| Patents for C21C 1 - Refining of pig-iron; Cast iron (3,137) |
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| 03/10/1993 | EP0530552A1 Process for desulfuration treatment of molten pig iron |
| 03/01/1993 | CA2076743A1 Process for the desulphurization treatment of pig iron melts |
| 02/24/1993 | CN1069290A Nodular agent for large nodular cast iron component part |
| 02/24/1993 | CN1069287A Cast iron desulphurising agent and desulfurization process |
| 02/17/1993 | CN1069073A Method for direct smelting gray iron with scrap white iron |
| 02/16/1993 | US5186233 Forming iron alloy melt, desulfurization, adding sulfur containing material and magnesium and lanthanide containing materials to form spheroids |
| 02/03/1993 | EP0525540A1 Cylinder liner unit for use in an internal combustion engine |
| 01/20/1993 | CN1068149A Roller made of infinitely chilled vanadium and titanium contained nodular cast iron and its casting process |
| 01/20/1993 | CN1068148A Compound spheroidizing inoculant |
| 01/13/1993 | CN1067958A Cylinder cover casting process with recovered cast iron powder and anthracite coal furnace |
| 01/12/1993 | US5178826 Molding and adding magnesium and silicon containing treatment agent |
| 01/07/1993 | EP0521519A2 Method and device for analysis adjustment of reactive melts |
| 01/06/1993 | CA2073128A1 Method for making mixtures of reactive melts and apparatus for use therein |
| 12/17/1992 | DE4115771A1 Desulphurising process for pig iron@ in blast furnace - by injection of coal dust and magnesium@ dust to which alkaline materials can be added |
| 12/16/1992 | EP0517770A1 A method for controlling and regulating the primary nucleation of iron melts. |
| 12/16/1992 | CN1019508B Method for charging rare-earth oxid dregs into cupola furnace |
| 12/09/1992 | EP0517395A1 Method and apparatus for the production of nodular or compacted graphite iron castings |
| 12/09/1992 | CN1066887A Dephosphorization in cupola |
| 12/02/1992 | CA2068772A1 Method and apparatus for the production of nodular or compacted graphite iron castings |
| 12/01/1992 | US5167916 Method for spherodizing molten cast iron and ladle for use in the spherodizing |
| 11/19/1992 | EP0514294A1 Agent for desulfphuration of cast iron consisting of magnesium coated with calcium carbide |
| 11/11/1992 | EP0512255A1 Method and device for treatment of metal baths by means of a material having a high gas or vapour potential |
| 11/04/1992 | CN1065886A Treatment container for instantaneous dense flow nodulizing (inoculation) of nodular cast iron |
| 11/03/1992 | US5160477 Temperature maintenance and metallurgical treatment furnace |
| 10/28/1992 | EP0511121A1 Desulfurisation agent for pig iron, comprising calcium carbide and an organic binder |
| 10/20/1992 | US5156671 Method for dephosphorization of chromium-containing molten pig iron with reduced oxidation loss of chromium |
| 10/18/1992 | WO1992018270A1 Technological line for production of metal strip and a transporting device therefor |
| 10/18/1992 | CA2085736A1 Process line for the production of metal strips and transporting means thereto |
| 10/13/1992 | US5154756 Method and apparatus for preliminary treatment of molten hot metal |
| 09/23/1992 | EP0505141A1 A method and a mold for manufacturing, repairing and reconstruction molten metal containment vessels |
| 09/22/1992 | US5149364 Desulfurization agent |
| 08/19/1992 | EP0499269A1 Cored wire for inoculation |
| 08/15/1992 | CA2061164A1 Inoculation wire |
| 07/14/1992 | US5129631 Handling molten materials |
| 07/14/1992 | US5129629 Apparatus for feeding material into a molten stream |
| 06/10/1992 | CN1061804A Nodularizing additive for casting high toughness nodular graphite cast iron |
| 06/10/1992 | CN1061803A Nodularizing additive for casting high strength nodular graphite cast iron |
| 06/02/1992 | CA1302096C Wire injection nozzle |
| 05/19/1992 | CA1300895C Process for reduction of impurities content of hot metal |
| 05/19/1992 | CA1300894C Gray cast iron inoculant |
| 05/13/1992 | EP0485309A1 Product based on coated magnesium for the desulphurizing of cast iron or liquid steel |
| 05/13/1992 | EP0484743A1 Cored wire for the treatment of molten cast iron |
| 05/06/1992 | CN1060804A Apparatus for inert tretment of pouring container of transporting melt metal |
| 05/05/1992 | CA1299877C Metallurgical treatment agents |
| 04/28/1992 | US5108496 Method for the concentration of dusts in a cupola furnace with metal particles |
| 04/22/1992 | CN1016359B Alloy substituting bismuth for inoculated cast iron |
| 04/21/1992 | WO1992007099A1 Device for rendering inert casting vessels for transporting molten metals |
| 04/21/1992 | CA2071825A1 Device for rendering inert casting vessels for transporting molten metals |
| 04/16/1992 | WO1992006810A1 Method for the production of ductile cast iron |
| 04/16/1992 | WO1992006809A1 A method for the production of compacted graphite cast iron |
| 04/16/1992 | WO1992006222A1 Method for extracting zinc present in liquid cast iron, and means for implementing such methods and products thus obtained |
| 04/16/1992 | CA2093419A1 Method for the production of ductile cast iron |
| 04/16/1992 | CA2093416A1 Method for the production of compacted graphite cast iron |
| 04/08/1992 | CN1060114A Gas curtain technology of iron mixing furnace and smoke and dust trapping device |
| 03/31/1992 | US5100612 Spheroidal graphite cast iron |
| 03/31/1992 | US5100110 Treatment vessel for the treatment of molten metal melts |
| 03/24/1992 | US5098651 Magnesium treatment process and apparatus for carrying out this process |
| 03/19/1992 | WO1992004587A1 Metal-melting furnaces |
| 03/17/1992 | CA1297302C Process for continuous purification of hot metal |
| 02/19/1992 | CN1015553B Cast iron strong graphited inoculant |
| 02/18/1992 | US5089049 Coating particles of calcium, magnesium or their alloys with derivatives of s-triazine or guanidine |
| 02/11/1992 | US5087292 Recirculating molten metal in bath, ejecting near gas outlet |
| 02/11/1992 | US5087290 Desulfurization, magnesium treatment and inoculation in single step |
| 02/11/1992 | CA1295485C Desulfurizing iron |
| 02/05/1992 | EP0469621A2 Method for spherodizing molten cast iron and ladle for use in the spherodizing |
| 01/29/1992 | EP0468832A1 Furnace for holding the temperature and for metallurgical treatment |
| 01/22/1992 | EP0467545A2 Iron desulfurization additive and method for introduction into hot metals |
| 01/14/1992 | CA2046777A1 Oven with temperature holding for metallurgical treatment |
| 01/13/1992 | WO1992001072A1 Process for making as-cast ferritic spheroidal graphitic ductile iron |
| 01/13/1992 | CA2086943A1 Process for making as-cast ferritic spheroidal graphitic ductile iron |
| 01/07/1992 | US5078784 For molten iron, mixture of calcium carbide and silicon dioxide, reduces amount of calcium carbide residue in slag |
| 01/06/1992 | CA2044500A1 Desulfurization additive and method for introduction into hot metal |
| 12/25/1991 | CN1057297A Process and equipment for continuous smelting and continuous casting of cast |
| 12/18/1991 | CN1015114B Method for controlling and redressing graphite precipitation form during producing castings with cast-iron contg. additives for improved texture |
| 12/12/1991 | WO1991019012A1 A method of manufacturing compacted graphite cast iron |
| 12/04/1991 | CN1056715A Waste iron chip smelting direct casting piece technology |
| 11/21/1991 | EP0456641A1 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. |
| 11/06/1991 | CN1014614B Method of dephosphorylation of mn, fe for blast furnace |
| 10/30/1991 | CN1014531B Handling molten materials |
| 10/15/1991 | CA1290574C Method of making steel |
| 09/11/1991 | CN1013884B High-efficiency inoculant of chrome-manganese series white iron |
| 09/04/1991 | CN1054273A Modifying technology for helminth graphite cast iron |
| 09/04/1991 | CN1054267A Desulfurization process for cupola furnace |
| 08/27/1991 | WO1991013176A1 A method for controlling and regulating the primary nucleation of iron melts |
| 08/27/1991 | CA2076850A1 Method for controlling and regulating the primary nucleation of iron melts |
| 08/13/1991 | CA1287495C Magnesium calcium oxide composite |
| 07/31/1991 | EP0439244A1 Nodularising method |
| 07/24/1991 | EP0437769A1 Method and conveying plant for blowing pulverulent treating agents into iron and steel melts |
| 07/24/1991 | EP0437618A1 Method of dephosphorizing chromium-containing hot metal with lowered oxidation loss of chromium |
| 07/23/1991 | CA1286506C Method of desulfurizing iron |
| 07/17/1991 | CN1053027A Treatment vessel for treatment of molten metal melts |
| 07/10/1991 | CN1052900A Production of ingot iron with solid decarbonising pig iron adn remelting in electric furnace |
| 07/06/1991 | CA2033623A1 Vessel and method for the treatment of molten metal melts |
| 06/25/1991 | US5026030 Melting and holding furnace |
| 06/19/1991 | CN1012905B Preparing method of si-fe-bi instantaneous inoculant |
| 06/12/1991 | EP0431772A1 Agent for desulphurising molten metal |
| 06/12/1991 | CN1012839B Apparatus for heat preservation of melted metal |
| 06/11/1991 | US5022635 Removeable cover for a hot metal transfer car |
| 06/06/1991 | DE4002284A1 Abrasion resistant medium for desulphurising molten iron - consists of fine grain magnesium particles having several coatings |
| 06/04/1991 | US5021086 Iron desulfurization additive and method for introduction into hot metal |