| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 03/16/2011 | CN101319293B Sea water resistant steel and manufacture process thereof |
| 03/16/2011 | CN101298632B BaO-containing external slag washing desulfuration refining agent |
| 03/15/2011 | US7906747 Cored wire |
| 03/09/2011 | CN201756567U Novel replacement trolley for RH communicating pipes |
| 03/09/2011 | CN201756566U Steel ladle melting argon-blowing secondary oxidation apparatus |
| 03/09/2011 | CN201756565U Stainless steel argon blowing and refining device |
| 03/09/2011 | CN201756564U 喂线机 Hey ray machine |
| 03/09/2011 | CN101984102A Smelting method of calcium-silicon alloy |
| 03/09/2011 | CN101984088A Method for preparing premelted refining slag by using converter slag and aluminum slag |
| 03/09/2011 | CN101984085A Air-cooling desulfurization spray gun |
| 03/09/2011 | CN101984084A Stirring head for desulphurizing liquid iron |
| 03/09/2011 | CN101984083A Long-life molten iron desulfurization stirring head |
| 03/09/2011 | CN101984082A Air-cooled single-blow desulphurization spray gun |
| 03/09/2011 | CN101984081A Desulfurization spray gun |
| 03/09/2011 | CN101983854A Vibration forming machine of desulfurization spray gun |
| 03/09/2011 | CN101983853A Vibration forming machine of desulfurization stirring head |
| 03/09/2011 | CN101983803A Environment-friendly granular magnesium passivation system |
| 03/09/2011 | CN101608282B Drill rod material steel pipe resisting low temperature of -40 to -60 DEG C and manufacturing method thereof |
| 03/09/2011 | CN101560583B Rotary furnace cooling agent made of metallurgical waste material product and manufacture method thereof |
| 03/09/2011 | CN101560581B Rotary furnace cooling agent and manufacturing method thereof |
| 03/09/2011 | CN101392308B Molten steel deoxygenation method for thinning solidification structure |
| 03/08/2011 | US7901482 Removal method of nitrogen in molten steel |
| 03/03/2011 | WO2011023337A1 Device for degassing molten steel with an improved discharge nozzle |
| 03/03/2011 | WO2011023084A1 Hydraulic lifting device for steel ladle |
| 03/03/2011 | DE102009039260A1 Vorrichtung zur Entgasung einer Stahlschmelze mit einem verbesserten Auslaufrüssel Apparatus for degassing of molten steel with an improved outlet trunk |
| 03/02/2011 | CN101982393A Self-flowing material feeding device for ladle ventilated bricks |
| 03/02/2011 | CN101476018B Method for improving steel plate heat-affected zone toughness of steel plate under high input energy welding condition |
| 03/02/2011 | CN101333581B Sulfur fixing agent without slag accretion agent for magnesium spraying and deep desulphurizing for molten iron , and desulphurization process thereof |
| 03/02/2011 | CN101301679B Tundish covering agent special for smelting pipeline steel |
| 02/24/2011 | US20110042030 Filter For Use In The Casting Of Aluminium, Magnesium, Copper Alloy And The Like |
| 02/24/2011 | US20110041653 Method of manufacturing ultra low carbon ferritic stainless steel |
| 02/23/2011 | CN101979674A 吹氩工艺系统 Argon Technology System |
| 02/23/2011 | CN101979673A Preparation method of magnesium-based desulfurizing agent |
| 02/23/2011 | CN101979672A Method for ultra-deeply dephosphorizing in steel ladle |
| 02/23/2011 | CN101979188A Method for building bottom of molten steel tank |
| 02/22/2011 | US7892319 Crust breaker and ore dispenser |
| 02/17/2011 | DE112006003540B4 Entgasungsvorrichtung mit Duplex-Vakuumbehälter Degassing with duplex vacuum vessel |
| 02/16/2011 | CN201746574U Shielded small furnace cover of VD furnace |
| 02/16/2011 | CN201746573U Small shielding furnace cover of VD (vacuum degassing) furnace |
| 02/16/2011 | CN101977867A Method of processing slag |
| 02/16/2011 | CN101974665A Magnesium, magnesium alloy and wastes thereof based production line for producing particle magnesium desulfurizing agent/particle magnesium alloy desulfurizing agent |
| 02/16/2011 | CN101624675B 45BM steel for caterpillar track pin roll and manufacturing method thereof |
| 02/16/2011 | CN101457280B Pneumatic device of RH feeding system |
| 02/16/2011 | CN101451179B RH ladle double jacking apparatus |
| 02/16/2011 | CN101280387B Steel belt for rim of vehicle wheel and manufacturing method thereof |
| 02/16/2011 | CN101054612B Long life molten iron pretreatment desulfurizing spraying gun |
| 02/10/2011 | WO2011015028A1 Extractable porous brick |
| 02/10/2011 | US20110031661 Gas cupola for melting metal |
| 02/10/2011 | US20110030842 Method and apparatus for carrying out a metallurgical process |
| 02/09/2011 | CN201737974U Dip pipe steel liner of RH refining equipment |
| 02/09/2011 | CN201737973U Cable lead sealing device |
| 02/09/2011 | CN201737972U Fully developed flue gas waste heat recovery device for AOD converter |
| 02/09/2011 | CN201735789U Ladle brick cup positioning device |
| 02/09/2011 | CN101967610A High carbon high silicon martensite stainless steel billet and preparation method thereof |
| 02/09/2011 | CN101967604A Boron-nitrogen composite microalloyecd steel allowing for high heat input welding and manufacturing method |
| 02/09/2011 | CN101967535A Alloy wire for obtaining fine oxide in low alloy steel and manufacturing method and application thereof |
| 02/09/2011 | CN101967534A Method for toughening iron and steel materials by adding nano-particles |
| 02/09/2011 | CN101643887B Super-thick high-level boat plate steel and production process thereof |
| 02/09/2011 | CN101613782B Production method of non-quenched and tempered steel containing nitrogen and sulfur |
| 02/09/2011 | CN101545028B Multifunctional vacuum refining process |
| 02/09/2011 | CN101358265B Compound iron melt desulfurizing agent and method of preparing the same |
| 02/03/2011 | WO2011013151A1 Advanced technology for iron-krom alloys production and related plant |
| 02/03/2011 | WO2011012242A1 Process for producing an ultra-low-carbon steel slab, strip or sheet |
| 02/03/2011 | CA2769447A1 Process for producing an ultra-low-carbon steel slab, strip or sheet |
| 02/02/2011 | CN101962740A Ferrite stainless steel for automobile exhaust emission system and manufacturing method thereof |
| 02/02/2011 | CN101962736A Ferrite stainless steel and manufacturing method thereof |
| 02/02/2011 | CN101962704A Method for producing low-phosphorous low-sulfur micro carbon and low-carbon manganese silicon alloy by adopting specific core powder formula feeding wire |
| 02/02/2011 | CN101962703A Method for recycling refractory material from stainless steel smelting |
| 02/02/2011 | CN101962702A Method for controlling non-metallic inclusions in steel |
| 02/02/2011 | CN101962701A LT-CAS (Control Automatic System) double-station vacuum refining device and process method thereof |
| 02/02/2011 | CN101962700A Method for smelting low-phosphorous molten steel by utilizing semisteel |
| 02/02/2011 | CN101768696B Yttrium nitrogen titanium boron alloy and preparation method and purposes thereof |
| 02/02/2011 | CN101643876B Super-pure smelting method for industrially producing Incone1690 alloy |
| 02/02/2011 | CN101638753B Manufacture method of solution treatment-free high-performance two-phase stainless cast steel |
| 02/02/2011 | CN101629268B Microalloying high-strength and anti-crack flat steel for automobile girder and production process thereof |
| 02/01/2011 | US7879130 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 |
| 02/01/2011 | CA2495766C Device for injecting a treatment gas into a molten metal |
| 01/26/2011 | CN201722405U Joint structure of argon blowing at ladle bottom |
| 01/26/2011 | CN201722404U Low-energy-consumption molten iron desulfurization stirrer |
| 01/26/2011 | CN101956132A Steel having excellent toughness in welding heat affected zone, and manufacturing method thereof |
| 01/26/2011 | CN101956131A Preparation method of ultra-low carbon steel and ultra-low carbon steel plate |
| 01/26/2011 | CN101956121A Manufacture process of high-pressure hydro-stainless steel valve casting |
| 01/26/2011 | CN101956045A Refining slag and method for refining molten steel |
| 01/26/2011 | CN101956044A Refining method for improving clean class of steel |
| 01/26/2011 | CN101956040A Producing method of clean steel |
| 01/26/2011 | CN101956035A Iron-containing material slag bath smelting reduction steelmaking technical method and device |
| 01/26/2011 | CN101691622B Converter dephosphorization pretreatment and slagless decarburization method |
| 01/26/2011 | CN101613786B Boron-containing modifier for ladle covering slag and use method thereof |
| 01/26/2011 | CN101565792B Method for smelting boron steel |
| 01/26/2011 | CN101550474B Reducing boron slag system for producing high-purity silicon iron |
| 01/26/2011 | CN101487097B High strength cold rolling packaging steel belt and production method thereof |
| 01/26/2011 | CN101445845B Process for directly producing austenitic stainless steel by utilizing oxide nickel |
| 01/26/2011 | CN101245432B Technique for producing wire rod for low carbon drawn wire |
| 01/20/2011 | WO2011007578A1 Method for producing alloy ingots |
| 01/20/2011 | DE19921161B4 Elektroschlacke-Umschmelzanlage mit einer Kokille und einer Haube Electroslag remelting plant with a mold and a hood |
| 01/19/2011 | EP2275580A1 Method and agent for treating raw iron desulphurisation slags |
| 01/19/2011 | CN201713536U Phi 5.5mm cord yarn steel hot-finished rod production device |
| 01/19/2011 | CN101949474A Heat-resistance stainless steel exhaust pipe and manufacturing method thereof |
| 01/19/2011 | CN101948984A Steel plate for heavy-duty generator and manufacturing method thereof |
| 01/19/2011 | CN101948983A Rail steel and preparation method thereof |