Patents
Sitemap › C21 - Metallurgy of iron › C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steel; Treatment in molten state of ferrous alloys › C21C 1 - Refining of pig-iron; Cast iron
Patents for C21C 1 - Refining of pig-iron; Cast iron (3,137)
11/2012
11/14/2012CN102776310A Pretreating dephosphorizing agent for molten iron containing metallic magnesium residues
11/14/2012CN102021494B Weather resistant thick steel plate and manufacturing method thereof
11/07/2012CN102766720A Desulphurization spray gun and desulphurization method thereof
11/07/2012CN102766719A Production method of middle-carbon and/or low-carbon ferromanganese
11/07/2012CN102181779B Composite inoculant used for grey cast iron and preparation method and application method of composite inoculant
10/2012
10/24/2012CN102747263A Carbon-silicon incubater
10/24/2012CN102747181A Smelting method of 9Ni steel
10/17/2012CN102735053A LF (low frequency) furnace device, and method for processing molten iron of blast furnace
10/17/2012CN102732679A Composited desulfurizer for KR, preparation method and application thereof
10/17/2012CN102732664A Ductile cast iron production method and production device
10/17/2012CN102732663A Method for carrying out dephosphorization, desilicication and desulphurization on molten iron in process of folding iron
10/17/2012CN102728794A Nodulizer and inoculant special for large-section bulb iron roll
10/10/2012CN102719728A Technique for producing anti-acid pipeline steel by RH-LF-VD refining
10/10/2012CN102719616A Molten iron desulfurizing method and desulfurizing device thereof
10/10/2012CN102719600A Production method of ultra low carbon steel
10/10/2012CN102719590A Device and method for desulfurization by rotating inverted T-shaped spray gun
10/10/2012CN102719589A Molten vanadium-titanium iron desulfurizing agent and preparation method thereof as well as desulfurization method using desulfurizing agent
10/10/2012CN102719588A Slag washing desulphurization method for molten iron utilizing residue thermal-state steel slag
10/10/2012CN102717035A Low Si-Mg ratio and low RE-Mg nodularizer
10/10/2012CN101921889B Manufacture method of low-phosphorus molten iron
10/03/2012EP2505282A1 Inoculation procedure and device
10/03/2012CN202465768U Melted iron desulfurization spray gun utilizing granular magnesium
10/03/2012CN102712960A Operation method for mechanically stirring chrome-containing molten iron
10/03/2012CN102712034A Inoculation procedure and device
10/03/2012CN102703798A Low-temperature ductile iron and casting method thereof
10/03/2012CN102703636A Continuous refining method and continuous refining facility
10/03/2012CN102000797B Method for producing nodular cast iron pipe fittings with vanadium-bearing titanomagnetite as raw material
09/2012
09/26/2012CN202450110U Baker tube for low-temperature roasting in furnace lining of iron mixing furnace
09/26/2012CN102690986A Smelting method for medium-thin wall cast-state nickel-free low-temperature ductile cast iron
09/20/2012US20120237993 Polypeptides Having Cellobiohydrolase 1 Activity and Polynucleotides Encoding Same
09/19/2012CN202440526U Multichannel molten iron desulfurization spray gun
09/19/2012CN202440525U Multichannel hot metal pretreatment and desulfuration spray gun
09/19/2012CN102676725A Method for controlling nonmetal inclusions in X70 stage acidoresistant pipeline steel
09/13/2012WO2012121078A1 Impeller rotation speed control method
09/12/2012CN202430250U Molten iron pretreatment equipment
09/12/2012CN202427933U Nodulizing cover ladle
09/12/2012CN102660657A Low-cost production process for as-cast high-elongation nodular cast iron
09/12/2012CN102094101B Hydraulic transmission type metal mixer
09/12/2012CN101928801B Blowing slag-removing equipment for molten iron pretreatment
09/05/2012CN202415603U Double channel molten iron desulfurization spray gun
09/05/2012CN202415588U Stirring device for desulfurizing molten iron by KR (Kambara Reactor) method
09/05/2012CN202415587U Hose orifice protective hood for conveying metal hose in hot metal desulfurization
09/05/2012CN202411399U KR iron ladle lining structure
09/05/2012CN202411353U Stream inoculation device
09/05/2012CN102652967A Method for manufacturing high-magnesium-alloy solid cored wire
09/05/2012CN101812626B Vermiculizer for thin-wall cast iron and melting method thereof
08/2012
08/27/2012DE202007019452U1 Schachtofen Shaft furnace
08/22/2012CN202390465U Molten iron desulfuration/dephosphorization rotary spray gun
08/22/2012CN102643945A Novel knotted reactor (KR) desulfurization stirring method
08/16/2012WO2012108529A1 Method for desiliconizing and dephosphorizing hot metal
08/15/2012CN202380037U Built-in elbow pipe desulphurization lance
08/15/2012CN202380036U Stirring device for molten iron desulphurization
08/15/2012CN202380014U Molten iron desulfurization and agitation spraying gun
08/15/2012CN202380013U Kambara Reactor (KR)-based molten iron desulphurization stirring device
08/15/2012CN202380012U Swing type molten iron predesulfuration lance
08/15/2012CN202380011U Double-nozzle rotary desulfurization spray gun
08/15/2012CN202380010U L-shaped molten iron predesulfuration lance
08/15/2012CN102634723A Ferrite ductile iron used at low temperature and manufacturing method thereof
08/15/2012CN102634625A Method for producing ductile cast iron by utilizing desulfurized slags
08/15/2012CN102634624A Method for tapping and pouring hot metal at bottom from hot metal ladle
08/08/2012CN102628093A Iron and steel tempering and purifying system
08/08/2012CN102134625B Method for producing castings by smelting iron chips with medium frequency furnace and briquetting
08/01/2012CN102618781A Hot-rolled H-steel for low temperature-resistance structure and preparation method for hot-rolled H-steel
08/01/2012CN102618688A Non rare earth nodularizer belonging to Mn-Mg alloys
08/01/2012CN102618687A Alloy adding method for smelting molybdenum chromium cast iron in cupola
08/01/2012CN102615255A Special nodulizer for low-temperature impact resistant and high-ductility nodular cast iron and method for preparing special nodulizer
07/2012
07/26/2012WO2012098169A1 Method and nozzle for suppressing the generation of iron-containing vapor
07/25/2012CN202347041U Anti-tippling control system for iron-mixing furnace
07/25/2012CN102605134A Manufacture method of vermicular cast iron steam cylinder cover
07/25/2012CN102154533B Jet stirrer for mechanical stirring and desulfurizing of molten iron
07/25/2012CN102021467B Nodular cast iron nodulizer
07/19/2012US20120180601 Method of desulfurizing steel
07/19/2012DE102011008691A1 Agent, useful e.g. to treat metal melts, preferably for desulfurization of pig iron melts, comprises an element, in elemental and/or bonded state, comprising alkali metal, alkaline earth metal or earth metal (first Component) and bitumens
07/19/2012DE102011008690A1 Agent, useful for desulfurizing and/or dephosphorizing crude iron melt, comprises calcium oxide, optionally additional calcium-, magnesium-, or alkali-containing component and mineral and/or paraffinic oil
07/19/2012CA2829030A1 Agent for treating molten metals, method for the production and use thereof
07/18/2012CN102586668A Coverage inoculator
07/18/2012CN102586547A Production method for low-cost clean steel
07/18/2012CN102586545A Flow control method for powder blowing in molten iron dephosphorization pretreatment process
07/18/2012CN102586531A Method for producing molten iron by using powered mine and non-coking coal
07/18/2012CN102586516A Method for preparing slag conglomeration agent for iron steel
07/18/2012CN102134624B Method for retrieving off-line accidents of torpedo type car
07/18/2012CN101654765B Gap-free hot-rolled steel strip
07/12/2012US20120175828 Method and device for producing pig-iron based stainless steel without using a supply of electrical energy
07/11/2012CN102575306A Top lance for refining and method for refining molten iron using same
07/11/2012CN102560224A Composite inoculant
07/11/2012CN102559982A Method for removing manganese from molten iron in top and bottom combined blown convertor
07/05/2012WO2012090761A1 Light cast-iron product
07/05/2012US20120167718 Method for scooping-up slag from liquid iron
07/04/2012EP2471960A1 Method for manufacturing a cast iron part and cast iron part thus obtained
07/04/2012CN102534362A Preparation technology for fine-grained steel 510L
07/04/2012CN102534355A Niobium-containing silicon-rich spherical graphite cast iron, preparation of spherical graphite cast iron and piston ring prepared made of spherical graphite cast iron
07/04/2012CN102534352A Production method of spheroidal graphite cast iron for hydraulic parts and prepared spheroidal graphite cast iron
07/04/2012CN102534351A Furnace charge for synthesizing cast iron and method for preparing submarine petroleum pipelines from furnace charge, and pouring system
07/04/2012CN102534120A Smelting process for production of super-low sulphur steel
07/04/2012CN102534090A Preparation method of -60-DEG C low-temperature impact nodular cast iron
07/04/2012CN102534089A Alloy cast iron rotor seat of twin-screw compressor
07/04/2012CN102534088A Process for demanganizing molten iron by utilizing dephosphorizing station
07/04/2012CN102071276B Method for reducing silicon content of molten iron
06/2012
06/27/2012EP2468903A1 Manufacturing process of spheroidal castings
06/27/2012CN102517421A Multichannel molten iron desulfurization spray gun
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