| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
|---|
| 08/27/2008 | CN101250610A Dephosphorising method for low nickel chromium molten iron or foundry iron |
| 08/27/2008 | CN101250609A Rear earth calsibar deoxidizer and preparation technique thereof |
| 08/27/2008 | CN101250608A Method for improving steel quality by directly introducing supersonic wave into molten steel |
| 08/27/2008 | CN101250607A Grain refining method for ultra-supercritical steel |
| 08/27/2008 | CN100413987C High nitrogen alloy smelting process with cathode glow region to cover melt surface |
| 08/21/2008 | DE102004025779B4 Verfahren zur verbesserten Schlackenreaktion mit metallischen Schmelzen in Öfen bei indirekter Beheizung für die gesteigerte Reinigung der Chargierung von nichtmetallischen Einschlüssen A method for improved slag reaction with metallic melts in ovens with indirect heating for the enhanced cleaning of the charging of non-metallic inclusions |
| 08/20/2008 | EP1957681A1 Snorkels for vacuum degassing of steel |
| 08/20/2008 | CN201102974Y Novel aluminum-iron combined deoxidized agent block |
| 08/20/2008 | CN201102973Y Aluminum core deoxidization iron |
| 08/20/2008 | CN201102972Y Slag-blowing type ballast scarifier |
| 08/20/2008 | CN201102971Y On-line stove-protecting and feeding device of iron-smelting blast furnace |
| 08/20/2008 | CN101245437A High collapse-resistance and hydrogen sulphide-corrosion-resistant low alloy petroleum case pipe and method of manufacturing the same |
| 08/20/2008 | CN101245434A Vehicle wheel steel and smelting method |
| 08/20/2008 | CN101245433A Wire rod for prestressed concrete steel stick and manufacturing process |
| 08/20/2008 | CN101245432A Technique for producing wire rod for low carbon drawn wire |
| 08/20/2008 | CN101245405A Vacuum refining system and method for molten steel |
| 08/20/2008 | CN101245404A Air bubble thining in process of hot metal sublimation and dispersion method |
| 08/20/2008 | CN101245403A Oxidized powder preparation for reinforcing liquid steel decarburization |
| 08/20/2008 | CN101245399A Method for applying scorification material supplementary material to convertor steelmaking |
| 08/20/2008 | CN101244835A Preliminary melting type calcium aluminate for ultra-clean steel and method of manufacturing the same |
| 08/20/2008 | CN100412223C Ultra-high strength steel with excellent corrosion resistance and fatigue resistance and its making process |
| 08/20/2008 | CN100412221C High temperature self-lubrication alloyed steel, smelting method and application thereof |
| 08/20/2008 | CN100412219C Production method of III threading reinforcing bar |
| 08/20/2008 | CN100412210C Manganese carbon alloy ball for steel-making recarburization |
| 08/20/2008 | CN100412209C Preparation of steel-smelting carburant |
| 08/20/2008 | CN100411758C A method for making semi-processed cold rolled silicon steel in thin slab continuous casting and continuous rolling process |
| 08/14/2008 | WO2008095575A1 Method for the reduction of a slag having a high degree of chromium in an electric arc furnace |
| 08/14/2008 | DE102006031687B4 Element Element |
| 08/13/2008 | CN101240397A Converter-RH-LF-continuous casting technique for producing pipe line steel |
| 08/13/2008 | CN101240362A Aluminum-containing ferroalloy for steelmaking deoxidizing |
| 08/13/2008 | CN101240361A Core-spun yarn core layer composition |
| 08/13/2008 | CN101240360A Oxide briquetting used for steelmaking alloy element and preparation method thereof |
| 08/13/2008 | CN100410411C Nitrogen-aluminium-ferroalloy without efflorescence |
| 08/13/2008 | CN100410393C Pre-deoxygenated synthetic pellet for steel making in electric arc furnace and its making process |
| 08/13/2008 | CN100409934C Recycling method for powdered ink |
| 08/06/2008 | EP1952913A1 Method for manufacture of ultra-low carbon steel slab |
| 08/06/2008 | CN101235463A Technique for directly smelting stainless steel from dephosphorization blast furnace molten iron in furnace |
| 08/06/2008 | CN101235461A Method for smelting high-nitrogen steel under normal pressure |
| 08/06/2008 | CN101235431A Convertor tapping washing fining furnace fast desulfurization method |
| 08/06/2008 | CN101235430A Impressed electric field pollution-free deoxygenation refining method and device for ladle furnace |
| 08/06/2008 | CN101235429A Steel core aluminum and manufacturing method thereof |
| 08/06/2008 | CN101235428A Calcium silicon iron core-spun yarn core layer composition |
| 08/06/2008 | CN100408702C Apex slag of ladle in use for refinement of vacuum decarburization in vacuum tank |
| 08/06/2008 | CN100408701C High-manganese low-carbon composite alloy and method for preparing same |
| 08/06/2008 | CN100408700C Silicon barium calcium manganese magnesium iron alloy and its preparation method and use |
| 07/31/2008 | US20080181807 Carbon, silicon, manganese, chromium, nickel, molybdenum and vanadium alloys |
| 07/30/2008 | EP1950317A1 Steel sheet for continuous cast enameling with highly excellent unsusceptibility to fishscaling and process for producing the same |
| 07/30/2008 | CN101230444A High-strength micro-alloy low-carbon bainite steel and production method thereof |
| 07/30/2008 | CN101230443A Smelting purification enrichment forming technique for nickel-ferro alloy |
| 07/30/2008 | CN101230437A Alloyed hot galvanizing bake hardening steel and method for manufacturing same |
| 07/30/2008 | CN100406581C Al-Mg-Fe alloy contg. trace carbo, low silicon, low phosphorus, low sulphur used for steelmaking |
| 07/30/2008 | CN100406580C Al-Mn-Ca-Fe alloy contg. trace carbon, low silicon, low phosphorus, low sulphur used for steelmaking |
| 07/30/2008 | CN100406579C Converter refined slaging medium and slagging technique |
| 07/24/2008 | WO2008018242A9 Two-phase stainless steel |
| 07/23/2008 | EP1947206A1 Low-carbon sulfur-containing free-cutting steel with excellent cuttability |
| 07/23/2008 | CN101225455A Material-spraying device for iron-smelting furnace interrupted front molten iron pre-treatment |
| 07/23/2008 | CN101225454A Pre-deoxidation recarburization process for arc furnace steel-smelting molten steel with slag |
| 07/23/2008 | CN101225453A Electric furnace smelting method for low-carbon low-silicon steel |
| 07/23/2008 | CN101224489A Covering agent with high melting point and high alkalinity |
| 07/23/2008 | CN100404717C Free-cutting steel and fuel injection system component using the same |
| 07/23/2008 | CN100404466C Skimming tool |
| 07/22/2008 | US7402275 Powder body melting burner |
| 07/17/2008 | WO2008083594A1 Lime-based additive for steel smelting and the preparation method thereof |
| 07/17/2008 | WO2008040915A3 Method and installation for introducing a cored wire into a bath of molten metal |
| 07/16/2008 | EP1944382A2 Method for the introduction of inorganic solid bodies into hot liquid melts |
| 07/16/2008 | CN201087207Y Iron alloy material heating system |
| 07/16/2008 | CN201087203Y Hinge type multi-line wire feeding machine |
| 07/16/2008 | CN201087202Y Main transmission unit device of wire feeding machine |
| 07/16/2008 | CN201086050Y Spray repair device of inset tube |
| 07/16/2008 | CN101220441A Meta-bainite steel and application of the same in railway industry |
| 07/16/2008 | CN101220401A System and method for smelting and shaping rolled steel |
| 07/16/2008 | CN101219901A Desulfurization ladle brick |
| 07/16/2008 | CN101219462A High-energy hot metal purifying agent and method for producing the same |
| 07/16/2008 | CN100402690C Mirror large-die-block preparing and producing method of 4Cr16Mo die |
| 07/16/2008 | CN100402671C Carburating method in steel smelting |
| 07/10/2008 | WO2008081763A1 Flux for obtaining steel reduced in nitrogen, oxygen, and sulfur contents through smelting |
| 07/10/2008 | WO2008081750A1 Iron-based powder material, method for producing the same, and briquette for steelmaking material |
| 07/10/2008 | WO2008081674A1 Silicon-killed steel wire material and spring |
| 07/10/2008 | WO2008081673A1 Si KILLED STEEL WIRE MATERIAL HAVING EXCELLENT FATIGUE PROPERTY AND SPRING |
| 07/09/2008 | CN101215671A Material capable of resisting zinc solution corrosive wear and manufacturing method thereof |
| 07/09/2008 | CN101215669A High-strength thick steel plate for large-scale petroleum storing tank and low-cost manufacturing method thereof |
| 07/09/2008 | CN101215667A Low-carbon superfine inclusion reinforcement screw-thread steel and manufacturing method thereof |
| 07/09/2008 | CN101215620A Micro-alloying refined synthetic slag and preparation method thereof |
| 07/09/2008 | CN101215619A Method for extracting vanadium and removing phosphorus from vanadium-containing molten iron and steel-smelting technique using the same method |
| 07/09/2008 | CN101215618A Method for smelting ultra-low-carbon steel |
| 07/09/2008 | CN101214531A Fluent metal thermal insulation deslagging agent |
| 07/09/2008 | CN101214528A New use and technique of silicasol |
| 07/08/2008 | US7396423 Method for manufacturing steel plate having superior toughness in weld heat-affected zone |
| 07/08/2008 | US7396421 alloys having calcium and magnesium oxide-based inclusions, having excellent in corrosion resistance in brines, used for pipes or casings |
| 07/08/2008 | US7396378 Degassing a refined molten steel produced in an arc melting furnace or a converter to a ladle furnace ; casting into an ingot; tapping deoxidation; deoxidizer including manganese, aluminum, and silicon |
| 07/03/2008 | US20080156145 Treating molten calcium-silicate based slag with a molten ferrosilicon alloy, the phosphorous in the slag is transferred to the ferrosilicon alloy; removing a calcium-silicate based slag containing less than 3 ppmw phosphorous |
| 07/02/2008 | EP1939311A2 Molten metal bath flow agent, use thereof and method for treating a molten metal bath and method for producing a molten metal bath flow agent |
| 07/02/2008 | EP1939307A2 Lime-based additive for steel smelting and the preparation method thereof |
| 07/02/2008 | CN101210303A High-strength anti-fatigue steel products and manufacturing method thereof |
| 07/02/2008 | CN101210299A High ductility steel strip for J55 petroleum sleeve and manufacturing method thereof |
| 07/02/2008 | CN101209491A Method for casting printing machine as-cast nodular iron roller body |
| 07/02/2008 | CN100398679C Method of preparing Mg, Sr alloy by vacuum heat reduction |
| 07/02/2008 | CN100398670C Compound deoxidizer in calcium series |
| 07/02/2008 | CN100398668C Technological process and apparatus for heating high concentration CO and other reducing gas |
| 07/02/2008 | CN100398230C Covering means for a top slag, method for the production thereof and use of the covering means |