphorus, low sulphur used for steelmaking |
| 12/21/2007 | WO2007145384A1 A method for stabilizing slag and novel materials produced thereby |
| 12/20/2007 | US20070292299 Method to Obtain a Manganese Steel Alloy, and Manganese Steel Alloy Thus Obtained |
| 12/19/2007 | EP1026266B1 Simplified ladle refining method |
| 12/19/2007 | CN200992562Y Molten iron external powder-injecting desulphurizing gun |
| 12/19/2007 | CN200992561Y Refining ladle turret device |
| 12/19/2007 | CN200991627Y Tail treatment dust-removal device |
| 12/19/2007 | CN101089204A Method for cooled agglomerated pellet of self-combustion production steelmaking and product |
| 12/19/2007 | CN101089200A Manufacturing method for upper groove chamber of split vacuum groove chamber of vacuum refining device |
| 12/19/2007 | CN101089199A Molten steel refining agent and preparation method |
| 12/19/2007 | CN100355932C Ferrum base rare earth high-chromium steel capable of welding and of heat and abrasive endurance |
| 12/19/2007 | CN100355925C Micro-alloying production for 82B wire rod of steel strand |
| 12/19/2007 | CN100355913C Vacuum air removing technology for austenite stainless steel |
| 12/19/2007 | CN100355912C Silicon-calcium-barium ferroalloy in use for steel making |
| 12/13/2007 | WO2007142034A1 Steel for high-cleanliness spring with excellent fatigue characteristics and high-cleanliness spring |
| 12/13/2007 | WO2007008181A3 Manufacturing method for complex steel deoxidizer |
| 12/12/2007 | CN200988847Y Dust-proof heat insulation gas seal jacket |
| 12/12/2007 | CN101086203A Method for producing continuous casting round billet for petroleum bush using convertor process |
| 12/12/2007 | CN101086029A High Ca, silicon-free aluminum calcium iron alloy for deoxidising of molten steel and its preparation method |
| 12/12/2007 | CN101086028A Composite deoxidizing agent aluminum-calcium-iron alloy for smelting steel |
| 12/12/2007 | CN100354435C Method for moten iron desulfurization using slag of desulfurized molten iron |
| 12/12/2007 | CN100354433C 转炉冶炼方法 Smelting method |
| 12/06/2007 | WO2007139393A1 Grain refiners for steel - manufacturing methods and use |
| 12/06/2007 | CA2653951A1 Grain refiners for steel - manufacturing methods and use |
| 12/05/2007 | EP1862559A1 Hoisting unit for steel processing pans in RH plants |
| 12/05/2007 | CN200985335Y Desulfurizing Dephosphorizing single mixing injection gun |
| 12/05/2007 | CN101084320A Method of degassing molten metal |
| 12/05/2007 | CN101082073A Method for manufacturing integral vacuum chamber of vacuum refining device |
| 12/05/2007 | CN101082072A New melting agent for steelmaking furnace slag |
| 12/05/2007 | CN100352577C Inoculant-strainer with improved filtration effectiveness and inoculant dissolution |
| 12/04/2007 | CA2398449C Method for grain refining of steel, grain refining alloy for steel and method for producing grain refining alloy |
| 11/29/2007 | US20070272054 Method and Installation for the Production of Steel Products Having an Optimum Surface Quality |
| 11/28/2007 | CN101078065A Method for preparing series titanium-iron alloy by smelting titanium raw material |
| 11/28/2007 | CN101078034A Magnesium-aluminum alloy core-spun yarn |
| 11/28/2007 | CN101078033A Technique for smelting raw material ferroferrite from waste steel |
| 11/28/2007 | CN100351401C Molten slag gasification dephosphorization method during converter splash protection process |
| 11/28/2007 | CN100351400C High-absorbility magnesium-feeding line desulfurizing method and its special apparatus |
| 11/28/2007 | CN100351399C Method for pig iron melt dephosphorize |
| 11/28/2007 | CN100351398C Highly effective metallurgical complexing agent for convertor (electric oven) and its preparation method and uses |
| 11/21/2007 | EP1857202A1 Method for influencing a liquid metal chemical composition in a ladle and an equipment system for carrying out said method |
| 11/21/2007 | EP1492893B1 Method and installation for producing stainless steel, especially high-quality steel containing chromium or nickel chromium |
| 11/21/2007 | CN200978293Y Narrow slit type air brick capable of increasing blow-opening ratio |
| 11/21/2007 | CN101074472A Ultrahigh-strength and high-toughness welded cast steel |
| 11/21/2007 | CN101074469A Forged (rolled) abrasive austenic permanganic steel and its manufacture |