| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 10/05/2011 | CN102206732A Solid-core passivated pure calcium cored wire and manufacturing method thereof |
| 10/05/2011 | CN102206731A Vanadium and nitrogen alloying cored wire and method for molten steel |
| 10/05/2011 | CN102206730A Method for controlling oxygen and reducing nitrogen in molten steel |
| 10/05/2011 | CN102206729A Method for recycling steel slag of LF (Low Frequency) furnace |
| 10/05/2011 | CN101892358B Multipurpose top lance system |
| 10/05/2011 | CN101748338B High-strength cast steel for coupler of railway vehicle and manufacturing method thereof |
| 10/05/2011 | CN101649425B X120 pipeline steel with low crack sensitivity and high toughness and manufacturing method thereof |
| 10/05/2011 | CN101565796B Sheet steel with tensile strength of 570Mpa for elbow pipe and production method thereof |
| 09/29/2011 | WO2011118477A1 Installation structure for a gas-injection plug |
| 09/29/2011 | US20110236696 High strength rebar |
| 09/28/2011 | CN201992997U 分斗式合金车料斗 Sub-alloy car hopper bucket |
| 09/28/2011 | CN201990696U 一种机械搅拌法铁水预处理搅拌头刮渣器 A mechanical stirring method of hot metal pretreatment slag stirring head-scratching |
| 09/28/2011 | CN102203312A Steel sheet, hot-dip zinc-coated steel sheet and processes for production of same |
| 09/28/2011 | CN102199733A Smelting method of axle steel for high-speed motor car |
| 09/28/2011 | CN102199725A Bridge structural steel and production method thereof |
| 09/28/2011 | CN102199689A Refining method of magnesia-calcia-based stainless steel ladle vacuum refining furnace |
| 09/28/2011 | CN102199688A Method for efficiently refining ultra-pure ferritic stainless steel |
| 09/28/2011 | CN102199687A RH vacuum treatment desulfurizing agent used for non-oriented electrical steel, preparation method thereof, and desulfurizing method using same |
| 09/28/2011 | CN102199686A Molten iron dephosphorization agent, and dephosphorization and desilication method for molten iron |
| 09/28/2011 | CN102199685A Molten iron desiliconizing reagent and molten iron desiliconizing method |
| 09/28/2011 | CN102199684A Production method of ultralow-oxygen titanium-containing ferrite stainless steel |
| 09/28/2011 | CN102199682A Semisteel steelmaking method |
| 09/28/2011 | CN102198505A Machining device for iron steel alloy materials |
| 09/28/2011 | CN102198504A Production technology of mirror-surface plastic die steel |
| 09/28/2011 | CN101818231B Control method for preventing splash during refining ferrochromium alloy with argon oxygen |
| 09/28/2011 | CN101811076B Composite toothed plate and casting method thereof |
| 09/28/2011 | CN101693938B Molten steel protection method of intermediate frequency induction furnace |
| 09/28/2011 | CN101649411B Fe-X-C grain refiner and preparation method thereof |
| 09/28/2011 | CN101613836B Manufacturing method of niobium-titanium composite micro-alloyed steel continuous casting heavy slab |
| 09/28/2011 | CN101613829B Steel pipe for borehole operation of 150ksi steel grade high toughness oil and gas well and production method thereof |
| 09/28/2011 | CN101608284B Manufacturing method of titanium microalloyed hot rolled strip |
| 09/28/2011 | CN101586177B Method for reducing titanium inclusion of molten steel |
| 09/28/2011 | CN101392351B High efficiency and high strength dynamo steel and production method thereof |
| 09/22/2011 | DE102010022692A1 Brikett zur Erzeugung eines Schaumschlacke-Effekts bei der EAF-Technologie der Edelstahlherstellung Briquette for generating a foamy slag effect in the EAF technology of steel production |
| 09/21/2011 | CN201983641U 一种冶金喷枪 A metallurgical gun |
| 09/21/2011 | CN201983622U 一种rh真空精炼炉用浸渍管 One kind rh vacuum refining furnace snorkel |
| 09/21/2011 | CN102191357A Method and improved device for argonoxygen refining of low-carbon ferrochrome |
| 09/21/2011 | CN102191356A Control method of inclusions in thick steel plate used for high heat input welding |
| 09/21/2011 | CN102191355A Covering agent for steel smelting, and preparation method thereof |
| 09/21/2011 | CN102191354A Electrode hoisting system for low-frequency (LF) furnace |
| 09/21/2011 | CN101876024B Production method for high-chrome continuous cast billet containing N duplex stainless steel of pipe blank |
| 09/21/2011 | CN101824508B Slagging method for electrosmelting |
| 09/21/2011 | CN101792843B Production process of Nb-containing mill coil for automobile |
| 09/21/2011 | CN101736124B Method for reducing titanium inclusion in cord steel |
| 09/21/2011 | CN101376951B High strength wire rod for bridge stay cable and suspended cable galvanized steel wire, and manufacturing method thereof |
| 09/20/2011 | US8021599 Method and installation for producing steel products with optimum surface quality |
| 09/20/2011 | US8021458 charging electric arc furnace with unaggumulated carbon forming polymer ( PET, other plastics), formed carbon acts as reducing agent for metal oxide and acts as fuel and can be oxidized into carbon oxides to cause slag foaming, when iron oxide feed charged, reduction takes place to form C, Fe alloy |
| 09/15/2011 | WO2011110392A1 Method of setting a slag consistency and apparatus for carrying out the method |
| 09/14/2011 | CN201974057U 一种炼钢喂丝机丝线水冷导向装置 One kind of water-cooled steel wire feeding machine thread guide |
| 09/14/2011 | CN201971857U 具有示警功能的钢包透气砖 Ladle purging with a warning function |
| 09/14/2011 | CN201971856U 一种rh法炼钢用顶枪枪头 One kind rh law steelmaking top gun tips |
| 09/14/2011 | CN201969668U 脉冲熔剂喷粉罐 Pulse flux powder cans |
| 09/14/2011 | CN102183289A Method for controlling quantity of refining aluminium based on remote infrared monitoring |
| 09/14/2011 | CN102183288A Refining aluminum consumption control method based on remote infrared monitoring |
| 09/14/2011 | CN102181804A Steel plate for Class I nuclear key equipment and manufacturing method thereof |
| 09/14/2011 | CN102181794A Hardening and tempering high-strength steel plate for wood based panel equipment and production method of tempering high-strength steel plate |
| 09/14/2011 | CN102181786A Coil rod used for 1670MPa level bridge cable zinc-coated wire and preparation method of coil rod |
| 09/14/2011 | CN102181755A Low calcium-aluminum-manganese-iron alloy and preparation method thereof |
| 09/14/2011 | CN102181610A Composite slagging agent for making semisteel, and preparation method and using method thereof |
| 09/14/2011 | CN102181609A Desulfurization method for smelting two-phase stainless steel |
| 09/14/2011 | CN102181608A Molten iron desulfuration slag spray modification process |
| 09/14/2011 | CN102181607A Deoxidant for steelmaking |
| 09/14/2011 | CN102181606A Rare earth aluminum manganese calcium iron alloy and production method thereof |
| 09/14/2011 | CN102181605A Molten steel deoxidizing modifier |
| 09/14/2011 | CN102181604A New smelting process for producing medium carbon steel by adopting steel ladle powder injection technique |
| 09/14/2011 | CN102181603A Vanadium nitride core-spun yarn and method for realizing molten steel vanadium and nitrogen alloying |
| 09/14/2011 | CN102181602A Method for adding oxidizable alloy in molten steel |
| 09/14/2011 | CN102181597A Converter less slag smelting method based on Cu-P system weathering steel |
| 09/14/2011 | CN102181596A Converter blowing dephosphorization process for cooling converter slag by using limestone |
| 09/14/2011 | CN102181588A Method for recycling refined casting residues during steelmaking in steel plant |
| 09/14/2011 | CN101880755B Method for preparing high-phosphorus pig iron by using dephosphorized converter slag |
| 09/14/2011 | CN101724778B Steel for automobile beam and with yield strength more than 500 MPa and manufacturing method thereof |
| 09/14/2011 | CN101713014B Steel additive agent vanadium nitride alloy powder core-spun wire |
| 09/14/2011 | CN101538623B Process for manufacturing T/P91.92 fine-grained heat-resistant steel pipe |
| 09/13/2011 | US8017068 Inducing swirl in a gas flow |
| 09/07/2011 | CN201962318U 单工位脱硫扒渣装置 Single station desulphurization slag device |
| 09/07/2011 | CN201962317U 三段式弧形扒渣装置 Three-arc slag device |
| 09/07/2011 | CN201960127U 精炼炉钢包回转台 Refining furnace ladle turret |
| 09/07/2011 | CN201960126U 一种钢包底吹氩内装式透气砖 One kind of ladle bottom blowing argon built-in air brick |
| 09/07/2011 | CN201960124U 复合透气砖 Composite purging |
| 09/07/2011 | CN101812646B High-speed steel alloy casting process used for roll |
| 09/07/2011 | CN101693940B Utilizing method of waste slag of vacuum degassing refining furnace |
| 09/07/2011 | CN101691640B High strength low alloy wear resistance steel plate and preparation method thereof |
| 09/07/2011 | CN101634521B Casting method of cast steel rotary furnace flue |
| 09/06/2011 | US8012237 Process for producing molten iron |
| 09/01/2011 | US20110209581 Method of producing steel for steel pipe excellent in sour-resistance performance |
| 08/31/2011 | EP2361210A1 Supporting framework for a coil of wire for adding substances to a bath of liquid metal |
| 08/31/2011 | CN201952452U 一种实芯纯钙包芯线 One kind of solid core pure calcium cored wire |
| 08/31/2011 | CN1827794B Refining slag for ultra-pure steel and preparation method thereof |
| 08/31/2011 | CN102171370A Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment |
| 08/31/2011 | CN102168163A Heating slag melting agent for smelting low-silicon liquid iron and preparation method of the heating slag melting agent |
| 08/31/2011 | CN102168162A Air cyclone cooling type wire feeding gun |
| 08/31/2011 | CN102166642A Method for controlling morphologies of inclusions in cast structure of steel |
| 08/31/2011 | CN101748336B Fire-resistant steel and preparation method thereof |
| 08/31/2011 | CN101532074B A blowing method desulfurizing agent and preparation method thereof |
| 08/25/2011 | WO2011102244A1 Steel material exhibiting excellent fatigue-crack progress resistance and corrosion resistance, and production method for same |
| 08/25/2011 | US20110203415 Method of suppressing slag foaming in continuous melting furnace |
| 08/24/2011 | CN201942704U 钢包自动底吹氩稳流装置 Ladle automatic bottom argon steady flow device |
| 08/24/2011 | CN102165082A Production of ferro-alloys |
| 08/24/2011 | CN102162068A Spring steel and manufacturing and thermal treatment method thereof |