| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 11/04/2008 | US7445750 Toughness; cutting tools and of metrological instruments |
| 11/04/2008 | US7445678 Maraging steel and method of producing the same |
| 10/29/2008 | EP1984526A1 Conditioned quicklime for injection to a molten bath of a steel-making vessel |
| 10/29/2008 | CN201141035Y Integral ring current pipe of vacuum circulating degasification stove |
| 10/29/2008 | CN101296766A Method for manufacture of ultra-low carbon steel slab |
| 10/29/2008 | CN101294771A Inducing swirl in a gas flow |
| 10/29/2008 | CN101294235A Composite slag for smelting stainless steel with back method at same time of desulfurization dephosphorization |
| 10/29/2008 | CN101294234A Desulphurizing agent for smelting stainless steel with back method |
| 10/29/2008 | CN101294233A Desilication demanganization method at same time of preprocessing hot metal |
| 10/29/2008 | CN101293321A Hot rolled steel plate for punch process and method of manufacturing the same |
| 10/29/2008 | CN100429324C Aluminum-manganese-carbon alloy ball for steelmaking deoxidization and recarburization and preparation method thereof |
| 10/23/2008 | WO2008125700A1 Hardened and tempered steel and method for producing parts of said steel |
| 10/23/2008 | US20080257110 Degassing to remove hydrogen and nitrogen prior to casting; furnaces, metallurgy |
| 10/23/2008 | US20080257106 Process for Producing a High-Cleanliness Steel |
| 10/22/2008 | EP1981666A1 Method of controlling the flow of adjuvant for the casting of a molten metal |
| 10/22/2008 | CN201136880Y Multifunction oxygen gun electromechanical protection arrangement |
| 10/22/2008 | CN201136879Y Quick-replaceable joint device for ladle argon blowing |
| 10/22/2008 | CN101289731A CrMnTi narrow hardenability strip pinion steels and method of manufacture |
| 10/22/2008 | CN101289724A Novel composite inoculant for austenitic manganese steel |
| 10/22/2008 | CN101289723A Novel composite modifier for austenitic manganese steel |
| 10/22/2008 | CN101289722A Double- modification method for advanced austenitic manganese steel |
| 10/22/2008 | CN100427630C High strength atmospheric corrorsion resistant section steel and production method thereof |
| 10/22/2008 | CN100427627C Duplex stainless steel and manufacturing method thereof |
| 10/21/2008 | US7438848 Metallurgical lance |
| 10/21/2008 | US7438740 Compression molded industrial waste; reducing pollutants |
| 10/16/2008 | WO2008123971A1 Wire injection lance nozzle insert |
| 10/16/2008 | WO2008122621A1 High-purity calcium compounds |
| 10/16/2008 | WO2005098054A9 Method in connection with steel production |
| 10/16/2008 | CA2682348A1 Wire injection lance nozzle insert |
| 10/15/2008 | CN201132840Y Lance for hot metal magnesium-blowing desulfurating |
| 10/15/2008 | CN101285151A Petroleum case pipe with high strength and toughness and producing method thereof |
| 10/15/2008 | CN101285149A Process for smelting special alloy steel |
| 10/15/2008 | CN101285148A Method for preparing high nitrogen and nickel-less austenitic stainless steel |
| 10/15/2008 | CN101285112A Coating granule magnesium desulfurizer and preparation method thereof |
| 10/15/2008 | CN101284305A High manganese steel casting grain refinement casting technique |
| 10/14/2008 | CA2486439C A calcium-silicate based slag for treatment of molten silicon |
| 10/14/2008 | CA2370437C Treatment for improving the castability of aluminium killed continuously cast steel |
| 10/09/2008 | WO2008120574A1 Steel ingot for forging and integral crankshaft |
| 10/09/2008 | WO2008119317A1 Melt metallurgical method for the production of metal melts, and transition metal-containing charge for use therein |
| 10/08/2008 | EP1978123A1 Steels with few alumina clusters |
| 10/08/2008 | CN201128745Y Large circulation dip pipe for vacuum degassing device |
| 10/08/2008 | CN101280397A Composite low-carbon leaded steels and preparation thereof |
| 10/08/2008 | CN101280390A High-strength hot rolled steel plate and manufacturing method thereof |
| 10/08/2008 | CN101280389A Steel belt for spoke of vehicle wheel and manufacturing method thereof |
| 10/08/2008 | CN101280387A Steel belt for rim of vehicle wheel and manufacturing method thereof |
| 10/08/2008 | CN100424212C Aluminium-magnesium-iron alloy used for steel melt refining agent |
| 10/08/2008 | CN100424211C Modified steel and its production method |
| 10/08/2008 | CN100424196C Lf furnace steel slag ball |
| 10/08/2008 | CN100424192C Self-cooling iron liquid pretreating spray gun |
| 10/02/2008 | US20080236778 Wire injection lance nozzle insert |
| 10/02/2008 | US20080236334 increasing the content of an alloy constituent by supplying metal melts to a melting vessel with slag covering the melt; alloying |
| 10/02/2008 | DE102007015585A1 Schmelzmetallurgisches Verfahren zur Herstellung von Metallschmelzen und übergangsmetallhaltiger Zuschlagstoff zur Verwendung in diesen Melting metallurgical method of producing metal melts and transition metal-containing additive for use in these |
| 10/01/2008 | EP1974063A1 Method for manufacturing ferritic stainless steel slabs with equiaxed grain structures and the ferritic stainless steel manufactured by it |
| 10/01/2008 | CN201125255Y Spray gun for desulfuration |
| 10/01/2008 | CN201125254Y Molten iron save all |
| 10/01/2008 | CN101275195A Method for realizing direct nickel alloying in stainless steel smelting process by electric arc furnace |
| 10/01/2008 | CN101275176A Production method for high-basicity hollow particle heat-insulating hot metal covering flux |
| 10/01/2008 | CN101275175A Method for performing Yt-based heavy rare earth modification on high manganese steel |
| 10/01/2008 | CN101275174A Nitrogen content control method for smelting stainless steel by vacuum oxygen decarburization device |
| 10/01/2008 | CN100422349C Prefused refined slag modified aluminium slag ball and its preparing method |
| 10/01/2008 | CN100422086C Synthotic fluospar |
| 09/24/2008 | EP1215288B1 Ladle refining device and use of the ladle in a refining method |
| 09/24/2008 | CN101270457A Grinding ball and manufacturing technique |
| 09/24/2008 | CN101270432A Technique for directly melting vanadium steel in ladle liquid with inert gas inject V2O5 powder |
| 09/24/2008 | CN101270403A Slugging fluxing agent of steel-smelting revolving furnace |
| 09/18/2008 | WO2008070360A3 Refinement of steel |
| 09/17/2008 | EP1794330A4 Feed apparatus and portable dust collector |
| 09/17/2008 | CN101268208A Low-carbon sulfur-containing free-cutting steel with excellent cuttability |
| 09/17/2008 | CN101265546A Method for producing spheroidal graphite cast iron from waste steel |
| 09/17/2008 | CN100419091C External desulfurization method for molten iron by magnesium bar |
| 09/10/2008 | CN101260501A High-boron low-carbon abrasion resistant cast steel and heat treatment method thereof |
| 09/10/2008 | CN101260499A Boron-containing casting die steel and preparation method thereof |
| 09/10/2008 | CN101260497A Boron-containing high-chromium abrasion-proof cast iron and preparation method thereof |
| 09/10/2008 | CN101260486A Low-nitrogen low-aluminum ferrotitanium, manufacturing method thereof and core-spun yarn |
| 09/10/2008 | CN101260456A Modification of molten iron pretreatment pipe bend spray gun structure and optimization of refractory materials used for the same |
| 09/10/2008 | CN101260455A Preparation of calcium-iron alloy by using calcium carbide as raw material and calcium-containing composite desoxidant |
| 09/10/2008 | CN101260454A Preparation of calcium-iron alloy for smelting steel by using calcium carbide as raw material and calcium-containing composite desoxidant |
| 09/10/2008 | CN101260453A Calcium aluminum pressing block used for steel-smelting desoxidant and preparation method thereof |
| 09/10/2008 | CN101260452A Molten iron pretreatment slag-gathering removing agent and preparation method thereof |
| 09/10/2008 | CN101260451A Desiliconization molten iron rare slag antifoaming agent and preparation method thereof |
| 09/10/2008 | CN101260450A Micro-alloy composite core-spun yarn for high-strength structure steel |
| 09/10/2008 | CN100417626C Coated granulated raw materials for refractory products and producing method thereof and use of granulated raw materials |
| 09/09/2008 | CA2230297C Bottom-blown gas blowing apparatus for a molten metal ladle |
| 09/04/2008 | US20080211147 System for releasing gas into molten metal |
| 09/04/2008 | US20080211146 Installation for Supplying Materials into Metallurgical Unit |
| 09/03/2008 | EP1963541A1 An improved lance for ld steelmaking |
| 09/03/2008 | CN201109787Y Two-phase concentric winding ladle furnace bottom magnetic stirrer |
| 09/03/2008 | CN101258256A 低合金钢 Low Alloy Steel |
| 09/03/2008 | CN101255531A Production method of low-Ti pinion steel |
| 09/03/2008 | CN101254527A Method for producing low carbon bainite high-strength steel based on sheet bar continuous casting and rolling process flow |
| 09/03/2008 | CN100415926C Microalloyed nickel chromium high-temperature alloy material and method for preparing the same |
| 09/02/2008 | CA2429548C Coherent jet system with single ring flame envelope |
| 08/28/2008 | WO2007102881A3 Composition for reducing steelmaking slag |
| 08/28/2008 | US20080202289 Alloy containing lithium, silicon and iron |
| 08/27/2008 | CN201106057Y Molten steel tank tipping |
| 08/27/2008 | CN101253379A Method for manufacturing a refractory ceramic product, use of said product, and method for modifying a melt by means of the product |
| 08/27/2008 | CN101250676A Aluminum ferroboron composite intermediate alloy and method of use thereof |
| 08/27/2008 | CN101250670A Non-nickel low-chromium austenite 0CR13Mn14CuN stainless acid-resistant steel |
| 08/27/2008 | CN101250660A Method for vacuum smelting titanium alloy containing titanor metal |
| 08/27/2008 | CN101250659A Method for improving and stabilising boron recovery rate for vacuum smelting steel containing boron |