| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 11/08/2000 | EP1049811A2 Method and device to feed premixed gas to tuyeres of electric arc furnace |
| 11/07/2000 | CA2307293A1 Electric arc furnace for the production of steel and method of operating this furnace |
| 11/06/2000 | CA2307422A1 Direct reduction method and rotary hearth furnace |
| 11/02/2000 | WO2000065878A2 Method and device for supplying an electric arc melting furnace with current |
| 11/02/2000 | WO2000065102A1 Method and device for melting down finely particulate material containing metal, such as sponge iron |
| 11/02/2000 | DE19920049A1 Verfahren und Vorrichtung zur Stromversorgung eines über einen Lichtbogen betriebenen Schmelzaggregates Method and apparatus for supplying power to a powered via an arc melting unit |
| 11/02/2000 | CA2371094A1 Process and device for supplying current to an electric-arc melting unit |
| 11/02/2000 | CA2367596A1 Method and device for melting down finely particulate material containing metal, such as sponge iron |
| 10/25/2000 | CN2402987Y Electric single-phase DC forge furnace |
| 10/24/2000 | US6137823 Bi-metal panel for electric arc furnace |
| 10/24/2000 | US6137822 Direct current arc furnace and a method for melting or heating raw material or molten material |
| 10/24/2000 | US6136264 Melting apparatus and method for melting metal |
| 10/24/2000 | US6136068 Filtering dirtly air with improved efficiency by initiating a filter cleaning cycle for a particular filter when the pressure drop across that filter and fan speed match pre-set values for the pressure drop and fan speed |
| 10/24/2000 | US6136064 Supplying metal chips to charging tube, forming a column within tube extending through a box-shaped structure into a pool of molten metal; as chips at bottom of column melt, more are added to top, forcing bottom chips into molten metal |
| 10/24/2000 | CA2205529C Plasma furnace and a method of operating the same |
| 10/19/2000 | WO2000061823A1 Method and device for tapping molten metal from metallurgical vessels |
| 10/19/2000 | CA2366193A1 Method and device for tapping molten metal from metallurgical vessels |
| 10/18/2000 | EP1044285A1 Operation method of furnace equipment for magnesium alloys |
| 10/18/2000 | CN2401860Y AC electric arc furnace wiht self-consumed electrode |
| 10/18/2000 | CN1057658C Direct-arc electric furnace fed with controlled current method to feed direct-arc furnace with controlled current |
| 10/18/2000 | CN1057601C Treatment of container roof of heat materials |
| 10/18/2000 | CN1057600C Direct current arc furance and method for its operation |
| 10/18/2000 | CN1057594C Method controlling fuel-air ratios of multi-combustor systems |
| 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 |
| 10/12/2000 | DE19915575A1 Lower shaft arc oven has electrode connected to inner wall of coaxial shaft pipe via guide elements; top opening of pipe is replaceable part connected via annular plate to electrode |
| 10/11/2000 | EP1042088A1 Melting and pouring of specialty metals |
| 10/11/2000 | CN1269425A Multi-condensed jet-flow spray gun |
| 10/05/2000 | WO2000058680A1 A method and device for transferring metal |
| 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 |
| 10/04/2000 | CN2399691Y Arc furnace for smelting high melting point substances |
| 10/03/2000 | US6126716 Iron-base scrap preheating apparatus and method |
| 10/03/2000 | US6126440 Synthetic air assembly for oxy-fuel fired furnaces |
| 10/03/2000 | US6125918 Method for measurement of amount of liquid metal in casting furnace |
| 09/27/2000 | CN1268214A Method and apparatus for operation control of melting furnace |
| 09/27/2000 | CN1056920C Electricity-saving compensation technique for electric-arc furnaces |
| 09/26/2000 | US6125133 Lance/burner for molten metal furnace |
| 09/21/2000 | WO2000055558A1 Device for producing semi-finished products made of aluminium foam |
| 09/21/2000 | DE19747002C2 Verfahren zum Betreiben eines Magnesiumschmelzofens A method of operating a magnesium melting furnace |
| 09/20/2000 | EP1036204A1 Feeding device for electrical shaft furnaces with an electrode-receiving central tube |
| 09/20/2000 | EP1035932A1 Method and apparatus for melting non-ferrous metals, especially magnesium |
| 09/20/2000 | CN1056719C Furnace equipment |
| 09/19/2000 | US6122308 Electric resistance type melting furnace |
| 09/14/2000 | WO2000053987A1 Method for triggering casting in a light-arc furnace and measuring and sampling device |
| 09/13/2000 | CN1266173A Electric-arc furnace for producing electrically melted magnesite clinker |
| 09/06/2000 | EP1032714A1 Electric arc low-shaft smelting furnace with a central tube with telescopic electrodes and a sliding upper receptacle lid |
| 09/06/2000 | EP1032713A1 Method and apparatus for installation of refractory material into a metallurgical vessel |
| 09/05/2000 | US6113670 Twin chamber combustion furnace |
| 08/31/2000 | WO2000050969A2 Mass generation of individual virtual servers, virtual web sites and virtual web objects |
| 08/29/2000 | CA2208511C Arc furnace fume collection system |
| 08/23/2000 | EP0832305B1 Combined oxygen blowing/fuel burner lance assembly |
| 08/23/2000 | CN2393060Y Fuel-oil heating furnace |
| 08/22/2000 | US6108363 Oxygen injector |
| 08/16/2000 | EP1027462A1 Method and device for controlling the formation of foamed slag in an arc furnace |
| 08/15/2000 | US6104743 Electric arc furnace cooling apparatus |
| 08/10/2000 | WO2000046561A1 Water-cooling panel for furnace wall and furnace cover of arc furnace |
| 08/09/2000 | EP1025267A1 Method for smelting fine grained direct reduced iron in an electric arc furnace |
| 08/09/2000 | EP0739989B1 Process for melting metal materials |
| 08/08/2000 | US6099301 Feed apparatus for batch preparation feed mixture for feeding into smelting furnace |
| 08/03/2000 | WO2000044948A1 Aluminum scrap melting process and system |
| 08/03/2000 | DE19846100C2 Gleichstromlichtbogenofen zur Herstellung von Stahl sowie Verfahren hierzu DC arc furnace for producing steel and method therefor |
| 07/27/2000 | WO2000043720A1 Aspiration system to reduce the losses of fine materials and powders from an electric arc furnace |
| 07/27/2000 | WO2000043719A1 System to plug the delta area of the roof of an electric arc furnace |
| 07/26/2000 | CN2389287Y Gas heating furnace |
| 07/26/2000 | CN1054960C Electric melting device |
| 07/19/2000 | EP1019664A1 Cooling device with panels for electric arc furnace |
| 07/19/2000 | EP1019211A1 Method of fluxless melting of magnesium |
| 07/18/2000 | CA2029059C Wide range oxy-fuel burner and furnace operation |
| 07/13/2000 | WO2000040913A1 Furnace for melting solid waste with cooling water boxes |
| 07/12/2000 | EP0731851B1 Method of processing solid residues from waste-incineration plants and a device for carrying out the method |
| 07/11/2000 | US6086361 Melt treatment apparatus |
| 07/06/2000 | WO2000039514A1 Method and device for melting rare earth magnet scrap and primary molten alloy of rare earth magnet |
| 07/05/2000 | CN1054255C Complete DC arc furnace equipment |
| 07/04/2000 | US6084902 Electric arc furnace having monolithic water-cooled roof |
| 07/04/2000 | US6083625 Curved graphite furnace elements |
| 07/04/2000 | US6083296 Method of producing metals and metal alloys |
| 06/28/2000 | CN2385288Y Water seal device of steel smelting furnace lid |
| 06/28/2000 | CN1258345A Method for determination of tip position of consumable electrodes used in electric smelting furnaces |
| 06/22/2000 | WO2000036155A1 Furnace for the direct reduction of iron oxides |
| 06/21/2000 | EP1009964A1 Heat regeneration for oxy-fuel fired furnaces |
| 06/14/2000 | CN1053473C Method and apparatus for producing metal and metal alloy |
| 06/13/2000 | US6074455 Aluminum scrap melting process and apparatus |
| 06/13/2000 | CA2164388C Melt shop layout |
| 06/08/2000 | WO2000017590A9 Apparatus and method for tapping a furnace |
| 06/07/2000 | EP1006201A1 Method of judging slag forming state in electric furnace steel production and method of operating electric furnace |
| 05/30/2000 | US6068676 Stain-resistant, acid-resistant and heat-resistant high-grade steels of high purity and low gas content produced by melting metal charge in a crucible of specific volume, alloying, refining, chemically reducing and controlling process gases |
| 05/24/2000 | CN2379484Y Annealing hearth |
| 05/18/2000 | WO2000027568A1 Rotary socket taphole assembly |
| 05/16/2000 | US6064687 Mobile furnace facility |
| 05/10/2000 | EP0998588A1 Inert tank for treating oxidable liquid metal |
| 05/10/2000 | EP0946850B1 Melting apparatus and method for melting metal |
| 05/09/2000 | US6060015 Metallurgical furnace unit |
| 05/09/2000 | CA2059062C Arc furnace electrode control |
| 05/04/2000 | WO2000025078A1 Melting/retaining furnace for aluminum ingot |
| 05/03/2000 | EP0996844A1 Method for determination of the tip position of consumable electrodes used in electric smelting furnaces |
| 05/03/2000 | CN2376476Y Coal combustion industrial furnace for thermal method calcium obtaining |
| 04/26/2000 | CN1251618A Electric furnace with insulated electrode and process for producing molten metals |
| 04/25/2000 | US6053728 Furnace |
| 04/20/2000 | WO2000022176A1 A process and an apparatus for producing metals and metal alloys |