| 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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| 11/30/2000 | WO2000071760A1 Combined forged and cast lance tip assembly |
| 11/29/2000 | EP1055092A1 Seal for steel furnace emissions |
| 11/29/2000 | EP1055090A2 Charging device for low blast furnaces |
| 11/29/2000 | CN1274759A Composite spray gun for vacuum air-removing tank and its using method |
| 11/28/2000 | US6152984 Integrated direct reduction iron system |
| 11/23/2000 | WO2000070285A1 Electric arc furnace for continuous charging |
| 11/23/2000 | WO2000070102A1 Device and method for spraying natural gas and/or oxygen |
| 11/23/2000 | WO2000070101A1 Method and installation with smelting and reduction cyclone and a coupled lower furnace for utilising residual material containing iron and heavy metals and optionally iron ore |
| 11/23/2000 | DE19922509A1 Device for spraying fuel, preferably natural gas, and/or oxygen into an arc furnace has feed pipes for the natural gas and oxygen with various chambers and supports |
| 11/23/2000 | CA2372809A1 Method and installation with smelting and reduction cyclone and a coupled lower furnace for utilising residual material containing iron and heavy metals and optionally iron ore |
| 11/22/2000 | EP1054069A2 Multi-function lance for a vacuum degassing chamber and a method of using the same |
| 11/22/2000 | EP1054068A2 Method for closing and opening of a tap hole of a tiltable metallurgical vessel |
| 11/22/2000 | EP1054067A2 Method for closing and opening of a tap hole of a metallurgical vessel |
| 11/22/2000 | CN2407014Y Temperature sampler for converter |
| 11/22/2000 | CN2406769Y Special chuck for machining oxygen lances of converter |
| 11/22/2000 | CN1274011A Spraygun for splashing slags to protect converter and its splashing method |
| 11/21/2000 | US6149858 Apparatus for producing steel utilizing an electrical steel making furnace vessel |
| 11/16/2000 | WO2000068442A1 Method of decarburisation and dephosphorisation of a molten metal |
| 11/16/2000 | DE19920209A1 Process for recovering dust produced from steel making in the converter comprises recycling coarse dust directly to the converter and pneumatically blowing through the run-off hole into the empty converter |
| 11/16/2000 | CA2371652A1 Method of decarburisation and dephosphorisation of a molten metal |
| 11/15/2000 | EP1051525A1 Method for loading an electric oven with a powder material in the form of a filled hollow body |
| 11/14/2000 | US6146440 Process for the direct production of cast iron from iron bearing ore, and an apparatus suitable to carry out said process |
| 11/14/2000 | CA2182669C Slag control shape release apparatus for molten metal vessels |
| 11/08/2000 | EP1050590A1 Electric arc furnace for the production of steel and method for operating it |
| 11/08/2000 | EP1049811A2 Method and device to feed premixed gas to tuyeres of electric arc furnace |
| 11/08/2000 | EP1049550A1 Method for lining casting ladles and corresponding template |
| 11/07/2000 | US6143050 Modifying slag for smelting steel in electric arc furnaces |
| 11/07/2000 | US6142765 Process for burning fuel |
| 11/07/2000 | CA2307293A1 Electric arc furnace for the production of steel and method of operating this furnace |
| 11/02/2000 | WO2000065109A1 Improved method and device for degasing and separation of inclusions in a liquid metal bath by injection of gas bubbles |
| 11/02/2000 | WO2000065108A1 Method for processing steel slags |
| 11/02/2000 | WO2000065102A1 Method and device for melting down finely particulate material containing metal, such as sponge iron |
| 11/02/2000 | WO2000065101A1 Method for automatically controlling hydraulic opener |
| 11/02/2000 | EP1047797A1 Method for recycling iron bearing sludges in a steelmaking operation |
| 11/02/2000 | CA2372065A1 Improved method and device for degasing and separation of inclusions in a liquid metal bath by injection of gas bubbles |
| 11/02/2000 | CA2367596A1 Method and device for melting down finely particulate material containing metal, such as sponge iron |
| 11/01/2000 | CN2404000Y Conical spray gun |
| 10/31/2000 | US6139792 Exchange of an oxygen lance for liquid steel conversion |
| 10/31/2000 | US6139310 System for producing a single coherent jet |
| 10/25/2000 | EP1046721A1 Method of consolidating powdery alloying additives for steelmaking |
| 10/25/2000 | EP1046720A1 Apparatus to determine and control the carbon content of steel in a BOF vessel |
| 10/25/2000 | CN1057718C Slide gate valve having a cementless joint between the valve and a metallurgical vessel |
| 10/25/2000 | CN1057717C Slide gate valve having replaceable refractory valve gate assembly and method of replacing the same |
| 10/24/2000 | US6136066 Method of recycling iron-bearing waste material back into a basic oxygen furnace |
| 10/24/2000 | US6136059 Feeding said dusts to a coreless induction furnace, having a reduction section partially filled with a turbulent bath of molten metal or alloy to reduce zinc and iron oxides in dusts, forming zinc vapors above bath and oxidizing zinc in vapors |
| 10/19/2000 | WO2000061823A1 Method and device for tapping molten metal from metallurgical vessels |
| 10/19/2000 | WO2000061269A1 Coupling for a molten metal processing system |
| 10/19/2000 | CA2366193A1 Method and device for tapping molten metal from metallurgical vessels |
| 10/18/2000 | CN2401566Y Three-point hanged converter |
| 10/18/2000 | CN1057600C Direct current arc furance and method for its operation |
| 10/17/2000 | US6132206 Water cooled finger for pre-heater of furnace top |
| 10/17/2000 | CA2035886C Method for dephosphorization of chromium-containing molten pig iron with reduced oxidation loss of chromium |
| 10/12/2000 | WO2000060297A1 Metallurgical vessel comprising a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel |
| 10/12/2000 | DE19916232A1 Verfahren und Vorrichtung zum Abstechen von Metallschmelzen aus metallurgischen Schmelzgefäßen Method and apparatus for tapping of molten metals from metallurgical melting vessels |
| 10/11/2000 | EP1042516A1 Cold drawn wire and method for the manufacturing of such wire |
| 10/11/2000 | EP1042515A1 Converter installation having a divided sealing ring fitted between the converter and the flue gas chimney |
| 10/11/2000 | CN2400454Y High-temp. coating oxygen-lance for smelting steel |
| 10/11/2000 | CN2400453Y Combined extrusion centre water-cooling oxygen gun spray head |
| 10/11/2000 | CN1269425A Multi-condensed jet-flow spray gun |
| 10/10/2000 | US6129889 Gas-flushing base for metallurgical vessels |
| 10/10/2000 | US6129888 System and method for minimizing slag carryover during the taping of a BOF converter in the production of steel |
| 10/10/2000 | US6129791 Preventing austenite grains form growing |
| 10/10/2000 | US6129778 Dividing the gas at the first higher pressure into at least two parts, storing one parts at a pressure between the first pressure and the second low pressure; supplying a steel plant that consumes oxygen at two pressures |
| 10/10/2000 | US6129776 Controlling gas utilization ratio inside the furnace by adjusting the charge height of the charge and the height of the coke bed; efficiently reducing and melting the iron ore at a low fuel ratio |
| 10/05/2000 | DE19919378A1 Metallurgical vessel, e.g. a tilting arc furnace, has a heated tapping siphon tube with an overflow edge located above the tube inlet upper edge in the vessel operating position |
| 10/04/2000 | EP1041341A1 Multiple coherent jet lance |
| 10/03/2000 | US6126716 Iron-base scrap preheating apparatus and method |
| 10/03/2000 | US6126714 Revert comprising mixture of steelmaking sludge and slag of low moisture content, given mesh size; blend prepared from hot slag having temperature below the molten liquid state and wet sludge; for recycling back to steelmaking |
| 09/28/2000 | DE19913335A1 Slag coating of a converter lining, especially of a copper refining converter, is carried out by applying slag at just above its melting point onto a lining region at just below the slag melting point |
| 09/26/2000 | US6125133 Lance/burner for molten metal furnace |
| 09/21/2000 | WO2000055380A1 Method and device for tapping a molten bath |
| 09/21/2000 | DE19911607A1 Verfahren und Vorrichtung zum Abstechen einer Metallschmelze Method and apparatus for tapping a molten metal |
| 09/21/2000 | DE19910603A1 Filter dusts, especially from melting of electroslag remelting and steelworks slags and submerged arc welding powders, are treated by melting prior to disposal |
| 09/20/2000 | EP1036776A1 Unburned carbon-containing refractory material and vessel for molten metal |
| 09/20/2000 | EP1036205A1 Method and oxygen lance for injecting gases into a metallurgical tank |
| 09/20/2000 | EP1036204A1 Feeding device for electrical shaft furnaces with an electrode-receiving central tube |
| 09/20/2000 | CN2397125Y Hanging scum rod inserting device |
| 09/19/2000 | CA2266286A1 A process for controlling the stirring energy delivered by a gas flowing through a liquid and a process for detection and control of arc flare in electric arc heating furnaces |
| 09/14/2000 | WO2000053539A1 Method for treating stainless steel refining slag |
| 09/14/2000 | CA2331182A1 Method for the treatment of slag resulting from the refining of stainless steel |
| 09/13/2000 | EP1034420A1 Device for removing slag samples |
| 09/13/2000 | EP1034313A1 Device and process system for preheating steel scrap |
| 09/13/2000 | EP1034312A1 Method for reducing iron oxides and smelting iron and installations therefor |
| 09/13/2000 | CN1056414C Enhanced oxygen blowing convertor steelmaking method |
| 09/12/2000 | US6116079 Liquid copper hydrogen sample probe |
| 09/07/2000 | DE19910398A1 Converter and/or electric furnace production of low sulfur content steel comprises adding recycled and/or fresh secondary refining slag during and/or after tapping into a ladle |
| 09/06/2000 | EP1032714A1 Electric arc low-shaft smelting furnace with a central tube with telescopic electrodes and a sliding upper receptacle lid |
| 09/05/2000 | US6113669 Method and apparatus for process and quality control in the production of metal |
| 08/31/2000 | WO2000050863A1 Fiber-optic sensor and method to determine carbon content of molten steel in a basic oxygen furnace |
| 08/31/2000 | WO2000050652A1 Treatment of metal sulphide concentrates by roasting and arc furnace smelt reduction |
| 08/31/2000 | WO2000050648A1 Continuous charge preheating, melting, refining and casting |
| 08/31/2000 | WO2000036161A3 Method for feeding fines in a light-arc furnace |
| 08/30/2000 | CN2394101Y Carbon oxygen nozzle |
| 08/30/2000 | CN1264745A Final slag modifier for smelting steel in converter |
| 08/29/2000 | US6110415 Device for opening furnace tap holes |
| 08/29/2000 | US6110300 Tool of martensitic stainless steel alloy having high oxidation resistance, high corrosion resistance, good hot workability, high strength, high wear resistance |
| 08/24/2000 | WO2000049185A1 Taphole assembly for a molten metal manufacturing furnace and method of forming the same |
| 08/23/2000 | EP1029092A1 Method for producing directly-reduced iron, liquid pig iron and steel |
| 08/23/2000 | EP1029089A1 Method for continuous smelting of solid metal products |
| 08/23/2000 | EP0832305B1 Combined oxygen blowing/fuel burner lance assembly |