| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 04/18/2000 | CA2135204C Plasma furnace and a method of operating the same |
| 04/13/2000 | WO2000020650A1 Direct-current arc furnace comprising a centric charging shaft for producing steel and a method therefor |
| 04/13/2000 | DE19846100A1 Gleichstromlichtbogenofen zur Herstellung von Stahl sowie Verfahren hierzu DC arc furnace for producing steel and method therefor |
| 04/13/2000 | DE19815457C2 Elektronenstrahlschmelzofen zum Umschmelzen von stückigem Gut Electron beam furnace for remelting lumpy |
| 04/13/2000 | CA2346770A1 Direct-current arc furnace comprising a centric charging shaft for producing steel and a method therefor |
| 04/12/2000 | CN2373753Y Ball-path type tunnel furnace |
| 04/12/2000 | CN1051368C Bottom electrode of DE arc furnace |
| 04/11/2000 | US6049560 Inductively heated side drain for high temperature molten materials |
| 04/11/2000 | US6049067 An improved crucible for containing a body of molten aluminum and maintaining the molten aluminum at a predetermined temperature for transportation by heating the liner of ceramic, inert to aluminum, transferring the heat to aluminum |
| 04/06/2000 | DE19900123A1 Processing apparatus of waste gas from smelter |
| 04/05/2000 | EP0760016B1 Scrap metal gravity feed method and apparatus |
| 04/05/2000 | CN1051149C DC electric arc furnace |
| 04/04/2000 | US6045357 Continuous sintering plant integrated with glove box for maintenance use |
| 03/30/2000 | WO2000017590A1 Apparatus and method for tapping a furnace |
| 03/29/2000 | EP0893414B1 Method and apparatus for determining and regulating the oxygen contents in the atmosphere above the glass in a feeder channel |
| 03/29/2000 | EP0830182B1 Vaporizable material injection into molten bath |
| 03/29/2000 | EP0691068B1 Furnace equipment |
| 03/22/2000 | EP0963449A4 Electric furnace with insulated electrodes and process for producing molten metals |
| 03/16/2000 | WO2000014285A1 A direct smelting process |
| 03/15/2000 | EP0985879A1 Method and apparatus for operation control of melting furnace |
| 03/15/2000 | CN1050420C Hot-treatment heating equipment with both vaccum and air layers for heat insulation |
| 03/14/2000 | US6038246 Method and apparatus for operating a furnace |
| 03/14/2000 | US6038245 Process for melting a charge in an electrical arc furnace |
| 03/14/2000 | US6036486 Heat regeneration for oxy-fuel fired furnaces |
| 03/09/2000 | WO2000012766A1 A process and an apparatus for producing metals and metal alloys |
| 03/09/2000 | DE19827299C1 Verfahren und Vorrichtung zur Stahlerzeugung in einem Ofengefäß Method and apparatus for producing steel in a furnace vessel |
| 03/07/2000 | CA2150881C Coolable lining for a high-temperature gasification reactor |
| 03/02/2000 | WO2000011226A1 Söderberg-type composite electrode for arc smelting furnace |
| 03/01/2000 | EP0982407A1 Process for melting inorganic substances |
| 03/01/2000 | CN1049974C Briquette kiln for firing procelains |
| 02/29/2000 | US6030431 Method for an improved energy input into a scrap bulk |
| 02/24/2000 | WO2000009963A1 Integral spray cooled furnace roof and fume elbow |
| 02/24/2000 | WO2000009962A1 Smelting unit with charge pre-heater |
| 02/24/2000 | DE19836844A1 Verfahren zum Bestimmen der Höhe des Badspiegels eines Elektrolichtbogenofens A method for determining the height of the bath level of an electric arc furnace |
| 02/23/2000 | EP0981034A1 Process to determine the melt level in an electric arc furnace |
| 02/23/2000 | CN2365623Y Automatic regulator adapted to arc furnace current |
| 02/23/2000 | CN1245557A Arc furnace protection device |
| 02/22/2000 | CA2032652C Industrial furnace with improved heat transfer |
| 02/16/2000 | CN1244515A Zirconite ball making technology |
| 02/16/2000 | CN1244494A Yellow phosphorus furnace building process utilizing cold mashed paste and yellow phosphorus furnace |
| 02/15/2000 | US6026113 Method for the electromagnetic stirring of the liquid metal in electric arc furnaces and relative device |
| 01/27/2000 | WO2000004197A1 Induction furnace for a metal reduction and melting process |
| 01/19/2000 | CN2359645Y Smoke prevention and dust control type hand burning furnace |
| 01/19/2000 | CN1048544C Method and apparatus for oxidizing pulverous fuel with two gasses having different oxygen contents |
| 01/18/2000 | US6015963 Plasma arc furnace with improved replaceable electrodes |
| 01/13/2000 | WO2000001996A1 Method for estimating electrode tip position |
| 01/13/2000 | WO2000001854A1 Direct smelting vessel and direct smelting process |
| 01/13/2000 | WO1999051065A3 Bottom for a metallurgical vessel with a direct current electric arc device |
| 01/12/2000 | EP0970339A1 Method to load scrap for electric arc furnace and relative system |
| 01/12/2000 | EP0970338A1 System to load pre-heated scrap by means of baskets for electric arc furnace |
| 01/12/2000 | EP0970255A1 Cooled basket for steel plants |
| 01/12/2000 | EP0757666B1 Metallurgical furnace vacuum slag removal |
| 01/12/2000 | CN1048326C Compound type air supply device for electric arc furnace bottom blowing |
| 01/11/2000 | US6014402 Electric resistance melting furnace |
| 01/05/2000 | EP0671595B1 Electric arc fusion furnace with controlled oxygen blast |
| 01/05/2000 | DE19927447A1 Plant pretreating granular or lump material prior to smelting in electric furnace |
| 01/05/2000 | CN1048141C Bottom electrode for dc arc furnace |
| 12/29/1999 | CN1047804C Aluminum melting method with reduced dross formation |
| 12/28/1999 | US6006821 Method and apparatus for melting and pouring specialty metals |
| 12/22/1999 | EP0965650A1 Furnace vessel and method of producing steel |
| 12/22/1999 | CN1239577A Continuous sintering plant integrated with glove box for maintenance use |
| 12/21/1999 | US6004504 Method and apparatus for controlling bath level and measurement of bath characteristics |
| 12/21/1999 | US6003879 Seal for steel furnace emissions |
| 12/16/1999 | WO1999064637A1 Melting method and device using orientable multipurpose lance/burner units |
| 12/16/1999 | CA2334392A1 Melting method and device using orientable multipurpose lance/burner units |
| 12/15/1999 | EP0964065A1 Double lance burner/injection device with orientable lance units and melting method using same |
| 12/15/1999 | EP0963449A1 Electric furnace with insulated electrodes and process for producing molten metals |
| 12/15/1999 | EP0825908B1 Method for measurement of amount of liquid metal in casting furnace |
| 12/15/1999 | CN1238832A Panelized spray-cooled furnace roof |
| 12/09/1999 | DE19824573A1 Verfahren zum Schmelzen von Metallen A method for melting metals |
| 12/08/1999 | EP0962540A1 Process for thek non-oxidizing smelting of metals in a furnace with oxy-fuel burner |
| 12/08/1999 | EP0961839A1 Method and device for positioning the mouth of a consumable lance |
| 12/08/1999 | EP0784708B1 Process and device for making liquid iron by non-electric and electric smelting |
| 12/08/1999 | EP0759797B1 Apparatus and method for vitrification of hazardous waste |
| 12/07/1999 | US5999558 Integral spray cooled furnace roof and fume elbow |
| 12/07/1999 | US5999557 Steel making bath control |
| 12/07/1999 | US5999556 Electric arc furnace that uses post combustion |
| 12/07/1999 | US5997801 Metal chip reclamation system |
| 12/02/1999 | WO1999061857A1 Tiltable light-arc furnace |
| 12/02/1999 | DE19823226A1 Kippbarer Lichtbogenofen Tiltable arc furnace |
| 12/01/1999 | EP0961293A1 Continuous sintering plant integrated with glove box for maintenance use |
| 12/01/1999 | EP0961093A1 Electric arc furnace cooling apparatus |
| 12/01/1999 | EP0960862A1 A level control apparatus for a liquid-state material in smelting furnaces and the like, in particular in furnaces for processing rock wool |
| 11/30/1999 | US5993203 Heat transfer enhancements for increasing fuel efficiency in high temperature furnaces |
| 11/24/1999 | EP0958481A1 Smelting installation with an electric-arc furnace |
| 11/24/1999 | EP0958478A1 Panelized spray-cooled furnace roof |
| 11/24/1999 | CN1236398A Installation and method for producing molten metal |
| 11/24/1999 | CN1236088A Electric furnace cooling apparatus |
| 11/24/1999 | CN1046765C Oxygen blowing lance for electric furnace |
| 11/23/1999 | US5989019 Direct reduction method and rotary hearth furnace |
| 11/18/1999 | WO1999058730A1 Method for operating an electric arc furnace to build up and maintain foamed slag |
| 11/18/1999 | WO1999058729A1 Electric arc furnace |
| 11/17/1999 | CN1046554C Iron smelting process and apparatus by multiple zone smelting process |
| 11/16/1999 | US5987051 Arc furnace fume collection system and method |
| 11/11/1999 | DE19820612A1 Operating an electric arc furnace to build up and maintain foam slag |
| 11/11/1999 | DE19820589A1 Electric arc furnace with lances for introduction of solids and/or gases |
| 11/10/1999 | EP0833950B1 Method for an improved energy input into a scrap bulk |
| 11/10/1999 | CN1234484A Combustion method realized through alone jetting fuel and oxidant |
| 11/09/1999 | US5979191 Method and apparatus for melting of glass batch materials |
| 11/04/1999 | WO1999041561A3 Charging device for low blast furnaces |