| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 04/01/2009 | CN101397626A High intensity and high-toughness hot-rolled steel sheet and method for producing the same |
| 04/01/2009 | CN101397600A Method for desulphurization of passive molten magnesium and iron |
| 04/01/2009 | CN101397599A Molten steel coolant for vacuum refining |
| 04/01/2009 | CN100473737C Wear-resistant bainite cast steel liner plate and manufacture process thereof |
| 03/25/2009 | EP2039785A1 Ladle steel deoxidation method |
| 03/25/2009 | CN101392351A High efficiency and high strength dynamo steel and production method thereof |
| 03/25/2009 | CN101392350A Extremely low yield point steel plate and production method thereof |
| 03/25/2009 | CN101392349A Super high chromium wear and corrosion resistant cast iron and preparation technology thereof |
| 03/25/2009 | CN101392312A Postcombustion furnace in RH vertical vacuum chamber |
| 03/25/2009 | CN101392311A RH-OB molten steel refining method |
| 03/25/2009 | CN101392310A Sulfur-fixing agent for hot metal pretreatment of magnesium injection and deep desulphurization and desulphurization method thereof |
| 03/25/2009 | CN101392309A Slag conglomeration agent for hot metal pretreatment of magnesium injection and deep desulphurization and use method thereof |
| 03/25/2009 | CN101392308A Molten steel deoxygenation method for thinning solidification structure |
| 03/25/2009 | CN101392307A Environmental friendly energy-saving electric furnace direct steel-making method and device thereof |
| 03/25/2009 | CN101391288A Pouring box covering agent for smelting low-carbon high-cleanliness steel |
| 03/25/2009 | CN100472163C Stirring device and melting furnace therewith |
| 03/25/2009 | CN100471974C Bainite steel rail with excellent anti-fatigue performance and its production method |
| 03/19/2009 | US20090071294 Rotary Stirring Device for Treating MoltenMetal |
| 03/18/2009 | EP2036992A1 Steel for forging, process for producing the same, and forged article |
| 03/18/2009 | EP2035586A1 Grain refiners for steel - manufacturing methods and use |
| 03/18/2009 | CN101389774A Blowing lance for refining, blowing lance apparatus for refining, method of desiliconizing of molten iron, and method of pretreatment of molten iron |
| 03/18/2009 | CN101389773A Electric arc furnace steelmaking |
| 03/18/2009 | CN101389772A Method of producing steel for high carbon steel wire material excellent in wire-drawability and fatigue characteristic |
| 03/18/2009 | CN101386958A Steel for high speed rail non-slag concrete slab sleeper steel wire and producing method thereof |
| 03/18/2009 | CN101386954A Variable temperature martensite local strengthening austenite low manganese steel hammer head material and preparation process thereof |
| 03/18/2009 | CN101386951A Nickel-copper intermediate alloy and melting and purification treatment method thereof |
| 03/18/2009 | CN101386950A Nickel iron intermediate alloy and melting and purification treatment method thereof |
| 03/18/2009 | CN101386901A Gasifying chamber spray gun for granular magnesium desulfurization |
| 03/18/2009 | CN101386900A Aluminium granule reduction iron core cabling wire and manufacturing method thereof |
| 03/18/2009 | CN100469899C Tuyere device for introducing gaseous media under a liquid-metal layer |
| 03/18/2009 | CN100469898C Alkaline oxygen converter steelmaking slagging fluxing agent and its preparing method and slagging method |
| 03/12/2009 | WO2009032067A2 Rotary lance |
| 03/12/2009 | WO2009030295A1 Cleaning device for immersion tubes or nozzles of vacuum degassing units |
| 03/12/2009 | US20090065985 Molten metal reactor utilizing molten metal flow for feed material and reaction product entrapment |
| 03/12/2009 | US20090065984 Smelting apparatus |
| 03/12/2009 | CA2698492A1 Rotary lance |
| 03/11/2009 | CN201206632Y Seal dump valve of electrohydraulic push rod |
| 03/11/2009 | CN201206155Y Baking gun spray head |
| 03/11/2009 | CN201206154Y Non-all coated rare-earth metal core cabling wire |
| 03/11/2009 | CN201206153Y Aluminium granule reduction iron core cabling wire |
| 03/11/2009 | CN101384735A Method of denitrifying molten steel |
| 03/11/2009 | CN101381844A Cold working die steel material and production technology thereof |
| 03/11/2009 | CN101381798A Technique for observation of vacuum groove using top lance |
| 03/11/2009 | CN101381797A Steam supply apparatus for RH vacuum steel refining furnace |
| 03/11/2009 | CN101381796A Dephosphorization method in smelting high-purity raw ferroferrite |
| 03/11/2009 | CN101381795A RH vacuum treating refining slag and preparation method thereof |
| 03/11/2009 | CN101381794A Calcium-aluminium core cabling wire |
| 03/11/2009 | CN101381793A Silicon-bismuth as-cast pearlitic ductile iron inoculant |
| 03/11/2009 | CN101381792A Slag forming material of intermediate frequency induction furnace |
| 03/11/2009 | CN101381791A Method for inhibiting pro-eutectoid ferrite precipitation in medium carbon hypoeutectoid steel hot-rolling microstructure |
| 03/11/2009 | CN101381790A Method for horizontal continuous casting 10Cr9Mo1VNbN ferrite heat-resistant steel to tube round blank through electric stove smelting |
| 03/11/2009 | CN101381787A Smelting method of high-alloy steel |
| 03/11/2009 | CN101380666A Novel slag-collecting thermal-insulating covering agent |
| 03/11/2009 | CN100467622C Molten steel desulfurizing process of bottom blowing superfine magnesium powder |
| 03/11/2009 | CN100467621C Molten steel refining agent and preparation method |
| 03/05/2009 | WO2009028924A1 Ionising compound serving as an electric arc stabiliser |
| 03/05/2009 | US20090057964 Rotary lance |
| 03/05/2009 | DE102007040882A1 Reinigungsvorrichtung für Tauchrohre bzw. Rüssel von Vakuumentgasungsanlagen Cleaning device for immersion pipe or trunk of vacuum degassing |
| 03/04/2009 | CN201201957Y On-line argon blowing apparatus |
| 03/04/2009 | CN201201956Y 10-30 tons bottom breakout ladle external refining apparatus |
| 03/04/2009 | CN101379202A Method of smelting highly clean steel with extremely low sulfur content |
| 03/04/2009 | CN101378863A Method of controlling the flow of adjuvant for the casting of a molten metal |
| 03/04/2009 | CN101376951A High strength wire rod for bridge stay cable and suspended cable galvanized steel wire, and manufacturing method thereof |
| 03/04/2009 | CN101376917A Phosphorus pig iron additive for aluminum electrolysis |
| 03/04/2009 | CN101376916A Pretreatment method of dephosphorization, desiliconization and desophorization for hot metal |
| 03/04/2009 | CN101376915A Method for smelting high-alumina non-magnetic steel |
| 03/04/2009 | CN100465295C A boron composite fluxing agent for making steels |
| 03/04/2009 | CN100465294C An intelligent control method for bottom-blowing argon in refining furnaces |
| 03/04/2009 | CN100465293C A dispersing method of abearing steel nanometer titanium-removing agent in molten steel |
| 03/04/2009 | CN100465292C A rotating steel ladle refining furnace |
| 03/04/2009 | CN100465291C A production technology of low carbon low silicon aluminum killed steels |
| 03/04/2009 | CN100464897C An inoculant adding method and a device thereof |
| 03/03/2009 | US7497988 Vortexer apparatus |
| 03/03/2009 | US7497987 Refining method and refining apparatus for chromium-contained molten steel |
| 02/26/2009 | WO2009004565A3 Flux and method of making same |
| 02/25/2009 | EP2028285A1 Steel for high-cleanliness spring with excellent fatigue characteristics and high-cleanliness spring |
| 02/25/2009 | CN101372723A Molten iron pretreatment slag skimming process |
| 02/25/2009 | CN101372722A Molten iron pretreatment slag collecting agent |
| 02/25/2009 | CN101372721A High vacuum induction furnace nitrogen-containing steel smelting nitrogen pickup method |
| 02/25/2009 | CN101372720A High vacuum induction furnace steel-smelting carburetion method |
| 02/25/2009 | CN101372029A Crystallizer protecting residue and method of use thereof |
| 02/25/2009 | CN100464148C Special apparatus for light stone dregs removing agent |
| 02/25/2009 | CN100463998C High-strength abrasion-proof thermostable nano alloyed steel material and producing method thereof |
| 02/25/2009 | CN100463994C Nb-Ti microalloying steel suitable for large line energy welding and smelting method therefor |
| 02/25/2009 | CN100463993C Low carbon equivalent micro-alloy steel pipe and on-line normalizing process thereof |
| 02/25/2009 | CN100463992C Forged (rolled) abrasive austenic permanganic steel and its manufacture |
| 02/18/2009 | CN101368249A Steel for boiler and method of producing the same |
| 02/18/2009 | CN101368244A Low-carbon ferromanganese manufacturing technique |
| 02/18/2009 | CN101368225A Smelting method for vulcanization easy cutting plastic mold steel |
| 02/18/2009 | CN101368224A Smelting method for medium-carbon stainless steel |
| 02/18/2009 | CN101368222A Fluorin-free composite quick slag-forming constituents for convertor steelmaking and method of producing the same |
| 02/18/2009 | CN100462469C Cold and hot shearing edge steel for shearing thick plate |
| 02/18/2009 | CN100462467C Whole set smelting device for ferrotitanium series product |
| 02/18/2009 | CN100462466C Method of producing low-temperature high-toughness steel and steel plate |
| 02/18/2009 | CN100462464C Aluminium calcium ferro-silicon alloy |
| 02/18/2009 | CN100462447C Levelling equipment for vacuum chamber |
| 02/18/2009 | CN100462446C Method for melting and decarburization of iron carbon alloy |
| 02/18/2009 | CN100462445C Low-aluminium composite deoxidant containing magnesium |
| 02/17/2009 | US7491348 Composition of matter tailoring: system I |
| 02/17/2009 | CA2297232C Apparatus and method for stirring molten metal using electromagnetic field |