Patents
Sitemap › C21 - Metallurgy of iron › C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steel; Treatment in molten state of ferrous alloys › C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups
Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430)
10/2012
10/10/2012CN102719624A Anti-splashing cover for oxygen-blowing and de-carbonizing vacuum refining furnace
10/10/2012CN102719623A Slag stopping disk used for VD (vacuum degassing) /VOD (vacuum oxygen decarburization) furnace
10/10/2012CN102719622A Method for recycle of steel-making casting-remnant heat-state steel slag
10/10/2012CN102719621A Refining slag prepared from molten steel refining waste slag and method thereof
10/10/2012CN102719620A Method for adding nitrogen into steel ladle
10/10/2012CN102719619A Desiliconizing method for molten iron
10/10/2012CN102719618A Tapping method for argon oxygen decarburization (AOD) furnace
10/10/2012CN102719617A Electrochemical decarburization method for iron-carbon melts and apparatus thereof
10/10/2012CN102719616A Molten iron desulfurizing method and desulfurizing device thereof
10/10/2012CN102719615A Smelting method of steel for raw material pure iron
10/10/2012CN102719614A Process for producing anti-acid pipeline steel by Ruhrstahl Heraecus (RH)-ladle furnace (LF)-RH refining
10/10/2012CN102719613A Method for deoxidation in ladle furnace (LF) refining furnace by using low calcium ferro-manganese-aluminium
10/10/2012CN102719612A Method for producing hydrogen-induced cracking (HIC)-resistant pipeline steel
10/10/2012CN102719611A Nitrogen increasing method for stainless steel
10/10/2012CN102719610A Nitrogen increasing method for stainless steel
10/10/2012CN102719609A Seamless aluminum calcium iron wire and preparation method thereof
10/10/2012CN102719608A Temperature compensation method for molten steel in steel ladle
10/10/2012CN102719607A Boron alloying method for ladle refining
10/10/2012CN102719602A Clean steel-refining slagging method
10/10/2012CN102719600A Production method of ultra low carbon steel
10/10/2012CN102719597A Converter tapping dephosphorization method of interstitial free steel
10/10/2012CN102719593A Method for smelting ultra-low carbon steel
10/10/2012CN102719590A Device and method for desulfurization by rotating inverted T-shaped spray gun
10/10/2012CN102321785B Method for smelting high-silicon low-oxygen clean steel
10/10/2012CN102296147B Control method for nano-scaled precipitate in thick steel plate for high heat input welding
10/10/2012CN102220546B B-containing medium-carbon non-quenched and tempered steel and production method thereof
10/10/2012CN102198505B Machining device for iron steel alloy materials
10/10/2012CN102140566B Method for improving cleanliness of low-carbon molten aluminum-killed steel
10/10/2012CN102041457B Austenitic stainless steel
10/10/2012CN101696465B Submerged arc foaming agent
10/04/2012WO2012134037A1 Roof for ladle furnace
10/04/2012WO2012133795A1 Environmentally friendly flux for desulfurization of molten steel
10/04/2012WO2012132138A1 Method for adding zinc to molten steel and process for producing zinc-containing steel
10/04/2012WO2012129971A1 Alloy for refining precipitates during production of steel and method of using same
10/04/2012CA2842768A1 Environmentally friendly flux for molten steel desulfurization
10/03/2012CN202469074U RH (Ruhstahl-Heraeus) pneumatic returning device
10/03/2012CN202465772U Dip pipe for relative humidity (RH) refining furnace
10/03/2012CN202465771U Arm rack for argon blowing gun
10/03/2012CN202465770U Stainless steel material refining system
10/03/2012CN202465769U Novel molten iron desulfurizing and skimming plate
10/03/2012CN202465768U Melted iron desulfurization spray gun utilizing granular magnesium
10/03/2012CN202465767U Seamless solid metal calcium core wire for steelmaking deoxidization
10/03/2012CN202465766U Rotary table and furnace cover of ladle refining furnace with steel separating agent spraying layer
10/03/2012CN202465764U Oxygen gun with light transmitting device
10/03/2012CN202461500U Efficient thermal insulation structure of steel ladle for refining furnace
10/03/2012CN202461497U Oval steel ladle
10/03/2012CN102712960A Operation method for mechanically stirring chrome-containing molten iron
10/03/2012CN102712036A Mould powder for continuous casting of steel
10/03/2012CN102703832A Forging process for thermal power rotor
10/03/2012CN102703817A Free-machining pinion steel and production technique thereof
10/03/2012CN102703816A High-carbon low-alloy wear-resistant ball steel and production process thereof
10/03/2012CN102703794A Method for vacuum induction argon bottom blowing smelting high-performance magnetic material
10/03/2012CN102703647A Method for increasing nitrogen removal efficiency of effervescing steel
10/03/2012CN102703646A Device and method for continuously feeding materials during vacuum smelting
10/03/2012CN102703645A Process for refining and slagging steel cord
10/03/2012CN102703644A Method for producing low-carbon high-chrome alloy steel
10/03/2012CN102703636A Continuous refining method and continuous refining facility
10/03/2012CN102220453B Dephosphorization method of semi-steel
10/03/2012CN102115850B Multi-component low-alloyed large-scale wear-resistant cast steel hammerhead and preparation process thereof
10/03/2012CN102061424B Super-thick Q390GJC-Z35 steel plate for high-rise buildings and production method thereof
10/03/2012CN102041351B Slag conditioning method for refining chromium-nickel austenite stainless steel with argon-oxygen furnace
10/03/2012CN102002553B Desulfurization method of medium and low grade cold rolling non-oriented molten silicon steel
10/03/2012CN102000797B Method for producing nodular cast iron pipe fittings with vanadium-bearing titanomagnetite as raw material
10/03/2012CN101948942B Novel desulfurization spray gun
10/03/2012CN101875999B Vacuum pipeline sealing device for double-station RH system
10/03/2012CN101792845B Method for smelting ultra-low-carbon steel by using single-nozzle refining furnace
10/02/2012US8277537 Method of manufacturing ultra low carbon ferritic stainless steel
10/02/2012CA2513193C Apparatus for injecting solid particulate material into a vessel
09/2012
09/26/2012CN202450117U Shielding cover for vacuum circulation degassing furnace
09/26/2012CN202450116U Connection sealing structure of middle groove and bottom groove of vacuum chamber
09/26/2012CN202450115U Furnace mouth tapping slot device for argon oxygen refining furnace
09/26/2012CN202450114U Intelligent stainless steel smelting system
09/26/2012CN202447650U Built-in type air brick with hanging device for steel ladle
09/26/2012CN102695529A Endoprosthesis containing multi-phase ferrous steel
09/26/2012CN102691001A Method for manufacturing austenitic stainless steel with excellent surface polishing processing performance
09/26/2012CN102690927A Method for recycling argon from LF ladle refining furnace
09/26/2012CN102690926A Process for heating, melting and modifying KR desulfurization slag and performing slag-iron separation
09/26/2012CN102690925A Interstitial free steel titanium element removing method for ladle refining furnace
09/26/2012CN102690924A Method for controlling nitrogen content of ultra-low-carbon steel
09/26/2012CN102688992A Method for synthetic slag washing of tundish
09/26/2012CN102040386B Torpedo can spouting material and spouting method thereof
09/26/2012CN101838773B Steel for acid soil corrosion-resistant hot rolling U-shaped steel sheet pile and production method thereof
09/26/2012CN101775560B Nickel-saving austenitic stainless steel and production method thereof
09/25/2012US8273150 High dimensional cored wires containing oxygen removers and a process for making the same
09/20/2012WO2012106837A8 Smokeless spheroidization processing method
09/20/2012WO2012106837A1 Smokeless spheroidization processing method
09/19/2012CN202443295U Automatic control system universally used by argon oxygen decarburization (AOD) furnace and top and bottom combined blowing furnace
09/19/2012CN202440528U Flue gas waste heat recovery device used for vacuum smelting
09/19/2012CN202440526U Multichannel molten iron desulfurization spray gun
09/19/2012CN202438670U Aluminum-iron alloy deoxidizer automatic and continuous casting machine
09/19/2012CN102676948A Boron-containing tire cord steel and preparation method thereof
09/19/2012CN102676744A Technique for refined production of antiacid pipeline steel through VD-LF-VD
09/19/2012CN102676743A Step-by-step returning recycling method of LF (Lactoferrin) refining slag in thermal state
09/19/2012CN102676742A Process method for reducing RH vacuum decarbonization end-point oxygen content of ultra-low-carbon steel
09/19/2012CN102676741A KR (knotted reactor) powder spraying, stirring and desulfurizing device and method
09/19/2012CN102676740A Nano composite molten steel purifying agent and preparation method thereof
09/19/2012CN102676739A Seamless aluminum-containing core spun yarn
09/19/2012CN102676738A Wireless aluminum-containing cored wire
09/19/2012CN102676727A Process for controlling smelting silicon content of low-silicon steel
09/19/2012CN102676725A Method for controlling nonmetal inclusions in X70 stage acidoresistant pipeline steel
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