Patents
Sitemap › F27 - Furnaces; Kilns; Ovens; Retorts › F27B - Furnaces, kilns, ovens, or retorts in general; Open sintering or like apparatus › F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces
Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383)
01/1999
01/06/1999CN2303249Y Electric arc furnace's inner wall
01/06/1999CN2303248Y Electric furnace for melting periclase
01/06/1999CN1041557C Smelting plant with two melting furnace arranged in juxtaposed relationship
12/1998
12/30/1998EP0887608A1 Precast module leveling assembly for a metalurgical vessel
12/30/1998EP0887607A1 A metallurgical furnace unit
12/30/1998EP0887131A1 Improved metallurgical vessel and method of using the same
12/30/1998EP0886751A1 Ladle brick leveling set
12/30/1998CN1203568A Resistance melting furnace
12/30/1998CN1041438C Base electrode of DC heated metallurgical vessel
12/30/1998CA2242251A1 Method and apparatus for producing high chromium content steels and/or ferroalloys in an electric arc converter
12/29/1998US5853657 Reduced dusting bath system for metallurgical treatment of sulfide materials
12/23/1998EP0885977A1 Vessel apparatus for the treatment of molten metal
12/22/1998US5851263 Process for smelting steel in an electric arc furnace, and electric arc furnace for its implementation
12/22/1998CA2136771C Drop-in furnace lining
12/22/1998CA2135780C Electric arc melting furnace
12/22/1998CA2135635C Apparatus for preheating and charging scrap materials
12/17/1998DE19748310C1 Controlling formation of foam slag in an electric arc furnace
12/16/1998EP0884545A1 Electric ARC melting furnace
12/15/1998US5850413 Device to support and swing the hearth in an electric furnace
12/15/1998US5850073 For heating molten metal
12/15/1998US5850072 Electric heater assembly
12/15/1998US5849061 Process for refining high-impurity copper to anode copper
12/11/1998CA2239268A1 Precast module leveling assembly for a metallurgical vessel
12/11/1998CA2238855A1 Improved metallurgical vessel and method of using the same
12/10/1998WO1998055411A1 Method and apparatus for melting of glass batch materials
12/08/1998US5846480 Aluminum remelting furnace, in particular for melting aluminum scrap to be recycled
12/08/1998CA2115868C Device for lifting and moving the roof of a spray cooled furnace
12/03/1998WO1998054514A1 Method and apparatus for operation control of melting furnace
12/03/1998CA2292409A1 Operation control method and apparatus for melting furnace
12/02/1998EP0646757B1 Dc arc furnace
12/01/1998US5844933 For metallurgical purposes
12/01/1998US5843368 Apparatus for electric steelmaking
11/1998
11/26/1998WO1998053261A1 A metallurgical furnace unit
11/25/1998EP0813438B1 Feed processing employing dispersed molten droplets
11/24/1998US5839894 Method for the thermal dedusting of regenerative afterburning systems without the release of contaminants and without interruption of the main exhaust gas stream
11/24/1998CA2053718C Method and apparatus for remelting and refining of magnesium and magnesium alloys
11/19/1998DE19719940A1 Method and apparatus for reinforcing melt motion during aluminium melting
11/18/1998EP0877827A1 Method for processing a powdery material, and apparatus therefor
11/11/1998CN1198525A Gunjet/burner for metal smelting furnace
11/10/1998US5835524 Scrap-melting electric arc furnace
11/10/1998US5835523 Bottom electrode for a metallurgical vessel
11/04/1998EP0876084A1 Induction furnace
11/04/1998EP0874704A1 Improved molten metal charge well
11/04/1998CN2296501Y Gas combusting apparatus
11/04/1998CN2296500Y Dust remover for steelmaking by electric furnace
10/1998
10/29/1998WO1998048229A1 Economiser for electric arc furnace
10/29/1998WO1998048228A1 Method for smelting iron-based alloys in an electric furnace
10/29/1998DE19717072A1 Method of producing of refractory monolithic linings, e.g. in pans, electric arc furnaces, converters etc
10/28/1998EP0767843B1 Method and device for directly feeding liquid metal from a ladle into an electric furnace
10/28/1998CN2295977Y Middle suspension clamp catcher
10/27/1998US5827475 Apparatus for removing an accretion from an uptake at the exit of metal producing furnace
10/22/1998WO1998046956A1 System to load pre-heated scrap by means of baskets for electric arc furnace
10/22/1998CA2284765A1 System to load pre-heated scrap by means of baskets for electric arc furnace
10/21/1998EP0871785A1 Method and apparatus for after-burning the combustible components of the atmosphere in metallurgical smelting vessels
10/21/1998CN2295178Y Electric-oven smoke collecting hood
10/21/1998CN2295177Y Fuel-oil annealing furnace for non-ferrous metal rolled material
10/21/1998CN2295176Y Crucible-less aluminium-alloy continuous smelting heat-insulation furnace
10/20/1998US5824263 Ladle brick leveling set
10/20/1998CA2110619C Direct current arc furnace and method for its operation
10/14/1998CN1195705A Method of producing foamy slag layer in electric arc furnace
10/13/1998US5822357 Process for melting a charge in a furnace
10/07/1998EP0868404A1 Rotary resistance melting furnace
10/07/1998CN1040129C Method and device for regulating combustion air flow rate of flue gas collection device of metallurgical reactor
10/01/1998WO1998043032A1 Method to load scrap for electric arc furnace and relative system
10/01/1998WO1998043030A1 Device to protect graphite electrodes in an electric arc furnace
10/01/1998WO1998042880A1 Cooled basket for steel plants
10/01/1998CA2285051A1 Cooled basket for steel plants
10/01/1998CA2284762A1 Method to load scrap for electric arc furnace and relative system
09/1998
09/30/1998EP0819182A4 A method of producing metals and metal alloys
09/30/1998CN2293039Y Smoke pipeline type back-flow combustion promoting furnace
09/29/1998CA2097003C Method for adjusting the supply of a reaction gas to be fed into a smelting furnace, and a multipurpose burner designed for realizing the same
09/23/1998EP0866294A1 Gaseous flow reversing valve with distributed gas flow
09/23/1998EP0866139A1 Lance/burner for molten metal furnace
09/22/1998US5812587 Apparatus and method for the supply of molten metal
09/22/1998US5811057 Refractory lining system for high wear area of high temperature reaction vessel
09/15/1998US5809057 Electroslag apparatus and guide
09/15/1998US5809055 Metallurgical vessel heated by direct current and having a bottom electrode
09/15/1998US5809054 Method for stabilizing an AC system against reactive-load fluctuations, and a power-factor correction device
09/09/1998EP0646758B1 Apparatus for preheating and supplying scraps
09/02/1998CN1192319A Bottom electrode for an Arc furnace operated with direct current and process for operating the furnace
09/02/1998CN1191962A Six-phase electrode ore-smelting furnace
09/01/1998US5802098 Melting vessel with fastening, mounting and tilting devices
09/01/1998US5802097 Melting method for an electric ARC furnace with alternative sources of energy and relative electric ARC furnace with special burner positioning
09/01/1998US5800591 Method and apparatus for feeding a steelmaking furnace
08/1998
08/27/1998DE19707453A1 Reinforcing motion of the metal during melting of aluminium@ in hydraulically tiltable furnaces
08/26/1998EP0768017B1 Method and furnace for making a molten product
08/20/1998WO1998036101A1 Method and device for positioning the mouth of a consumable lance
08/20/1998CA2280723A1 Method and device for positioning the mouth of a consumable lance
08/13/1998WO1998035196A1 Metal melting apparatus and method therefor
08/12/1998EP0857792A1 Electric arc furnace slag foaming
08/12/1998EP0832305A4 Combined oxygen blowing/fuel burner lance assembly
08/04/1998US5788921 Apparatus for electric steelmaking
08/04/1998US5788920 Oxygen blowing lance capable of being used in an electric furnace
07/1998
07/29/1998CN1188887A Non-ferrous metal bar tubing tempering furnace
07/28/1998US5787109 Furnace vessel for a DC arc furnace
07/28/1998US5787108 Exhaust device for electric arc furnaces and relative method
07/28/1998US5785923 Useful for melting metals, glasses and ceramics; includes metler housing, joule heated melter and an offgas outlet
07/22/1998EP0854198A1 Process and apparatus for charging and melting small-sized light metal scrap
07/22/1998EP0645584B1 Method of operating a plasma furnace
07/22/1998CN1188537A Method for melting batch in electric arc furnace
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