| 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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| 09/01/1999 | CN1227265A Method for injection of oxygen in electric arc furnace |
| 08/31/1999 | US5946339 Electric arc furnace for producing liquid steel from a charge |
| 08/31/1999 | US5945063 Bottom blown gas blowing apparatus for molten metal ladle |
| 08/31/1999 | US5944870 Method of manufacturing pig iron or steel and cement clinker from slags |
| 08/31/1999 | US5944861 Process control; forming lightweight solid |
| 08/31/1999 | US5943970 Method and equipment for thermal destruction of wastes |
| 08/31/1999 | CA2175396C Method of installing a refractory lining |
| 08/31/1999 | CA2078904C Wall electrode for direct current electric metallurgical furnace |
| 08/26/1999 | WO1999042779A1 Seal for steel furnace emissions |
| 08/26/1999 | WO1999042625A1 Device for preheating charging stock, comprising replaceable stack wall sections |
| 08/26/1999 | DE19807616A1 Beschickungseinrichtung für Niederschachtöfen Loading device for low shaft |
| 08/26/1999 | DE19807590A1 Charge preheater for melting furnaces |
| 08/25/1999 | CN1226961A Metallurgical furnace unit |
| 08/19/1999 | WO1999041561A2 Charging device for low blast furnaces |
| 08/19/1999 | DE19821981A1 Slag retainer for the tapping channel of a converter |
| 08/19/1999 | CA2320184A1 Feeding device for low shaft furnaces |
| 08/18/1999 | EP0871785B1 Method and apparatus for after-burning the combustible components of the atmosphere in metallurgical smelting vessels |
| 08/18/1999 | EP0815266B1 Method of processing burnt rubbish residues |
| 08/18/1999 | EP0657710B1 Dc arc furnace |
| 08/17/1999 | US5939016 Apparatus and method for tapping a molten metal bath |
| 08/17/1999 | CA2229793A1 Seal for steel furnace emissions |
| 08/12/1999 | WO1999040229A1 Method for loading an electric oven with a powder material in the form of a filled hollow body |
| 08/11/1999 | EP0934432A1 METHOD OF DE-CHROMING AND/OR DEPLETING THE MgO CONTENT OF STEEL SLAG |
| 08/11/1999 | CN1044623C Method for smelting high-speed steel by using high-speed steel grindings and high-speed steel iron oxide |
| 08/04/1999 | EP0933436A1 Installation and process for melting of direct-reduced iron |
| 08/04/1999 | EP0617740B1 Extraction of mercury and mercury compounds from contaminated material and solutions |
| 08/04/1999 | CN1225140A A top injection lance |
| 08/04/1999 | CN1044492C Equipment and method for smelting steel |
| 08/03/1999 | US5933445 Cooling system for cathodes in direct current electric arc furnaces |
| 08/03/1999 | US5932169 Removal of slag and/or steel build-up from lances |
| 08/03/1999 | US5931985 Process and device for blowing oxygen-containing gas with and without solid material on a metal melt in a metallurgical vessel |
| 08/03/1999 | CA2030252C Method of and apparatus for continuously discharging molten metal and slag |
| 07/29/1999 | WO1999037822A1 Method and device to feed premixed gas to tuyeres of electric arc furnaces |
| 07/29/1999 | WO1999037422A1 Method for lining casting ladles and corresponding template |
| 07/29/1999 | DE19802207A1 Method and formwork for lining casting ladles |
| 07/29/1999 | CA2318150A1 Method and device to feed premixed gas to tuyeres of electric arc furnaces |
| 07/28/1999 | EP0931839A1 Process for manufacturing of steel ingots with high purity |
| 07/28/1999 | EP0833949B1 Nozzle with a welded lance head for melt agitation |
| 07/28/1999 | CN1224064A Apparatus and process system for preheating of steel scrap for melting metallurgical furnaces with concurrent flow of scrap and heating gases |
| 07/28/1999 | CN1044386C Method for intensifying reaction in metallurgical reaction vessels |
| 07/22/1999 | WO1999036581A1 Sustainable steelmaking by efficient direct reduction of iron oxide and solid waste minimisation |
| 07/22/1999 | DE19801295A1 Apparatus for controlling electric arc furnace used to melt and alloy metals, particularly steel |
| 07/21/1999 | EP0930476A1 Method for opening and closing a tapping hole of a metallurgical vessel and hammer device, especially for carrying out this method |
| 07/21/1999 | CN2329670Y Reinforced casted multi-hole central water-cooled oxygen lance blow head |
| 07/21/1999 | CN2329669Y Driving mechanism for lance changing car of converter oxygen blowing device |
| 07/21/1999 | CN1223694A Method for making steel in a liquid melt-fed electric furnace |
| 07/21/1999 | CN1223304A Method for utilizing fine dust produced by ultrahigh power electric furnace steel-making |
| 07/21/1999 | CN1044304C Improved power converter device for direct current power supply to an electric arc furnace |
| 07/14/1999 | EP0861336B1 Method for producing pre-treated molten metal castings |
| 07/13/1999 | US5923698 Method of operating an arc furnace, and an arc furnace |
| 07/13/1999 | US5922148 Ultra low sulfur superalloy castings and method of making |
| 07/08/1999 | WO1999034022A1 Refining method of molten iron and reduction smelting method for producing the molten iron |
| 07/08/1999 | CA2315031A1 Refining method of molten iron and smelting reduction method for producing molten iron |
| 07/07/1999 | EP0914478A4 A top injection lance |
| 07/06/1999 | US5919415 Steel and process for the manufacture of a steel component formed by cold plastic deformation |
| 07/01/1999 | WO1999032669A1 Converter installation having a divided sealing ring fitted between the converter and the flue gas chimney |
| 07/01/1999 | DE19758141A1 Konverteranlage Converter system |
| 07/01/1999 | CA2315376A1 Converter installation having a divided sealing ring fitted between the converter and the flue gas chimney |
| 06/30/1999 | EP0862719B1 Safety device for a vessel jacket |
| 06/30/1999 | EP0858515B1 Exchange device for a blow lance |
| 06/30/1999 | CN2326609Y Double-dumping type fire door of air-blown converter |
| 06/29/1999 | US5916827 Briquette includes carbon fines, and a powder of an element or oxide selected from iron, iron oxide, chromium, chromium oxide, nickel, nickel oxide in larger quantity being sufficient to suppress slippery nature of carbon |
| 06/29/1999 | CA2157390C Charge preheater |
| 06/24/1999 | WO1999031282A1 Cold drawn wire and method for the manufacturing of such wire |
| 06/23/1999 | EP0924009A1 Gas flushing device |
| 06/17/1999 | WO1999029915A1 Method and oxygen lance for injecting gases into a metallurgical tank |
| 06/17/1999 | WO1999029914A1 Feeding device for electrical shaft furnaces with an electrode-receiving central tube |
| 06/17/1999 | WO1999029913A1 Feed injection device and method for control of accretion |
| 06/17/1999 | WO1999029912A1 Coupling device for coupling a metallurgical kettle to one or more supply lines |
| 06/17/1999 | DE19755890A1 Beschickungseinrichtung für Schachtöfen Feeder for blast furnaces |
| 06/17/1999 | DE19755876A1 Verfahren und Blaslanze zum Einblasen von Gasen in metallurgische Gefäße A method and blowing lance for blowing gases into metallurgical vessels |
| 06/17/1999 | CA2312775A1 Method and oxygen lance for injecting gases into a metallurgical tank |
| 06/17/1999 | CA2312360A1 Feeding device for electrical shaft furnaces with an electrode-receiving central tube |
| 06/16/1999 | EP0922775A2 Method and installation for steel production |
| 06/16/1999 | EP0922774A1 System and method for minimizing slag carryover during the tapping of a BOF converter in the production of steel |
| 06/16/1999 | EP0922118A1 Exchange of an oxygen lance for liquid steel conversion |
| 06/16/1999 | EP0922117A1 Device for coupling a blow lance with a header |
| 06/16/1999 | CN1043681C Composite lance |
| 06/16/1999 | CN1043662C Method for controlling slug hull of rotative furnace |
| 06/16/1999 | CN1043661C Process for smelting titanium steel and steel obtained |
| 06/15/1999 | US5912916 Electric furnace with insulated electrodes and process for producing molten metals |
| 06/15/1999 | US5912403 Cold briquette of waste materials as an aggregate for smelting furnaces of an iron foundry and method of producing the same |
| 06/10/1999 | WO1999028727A1 Device for removing slag samples |
| 06/10/1999 | WO1999028513A1 Device and process system for preheating steel scrap |
| 06/10/1999 | WO1999028512A1 Method for reducing iron oxides and smelting iron and installations therefor |
| 06/10/1999 | DE19753184A1 Schmelzofenanlage Melting furnace |
| 06/10/1999 | DE19752743A1 Vorrichtung zur Entnahme von Schlackenproben Device for removal of slag samples |
| 06/10/1999 | CA2312035A1 Method for reducing iron oxides and smelting iron and installations therefor |
| 06/09/1999 | EP0921201A1 Reduced pressure smelting furnace |
| 06/09/1999 | EP0921200A1 Process and apparatus for reducing iron oxides and melting iron |
| 06/09/1999 | CN1218900A Direct current steel ladle refiner |
| 06/03/1999 | WO1999027141A1 Electric arc low-shaft smelting furnace with a central tube with telescopic electrodes and a sliding upper receptacle lid |
| 06/03/1999 | CA2311541A1 Electric arc low-shaft smelting furnace with a central tube with telescopic electrodes and a sliding upper receptacle lid |
| 06/02/1999 | EP0919634A1 Blow lance with gas cooled refractory casing |
| 06/02/1999 | CN1217954A Coherent jet injector lance |
| 05/27/1999 | WO1999025880A1 Method for the direct production of steel from iron-containing materials in a converter |
| 05/26/1999 | EP0918093A1 Coherent jet injector lance |
| 05/26/1999 | EP0842591B1 Bottom electrode for an arc furnace operated with direct current and process for operating the furnace |
| 05/26/1999 | EP0673442B1 Flow control device for the suppression of vortices |
| 05/26/1999 | CN1217754A Reduced pressure smelting furnace |