| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 09/16/2009 | CN101532072A A desulfurizing agent and method for preparing same |
| 09/16/2009 | CN101532071A Converter dephosphorization complex slag former and slagging technology |
| 09/16/2009 | CN101532070A Steel fusant desulfurizer |
| 09/16/2009 | CN101530896A High casting speed continuous casting covering slag used for ultra-low-carbon steel |
| 09/16/2009 | CN100540689C Magnesium desulphurization method for molten iron pretreatment and powder used thereby |
| 09/16/2009 | CN100540688C Two-step blowing secondary refining process |
| 09/16/2009 | CN100540687C Hot metal anti-splash protecting method |
| 09/16/2009 | CN100540685C A method for direct steel alloying |
| 09/15/2009 | US7588718 Apparatus for injecting gas into a vessel |
| 09/11/2009 | WO2009111536A2 Niobium as a protective barrier in molten metals |
| 09/10/2009 | US20090224443 Niobium as a protective barrier in molten metals |
| 09/09/2009 | EP2098602A1 Iron-based powder material, method for producing the same, and briquette for steelmaking material |
| 09/09/2009 | EP2097543A1 Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a ddd installation |
| 09/09/2009 | EP2097505A1 Method and device for producing pig-iron based stainless steel without using a supply of electrical energy |
| 09/09/2009 | CN101525728A New material for hot rolling seamless steel tube steel balls and preparation method thereof |
| 09/09/2009 | CN101525718A Alloying process for stably and precisely controlling molybdenum content in steel |
| 09/09/2009 | CN101525717A Ti microalloyed ultra-fine grain hot rolled steel at 700MPa class and production method thereof |
| 09/09/2009 | CN101525681A RH vacuum processing technique for molten steel dehydrogenation |
| 09/09/2009 | CN101525680A Ladle lifting hydraulic system using vacuum circulation degassing method |
| 09/09/2009 | CN101525679A Method for deoxygenizing for clean steel smelting |
| 09/09/2009 | CN101524947A High-performance stainless steel wheel hub of automobile and manufacturing method thereof |
| 09/09/2009 | CN100537789C Method for preparing high-sulfur iron-containing series desulfurizing agent |
| 09/09/2009 | CN100537788C Material-spraying device for iron-smelting furnace interrupted front molten iron pre-treatment |
| 09/08/2009 | CA2639194C Coupling for a molten metal processing system |
| 09/03/2009 | WO2009108892A1 Method of making a high strength, high toughness, fatigue resistant, precipitation hardenable stainless steel |
| 09/03/2009 | CA2718576A1 Method of making a high strength, high toughness, fatigue resistant, precipitation hardenable stainless steel and products made therefrom |
| 09/02/2009 | CN101522922A Ladle steel deoxidation method |
| 09/02/2009 | CN101519752A High strength and toughness pipeline steel roll in low-carbon and high-niobium-chromium system and preparation method thereof |
| 09/02/2009 | CN101519748A Rare-earth aluminum-calcium-iron alloy |
| 09/02/2009 | CN101519713A Slag adhesion preventing fluorine-free slag modifier for ladle refining, preparation method and using method |
| 09/02/2009 | CN101519712A Ladle refining slag modifier, preparation method and slag modifying method |
| 09/02/2009 | CN101519711A Method for desiliconizing, demanganizing, dephosphorizing and desulfurating molten iron |
| 09/02/2009 | CN101519710A Method for controlling non-metallic impurities in structural alloy steel |
| 09/02/2009 | CN100535133C Steel making lime additive and its production process |
| 09/02/2009 | CN100535132C Iron and steel metallurgical compound refining agent |
| 08/27/2009 | US20090211400 Grain Refiners for Steel-Manufacturing Methods and Use |
| 08/26/2009 | CN201296766Y Multifunctional top lance for vacuum refining of liquid steel |
| 08/26/2009 | CN201296765Y Multifunctional top lance head for vacuum refining of liquid steel |
| 08/26/2009 | CN101517343A Production of an inert blanket in a furnace |
| 08/26/2009 | CN101514428A Steels with excellent toughness for welding heat affected section and method of producing the same |
| 08/26/2009 | CN101514384A Intelligent gas-flow rate controller |
| 08/26/2009 | CN100532619C High-boron low-carbon abrasion resistant cast steel and heat treatment method thereof |
| 08/26/2009 | CN100532618C Nichrome steel alloy for smelting stainless steel and producing method thereof |
| 08/26/2009 | CN100532615C Vehicle wheel steel smelting method |
| 08/26/2009 | CN100532612C Thin steel sheet excelling in surface property, moldability and workability and process for producing the same |
| 08/26/2009 | CN100532609C Method for preparing high nitrogen and nickel-less austenitic stainless steel |
| 08/26/2009 | CN100532608C Method for smelting high-nitrogen steel under normal pressure |
| 08/26/2009 | CN100532584C MgO base desulfurizing agent and producing method thereof |
| 08/26/2009 | CN100532581C Method and apparatus for decarburization of molten steel |
| 08/25/2009 | CA2338110C Rotor for the treatment of a fluid such as a metal melt |
| 08/19/2009 | EP2090666A1 Method of modifying the graphitic phase of the casting from a lamellar shape to a spheroidal or vermiform shape by means of a monophyle animem |
| 08/19/2009 | CN201292381Y High-capacity ladle |
| 08/19/2009 | CN201292380Y Novel fining furnace welding electrode holder head |
| 08/19/2009 | CN201292379Y Four-upright post double-station transverse arm rotary refined-smelting ladle furnace |
| 08/19/2009 | CN201292378Y Four-column refined-smelting ladle furnace |
| 08/19/2009 | CN101509099A High-strength Q420C level steel tower corner iron and production process |
| 08/19/2009 | CN101509094A Silicon-aluminum-barium-calcium rare earth iron alloy for steel-smelting |
| 08/19/2009 | CN101509052A Deoxidization, acieration and alloying bottom blowing powder-spraying method for LF furnace |
| 08/19/2009 | CN100529122C Refining material for reductive steel refining and granulation method thereof |
| 08/19/2009 | CN100529111C Special-purpose slag adjusting agent for vanadium-titanium-iron-water-magnesium desulfurization |
| 08/13/2009 | WO2009076923A3 Method for producing a steel melt containing up to 30% of manganese |
| 08/12/2009 | CN201288206Y Wire feeding gun for ladle |
| 08/12/2009 | CN101503781A Pipe for crane boom and manufacturing method thereof |
| 08/12/2009 | CN101503749A Vacuum degasification system steam jet and last stage pressure air injection vacuum technology |
| 08/12/2009 | CN101503748A Argon blowing automatic connecting mechanism for steel melting technique |
| 08/12/2009 | CN101503746A Method for producing boron steel by converter |
| 08/12/2009 | CN100526495C Boron-containing casting die steel and preparation method thereof |
| 08/12/2009 | CN100526480C Dephosphorising agent for melted iron pretreatment by KR method |
| 08/12/2009 | CN100526479C Process for producing low-alloy steel excelling in corrosion resistance |
| 08/12/2009 | CN100525953C Technique for preventing surface crack of continuous casting steel billet for petroleum casing |
| 08/06/2009 | WO2009096260A1 Steel for machine structural use with excellent machinability |
| 08/05/2009 | CN201284350Y Double-station ladle furnace front wheel drive type electrode rotating elevating gear |
| 08/05/2009 | CN101497971A High-strength hardened and tempered steel and production method thereof |
| 08/05/2009 | CN101497969A High-performance weather-resisting anti-seismic steel for building and production method thereof |
| 08/05/2009 | CN101497968A Steel for microalloying lorry axle and technique for producing the same |
| 08/05/2009 | CN101497965A Steel for cutting edge of shovel of loader and digger and production method thereof |
| 08/05/2009 | CN100523262C Meta-bainite steel and application of the same in railway |
| 08/05/2009 | CN100523257C Grain-oriented electromagnetic steel sheet and process for producing the same |
| 08/05/2009 | CN100523255C Soldering steel plate in high intensity in use for ocean by large line energy, and manufacturing method |
| 08/05/2009 | CN100523254C Soldering not quenching and tempering steel plate in high intensity by large line energy, and manufacturing method |
| 08/05/2009 | CN100523253C Soldering low alloy steel plate in high intensity by large line energy, and manufacturing method |
| 08/05/2009 | CN100523252C Soldering boat deck steel in high intensity by large line energy, and manufacturing method |
| 08/05/2009 | CN100523251C High-cleanliness steel and processes for producing the same |
| 08/05/2009 | CN100523229C LF furnace refining slag used for aluminum-controlled steel |
| 07/29/2009 | EP2082069A2 Method and installation for introducing a cored wire into a bath of molten metal |
| 07/29/2009 | CN201280571Y Smelting ladle-to-ladle apparatus |
| 07/29/2009 | CN101492758A Method for controlling non-metallic inclusion in pipeline steel |
| 07/29/2009 | CN101492757A Calcium-silicon alloy metallurgical material |
| 07/29/2009 | CN100519772C Molten stainless steel dephosphorizing process and apparatus |
| 07/29/2009 | CN100519771C Ladle lining structure and slag preventing paint |
| 07/24/2009 | CA2651166A1 A post-combustion lance including an internal support assembly |
| 07/23/2009 | WO2009090226A2 Process for preparing a foaming slag former, product and use thereof |
| 07/23/2009 | WO2009089907A1 Process for preparing a foaming slag former, product and use thereof. |
| 07/23/2009 | CA2712064A1 Process for preparing a foaming slag former, product and use thereof |
| 07/22/2009 | CN201276580Y Air brick with safety indicator |
| 07/22/2009 | CN101490285A Grain refiners for steel - manufacturing methods and use |
| 07/22/2009 | CN101487076A Core cabling wire for steel melting and preparation thereof |
| 07/22/2009 | CN101487075A Method for recycling ladle residual molten steel and slag |
| 07/22/2009 | CN101487074A Calcium processing core cabling wire for producing stainless steel |
| 07/22/2009 | CN100516242C Molten iron spraying desulfurization spraying gun |