| Patents for C21C 1 - Refining of pig-iron; Cast iron (3,137) |
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| 01/18/2001 | WO2001004367A1 Production method for porous metal body |
| 01/17/2001 | EP1068365A1 A method to produce compacted graphite iron (cgi) |
| 01/17/2001 | CN1280205A Cladding nodulizer for high strength nodular cast iron alloy |
| 01/17/2001 | CN1280204A Cladding nodulizer for high toughness nodular cast iron alloy |
| 01/10/2001 | EP1067202A2 Method of desulfurizing molten iron alloy |
| 01/10/2001 | CN2414077Y Silicon-calcium mixed rareearth filement core thread |
| 01/10/2001 | CN1279727A Iron castings with compacted or spheroidal graphite produced by determining coefficients from cooling curves and adjusting the content of structure modifyng agents in the melt |
| 01/10/2001 | CN1279294A Deslphurizing method for smelting iron alloy |
| 01/09/2001 | CA2195922C Briquette as an additive for metallurgic purposes comprising silicon-containing residues, and process for its production |
| 12/26/2000 | CA2223785C Cast iron indefinite chill roll produced by the addition of niobium |
| 12/13/2000 | EP1059360A2 Method of desulfurizing molten iron |
| 12/13/2000 | CN1276434A Method for desulfurizing melted iron |
| 10/19/2000 | DE19917008A1 Alloying additive moulding, for cast iron production in cupola, induction or arc furnaces, comprises silicon carbide granules and a binder containing molasses and optionally calcium hydroxide |
| 10/17/2000 | CA2035886C Method for dephosphorization of chromium-containing molten pig iron with reduced oxidation loss of chromium |
| 10/03/2000 | US6126713 Additive for use in producing spheroidal graphite cast iron |
| 10/03/2000 | CA2008046C Process for the concentration of dust in a cupola furnace with metal particles |
| 09/27/2000 | EP1038039A1 Cast iron inoculant and method for production of cast iron inoculant |
| 09/27/2000 | CN1056887C Control method of oxygen concentration for vertical quick melting furnace |
| 09/20/2000 | EP1036776A1 Unburned carbon-containing refractory material and vessel for molten metal |
| 09/19/2000 | CA2014180C Liquid treatment installation using a gas, and process for the same |
| 09/13/2000 | EP1035392A2 Shaft furnace operating method |
| 09/13/2000 | EP1035221A2 Burner, shaft furnace and shaft furnace operating method |
| 09/13/2000 | CN2396060Y Passive metal magnesium base core wire |
| 09/07/2000 | DE19909743A1 Brenner, Schachtofen und Verfahren zum Betreiben eines Schachtofens Burner shaft furnace and method for operating a shaft furnace |
| 09/07/2000 | DE19909742A1 Verfahren zum Betreiben eines Schachtofens A method for operating a shaft furnace |
| 09/06/2000 | EP1032718A1 Iron castings with compacted or spheroidal graphite produced by determining coefficients from cooling curves and adjusting the content of structure modifyng agents in the melt |
| 08/29/2000 | US6110414 Vessel for metallurgical purposes |
| 08/23/2000 | CN1264039A Method for determination of amount of carbon and silicon in molten iron |
| 08/17/2000 | WO2000047781A1 Desulphurizing mixture based on calcium carbide and/or lime |
| 08/15/2000 | US6102983 With lamellar, compacted or spheroidal graphite |
| 08/15/2000 | US6102981 Method for controlling the composition of a cast iron melt |
| 08/10/2000 | DE10004910A1 Carbon and silicon content thermal analysis, for molten cast iron or pig iron, comprises comparing crystallization start temperatures of melts in sample vessels containing small amounts of tellurium and silicon respectively |
| 08/09/2000 | CN1262331A Electrothermal technology for smelting and conticasting |
| 08/08/2000 | US6099614 Method and equipment for a treatment in molten cast iron baths with reaction materials having a low or high production of gas |
| 08/01/2000 | CA2054244C Powdered desulfurizing reagent and process of use |
| 07/27/2000 | DE19901574A1 Low cement content silicon carbide moulding, used as a furnace alloying additive in cast iron foundries, contains silicon carbide granules of particle size distribution providing a reduced compacted particle interspace size |
| 06/29/2000 | WO2000037699A1 Method for predicting the microstructure of solidifying cast iron |
| 06/29/2000 | WO2000037698A1 Method for determining the needed amount of structure modifying agent to be added to cast iron |
| 06/27/2000 | US6079476 Method for producing pre-treated molten metal castings |
| 06/21/2000 | EP1010767A1 Preparation of metal feedstock from wasted metal products |
| 06/21/2000 | EP1010765A1 Desulfuring agent |
| 06/21/2000 | DE19857733A1 Entschwefelungsmittel Desulfurization |
| 06/21/2000 | CN1053709C Process for producing the cast type minorcaliber nodular cast iron pipe using the cupola furnace melted iron |
| 06/14/2000 | EP1007744A1 Method for desiliconizing pig iron before refining it to steel |
| 06/13/2000 | US6073680 Strip casting |
| 06/07/2000 | CN1053130C Method for casting over-multiphase metal alloy containing primary-phase scatted in multiphase |
| 05/17/2000 | EP0874916B1 Composition for inoculating low sulphur grey iron |
| 05/16/2000 | US6063157 From molten high carbon ferrous metal by conducting the highly reducing and highly oxidizing reactions at two different locations within the same reaction vessel. |
| 04/26/2000 | CN1251618A Electric furnace with insulated electrode and process for producing molten metals |
| 04/12/2000 | EP0992596A2 Operating process for a shaft furnace and shaft furnace |
| 04/06/2000 | WO2000018700A1 Unburned carbon-containing refractory material and vessel for molten metal |
| 04/05/2000 | EP0866880B1 Desulphurating agent for co-injection treatment of pig iron melts |
| 04/05/2000 | EP0795037B1 Equipment for treatment in molten cast iron baths with reaction materials having a low or high production of gas |
| 03/22/2000 | EP0963449A4 Electric furnace with insulated electrodes and process for producing molten metals |
| 03/22/2000 | EP0714989B1 Steel manufacturing method using converter dephosphorisation |
| 03/22/2000 | CN1050634C Production of foundry iron |
| 03/21/2000 | US6039786 Process for melting a metal charge in a rotary furnace and rotary furnace for implementing such a process |
| 03/02/2000 | WO2000011227A1 Elongated product used for desulphurization of a steel bath |
| 02/23/2000 | CN2365230Y Nodulizer for smelting nodular cast iron |
| 02/10/2000 | DE19860281A1 Operation of a shaft furnace for production of metals involves use of, at most, all but one of the nozzles and/or lances on the furnace circumference for delivery of oxygen or a gas mixture containing oxygen into the furnace |
| 02/10/2000 | DE19849336A1 Operation of a shaft furnace, particularly a cupola furnace, for production of metals involves suction of a gas mixture containing oxygen by means of at least one injector nozzle from the tuyere duct(s) |
| 02/09/2000 | CN1243882A Low-basicity less-slag iron smelting technology for blast furnace with external desulfurizing greatly of molten iron |
| 01/27/2000 | DE19833037A1 Verfahren zum Entschwefeln einer Roheisenschmelze Process for desulfurizing molten pig iron |
| 01/27/2000 | DE19833036A1 Verfahren zum Entschwefeln einer Roheisenschmelze Process for desulfurizing molten pig iron |
| 01/26/2000 | EP0974674A1 Method for desulferization of molten pig iron |
| 01/26/2000 | EP0974673A1 Method for the desulfurization of molten pig iron |
| 01/26/2000 | EP0973951A1 Desulfurizing mix and method for desulfurizing molten iron |
| 01/18/2000 | US6015448 Contacting the melt with a desulphurization reagent in ground form wherein the reagent is a slag accumulating in secondary steelmaking |
| 01/18/2000 | CA2030977C Magnesium treatment process and apparatus for carrying out this process |
| 01/11/2000 | US6013141 Cast iron indefinite chill roll produced by the addition of niobium |
| 01/04/2000 | US6010658 Raising and lowering means which move independently |
| 12/29/1999 | CN1240025A Novel heat analysing system |
| 12/21/1999 | US6003589 Strip casting apparatus |
| 12/16/1999 | WO1999064635A1 Method for desiliconizing pig iron before refining it to steel |
| 12/16/1999 | CA2299277A1 Method for desiliconizing pig iron before refining it to steel |
| 12/15/1999 | EP0963449A1 Electric furnace with insulated electrodes and process for producing molten metals |
| 12/15/1999 | EP0963265A1 Vessel for metallurgical purposes |
| 12/15/1999 | CN1047336C Method and device for preparation of semi-product in metallurgical conversion |
| 11/30/1999 | US5993508 Briquette as an additive for metallurgic purposes comprising silicon-containing residues, and process for its production |
| 11/25/1999 | WO1999060173A1 Method for integrated desulfurizing of pig iron melt and steel melt |
| 11/25/1999 | DE19913645A1 Desulphurizing slag regeneration |
| 11/25/1999 | CA2332909A1 Method for integrated desulfurizing of pig iron melt and steel melt |
| 11/18/1999 | DE19820730A1 Agent for treating pig iron, cast iron, and similar melts |
| 11/17/1999 | CN1046553C Method and apparatus for treatment in molten cast iron baths reaction material having low or high production of gas |
| 11/03/1999 | CN1046139C Pre-dephosphorizing method for molten iron |
| 10/26/1999 | US5972072 Desulfurizing mix |
| 10/20/1999 | EP0891431B1 Desulphurising calcium carbide blend |
| 10/13/1999 | EP0948740A1 New method |
| 10/07/1999 | WO1999050467A1 A method to produce compacted graphite iron (cgi) |
| 10/06/1999 | EP0946762A2 Process for reducing fume emissions during molten metal transfer |
| 10/06/1999 | EP0946760A1 Method and device for producing silicon-rich foundry iron |
| 09/29/1999 | EP0745143B1 Agent and its use for treating pig or cast iron melts for desulphurisation purposes |
| 09/15/1999 | EP0941471A1 Method for judging the properties of molten cast iron |
| 09/15/1999 | CN2338348Y Blowing gun transmission equipment |
| 09/14/1999 | US5951738 An apparatus for producing coated magnesium granules comprising a device forming droplets of the molten metal, a fluidized bed for receiving the droplets, coating with a chloride salt, forming a protective anti-oxidation coatings |
| 09/10/1999 | WO1999045156A1 METHOD OF MAKING Mg TREATED IRON WITH IMPROVED MACHINABILITY |
| 08/31/1999 | CA2175396C Method of installing a refractory lining |
| 08/18/1999 | EP0936007A1 Device for filtering and treating molten metal |
| 08/18/1999 | EP0828861B1 On-line production control of cast irons by measuring the surface tension of the base treated iron |
| 08/18/1999 | EP0806996B1 A method of manufacturing cast products which are cast in a single-piece having controlled variations of compacted graphite iron and grey cast iron |