| Patents for C21C 1 - Refining of pig-iron; Cast iron (3,137) |
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| 03/11/2010 | WO2010026775A1 Process for desulfurization of molten pig iron |
| 03/10/2010 | CN101665852A Method for repairing metal mixer casting lining |
| 03/04/2010 | WO2010022473A1 Production of ferro-alloys |
| 03/04/2010 | CA2735470A1 Production of ferro-alloys |
| 03/03/2010 | EP2159296A1 Hardened and tempered steel and method for producing parts of said steel |
| 03/03/2010 | CN201417073Y Natural gas hot air furnace gas purification cupola furnace |
| 02/17/2010 | CN201406444Y Clamping mechanism of lifting transition carriage of spray gun |
| 02/17/2010 | CN201406443Y Mixer for desulfurizing molten iron |
| 02/17/2010 | CN101649369A Melting process for producing synthetic cast iron by utilizing SiC carburizing siliconizing |
| 02/17/2010 | CN101649368A Method for integrally pouring mixer furnace |
| 02/17/2010 | CN101649367A Technology for mixed blowing and desulfuration of iron mixing vehicle |
| 02/10/2010 | CN101643814A Method for producing ductile cast iron by utilizing waste metal through special spheroidization treatment |
| 02/10/2010 | CN101643813A Method for producing high-strength automotive brake hub and casting thereof |
| 02/10/2010 | CN101643812A Metal mixer tilting system and control method thereof |
| 02/10/2010 | CN101643811A Method for producing low-phosphorous molten iron by high-phosphorous reduced iron |
| 02/04/2010 | WO2009114147A3 Molten aluminum refining and gas dispersion system |
| 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 |
| 01/27/2010 | CN101633971A Formula for producing low-temperature ball spheroidal graphite cast iron |
| 01/27/2010 | CN101633970A Method for producing molten iron for casting by using medium frequency furnace and iron scrap |
| 01/27/2010 | CN100584960C Method for decreasing titan content in molten ductile iron |
| 01/13/2010 | CN201380284Y Double-layered slit permeable brick for bottom-blowing, powder-injecting and dephosphorizing |
| 01/06/2010 | CN101619372A Method for improving toughness of normalized high-strength ductile cast iron |
| 01/06/2010 | CN100577820C Mobile smoke blast trapping device for furnace mixer |
| 12/30/2009 | CN201372292Y Stirring head for hot metal desulfurization |
| 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 | CN100572785C Combustion engine member and its manufacture method |
| 12/16/2009 | CN101603146A Automobile spoke steel and smelting process |
| 12/16/2009 | CN101603144A 700 MPa level high-strength cold rolling carbon-aluminum-manganese steel plate and manufacturing method thereof |
| 12/16/2009 | CN101603111A Stirrer for desulphurization of molten iron |
| 12/09/2009 | CN201358262Y Blast furnace mixer bipyramid guiding support roll set |
| 12/08/2009 | US7628308 Method of replenishing an oxidation suppressing element in a solder bath |
| 12/08/2009 | CA2161959C Microstructurally refined multiphase castings |
| 12/03/2009 | WO2009145228A1 Slag foaming killing material, and slag foaming killing method |
| 12/03/2009 | US20090293677 High efficient method of slag scooping-up from liquid iron and a device for implementing said method |
| 12/02/2009 | CN101595382A Method for influencing the properties of cast iron |
| 11/25/2009 | CN101586210A High strength enamel steel and producing technology and enamel firing technology thereof |
| 11/25/2009 | CN101586176A Calcium based molten iron/semisteel desulfurizing agent and preparation method thereof |
| 11/25/2009 | CN101586175A Low magnesium type molten iron/semisteel desulfurizing agent and preparation method thereof |
| 11/24/2009 | CA2469536C Gray cast iron for cylinder heads |
| 11/18/2009 | CN101579732A Spheroidisation reaction package for producing ductile cast iron and spheroidisation method therefor |
| 11/17/2009 | CA2392938C Apparatus and process to extract heat and to solidify molten material particles |
| 11/11/2009 | CN201343546Y Protecting jacket for hot-metal pouring port of mixer furnace |
| 11/04/2009 | EP2113079A1 Method for influencing the properties of cast iron |
| 10/28/2009 | CN101565796A Sheet steel with tensile strength of 570Mpa for elbow pipe and production method thereof |
| 10/28/2009 | CN101565792A Method for smelting boron steel |
| 10/21/2009 | CN101560585A Method for producing desulphurization powder gun with long service life by using recovered waste silicon carbide |
| 10/14/2009 | CN101555536A Production technique for smelting low-manganese pig iron |
| 10/07/2009 | CN101550513A A method for fast and deep desulfurization of low-carbon aluminum-killed steel |
| 10/07/2009 | CN101550475A Method for producing ultra-low-carbon steel |
| 10/07/2009 | CN101550464A Vermicular cast iron prepared by yttrium process compound iron liquid |
| 10/07/2009 | CN101549364A Method of using hot tandem rolling broad strip mill to produce steel plate for ship hull structure use |
| 09/30/2009 | CN101545023A Smelting process for producing nodular iron castings by using scrap steel |
| 09/30/2009 | CN101545019A Method for smelting pig iron for high-silicon ultra-low-sulfur low-titanium ductile iron |
| 09/23/2009 | CN101541980A Method and apparatus for charging hot direct reduced iron from hot transport vessels into a melter or finisher |
| 09/22/2009 | US7591875 Alloying fine adjustment method |
| 09/17/2009 | WO2009111973A1 Method for treating spheroidal graphite iron and pouring device thereof |
| 09/16/2009 | EP2100975A1 Method and device for treating a molten metal for producing metal castings |
| 09/16/2009 | CN201309945Y Blast furnace mixer side hot metal charging chute lining |
| 09/16/2009 | CN101532074A A blowing method desulfurizing agent and preparation method thereof |
| 09/15/2009 | CA2378825C Production method for porous metal body |
| 09/11/2009 | WO2009110627A1 Process for removal of copper contained in steel scraps |
| 09/11/2009 | CA2715322A1 Method for removing copper in steel scraps |
| 09/09/2009 | CN101525677A Production method of high-strength grey cast iron for automobile fittings |
| 09/09/2009 | CN100537786C Smelting for ultra-large thick-wall spheroidal cast iron element and on site metamorphism treatment method thereof |
| 09/02/2009 | CN101519752A High strength and toughness pipeline steel roll in low-carbon and high-niobium-chromium system and preparation method thereof |
| 09/02/2009 | CN101519708A Production method of spheroidal graphite cast iron with high tenacity and corrosion resistance |
| 09/01/2009 | US7582253 Heat exchanger system used in steel making |
| 08/26/2009 | CN101514397A Energy-saving environment-friendly refining furnace with combined use of gas furnace and electric furnace |
| 08/26/2009 | CN101514380A Metal mixing device |
| 08/26/2009 | CN101514379A Hot metal ladle car on-line molten iron desulphurization pretreatment system |
| 08/26/2009 | CN100532584C MgO base desulfurizing agent and producing method thereof |
| 08/25/2009 | US7578961 Metal powder production apparatus and metal powder |
| 08/19/2009 | CN101509084A Method for producing nodulizing agent |
| 08/05/2009 | CN101497969A High-performance weather-resisting anti-seismic steel for building and production method thereof |
| 08/05/2009 | CN101497965A Steel for cutting edge of shovel of loader and digger and production method thereof |
| 08/04/2009 | US7569092 Inoculant products comprising bismuth and rare earths |
| 07/30/2009 | WO2009093616A1 Slag removing apparatus, and slag removing method |
| 07/29/2009 | CN101492754A Sintering palletizing desulfurization method in blast furnace |
| 07/29/2009 | CN101492753A Mechanical agitation desulfuration method for hot metal |
| 07/23/2009 | WO2009091558A1 Submerged combustion melter |
| 07/15/2009 | CN100513586C Process and device for producing spheroidal graphite cast iron tube |
| 07/01/2009 | CN101473047A Improved method of producing ductile iron |
| 06/30/2009 | US7553443 Metal powder production apparatus |
| 06/23/2009 | CA2470836C Inoculant pellet for late inoculation of cast iron |
| 06/17/2009 | EP2071043A1 Method for the detersion of cast iron in liquid state |
| 06/17/2009 | CN101457271A Rare earth silicon and magnesium nodulizer |
| 06/10/2009 | CN101451172A Si-Mg-Fe alloy nodularizer |
| 06/10/2009 | CN101451171A Rare-earth calcium nodularizer |
| 06/10/2009 | CN101451170A Rare-earth copper nodularizer |
| 06/10/2009 | CN101451169A Spheroidal graphite cast iron nodularizer |
| 06/04/2009 | WO2009069794A1 Method and apparatus for treating high-temperature slag |
| 06/02/2009 | US7540717 Membrane nanopumps based on porous alumina thin films, membranes therefor and a method of fabricating such membranes |
| 05/27/2009 | EP2061911A1 Method and apparatus for charging hot direct reduced iron from hot transport vessels into a melter or finisher |
| 05/27/2009 | CN101440418A Desulfuring spray gun |
| 05/27/2009 | CN100491292C Alumina-silicon carbide-carbon brick for torpedo tank and torpedo tank lining structure therewith |
| 05/13/2009 | CN101429616A Ductile cast iron and its smelting process and usage |
| 04/29/2009 | CN101418362A Method for inhibiting or slowing down inoculation fade |
| 04/29/2009 | CN101418361A Gray cast iron inoculation process |
| 04/29/2009 | CN101418360A Carbon and silicon inoculant |