| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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| 09/22/1993 | CN1022191C Process of and apparatus for post combustion |
| 09/21/1993 | US5246485 Method and apparatus for preventing fume production when transporting molten metal from a metallurgical vessel to casting vessels |
| 09/21/1993 | US5246482 Molten metal producing and refining method |
| 09/14/1993 | US5244488 Direct smelting process with a thermal plasma |
| 09/02/1993 | WO1993017132A1 Process for improving metal production in iron and steelmaking processes |
| 08/31/1993 | US5240496 Pretreatment of chromium-bearing metal scrap to remove chromium |
| 08/25/1993 | CN1075542A Anode for a direct-current electric arc furnace |
| 08/24/1993 | US5238484 Plant for the production of molten metals and method |
| 08/18/1993 | EP0555300A1 Metallurgical lance |
| 08/18/1993 | EP0309583B1 Method of melting and refining metals, and an apparatus for cooling electrodes used therefor |
| 08/12/1993 | DE4302343A1 Lining system of bricks of two basic sizes - for lining domed bottom e.g. of steel converter |
| 08/11/1993 | EP0414759B1 Wear-resistant electrode for direct current arc furnaces |
| 08/11/1993 | EP0396717B1 Automatic lance-exchanging device |
| 08/11/1993 | CN2139939Y Double-burn sprinkle head with centre cold-water end |
| 08/11/1993 | CA2061202A1 High-production rotary furnace steelmaking |
| 08/10/1993 | US5234200 Method and arrangement for preventing crusts from agglomeration in a metallurgical vessel |
| 08/10/1993 | CA1321074C Process for continuous melting of scrap metal in a dc electric furnace, and electric furnace for implementing that process |
| 08/05/1993 | WO1993014862A1 Treatment of gases discharged from metallurgical furnaces |
| 08/04/1993 | EP0553432A1 Installation for supplying media to a blowing lance |
| 08/04/1993 | CN1074944A Apparatus for supplying media to a blowing lance |
| 08/04/1993 | CN1074943A Blowing lance suspension with integrated medium supply |
| 08/04/1993 | CN1021741C Improved process of controlling slag in top-blowing steelmaking converter |
| 08/03/1993 | US5233625 Metallurgical vessel with metallic electrode having readily replaceable wear part |
| 07/28/1993 | EP0552440A2 Blowing lances suspension with integrated material supply |
| 07/27/1993 | CA1320645C Process for melting scrap metal and electric furnace for implementing the process |
| 07/25/1993 | CA2086775A1 Apparatus for supplying media to a blowing lance |
| 07/21/1993 | CN1074485A Tuyere arrangement for the introtion of agents into a molten bath and method of operating such a tuyere arrangement |
| 07/20/1993 | US5229964 Read circuit for large-scale dynamic random access memory |
| 07/20/1993 | CA1320526C Process for increasing the energy input in electric arc furnaces |
| 07/15/1993 | DE4240666C1 Installation for holding and supplying blow lance for metallurgical vessel - with automatic positioning and clamping of lance in carrier structure |
| 07/14/1993 | CN1074244A Method of decarburizing molten metal in the refining of steel using neural networks |
| 07/13/1993 | US5227118 Top blowing refining lance |
| 07/13/1993 | US5226545 Extraction of mercury and mercury compounds from contaminated material and solutions |
| 07/08/1993 | WO1993013228A1 Process and device for melting scrap |
| 07/07/1993 | EP0549798A1 Method and device for obtaining steel in a liquid bath |
| 07/06/1993 | US5225145 Apparatus for opening and closing a taphole of a metallurgical furnace |
| 06/30/1993 | EP0549551A1 Fumes-exhausting hood |
| 06/30/1993 | EP0548117A1 Device for inserting and removing stopper bricks for metallurgical vessels. |
| 06/29/1993 | CA1319509C Extendable lance |
| 06/23/1993 | EP0548042A1 Method of producing metal melts, in particular steel melts |
| 06/23/1993 | EP0548041A2 Electric furnace arrangement for producing steel |
| 06/23/1993 | EP0547447A1 Heath tuyere of electric ARC furnaces |
| 06/23/1993 | EP0378672B1 Cold hearth refining apparatus and method |
| 06/22/1993 | US5221512 Apparatus for preheating and removing organic materials from scrap iron |
| 06/17/1993 | CA2084138A1 Method of producing metal melts and an electric arc furnace therefor |
| 06/13/1993 | WO1993012396A1 Melting apparatus and method |
| 06/13/1993 | CA2101529A1 Melting apparatus and method |
| 06/10/1993 | WO1993011398A1 Furnace systems and charger mechanisms for furnaces |
| 06/09/1993 | EP0545889A1 Process for melting scrap |
| 06/09/1993 | EP0545884A2 Steel and process and installation for its preparation |
| 06/09/1993 | EP0545766A1 Ferruginous coolant producing method for steel making in converters and so produced coolant |
| 06/09/1993 | EP0545379A1 Method of decarburizing molten metal in the refining of steel using neural networks |
| 06/09/1993 | EP0544967A1 Process for suppression of dust and fumes during electric steel production |
| 06/08/1993 | US5218617 Apparatus for feeding iron-bearing materials to metallurgical furnaces |
| 06/08/1993 | US5217674 Drive for automatic lance changing devices |
| 06/08/1993 | CA2084740A1 Tuyere for installation in hearth of electric arc furnaces |
| 06/02/1993 | EP0544044A1 Process and installation for melting a charge in a furnace |
| 05/27/1993 | WO1993009898A1 Suppression of fume in metal pouring |
| 05/27/1993 | DE4138118A1 Melting-down and refining unit for steel - consists of two adjacent furnaces with lid mechanisms operated simultaneously, for melting down and refining-overheating the melt |
| 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 |
| 05/26/1993 | EP0404815B1 Method and installation for recovering energy in metallurgical processes |
| 05/26/1993 | CN1072459A Electric furnace arrangement for producing steel |
| 05/26/1993 | CN1072458A Unidirectional top oxygen blown open-hearth furnace |
| 05/25/1993 | CA1318341C Electric furnace arrangement |
| 05/25/1993 | CA1318340C Electric furnace arrangement |
| 05/25/1993 | CA1318134C Method for transferring heat to molten metal, and apparatus therefor |
| 05/19/1993 | EP0542330A1 Porous granulated steel slag composition and use of such a steel slag composition as aggregate or cement replacement in building materials, road building materials and embankment materials |
| 05/19/1993 | CN1072212A Method of accelerated melting steel scrap by steel-smelting electric-arc furnace |
| 05/18/1993 | US5212738 Scanning laser measurement system |
| 05/18/1993 | US5211743 Treatment of a melt with a gas and means therefor |
| 05/18/1993 | US5211555 Melting apparatus and method |
| 05/13/1993 | DE4136552A1 Dueseneinrichtung zum einleiten von medien in eine schmelze und verfahren zum betrieb dieser dueseneinrichtung Dueseneinrichtung to initiate of media in a melt and procedures for operation of this dueseneinrichtung |
| 05/12/1993 | EP0541044A2 DC arc furnace |
| 05/12/1993 | EP0540832A1 Anode for a direct-current arc furnace |
| 05/12/1993 | EP0377578B1 Consumable lance |
| 05/12/1993 | CN2132751Y Water tank of coverter mouth |
| 05/12/1993 | CN1071958A Blowing lange |
| 05/11/1993 | US5209774 Discharged from a chlor-alkali plant, leaching with acid and sodium hypochlorite, thickening |
| 05/11/1993 | US5209571 Device for measuring the temperature of a molten metal |
| 05/07/1993 | WO1993009255A1 Nozzle assembly for introducing fluids into a melt, and a method of operating the nozzle |
| 05/05/1993 | EP0539683A1 Blowing lance |
| 05/05/1993 | CN1071708A Directly alloying process in vanadium slag furnace |
| 05/05/1993 | CN1071703A High-effective foam slag submerged-arc steel melting method of electric arc furnace |
| 05/04/1993 | CA1317105C Device for coupling a metallurgical ladle to a gas supply |
| 05/01/1993 | CA2077473A1 Blowing lance |
| 04/28/1993 | EP0539352A1 Method of disposing of organic and inorganic substances |
| 04/28/1993 | CN1071462A Drive for automatic lance change devices |
| 04/27/1993 | CA1316720C Device and technique for in-process sampling and analysis of molten metals and other liquids presenting harsh sampling conditions |
| 04/25/1993 | CA2081257A1 Method of disposing of organic and inorganic substances and a plant for carrying out the method |
| 04/24/1993 | CA2080850A1 Porous granulated steel slag composition and use of such a steel slag composition as aggregate or cement replacement in building materials, road building materials and embankment materials |
| 04/21/1993 | EP0537536A1 Device for automatic coupling a metallurgical ladle to conduits |
| 04/20/1993 | US5204873 DC electric arc melting apparatus |
| 04/20/1993 | US5203909 Method and apparatus for slag free casting |
| 04/20/1993 | CA1316345C Vortex inhibitor for molten metal discharge |
| 04/15/1993 | DE4228789A1 Drive for automatic lance change mechanism - with individually housed reduction gear units for each draw bar |
| 04/15/1993 | CA2080303A1 Drive for automatic lance change devices |
| 04/13/1993 | US5202079 Means and method for determining the degree of wear of a gas injection device |
| 04/13/1993 | US5201941 Process for introducing additive substances which are capable of flow into a metallurgical vessel and a vessel for that process |
| 04/13/1993 | CA1315982C Tuyere for metallurgical vessels |
| 04/13/1993 | CA1315978C Continuous preheat charging system and method |