| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 06/01/2011 | CN101418363B Method for producing low carbon and high ductility X60/X65pipeline steel |
| 05/26/2011 | WO2011060629A1 Pure iron-fluxing agent |
| 05/25/2011 | EP2324133A1 Inlet nozzle for a degassing vessel for metallurgical melting operating according to the rh method |
| 05/25/2011 | CN201842861U Cleaning device for RH dry-process vacuum pumping system |
| 05/25/2011 | CN201842860U Filter of refining mode of relative humidity (RH) dry type vacuum pumping system |
| 05/25/2011 | CN201842859U Differential pressure switching device for RH (relative humidity) dry type vacuum-pumping system |
| 05/25/2011 | CN201842858U Multiple materials adding regulating device for RH (relative humidity) dry-type vacuum-pumping system |
| 05/25/2011 | CN201842857U Double-station device for RH dry-process vacuum pumping system |
| 05/25/2011 | CN102071364A Steel tube and production technique thereof |
| 05/25/2011 | CN102071349A Method for producing microalloy steel by using rare elements in molten iron |
| 05/25/2011 | CN102071287A Method for melting high-temperature-resistance and high-pressure-resistance alloy steel |
| 05/25/2011 | CN102071286A Compound aluminum reducing agent for steelmaking and refining |
| 05/25/2011 | CN102071285A Molten steel refining purification assisting agent and preparation method thereof |
| 05/25/2011 | CN102071284A Method for reducing water nozzle clogging of continuous casting machine |
| 05/25/2011 | CN102071277A Converter dephosphorizing and steelmaking method |
| 05/25/2011 | CN102070344A Vacuum furnace cover castable |
| 05/25/2011 | CN101775461B Method for improving central carbon segregation of tire cord steel |
| 05/25/2011 | CN101748242B Method for precisely controlling nitrogen content in extra low carbon stainless steel with nitrogen |
| 05/25/2011 | CN101649416B High carbon steel wire rod and preparation method thereof |
| 05/25/2011 | CN101643828B Production method of anti-aging tinning black plate |
| 05/25/2011 | CN101463411B Low carbon steel sheet, low carbon steel cast piece and method for production thereof |
| 05/25/2011 | CN101337210B Angle-inserting type hot metal pretreatment spray gun |
| 05/25/2011 | CN101294771B Inducing swirl in a gas flow |
| 05/25/2011 | CN101268208B Low-carbon sulfur-containing free-cutting steel with excellent cuttability |
| 05/25/2011 | CN101144138B Producing method of steel plate for low temperature pressure container and thereof |
| 05/19/2011 | DE10103940B4 Vorrichtung zum Einspeisen von Gas in einen Kessel An apparatus for injecting gas into a vessel |
| 05/18/2011 | EP2321435A1 Recarburisation method |
| 05/18/2011 | EP1728877B1 Process for producing low-alloy steel excelling in corrosion resistance |
| 05/18/2011 | CN201834939U Improved LF (ladle furnace) dedusting electrode center cover |
| 05/18/2011 | CN201834938U Metal cored wire with quick connecting structure |
| 05/18/2011 | CN102066598A Steel material for welding |
| 05/18/2011 | CN102061427A Production method of HRBF500E high-performance shock-resistant reinforcing steel bar |
| 05/18/2011 | CN102061424A Super-thick Q390GJC-Z35 steel plate for high-rise buildings and production method thereof |
| 05/18/2011 | CN102061360A Method for lowering installation height of Ruhstahl Hausen (RH) vacuum processing device under low rail surface elevation condition |
| 05/18/2011 | CN102061359A A slag conditioner composition, process for manufacture and method of use in steel production |
| 05/18/2011 | CN102061358A Desulfuration refining process of high-sulfur crude ferronickel |
| 05/18/2011 | CN102061357A Dephosphorization refining process for phosphorus-containing coarse ferronickel |
| 05/18/2011 | CN102061356A Method for producing foamed slag on high-chromium melts in an electric furnace |
| 05/18/2011 | CN102061351A Method for producing low-carbon steel and ultra-low-carbon steel by VD, LF and VD processes |
| 05/18/2011 | CN101649373B Multifunctional nozzle of finery |
| 05/18/2011 | CN101603114B Process for applying natural gas to deoxidation and recarburization in arc furnace |
| 05/18/2011 | CN101550475B Method for producing ultra-low-carbon steel |
| 05/18/2011 | CN101550471B Method utilizing nonferrous metal production waste to prepare calcium aluminate used for metallurgy |
| 05/18/2011 | CN101490285B Grain refiners for steel - manufacturing methods and use |
| 05/17/2011 | US7943083 Drum apparatus for treating slag |
| 05/17/2011 | US7942950 Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 05/17/2011 | US7942949 Method and apparatus for the recovery of refractory debris materials and ladle slags as process slags in iron metallurgy production in EAFs, and the related metering to the furnace for the formation of the process slag |
| 05/12/2011 | US20110107873 Method of degassing molten metal |
| 05/11/2011 | CN201828156U Oxygen gun nozzle for steel refining furnace with water cooling structure |
| 05/11/2011 | CN201825980U Ration feeder for alloy material in RH vacuum furnace |
| 05/11/2011 | CN201825979U Device capable of preventing molten steel in vacuum degassing furnace from overflowing |
| 05/11/2011 | CN201825978U Water return pit movable cover plate device for VD (Vacuum Distillation) furnace |
| 05/11/2011 | CN201825977U Multifunctional gas blow top lance used for stainless steel vacuum refining furnace |
| 05/11/2011 | CN201825976U Spray gun for desulphurizing granular magnesium molten iron |
| 05/11/2011 | CN201825975U Novel wire transmission wheel of aluminium wire machine |
| 05/11/2011 | CN1667131B Improved composite aluminium ball and preparation method thereof |
| 05/11/2011 | CN1665942B Metallurgical treatment method on a metal bath |
| 05/11/2011 | CN102051531A High boron content austenite stainless steel and preparation method thereof |
| 05/11/2011 | CN102051529A Carbon steel and preparation method thereof |
| 05/11/2011 | CN102051527A Pipe made of high-strength and high-tenacity X90 thick wall seamless pipeline steel and manufacturing method thereof |
| 05/11/2011 | CN102051446A Automatic connector of electromagnetic type argon blowing device |
| 05/11/2011 | CN102051445A Automatic centering argon blowing device connector |
| 05/11/2011 | CN102051444A Desulfurizing method of ladle refining furnace and desulfurizing method used for slab-grade steel |
| 05/11/2011 | CN102051443A High basicity fluorine-free RH (Ruhrstah-Heraeus) desulfurizer |
| 05/11/2011 | CN102051442A Method for smelting straight carbon steel and method for continuously casting straight carbon steel |
| 05/11/2011 | CN102051441A Quick refining process for LF (ladle furnace) |
| 05/11/2011 | CN102051440A Molten steel deoxidizing and carbureting method and steelmaking method |
| 05/11/2011 | CN102051439A Method for smelting high aluminium steel |
| 05/11/2011 | CN102051435A Method for smelting low-carbon aluminium-killed steel and method for continuously casting low-carbon aluminium-killed steel |
| 05/11/2011 | CN102051434A Method for smelting silicon steel |
| 05/11/2011 | CN101705327B Production technology of steel used for pipe line steel electrode |
| 05/11/2011 | CN101675176B Steel for high-cleanliness springs excellent in fatigue characteristics and high-cleanliness springs |
| 05/11/2011 | CN101643818B Stirring head for use in molten iron desulfurization |
| 05/11/2011 | CN101631886B Steel ingot for forging and integral crankshaft |
| 05/11/2011 | CN101553588B Silicon-killed steel wire material and spring |
| 05/11/2011 | CN101538638B Refining method of reducing slag made by CAS refining furnace for desulfurization |
| 05/11/2011 | CN101389774B Blowing lance for refining, blowing lance apparatus for refining, method of desiliconizing of molten iron, and method of pretreatment of molten iron |
| 05/04/2011 | EP2316978A1 Cast slab of non-oriented magnetic steel and method for producing the same |
| 05/04/2011 | EP2039785B1 Ladle steel deoxidation method |
| 05/04/2011 | CN201817513U Movable discharge chute used in hot metal pretreatment process by mechanical agitation method |
| 05/04/2011 | CN102046829A High-strength hot-rolled steel sheet for line pipe excellent in low-temperature toughness and ductile-fracture-stopping performance and process for producing the same |
| 05/04/2011 | CN102046818A Process for producing a foamed slag on austenitic stainless melts in an electric arc furnace |
| 05/04/2011 | CN102041457A Austenitic stainless steel |
| 05/04/2011 | CN102041455A Stainless steel for heat exchanger welded pipe and manufacturing method thereof |
| 05/04/2011 | CN102041447A Q345C steel plate and production method thereof |
| 05/04/2011 | CN102041442A Low-alloy Q345E medium plate and production process thereof |
| 05/04/2011 | CN102041441A Low-alloy medium-thickness steel plate Q345D-Z35 and production process thereof |
| 05/04/2011 | CN102041357A Novel method for making white slag with LF (ladle furnace) refining furnace |
| 05/04/2011 | CN102041356A Fluorine-free high-efficiency compound slagging charging material and production method thereof |
| 05/04/2011 | CN102041355A Ladle slag modifier for stainless steel refining process |
| 05/04/2011 | CN102041354A Steel ladle magnesium-containing deoxidizing slag |
| 05/04/2011 | CN102041353A Desulfurizer, preparation method thereof and desulfurization method adopting desulfurizer |
| 05/04/2011 | CN102041352A Multi-element compound deoxidizer as well as preparation method and application thereof |
| 05/04/2011 | CN102041351A Slag conditioning method for refining chromium-nickel austenite stainless steel with argon-oxygen furnace |
| 05/04/2011 | CN102041350A Method for improving purity of molten steel in argon station |
| 05/04/2011 | CN102041343A Method for reducing DO (dissolved oxygen) content of steel |
| 05/04/2011 | CN102041329A LF (Ladle Furnace) hot steel slag recycling process |
| 05/04/2011 | CN102040386A Torpedo can spouting material and spouting method thereof |
| 05/04/2011 | CN101748334B High hardness cast boron-containing low alloy wear-resistant high-speed steel and preparation method thereof |
| 05/04/2011 | CN101709353B Composite sulfur removal material for cast iron and preparation method thereof |