| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 04/16/2008 | CN100381587C Process for preparing low-alloy wear-resistant steel without high temperature heat treatment |
| 04/16/2008 | CN100381586C Cored wire for deoxidation of molten steel |
| 04/16/2008 | CN100381585C Iron core aluminum-iron composite deoxidizing agent |
| 04/16/2008 | CN100381584C Method for producing slag forming agent contg. high calcium and low silicone by corundum arc furnace |
| 04/16/2008 | CN100381583C Steel smelting and carburating method |
| 04/09/2008 | CN101157966A Refined-smelting ladle furnace calcium carbide deoxidation method |
| 04/09/2008 | CN101157965A Low-cost arc furnace tapping deoxidization technique |
| 04/09/2008 | CN101157964A Molten steel composite purifying agent for secondary refining and preparing method |
| 04/08/2008 | US7354549 Nitrogen trapping agent is added to measurement hopper; melting, pouring into mold; cooling, solidification, casting |
| 04/08/2008 | US7354547 Molten-metal transferring ladle and molten-metal tapping method |
| 04/08/2008 | CA2398344C Method for treating slags or slag mixtures on an iron bath |
| 04/03/2008 | WO2008038087A1 Production of an inert blanket in a furnace |
| 04/03/2008 | DE102006046158A1 Desulfurizing agent for the metallurgical treatment of pig iron by means of a pneumatic stream through a lance contains calcium carbide with a specified size distribution |
| 04/02/2008 | EP1601802B1 Elevated discharge gas lift bubble pump and furnace for use therewith |
| 04/02/2008 | CN101153377A Leveler roll and manufacturing process thereof |
| 04/02/2008 | CN101153371A High-strength cold-formed hot continuous rolled steel plate and method of preparing the same |
| 04/02/2008 | CN101153352A Solid melting alfer deoxidizing agent |
| 04/02/2008 | CN101153351A Aluminum-silicomanganese carbon alloy for carbon pickup, deoxidization and silicon-manganese alloying of steel-smelting and method of producing the same |
| 04/02/2008 | CN100378242C Highly ductile steel sheet and method of manufacturing the same |
| 04/01/2008 | CA2332724C Apparatus for injecting solid particulate material into a vessel |
| 03/27/2008 | DE102006048028B3 Cored wire for treating molten metal by wire injection, comprises an outer casing formed by metal strip, and a filling material, which is in the form of granules and/or powder and which is accommodated in a closed cavity |
| 03/26/2008 | CN101148737A Boron-containing steel and preparation method thereof |
| 03/26/2008 | CN101148734A Smelting method for ferrite stainless steel mother liquid |
| 03/26/2008 | CN101148687A Special-purpose slag adjusting agent for vanadium-titanium-iron-water-magnesium desulfurization |
| 03/26/2008 | CN101147958A Speed-regulating bag-rocking desulfurizing machine |
| 03/26/2008 | CN101147954A Investment precision casting technology for producing automobile I-shaped front axle |
| 03/26/2008 | CN100376701C Method for preparing low-silicon high-titanium ferroalloy employing lower ignition method |
| 03/25/2008 | US7347904 Decarburizing molten steel; pre-deoxidizing by adding aluminum , titanium and lanthanum and/or cerium; workability, formability; automobile plates |
| 03/25/2008 | US7347886 Method for introducing additives into fluids |
| 03/20/2008 | WO2008031473A1 Cored wire and method and device for the continuous production of a cored wire |
| 03/19/2008 | CN201037147Y Anti-seep ladle furnace argon gas blowing device |
| 03/19/2008 | CN101144139A Steel for high-strength weather-proof low-alloy electric force bar and preparing method thereof |
| 03/19/2008 | CN101144138A Steel plate for low temperature pressure container and producing method thereof |
| 03/19/2008 | CN101143384A Large scale casting sliding plate blowing Ar drainage casting technology |
| 03/12/2008 | CN201033792Y Steel cored aluminium |
| 03/12/2008 | CN201033791Y Higher size core-spun yarn |
| 03/12/2008 | CN101139687A Weather-resistant hot rolled broad steel strip and method for manufacturing same |
| 03/12/2008 | CN101139685A High-strength antifatigue steel products and method for manufacturing same |
| 03/12/2008 | CN101139682A Straight joint resistance welding oil annular tube steel and manufacturing method thereof |
| 03/12/2008 | CN101139679A Method for smelting stainless steel by top and bottom combined blown converter |
| 03/12/2008 | CN101139644A High-basicity refining slag for slag washing of revolving furnace steel-making |
| 03/12/2008 | CN101139643A Silicon-calcium-magnesium-ferrous alloy used as steel-making deoxidizer |
| 03/12/2008 | CN101139642A Method for refining crude ferro nickel produced by lateritic nickel |
| 03/12/2008 | CN100374582C Steel smelting and carburating method |
| 03/05/2008 | CN201031249Y Ferrotitanium line products rapid heating device |
| 03/05/2008 | CN201031248Y Ferrotitanium line products smelting device |
| 03/05/2008 | CN201031247Y Ferrotitanium line products smelting complete equipment |
| 03/05/2008 | CN201031239Y Water model trial air ballooning unit used for steel-smelting process |
| 03/05/2008 | CN201031238Y Oxygen spray pistol used for steel-smelting furnace |
| 03/05/2008 | CN201031237Y Molten iron blowing desulfuring spray gun |
| 03/05/2008 | CN201031236Y Molten iron desulfurize agitator head |
| 03/05/2008 | CN101135030A Weather-resistant hot rolled narrow steel strip and method for manufacturing same |
| 03/05/2008 | CN101135026A Vertical grinding hollow abrading-resistant ball chemical composition control and thermal treatment process |
| 03/05/2008 | CN101135021A Aluminium magnesium ferroalloy for molten steel deoxidization desulfuration and alloying and preparation method thereof |
| 03/05/2008 | CN101134987A Desulfurizing agent for non-oriented silicon steel |
| 03/05/2008 | CN101134986A Passive granule alloy and preparation method thereof |
| 03/05/2008 | CN101134228A Vibrating material delivering flow following gestating device |
| 03/05/2008 | CN100372948C Low-silicon low-carbon aluminium full killed steel refining method |
| 03/04/2008 | US7338630 Free-cutting steel and fuel injection system component using the same |
| 02/28/2008 | WO2008023863A1 A ferro-alloy inserting apparatus with reduced absorption of oxygen and absorption of nitrogen and inserting method thereof |
| 02/28/2008 | US20080047396 Method for Controlling a Molten Metal Bath Bubbling in a Metallurgical Vessel and a Device for Carrying Out Said Method |
| 02/27/2008 | EP1342798B9 Process for producing high-nitrogen ultralow-carbon steel |
| 02/27/2008 | CN100371481C Method for producing high titanium iron containing low oxygen and low nitrogen |
| 02/27/2008 | CN100371464C Molten steel composite refining agent |
| 02/27/2008 | CN100371105C Molten steel covering agent and its preparation method |
| 02/21/2008 | WO2006039744A3 Electric arc furnace steelmaking |
| 02/20/2008 | EP1888795A2 Continuous steel production and apparatus |
| 02/20/2008 | EP1888793A1 Manufacture of ferroalloys |
| 02/20/2008 | CN201024186Y Multifunctional top gun sealing protector for molten steel vacuum refining |
| 02/20/2008 | CN201024185Y Slag line elastic gasket iron water pretreatment oxygen blowing blast gun |
| 02/20/2008 | CN101126141A Meta-bainite steel and application of the same in railway |
| 02/20/2008 | CN101126116A LF furnace refining slag used for aluminum-containing steel |
| 02/20/2008 | CN101126115A Method for preparing high-sulfur iron-containing series desulfurizing agent |
| 02/20/2008 | CN101126114A Granular charring rice husk thermal insulation agent |
| 02/20/2008 | CN100370050C Guide and guard roller for guiding steel billet in high speed wire rolling machine and its making process |
| 02/20/2008 | CN100370036C Slit type ladle bottom blowing powder injection process and apparatus |
| 02/14/2008 | WO2008018242A1 Two-phase stainless steel |
| 02/14/2008 | US20080034922 Method of Degassing Molten Metal |
| 02/13/2008 | CN101121993A Method for producing high abrasion-proof austenitic manganese steel hammer |
| 02/13/2008 | CN101121992A Method for producing strong annealed steel hot-rolled sheet coil |
| 02/13/2008 | CN101121990A Quasi-as-cast bainite gray cast iron cylinder jacket and preparation method thereof |
| 02/13/2008 | CN101121988A Smelting method for steel used for low-temperature pressure container |
| 02/13/2008 | CN101121987A Smelting method for titanium-containing austenitic stainless steel |
| 02/13/2008 | CN101121953A LF furnace refining slag used for aluminum-controlled steel |
| 02/13/2008 | CN101121952A Micro-carbon, low-silicon, low-phosphor and low-sulphur aluminum-magnesium-calcium-iron alloy used for smelting steel and deoxidizing |
| 02/13/2008 | CN101121951A Method for manufacturing steel smelting auxiliary agent |
| 02/13/2008 | CN100368581C Toughening method for casting high-boron wear-resistant alloy |
| 02/13/2008 | CN100368577C Process for producing fine type steel crystal particle |
| 02/07/2008 | WO2008016158A1 Free-cutting stainless steel and process for producing the same |
| 02/06/2008 | CN201016118Y Furnace wall oxygen gun protective equipment |
| 02/06/2008 | CN101120104A Method for producing extremely low carbon steel sheet and extremely low carbon cast piece having excellent surface characteristics, workability and formability |
| 02/06/2008 | CN101117691A Technique for processing heavy caliber pipes |
| 02/06/2008 | CN101117689A 03Cr22Ni4NbN austenite-ferritic stainless steel and production technology therefor |
| 02/06/2008 | CN101117686A Mabe wear-resistant steel |
| 02/06/2008 | CN100366777C High temperature creep-resisting furnace shell material and its preparation method |
| 02/06/2008 | CN100366776C High-carbon steel wire rod with high strength and high toughness |
| 01/31/2008 | US20080025865 Degassing a refined molten steel produced in an arc melting furnace or a converter to a ladle furnace; casting into ingot; tapping deoxidation; deoxidizer including manganese, aluminum, and silicon |
| 01/30/2008 | CN201012929Y Side-blowing argon vacuum circulating degasification furnace evacuated chamber |
| 01/30/2008 | CN101113507A Niobium, vanadium composite micro-alloying low-carbon boron steel for cold heading and production method thereof |
| 01/30/2008 | CN101113486A Melted iron desulfuration pretreatment furnace slag modifier and method for making same |