| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 02/11/2010 | US20100031772 Molded body containing titanium |
| 02/11/2010 | DE102008037166A1 Einlaufrüssel für ein nach dem RH-Verfahren arbeitendes Entgasungsgefäß für metallurgische Schmelzen Intake trunk for a working after the RH degassing vessel for metallurgical melting process |
| 02/11/2010 | DE102008037111A1 Kontinuierliche Schrottzuführung in einen elektrischen Schmelzofen (EAF) Continuous feeding scrap in an electric furnace (EAF) |
| 02/10/2010 | CN101643822A Ultrahigh basicity low aluminum fluorine-free refining slag and preparation method and use method thereof |
| 02/10/2010 | CN101643821A Active lime powder surface modifier and production method thereof |
| 02/10/2010 | CN101643820A Fluid active lime powder with low surface energy and production method thereof |
| 02/10/2010 | CN101643819A Rotary spray gun for use in molten iron desulfurization |
| 02/10/2010 | CN101643818A Stirring head for use in molten iron desulfurization |
| 02/10/2010 | CN101643817A Low-Al-Si-Ba-Ca alloy, preparation method thereof and special equipment |
| 02/10/2010 | CN100588721C Coating granule magnesium desulfurizer and preparation method thereof |
| 02/04/2010 | WO2010013358A1 High-strength thick steel products excellent in toughness and weldability, high-strength ultra-thick h shape steel and processes for manufacturing both |
| 02/04/2010 | US20100024600 Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a ddd installation |
| 02/04/2010 | US20100024599 Method and device for producing molten material |
| 02/04/2010 | US20100024596 Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment |
| 02/03/2010 | CN201395613Y Wire feeding guide connecting structure |
| 02/03/2010 | CN101638712A Deoxidized briquette capable of ensuring simultaneous molten steel deoxidization and steel slag modification |
| 02/03/2010 | CN101638711A Photographic device inside attachment-type refining furnace |
| 01/28/2010 | WO2010010801A1 Cast slab of non-oriented magnetic steel and method for producing the same |
| 01/27/2010 | CN201390765Y Steel structure body used for dipping pipe part of vacuum refining furnace |
| 01/27/2010 | CN201390764Y Novel RH slag scraper |
| 01/27/2010 | CN201390763Y Combined hot metal desulphurization/dephosphorization lance |
| 01/27/2010 | CN201390762Y Hot metal desulphurization/dephosphorization lance |
| 01/27/2010 | CN101633974A Smelting process of ultra low oxygen steel |
| 01/27/2010 | CN101633973A Molten iron pretreatment spraying gun |
| 01/27/2010 | CN100584985C Alloy steel for gear wheel and preparation method thereof |
| 01/27/2010 | CN100584984C Alloyed hot galvanizing bake hardening steel plate and method for manufacturing same |
| 01/27/2010 | CN100584982C Boron-containing high-chromium abrasion-proof cast iron and preparation method thereof |
| 01/27/2010 | CN100584475C Manufacture method for high boron high speed steel composite roll by centrifugal casting |
| 01/26/2010 | US7651656 Melting furnace with agitator and agitator for melting furnace |
| 01/21/2010 | WO2010008031A1 Steel material for welding |
| 01/21/2010 | WO2010008017A1 Process for production of cast slab of low-carbon steel |
| 01/21/2010 | CA2726361A1 Steel product for welding |
| 01/21/2010 | CA2721254A1 Low-carbon steel slab producing method |
| 01/20/2010 | CN201387229Y Steel gallbladder for RH refining furnace vacuum chamber dip pipe |
| 01/20/2010 | CN101631879A Method for the reduction of a slag having a high degree of chromium in an electric arc furnace |
| 01/20/2010 | CN101629225A Slag synergist |
| 01/20/2010 | CN101629224A Deoxidation modification agent of molten steel |
| 01/20/2010 | CN101628333A Method for controlling flow of molten metal |
| 01/20/2010 | CN100582251C Knotting method for integral vacuum circulating degasification furnace vacuum chamber |
| 01/20/2010 | CN100582250C Calcium aluminum pressing block used for steel-smelting desoxidant and preparation method thereof |
| 01/20/2010 | CN100582249C Technological process for removing small inclusions in secondary refining |
| 01/19/2010 | US7648674 Device for the in-line treatment of liquid metal by means of gas and filtration |
| 01/14/2010 | WO2010003401A1 Process for producing foamed slag |
| 01/14/2010 | US20100007067 Wire injection lance nozzle assembly |
| 01/14/2010 | US20100005927 Procede et installation pour l'introduction d'un fil fourre dans un bain de metal en fusion |
| 01/14/2010 | CA2729876A1 Process for producing foamed slag |
| 01/13/2010 | EP2143812A1 Silicon-killed steel wire material and spring |
| 01/13/2010 | EP2142477A1 High-purity calcium compounds |
| 01/13/2010 | CN201381344Y Improved RH stove hot-bending pipe |
| 01/13/2010 | CN201381343Y Steel-refining RH stove dip pipe |
| 01/13/2010 | CN201381342Y Improve RH stove lower groove |
| 01/13/2010 | CN201381341Y Improved RH stove circulating tube |
| 01/13/2010 | CN201381340Y RH ladle double-jacking device |
| 01/13/2010 | CN201381339Y Pouring basket argon blowing pipe |
| 01/13/2010 | CN201381338Y Stainless steel argon oxygen decarburization refining side wind oxygen-blowing gun |
| 01/13/2010 | CN100580125C High-strength micro-alloy low-carbon bainite steel and production method thereof |
| 01/13/2010 | CN100580117C Method for improving and stabilizing boron recovery rate for vacuum smelting steel containing boron |
| 01/13/2010 | CN100580100C LF furnace refining slag used for aluminum-containing steel |
| 01/12/2010 | CA2390461C Method for densifying aluminum briquettes |
| 01/12/2010 | CA2384211C Refractory nozzle |
| 01/07/2010 | US20100000062 Method and installation for producing steel products with optimum surface quality |
| 01/06/2010 | CN201376976Y RH vacuum chamber with air cooling device |
| 01/06/2010 | CN201376975Y Lump extractor for taking out lump inside steel ladle |
| 01/06/2010 | CN101619380A Drawable gas permeable brick |
| 01/06/2010 | CN101619379A Mg-Fe alloy desulfurizer and preparation method thereof |
| 01/06/2010 | CN101619378A Method for deoxidizing molten steel |
| 01/06/2010 | CN100577840C Technique for directly smelting stainless steel from dephosphorization blast furnace molten iron in furnace |
| 01/06/2010 | CN100577822C Method for extracting vanadium and removing phosphorus from vanadium-containing molten iron and steel-smelting technique using the same method |
| 01/06/2010 | CN100577821C Decarburization refining method of chromium-containing molten steel |
| 01/05/2010 | US7641849 Injector for injecting particulate material into metallurgical furnaces |
| 01/05/2010 | US7641713 Charging a chromium(Cr)-containing liquid slag onto an iron bath; increasing the carboncontent and suppling energy; tapping the liquid slag having a Cr content of about 0.1% weight after reduction of the Cr; cooling and lowering the carbon content to <1%;leaving the remaining slag for the next melt |
| 12/30/2009 | WO2009032067A3 Rotary lance |
| 12/30/2009 | EP2137326A1 Wire injection lance nozzle insert |
| 12/30/2009 | CN201372298Y Argon blowing automatic connection mechanism in steel-making technique |
| 12/30/2009 | CN201372297Y Full set of automatic argon blowing device |
| 12/30/2009 | CN201372296Y Pneumatic wire-feeding device comprising straightening wire-leading device |
| 12/30/2009 | CN201372292Y Stirring head for hot metal desulfurization |
| 12/30/2009 | CN101613787A Liquid steel high-efficiency composite refining agent |
| 12/30/2009 | CN101613786A Boron-containing modifier for ladle covering slag and use method thereof |
| 12/30/2009 | CN101613785A Ladle for bottom blowing refining |
| 12/30/2009 | CN101613784A Method for controlling non-metallic inclusions in HIC resistance pipeline steel |
| 12/30/2009 | CN101613783A Method for increasing nitrogen in refining furnace |
| 12/30/2009 | CN101613782A Production method of non-quenched and tempered steel containing nitrogen and sulfur |
| 12/30/2009 | CN100575531C Composite low-carbon free-cutting steel and preparation thereof |
| 12/29/2009 | CA2399936C Method of producing high nitrogen ultra low carbon steel |
| 12/23/2009 | WO2009152643A1 An additive used in secondary refining process, the producing method and the application thereof |
| 12/23/2009 | CN201368672Y Locking mechanism of air bricks |
| 12/23/2009 | CN201367446Y Hydraulic system for improving lifting stability of LF furnace electrode |
| 12/23/2009 | CN201367445Y Novel RH vacuum processing top gun sealing section |
| 12/23/2009 | CN201366487Y Device for adding inoculant |
| 12/23/2009 | CN101608285A Interstitial free (IF) hot rolled strip and manufacturing method thereof |
| 12/23/2009 | CN101608284A Titanium microalloyed hot rolled strip and manufacturing method thereof |
| 12/23/2009 | CN101608282A Drill rod material steel pipe resisting low temperature of -40 to -60 DEG C and manufacturing method thereof |
| 12/23/2009 | CN100572565C Molten iron pre-treating method and apparatus |
| 12/23/2009 | CN100572563C Electric furnace smelting method for low-carbon low-silicon steel |
| 12/23/2009 | CN100571971C Hot rolled steel plate for punch process and method of manufacturing the same |
| 12/22/2009 | US7635406 Method for manufacturing a low alloy steel excellent in corrosion resistance |
| 12/17/2009 | WO2009151140A1 High-strength steel sheet and process for producing molten steel for high-strength steel sheet |
| 12/17/2009 | WO2009149679A1 Process for producing a foamed slag on austenitic stainless melts in an electric arc furnace |
| 12/17/2009 | WO2009149581A1 Additive for preparing steel containning super-finely dispersed oxide, producing method and application of the same |