| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 06/26/2008 | WO2007051868A3 Method and device for the inoculation of products and/or additives in casting ladles and furnaces for casting parts |
| 06/26/2008 | US20080149298 Low carbon steel sheet and low carbon steel slab and process for producing same |
| 06/25/2008 | CN101205589A Soft ferritic stainless steel and manufacture method thereof |
| 06/25/2008 | CN101205586A Method for smelting high-temperature alloy steel P91 |
| 06/25/2008 | CN101205568A Method for refining high-niobium pipeline steel |
| 06/25/2008 | CN100396798C Slag forming element in use for refining molten steel, production method, and slagging method |
| 06/19/2008 | WO2008073179A1 Tensor rod |
| 06/19/2008 | US20080142123 Ferritic stainless steel casting and sheet and method for producing the same |
| 06/18/2008 | CN101200791A Low-cost oil casing pipe steel and method for producing the same |
| 06/18/2008 | CN100395364C Method for molten steel recarburization and vanadium alloying |
| 06/17/2008 | CA2198676C Steel, steel sheet having excellent workability and method of producing the same by electric furnace-vacuum degassing process |
| 06/12/2008 | WO2008070360A2 Refinement of steel |
| 06/12/2008 | WO2008068916A1 Process for producing extra-low-sulfur low-nitrogen high-cleanliness steel through melting |
| 06/12/2008 | WO2008068835A1 Process for producing ingot of ultralow-sulfur high-cleanliness steel |
| 06/12/2008 | US20080136070 Gas Bubbling Element and Corresponding Gas Bubbling System |
| 06/12/2008 | CA2668199A1 Refinement of steel |
| 06/11/2008 | EP1930460A1 Low alloy steel |
| 06/11/2008 | CN201071379Y Bottom outside refrigerating mechanism of liquid steel sublimation vacuum treatment equipment |
| 06/11/2008 | CN201071378Y Hot metal desulfurization propulsion agitator head |
| 06/11/2008 | CN101195892A Nichrome steel alloy for smelting stainless steel and producing method thereof |
| 06/11/2008 | CN101195890A High chromium abrasion-proof cast iron abrasive disc and manufacturing method thereof |
| 06/11/2008 | CN101195852A Deoxidizing agent for steel-smelting |
| 06/11/2008 | CN100393903C Producing method of high-toughness low-alloy constructional steel |
| 06/11/2008 | CN100393892C Desulfur technology of phosphorus molten pig iron for precalcining anode pouring |
| 06/10/2008 | US7384594 Method for the pyrometallurgical treatment of metals, metal melts and/or slags and injection device |
| 06/05/2008 | WO2008064798A1 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 |
| 06/05/2008 | WO2008064797A1 Method and device for producing pig-iron based stainless steel without using a supply of electrical energy |
| 06/05/2008 | DE102006056672A1 Verfahren und Vorrichtung zur Rostfreistahlerzeugung ohne elektrische Energiezufuhr auf der Basis von Roheisen Method and apparatus for stainless steelmaking without electric power supply on the basis of pig iron |
| 06/05/2008 | DE102006056671A1 Verfahren und Vorrichtung zur Rostfreistahlerzeugung ohne elektrische Energiezufuhr auf der Basis von in einer DDD-Anlage vorbehandeltem Roheisen Method and apparatus for stainless steel production without electric power supply on the basis of pre-treated in a DDD-conditioning pig iron |
| 06/04/2008 | CN201068463Y Apparatus for in situ extracting foreign material of melted steel |
| 06/04/2008 | CN201068462Y Oxygen gun sprinkler |
| 06/04/2008 | CN101194031A Manufacture of ferroalloys |
| 06/04/2008 | CN101191181A Alloy steel for gear wheel and preparation method thereof |
| 06/04/2008 | CN101191179A High speed steel material and preparation method thereof |
| 06/04/2008 | CN101191173A Method for smelting low-silicon high-manganese steel |
| 06/04/2008 | CN101191172A Producing method for preventing aluminum-manganese-iron alloy pulverizing |
| 06/04/2008 | CN101191171A Method for processing ultra-pure ferrite stainless steel by using ladle refining furnace to control carbon and nitrogen content |
| 06/04/2008 | CN101191170A Method for smelting stainless steel oxidizing slag by using argon oxygen furnace |
| 06/04/2008 | CN101191148A Ladle desulfurization refining slag |
| 06/04/2008 | CN101190455A Environment-friendly type multifunctional granular high-efficiency ladle covering agent |
| 06/04/2008 | CN100392130C Technology of one-step smelting medium carbon ferrochrome from chromite utilizing mine smelting furnace |
| 06/04/2008 | CN100392114C Steel-smelting and carburating method |
| 06/04/2008 | CN100392113C Strengthening, increasing temperature, sulphur and phosphorus removing composite powder spraying agent for interal cupola iron melt |
| 05/29/2008 | DE102007056469A1 Legierungsfeineinstellungsverfahren Alloy fine adjustment process |
| 05/28/2008 | CN201065418Y Gas-blowing deslagging device for molten iron pot narrow gap |
| 05/28/2008 | CN201065417Y Structure for preventing air brick cup leaking steel |
| 05/28/2008 | CN101187316A Exhaust guide assembly for variable giometry shape turbocharger with improved high-temperature endurance |
| 05/28/2008 | CN101187315A Exhaust gas guide assembly, heat resisting component and method for manufacturing shaped material for adjustable blade applicable thereto |
| 05/28/2008 | CN101187314A Exhaust guide assembly for variable giometry shape turbocharger with improved high-temperature endurance |
| 05/28/2008 | CN101187313A Exhaust guide assembly for variable giometry shape turbocharger with improved high-temperature endurance |
| 05/28/2008 | CN101186995A Medium carbon bearing steel and its preparation method |
| 05/28/2008 | CN101186994A Micro-alloying steel for oil gas transport seamless pipeline and its preparation method |
| 05/28/2008 | CN101186955A Multifunctional oxygen gun electromechanical protection mechanism |
| 05/21/2008 | CN101182622A High intensity, corrosion resistant and high ductility steel for mooring chain and production process thereof |
| 05/21/2008 | CN101182592A Ladle argon-blown quick-replaceable joint device |
| 05/21/2008 | CN101182591A Revolving furnace production process of low oxygen kind high-carbon chromium bearing steel |
| 05/21/2008 | CN100389210C Additive of removing impurities in molten metal |
| 05/20/2008 | US7374623 Metallurgical product of carbon steel, intended especially for galvanization, and processes for its production |
| 05/15/2008 | WO2008056835A1 An apparatus for moving the snorkel in chemical heating in snorkel of refining utility |
| 05/15/2008 | WO2008056809A1 Electromagnetic stirrer |
| 05/14/2008 | CN201058878Y Converter argon-station wire-feeding tipping device |
| 05/14/2008 | CN101177761A Crane gib arm rack pipe and manufacturing method |
| 05/14/2008 | CN101177756A Method for melting high-alumina weakly magnetic metal material by medium frequency induction furnace |
| 05/14/2008 | CN101177755A Method for smelting high-speed steel by employing oxide ore |
| 05/14/2008 | CN101177753A Melt treating method of high-vanadium high-speed steel roller material for various rolling machines |
| 05/14/2008 | CN101177724A Knotting method for integral vacuum circulating degasification furnace vacuum chamber |
| 05/14/2008 | CN101177723A Method for controlling concentration of oxygen in molten steel |
| 05/14/2008 | CN101177722A Al-Ca matter converter slag deacidizing modifier |
| 05/14/2008 | CN101177721A Multifunctional composite refining agent for steel-smelting |
| 05/14/2008 | CN100387729C Molten-steel deoxidation agent |
| 05/08/2008 | WO2008054243A1 Method for vacuum refining steel in a ladle, device (variants) and socket for carrying out said method |
| 05/08/2008 | US20080105086 For introducing fluxes and alloying additives in liquid steel bath, by releasing said additives close to the bottom of a ladle by injecting a prefabricated cored wire at a speed depending on the grade of liquid steel, temperature, ladle size, and liquid column height; increases the calcium yield |
| 05/07/2008 | CN101173343A High-strength abrasion-proof cast steel lining board and manufacturing method thereof |
| 05/07/2008 | CN101173329A Method for producing free-cutting steel |
| 05/07/2008 | CN101173323A Multifunctional slagging material findings and method for producing the same |
| 05/02/2008 | WO2008049673A1 Method of regulating the output of carbon monoxide in a metallurgical melting process |
| 05/02/2008 | WO2008049514A1 Method and apparatus for monitoring, controlling and/or regulating the splashing behaviour of a metal melt |
| 05/02/2008 | WO2008029011A3 Steel plate for producing light structures and method for producing said plate |
| 05/02/2008 | CA2667541A1 Method of regulating the output of carbon monoxide in a metallurgical melting process |
| 04/30/2008 | EP1440174B1 Iterative cycle process for carbon supersaturation of molten metal and solid metals obtained thereby |
| 04/30/2008 | DE102006050888A1 Control of carbon dioxide during steel production comprises feeding oxygen into melt to remove carbon as carbon dioxide, actual amount produced being measured and compared with desired value with regard to oxygen and carbon present |
| 04/30/2008 | CN101168817A Method for increasing nitrogen content of nitrogen-containing clean steel |
| 04/30/2008 | CN101168787A Calcium-calcium aluminate core-spun yarn for steel smelting |
| 04/30/2008 | CN101168786A Converter steel-smelting technique |
| 04/30/2008 | CN101168191A Method for casting megawatt-stage wind electric generator set from minus 20 degree low-temperature cast Ni-free ball iron |
| 04/30/2008 | CN100385018C Reduction dephosphorization method of ultra-low carbon austenitic stainless steel |
| 04/29/2008 | US7364690 Device for injecting a treatment gas into a molten metal |
| 04/24/2008 | WO2006121817A3 Fluid-cooled duct |
| 04/23/2008 | EP1914497A1 Electromagnetic agitator |
| 04/23/2008 | CN201049958Y Double return circuit water-cooling structure for electric cross arm lifter |
| 04/23/2008 | CN100383256C Dephosphorization agent for chromium-containing molten iron |
| 04/23/2008 | CN100383255C Petrol coke graphitization prepared carburant and petrol coke graphitization furnace filling technology |
| 04/16/2008 | CN201046975Y Molten iron desulfurization stir head |
| 04/16/2008 | CN101161842A Method for determining Ti addition amount of 700MPa grade Ti micro-alloying high-strength weathering steel |
| 04/16/2008 | CN101161828A Magnesium desulphurization method for molten iron pretreatment and powder used thereby |
| 04/16/2008 | CN101161827A Two-step blowing furnace outer refining process |
| 04/16/2008 | CN101161826A Blowing powder for molten steel secondary refining and preparation method and methods for using same |
| 04/16/2008 | CN101161825A Novel process for steel-smelting |
| 04/16/2008 | CN100381596C Method for producing rare-earth metal screw-rod |
| 04/16/2008 | CN100381591C Method for producing dunite melted pellet |