| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 06/22/1999 | US5914885 Thermal treatment apparatus and method |
| 06/17/1999 | WO1999029914A1 Feeding device for electrical shaft furnaces with an electrode-receiving central tube |
| 06/17/1999 | DE19755890A1 Beschickungseinrichtung für Schachtöfen Feeder for blast furnaces |
| 06/17/1999 | CA2312360A1 Feeding device for electrical shaft furnaces with an electrode-receiving central tube |
| 06/16/1999 | EP0923273A1 Mobile furnace facility |
| 06/16/1999 | CN2324514Y Smelting furnance |
| 06/15/1999 | US5912916 Electric furnace with insulated electrodes and process for producing molten metals |
| 06/15/1999 | US5912080 Shaped graphite elements fabricated from thin graphite sheets |
| 06/10/1999 | DE19753184A1 Schmelzofenanlage Melting furnace |
| 06/09/1999 | CN1218900A Direct current steel ladle refiner |
| 06/03/1999 | WO1999027144A1 Operation method of furnace equipment for magnesium alloys |
| 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 |
| 06/03/1999 | CA2311361A1 Operation method of furnace equipment for magnesium alloys |
| 06/02/1999 | CN2322110Y High-efficient energy-saving flue-curing workshop |
| 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 | CN1217753A Multen reduction apparatus and method for operating same |
| 05/20/1999 | WO1999024194A1 Method and apparatus for melting non-ferrous metals, especially magnesium |
| 05/18/1999 | US5905752 ARC furnace fume collection system and method |
| 05/18/1999 | US5904895 Apparatus for electric steelmaking |
| 05/18/1999 | CA1340545C Process and apparatus for post combustion of reaction gases |
| 05/14/1999 | WO1999023264A1 Method and device for controlling the formation of foamed slag in an arc furnace |
| 05/12/1999 | EP0914218A1 Apparatus and method for hazardous waste vitrification |
| 05/11/1999 | CA2154299C Electric arc furnace post combustion method |
| 05/05/1999 | CN2317451Y Six phase electrode ore-smelting electric furnace |
| 05/05/1999 | CN1216102A Metal melting apparatus and method therefor |
| 05/05/1999 | CN1043245C Tilting Metallurgical unit comprising several vessels |
| 05/04/1999 | US5901170 Induction furnace |
| 05/04/1999 | US5900209 Plant for producing metal melts |
| 05/04/1999 | US5899317 Apparatus for pushing pulverized and/or lumpy objects |
| 04/29/1999 | WO1999020966A1 Structure of metallurgical furnace and operating method using the same metallurgical furnace |
| 04/29/1999 | DE19747317A1 Molten metal treatment vessel especially for use with steel |
| 04/29/1999 | DE19747002A1 Three-chamber magnesium melting furnace |
| 04/27/1999 | US5898726 Preheater for arc furnaces |
| 04/21/1999 | EP0909333A1 Arc furnace with an electrode receiving chamber |
| 04/21/1999 | CN1043055C Method for producing steel in electric arc furnace and electric arc furnace therefor |
| 04/20/1999 | CA2116906C Radiant wall oven and process for generating infrared radiation having a nonuniform emission distribution |
| 04/20/1999 | CA2105246C Heating apparatus for induction ladle and vacuum furnace |
| 04/20/1999 | CA2083129C Electric arc furnace arrangement for producing steel |
| 04/15/1999 | WO1999018245A1 Method for smelting fine grained direct reduced iron in an electric arc furnace |
| 04/15/1999 | WO1999018244A1 Method and apparatus for installation of refractory material into a metallurgical vessel |
| 04/15/1999 | WO1999002287A8 Method of fluxless melting of magnesium |
| 04/15/1999 | CA2305648A1 Method and apparatus for installation of refractory material into a metallurgical vessel |
| 04/14/1999 | CN1042956C Method and device for directly feeding liquid metal from ladle into electric furnace |
| 04/13/1999 | US5894541 Electric heater assembly |
| 04/08/1999 | WO1999016728A1 Device for preheating charge materials |
| 04/08/1999 | DE19744151A1 Method for melting fine-grained, directly reduced iron in an electric arc furnace |
| 04/07/1999 | EP0796351B1 Smelting installation with a current supply network with a relatively low short-circuit rating |
| 04/01/1999 | WO1999016083A1 Continuous sintering plant integrated with glove box for maintenance use |
| 03/31/1999 | EP0905260A1 Smelting reduction apparatus and method of operating the same |
| 03/30/1999 | US5889810 Apparatus for preheating and melting of scrap and process for the same |
| 03/30/1999 | US5888458 Melting furnace of metals and melting method thereof |
| 03/24/1999 | CN2311741Y Travelling grate variable speed case |
| 03/23/1999 | US5887017 Panelized spray-cooled furnace roof |
| 03/23/1999 | US5887016 Charging device for arc furnaces |
| 03/18/1999 | WO1999013281A1 Cooling device with panels for electric arc furnace |
| 03/18/1999 | DE19817590C1 Combination lance for treatment of metallurgical melts |
| 03/18/1999 | DE19740616A1 Gas cleaning equipment for electric kiln firing ceramics |
| 03/17/1999 | CN1211316A Iron-base scrap preheating apparatus and method |
| 03/16/1999 | US5882583 precast module leveling assembly for a metallurgical vessel |
| 03/16/1999 | US5882578 Tilting metallurgical unit comprising several vessels |
| 03/10/1999 | EP0900854A1 Condensate retention arrangement for cold hearth refining |
| 03/09/1999 | US5879617 Apparatus for treating waste materials |
| 03/09/1999 | US5879616 Metallurgical vessel and method of using the same |
| 03/04/1999 | DE19737220A1 Metallurgical furnace for production of nonferrous metals from a melt by ausmelt technology |
| 03/03/1999 | EP0734458B1 Loading device for feeding liquid metal into an electric furnace |
| 03/02/1999 | US5877394 Centrifuging plasma arc furnaces |
| 03/02/1999 | US5876661 Heater for tanks containing a bath of molten metal |
| 03/02/1999 | US5876483 Method and furnace for disposal of steel-making waste, and operating method of the furnace |
| 03/02/1999 | US5876197 Method for heating a fuel-fired industrial furnace and regenerator/burner system therefor |
| 02/24/1999 | EP0898137A1 Metal melting apparatus and method therefor |
| 02/23/1999 | US5873675 Method for hazardous waste vitrification |
| 02/23/1999 | CA2135496C Dc arc furnace |
| 02/23/1999 | CA2135495C Dc arc furnace |
| 02/17/1999 | CN2308063Y Fuel oil (gas) type non-ferrous metal melting and maintaining furnace |
| 02/17/1999 | CN1042144C Process for melting metal or non metal and material consisting of at least on hydrocarbyl polymer therefor |
| 02/17/1999 | CN1042143C Melting furnace with gas injection |
| 02/10/1999 | EP0896197A1 Straight hearth furnace for titanium refining |
| 02/10/1999 | EP0896067A1 Process and installation to monitor the slag state and the arc stability of the arc furnace |
| 02/10/1999 | CN2307268Y DC arc furnace bottom electrode structure |
| 02/04/1999 | WO1999005466A1 Steelmaking process using direct reduction iron |
| 02/02/1999 | US5867523 Electric furnace with conductive hearth |
| 02/02/1999 | CA2157621C Multiple furnace controller |
| 01/28/1999 | WO1999004046A1 Inert tank for treating oxidable liquid metal |
| 01/27/1999 | EP0893414A1 Method for regulating the oxygen contents during heating a feeder channel for making glass |
| 01/26/1999 | CA2161493C Burner block and method for furnace |
| 01/21/1999 | WO1999002287A1 Method of fluxless melting of magnesium |
| 01/20/1999 | EP0753077B1 Dc-heated metallurgical vessel with base electrode |
| 01/20/1999 | CN1041754C Method and appts. for pre-processing mixture containing metal |
| 01/19/1999 | CA2175109C Modular spray cooled side-wall for electric arc furnaces |
| 01/14/1999 | WO1999001710A1 Electric furnace with eccentric taphole and process of steel making in this furnace |
| 01/13/1999 | EP0890809A1 Iron-base scrap preheating apparatus and method |
| 01/13/1999 | EP0834049B1 Method for melting a batch in an electric arc furnace |
| 01/13/1999 | CN2304092Y Burning apparatus for hot-gas reverse-flame kiln |
| 01/12/1999 | US5858302 Apparatus for electric steelmaking |
| 01/07/1999 | WO1999001011A1 Electric heating element and heater assembly |
| 01/07/1999 | WO1999000522A1 Installation and method for producing molten metal |
| 01/07/1999 | EP0889138A1 Process and installation for for production of high-chromium containing steels and/or alloys in an electric-arc-converter |
| 01/07/1999 | CA2264665A1 Installation and method for producing molten metal |