| Patents for C21C 1 - Refining of pig-iron; Cast iron (3,137) |
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| 01/31/1995 | US5385599 Using mixture of raw mineral material and calcium compound |
| 01/26/1995 | DE4324494A1 Method of treating cast-iron melts |
| 01/25/1995 | EP0634962A1 A method of manufacturing cast products which are cast in a single-piece structure having an inhomogeneous graphite structure |
| 01/25/1995 | CN1097807A Method for smelting and casting pig iron by electric arc furnace |
| 01/18/1995 | EP0633817A1 The determination of the carbon equivalent in structure modified cast iron. |
| 01/12/1995 | WO1995001458A1 Steel manufacturing method using converter |
| 12/27/1994 | CA1333662C Process for melting cold iron material |
| 12/21/1994 | EP0629709A1 Process and inoculant for the production of cast iron |
| 12/20/1994 | US5373888 Providing mother melt with modifying agent for tending to cause carbon to precipitate as nodular graphite, removing sample oxidizing sample |
| 12/14/1994 | EP0553216B1 Method for extracting zinc present in liquid cast iron, and means for implementing such method |
| 12/08/1994 | WO1994028186A1 Additive for iron-based materials |
| 12/08/1994 | WO1994027763A1 Microstructurally refined multiphase castings |
| 12/08/1994 | DE4416699A1 Process for the utilization of metallic residual material, in particular turnings material, in melting furnaces |
| 11/30/1994 | CN1095762A Iron and steel smelting process by using aluminium slag |
| 11/29/1994 | US5368631 Iron desulfurization with calcium |
| 11/22/1994 | US5366539 Process for the desulphurization treatment of pig iron melts |
| 11/02/1994 | EP0621813A1 Suppression of fume in metal pouring |
| 11/02/1994 | CN1026420C Cast iron composite nursing agent |
| 10/26/1994 | CN1026339C High strength gray cast iron with casting bainite |
| 10/25/1994 | US5358550 Desulfurization agent |
| 10/19/1994 | CN1026251C Method for increasing specific elongation of hot-mould centrifugal nodular cast iron tube |
| 09/28/1994 | CN1092814A Production of titanium-bearing cast iron from blast furnace titanium slag and furnace protection |
| 09/21/1994 | EP0616040A1 Treating method of cast iron with lamellar graphite to produce cam shafts |
| 09/13/1994 | CA1331952C Method of testing the magnesium content of magnesium-treated cast iron |
| 09/07/1994 | EP0613956A1 Process for making gray cast iron for the surface-remelting treatment |
| 08/24/1994 | CN1091155A High malleable wear-resisting white cast iron and making method thereof |
| 08/16/1994 | US5337799 Controlling and correcting the composition |
| 08/09/1994 | US5336293 Desulfurizing agent for pig iron and cast iron, and process for desulfurization |
| 07/13/1994 | CN1025439C Modifying technology for helminth graphite cast iron |
| 07/12/1994 | US5328502 Method for controlling and regulating the primary nucleation of iron melts |
| 07/05/1994 | US5326737 Cerium oxide solutions for the desulfurization of gases |
| 06/29/1994 | CN1088619A Cast condition ductile iron compound additive |
| 06/22/1994 | EP0602540A1 Agent for desulphurization, dephosphorization, desiliconization and denitrification of molten pig or cast iron and of molten ferrochrome or ferromanganese as well as a process |
| 06/15/1994 | CN1087952A Directly pouring casting technique using melted waste iron filings |
| 06/08/1994 | CN2167771Y Waste gas purifying and dust collector for cupola |
| 06/07/1994 | US5318278 Apparatus for making mixtures of reactive melts |
| 06/01/1994 | DE4325208A1 Prodn. of casting refractories for lining ladle |
| 06/01/1994 | CN1087386A Method for preparing iron-base products made from corundum slag |
| 05/03/1994 | CA1329007C Metal treatment vessel and method |
| 04/27/1994 | EP0594326A1 Lance for inrtroducing reactants into molten metal |
| 04/19/1994 | CA1328563C Method of treating metal melts and apparatus for carrying out the method |
| 04/06/1994 | CN1084958A Permanent body all purifying multi-function cast iron smelting furnace |
| 04/06/1994 | CN1084900A Method and apparatus for the production of nodular or compacted graphite iron castings |
| 04/06/1994 | CN1024139C Nodularizer for thick and large fracture surface ductile iron work piece |
| 03/30/1994 | CN1084579A Polycompound nodulizer for nodular cast iron |
| 03/15/1994 | US5294243 Continuous monitoring of slag content and viscosity; adjustment with fluxing agent and glass or gravels |
| 03/09/1994 | CN1083592A The determination of the carbon equivalent in structure modified cast iron |
| 03/09/1994 | CN1083534A Composite bed low-silicon nodulizer |
| 03/09/1994 | CN1083422A A method of manufacturing cast products which are cas in a single-piece structure having an inhomogeneous graphite structure |
| 02/16/1994 | EP0582970A1 Additive for desulfurization of liquid pig and cast iron and process for desulfurizing |
| 02/15/1994 | US5286008 System for inerting a casting vessel used for transporting molten metal |
| 02/08/1994 | US5284504 Powdered desulfurizing reagent and process of use |
| 02/08/1994 | CA1326838C Process for the addition of metal elements into metal melts |
| 02/03/1994 | DE4225483A1 Loose material feed throttle - has a conical shaft from pressure zone to low pressure carrier gas zone with a moving dosing flap |
| 01/26/1994 | CN1081208A Nodulizer alloy and its usage technique for producing ductile iron with non-inoculation |
| 01/25/1994 | CA1326369C Cast iron parts, in particular molds for glass making, in which the structure of the cast iron varies through the thickness of the parts |
| 01/19/1994 | CN1023573C Vessel for instantaneous dense phase spheroidizing, creeping and inoculation of nodular graphite cast iron |
| 01/19/1994 | CN1023572C Compound spheroidizing modificator |
| 01/12/1994 | EP0578517A1 Process for treating a molten metal during a casting operation using a filter and filter used therefor |
| 01/05/1994 | CN1023410C Production of ingot iron with solid decarbonising pig iron and remelting in electric furnace |
| 12/21/1993 | US5271539 Pressure type automatic pouring furnace for casting |
| 11/23/1993 | US5264023 Cored wire with a content of passivated pyrophoric metal, and the use thereof |
| 11/03/1993 | CN1077994A Additive for iron-base material |
| 10/28/1993 | WO1993020969A1 A method of manufacturing cast products which are cast in a single-piece structure having an inhomogeneous graphite structure |
| 10/28/1993 | WO1993020965A1 The determination of the carbon equivalent in structure modified cast iron |
| 10/28/1993 | CA2133333A1 The determination of the carbon equivalent in structure modified cast iron |
| 10/28/1993 | CA2133331A1 A method of manufacturing cast products which are cast in a single-piece structure having an inhomogeneous graphite structure |
| 10/27/1993 | CN1022574C Dusulfurization process for cupola furnace |
| 10/13/1993 | CN1077229A Cast-iron compound inoculant |
| 10/13/1993 | CN1022421C Process for casting nodular graphite cast iron with as-cast ferrite by metal mould |
| 09/30/1993 | DE4210179A1 Additive mixt. for smelting and refining of steel and pig iron@ - contg. deoxidising agent, filler and refining agent, and gives improved mechanical properties and reduced allowing and deoxidising agent requirement |
| 09/29/1993 | EP0561805A1 Device for the late addition of a particulate alloy during casting of liquid metal. |
| 09/21/1993 | US5246485 Method and apparatus for preventing fume production when transporting molten metal from a metallurgical vessel to casting vessels |
| 09/08/1993 | EP0394443B1 Method and apparatus for preliminary treatment of hot metal |
| 09/07/1993 | US5242480 A process of mixing and agglomeration |
| 09/02/1993 | WO1993017131A1 Process for desulphurising irons melts with minimal slag production and suitable device therefor |
| 09/02/1993 | DE4206091A1 Verfahren zur entschwefelung von eisenschmelzen bei minimalem schlacke-anfall und eine dafuer geeignete vorrichtung A process for the desulfurization of iron melts with minimal slag attack and a device suitable |
| 09/02/1993 | CA2130996A1 A method for desulfurizing iron melts with minimal slag formation and an apparatus for carrying it out |
| 08/31/1993 | US5240673 Disposing molten flux of silicon dioxide and calcium fluoride on molten alloy, stirring to mix, forming alumina, releasing silicon into alloy |
| 08/04/1993 | EP0553188A1 A method for the production of compacted graphite cast iron. |
| 08/04/1993 | EP0553165A1 Method for the production of ductile cast iron. |
| 06/30/1993 | EP0548182A1 Metal-melting furnaces. |
| 06/23/1993 | CN1073488A Method for increasing specific elongation of nodular cast iron tube |
| 06/16/1993 | EP0546351A2 Cored wire containing a passivated pyrophoric metal and its application |
| 06/09/1993 | CN1072964A Intensive-graphitized alterant |
| 06/02/1993 | CN1021061C Nodularizing additive for casting high toughness nodular graphite cast iron |
| 06/02/1993 | CN1021060C Nodularizing additive for casting high strength nodular graphite cast iron |
| 06/01/1993 | US5215709 Method and device for treatment of metal baths by means of a material having a high gas vapor potential |
| 05/27/1993 | WO1993009898A1 Suppression of fume in metal pouring |
| 05/26/1993 | EP0456641B1 Process for preventing the formation of flue gases in metallurgical processes and during the transport of molten metal from a metallurgical vessel to casting vessels and device for transporting molten metals from a metallurgical furnace to a casting vessel |
| 05/25/1993 | US5213779 Process for optimizing the removal of NOX and SOX from gases utilizing lanthanide compounds |
| 05/19/1993 | EP0541817A1 Technological line for production of metal strip and a transporting device therefor |
| 05/05/1993 | EP0540405A1 Process for manufacturing magnetic steel strip by direct casting |
| 04/29/1993 | WO1993008309A1 Device for the late addition of a particulate alloy during casting of liquid metal |
| 04/28/1993 | EP0538251A1 Process for making as-cast ferritic spheroidal graphitic ductile iron |
| 04/27/1993 | US5205856 Inoculation wire |
| 04/07/1993 | EP0535386A1 Process for producing a basic iron for nodular cast iron |
| 03/31/1993 | CN1070426A Production of steel-smelting metal raw materials by use of pig iron solid decarbonization method |
| 03/30/1993 | US5198016 Product for the desulphurization of molten pig iron or steel based on coated magnesium |
| 03/17/1993 | EP0531418A1 A method of manufacturing compacted graphite cast iron. |