| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 05/04/2011 | CN101660097B Wear-resisting alloy steel with high boron, high chrome and low carbon and preparation method thereof |
| 05/04/2011 | CN101275175B Method for performing Yt-based heavy rare earth modification on high manganese steel |
| 05/03/2011 | US7935172 Ironmaking and steelmaking |
| 04/28/2011 | US20110094703 Method of continuous casting of high-aluminum steel and mold powder |
| 04/28/2011 | US20110094336 Method for producing a steel melt containing up to 30% manganese |
| 04/27/2011 | CN201809393U Vacuum compensator with push-pull cylinders |
| 04/27/2011 | CN201809392U Pure calcium core-spun yarn for molten steel deoxidization |
| 04/27/2011 | CN201809391U Skimming machine hydraulic control system |
| 04/27/2011 | CN201809390U Solid calcium metal core-wrapped wire for steel making de-oxidation |
| 04/27/2011 | CN201809389U Molten steel pretreatment device |
| 04/27/2011 | CN102037148A High-strength steel sheet and process for producing molten steel for high-strength steel sheet |
| 04/27/2011 | CN102031453A Titaniferous alloy steel and preparation method thereof |
| 04/27/2011 | CN102031452A 合金钢及其制造方法 Alloy and manufacturing method thereof |
| 04/27/2011 | CN102031396A Method for extracting vanadium from molten iron |
| 04/27/2011 | CN102031340A Method for controlling viscous slag of molten steel tank |
| 04/27/2011 | CN102031339A Molten iron slagging-off method |
| 04/27/2011 | CN102031338A Method for nitriding molten steel stably |
| 04/27/2011 | CN102031337A RH (Relative Humidity) desulfurizer with low melting point |
| 04/27/2011 | CN102031336A Particle magnesium desulfurizer/particle magnesium alloy desulfurizer based on magnesium, magnesium alloy and waste materials thereof and preparation method |
| 04/27/2011 | CN102031335A Complex deoxidizer for smelting high heat input welded high-strength steel and using method thereof |
| 04/27/2011 | CN102031334A Inclusion control method for pipeline welding wire steel |
| 04/27/2011 | CN102029305A Production method of ultra-thick steel plate |
| 04/27/2011 | CN101726188B Masonry structure for 18TAOD furnace lining |
| 04/27/2011 | CN101713011B Novel smelting method of cast steel |
| 04/27/2011 | CN101660022B Method for improving steel cleanness of stainless steel |
| 04/27/2011 | CN101660021B Method for desulfurizing ultra-low carbon pure steel in circulating vacuum degassing method |
| 04/27/2011 | CN101649423B Niobium micro-alloying gap-free hot rolled strip and manufacture method thereof |
| 04/27/2011 | CN101603144B Manufacturing method of 700 MPa level high-strength cold rolling carbon-aluminum-manganese steel plate |
| 04/27/2011 | CN101497971B High-strength hardened and tempered steel and production method thereof |
| 04/27/2011 | CN101460638B A method for stabilizing slag and novel materials produced thereby |
| 04/27/2011 | CN101440420B Nitrogen increasing method for nitrogen-containing gear steel production process |
| 04/27/2011 | CN101381787B Smelting method of high-alloy steel |
| 04/26/2011 | US7931732 Method and apparatus for carrying out a metallurgical process |
| 04/26/2011 | CA2422253C Refining agent and refining method |
| 04/21/2011 | WO2011045514A1 Degassing of martensitic stainless steel before remelting beneath a layer of slag |
| 04/21/2011 | CA2777035A1 Degassing of martensitic stainless steel before remelting beneath a layer of slag |
| 04/20/2011 | EP2312004A1 High-strength steel sheet and process for producing molten steel for high-strength steel sheet |
| 04/20/2011 | EP1561834B1 Duplex stainless steel and method for production thereof |
| 04/20/2011 | CN201801546U Water gas mixing tubing for AOD furnace |
| 04/20/2011 | CN201801545U Novel desulfurizing spray gun |
| 04/20/2011 | CN201801537U Single blow grain magnesium desulfurizing device for molten iron |
| 04/20/2011 | CN201801190U Rotary displacement metering feeder |
| 04/20/2011 | CN201799606U Ladle bottom argon blowing device |
| 04/20/2011 | CN102022922A Manufacturing method for prolonging service life of KR stirrer |
| 04/20/2011 | CN102022917A Top gun applied to steel production |
| 04/20/2011 | CN102021499A High-strength pipe steel and method for manufacturing same |
| 04/20/2011 | CN102021497A Hot-rolled sheet coils of X80 pipe line steel and manufacturing method thereof |
| 04/20/2011 | CN102021494A Weather resistant thick steel plate and manufacturing method thereof |
| 04/20/2011 | CN102021490A X12CrMoWVNbN10-1-1 high-temperature structural steel and production method thereof |
| 04/20/2011 | CN102021485A Medium carbon alloy steel |
| 04/20/2011 | CN102021482A Cold-rolled galvanized duplex steel and manufacturing method thereof |
| 04/20/2011 | CN102021480A Low-chromium ferritic stainless steel and manufacturing method thereof |
| 04/20/2011 | CN102021476A Low-cost acid resistant pipeline steel hot-rolled plate and manufacturing method thereof |
| 04/20/2011 | CN102021475A Hot-rolled H-shaped steel for low temperature-resisting structure and preparation method thereof |
| 04/20/2011 | CN102021276A Method for controlling aluminum component in steel |
| 04/20/2011 | CN102021275A Single-station desulphurization deslagging device and method thereof |
| 04/20/2011 | CN102021274A Silicon steel desulfuration method |
| 04/20/2011 | CN102021273A Fluidness control method of molten low-silicon aluminized steel of square billet |
| 04/20/2011 | CN102021272A Method for controlling content of nitrogen for stainless steel smelting |
| 04/20/2011 | CN102021271A Intermediate for adding superfine oxide into steel and preparation method |
| 04/20/2011 | CN102021270A Method for improving isotropy of alloy constructional steel |
| 04/20/2011 | CN102021263A Method for producing medium carbon alloy steel by melting and continuous casting in converter |
| 04/20/2011 | CN102019392A Process for smelting and continuously casting boron-containing high carbon steel for wire production |
| 04/20/2011 | CN101775452B Method for smelting ultra-low sulfur, silicon and titanium grey nodular cast iron by pig iron |
| 04/20/2011 | CN101760582B Smelting method for controlling content of nitrogen in low-carbon steel |
| 04/20/2011 | CN101760581B Production process for smelting high-level low-carbon steel at low cost |
| 04/20/2011 | CN101705417B Method for producing medium and low carbon ferromanganese through furnace refining |
| 04/20/2011 | CN101701280B Molten steel furnace external refining agent and production method thereof |
| 04/20/2011 | CN101580912B Low carbon high sulfur free-cutting steel production process |
| 04/20/2011 | CN101522924B Iron-based powder material, method for producing the same, and briquette for steelmaking material |
| 04/20/2011 | CN101457275B Method for controlling nitrogen content in Al deoxidization steel by converter process |
| 04/20/2011 | CN101386901B Gasifying chamber spray gun for granular magnesium desulfurization |
| 04/20/2011 | CN101338355B Argon-blowing spray gun for refining ladle and making method thereof |
| 04/14/2011 | WO2011043699A2 Metallurgical facility |
| 04/14/2011 | US20110084430 Contoured Molten Metal Filter Cups |
| 04/13/2011 | EP2309006A1 Desulfurizing agent and method for manufacturing the same |
| 04/13/2011 | EP2307580A1 Process for producing a foamed slag on austenitic stainless melts in an electric arc furnace |
| 04/13/2011 | EP2307579A1 Process for producing foamed slag |
| 04/13/2011 | CN201793628U Novel circulating pipe |
| 04/13/2011 | CN201793627U Air feeding device used on ascending tube of RH refining furnace |
| 04/13/2011 | CN201793626U Vacuum degasser with desulfurization function |
| 04/13/2011 | CN201793625U Argon blowing protection device |
| 04/13/2011 | CN201793624U Air blow gun for blowing air to remove slag from molten iron |
| 04/13/2011 | CN201793623U Automatic butt-joint device for argon blowing of steel ladles |
| 04/13/2011 | CN201793622U Side-and-bottom combined blown refined steel ladle |
| 04/13/2011 | CN201793621U Ladle capable of effectively removing gases and inclusion in molten steel |
| 04/13/2011 | CN201793620U Novel pure metal calcium core-spun yarn |
| 04/13/2011 | CN201793611U Durable spray gun for hot metal pretreatment |
| 04/13/2011 | CN102016082A Method of making a high strength, high toughness, fatigue resistant, precipitation hardenable stainless steel |
| 04/13/2011 | CN102015156A Process for production of cast slab of low-carbon steel |
| 04/13/2011 | CN102011059A Smelting technological process of low-silicon low-manganese ultrapure rotor steel |
| 04/13/2011 | CN102010963A Method for effectively controlling medium plate detection defects |
| 04/13/2011 | CN102010939A Molten steel refining slags and application thereof |
| 04/13/2011 | CN102010938A Ladle furnace-vacuum degassing (LF-VD) furnace reduction refining slag with low SiO2 and Al2O3 contents |
| 04/13/2011 | CN102010937A Ladle furnace refining stirring process for preventing large quantity of slags from lumping by weak bottom blowing |
| 04/13/2011 | CN102010936A Process method for refining austenitic manganese steel by blowing argon gas into medium frequency induction furnace |
| 04/13/2011 | CN102010935A Desulphurization powder used in steel ladle powder injection refining process and production method thereof |
| 04/13/2011 | CN102010934A RH refining desulphurization process of non-oriented electrical steel |
| 04/13/2011 | CN102010933A Molten iron dephosphorization agent manufactured by using converter dry-method dust-removal ash as raw material |
| 04/13/2011 | CN102010932A Method for producing deoxidizer by utilizing waste silicon carbide of aluminium electrolysis |