Patents
Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381)
07/1996
07/17/1996CN1126762A Method of making wear-resisting refractory-material dies
07/11/1996WO1996021048A1 Apparatus for melting fine particles containing carbon and method for melting such fine particles using the apparatus
07/11/1996WO1996021047A1 Converter top-blow refining method having excellent decarburization characteristics and top-blow lance for converter
07/09/1996US5535235 Melting furnace having preheating vessel
07/09/1996US5533713 Gas and/or solid material blasting device for a metallurgical vessel and method of manufacture thereof
07/03/1996EP0719867A1 Ovenvessel for a DC arc furnace
07/03/1996CN1125772A Method for controlling slug hull of rotative furnace
07/02/1996US5533043 Installation for producing liquid metal by melting scrap iron
06/1996
06/27/1996WO1996019592A1 Tilting metallurgical unit comprising several vessels
06/27/1996WO1996019591A1 Process and apparatus for the manufacture of steel from iron carbide
06/27/1996DE4445783A1 Kippbares metallurgisches Aggregat Tiltable metallurgical unit
06/27/1996CA2208229A1 Tiltable metallurgical unit comprising a plurality of vessels
06/26/1996CN2229930Y Oxygen side blown converter
06/26/1996CN1125256A Removable converter
06/25/1996US5529598 Bottom anode for a metallurgical vessel
06/20/1996DE19547010A1 Acoustic monitoring of steel conversion progress
06/19/1996EP0717115A1 Process and installation for running a twin-vessel arc furnace
06/18/1996US5527374 Process for improving metal production in steelmaking processes
06/12/1996EP0417296B1 Direct smelting process
06/12/1996CN2228915Y Sectional tapping hole for top-blown oxygen converter
06/12/1996CN2228914Y Straight tube imbeded bottom-blown permeability plug
06/11/1996US5526374 Direct current electric arc furnace
06/11/1996CA2039295C Furnace bottom structure of direct current electric furnace
06/06/1996WO1996017093A1 Method of refining molten metal
06/06/1996WO1996017092A1 Smelting installation with a current supply network with a relatively short-circuit rating
06/06/1996WO1996017091A1 Direct current arc furnace with two or more electrodes
06/06/1996CA2206579A1 Plant for producing metal melts
06/06/1996CA2206564A1 Direct current arc furnace
06/05/1996EP0714995A1 Method for making titanium-containing steels and steels thus made
06/05/1996EP0714989A1 Steel manufacturing method using converter
06/04/1996US5524119 Tilting electric arc furnace
05/1996
05/30/1996WO1996016190A1 Process and device for blowing oxygen-containing gas with and without solid material on a metal melt in a metallurgical vessel, especially an rh vessel
05/30/1996WO1996016189A1 Process for melting metal or non metal materials
05/30/1996CA2181804A1 Process for melting metal or non metal materials
05/29/1996EP0714007A1 A cover assembly for a vessel such as an electric arc furnace
05/28/1996US5520374 Device for coupling a metallurgical carriage to a flexible conduit
05/28/1996US5520372 Process and device for preheating scrap
05/23/1996WO1996015278A1 Liquid cooled nozzle for a basic oxygen furnace lance
05/22/1996EP0713054A1 Process and device for the thermal destruction of waste
05/21/1996US5518523 Converter process for the production of iron
05/21/1996CA2092716C Device for installing and removing gas purging plugs for metallurgical vessels
05/15/1996EP0711397A1 Charge preheater
05/14/1996US5516081 Apparatus for producing a molten metal flow
05/14/1996US5515739 Molten metal sampler
05/08/1996EP0710726A1 Scrap melting method
05/07/1996US5514331 Method and device for producing stainless steel
04/1996
04/30/1996US5513206 Apparatus for preheating and charging scrap materials
04/30/1996US5511768 Tap hole plugging device
04/30/1996CA2049774C Self-cooling lance or tuyere
04/25/1996DE19504359C1 Prodn. of alloys from components of different melting points
04/23/1996CA2095768C Apparatus for opening and closing a taphole of a metallurgical furnace
04/23/1996CA2065423C D.c. arc furnace
04/18/1996DE4442362C1 Method and appts. for performing a variety of processes on a melt using standard equipment
04/17/1996EP0557518B1 D.c. furnace with a hearth electrode, hearth electrode and electrode block, as well as process for operating said furnace
04/17/1996CN1120655A Dezincing induction melting system
04/17/1996CN1120653A Electric arc furnace post combustion method
04/16/1996US5508497 Method for open-loop/closed-loop control of at least two parallel oscillating circuit inverters feeding induction furnaces
04/16/1996US5507854 Controlling level in mold during casting on basis of change in transmission time of electroconductive pseudo random signals
04/10/1996CN2224208Y Drill bit of converter maintenance machine
04/09/1996US5505762 Lance for immersion in a pyrometallurgical bath and method involving the lance
04/03/1996CN1031466C A tiltable converter
03/1996
03/28/1996WO1996009414A1 A method of adapting the amounts of additives such as deoxidizers and/or alloying elements
03/27/1996EP0703028A1 Device for supplying an internal nozzle of a metallurgical vessel with inert gas
03/27/1996EP0703026A1 Sensor arrangement for temperature measurement
03/21/1996WO1996008584A1 Process and device for making liquid iron by non-electric and electric smelting
03/21/1996DE4434369A1 Verfahren und Vorrichtung zur Durchführung von metallurgischen Arbeiten von Eisenmetall Method and apparatus for carrying out metallurgical operations of iron metal
03/21/1996DE4433511A1 Prodn of steel from pig iron in converter
03/20/1996CN2222721Y Oxygen lance position display device for steelmaking converter
03/19/1996US5500870 Process and device for the extraction of valuable substances
03/19/1996US5500032 Method for continuously melting down scrap metal
03/19/1996US5499798 In a metallurgical vessel
03/12/1996US5499264 Steel making plant
03/12/1996US5497977 Process and apparatus for preheating and inserting scrap into a smelting furnace
03/10/1996WO1996030709A1 Method and apparatus for preheating and melting scrap
03/07/1996WO1996006954A1 Method and apparatus for electric steelmaking
03/07/1996DE19517151C1 Melting metal scrap in electric arc furnace of good operational effectiveness and durability
03/06/1996EP0699885A1 Furnace vessel for a direct current arc furnace
03/05/1996CA2025015C Direct smelting process
02/1996
02/29/1996WO1996006195A1 Process for blowing non-ferrous metal scrap and intermediate products from smelting works
02/29/1996WO1996006193A1 Converters and method of refining metal melts, in particular refining pig iron to steel
02/29/1996DE4429937A1 Verfahren zum Verblasen von NE-Metall-Schrott und Hütten-Zwischenprodukten A method of blowing of non-ferrous metal scrap and huts intermediates
02/28/1996EP0698669A1 Process for utilisation of plastic garbage and/or plastic containing residuals and iron-metallurgical dusts
02/28/1996EP0635071B1 Process and device for preventing contamination of the tapping steel by flush slag in a tipping converter
02/28/1996EP0587651B1 D.c. arc furnace
02/27/1996CA2031271C Method for increasing the durability of refractory vessel linings
02/22/1996WO1995035393A3 Method for the production of steel
02/22/1996DE4429653A1 Konverter und Verfahren zum Frischen von Metallschmelzen insbesondere von Roheisen zu Stahl Converter and method for refining molten metal in particular of pig iron to steel
02/20/1996US5493580 Mixing with carbon-containing material, injecting in slag; improving foaming efficiency
02/20/1996US5492309 Closed tiltable steelworks arc furnace with associated scrap charging assembly
02/13/1996US5491279 Dissociating solid waste, forming gaseous oxygenated product
02/08/1996WO1996003238A1 Slag control apparatus for molten metal vessels
02/06/1996US5490163 Method of operation of a D.C. electric-arc furnace with bottom electrode and refractory part for its implementation
01/1996
01/31/1996CN2218748Y Water cooling suspending arm universal water supply device for converter
01/30/1996US5487764 Reclaiming and utilizing discarded and newly formed coke breeze, coal fines, and blast furnace revert materials, and related methods
01/24/1996EP0693561A1 Electric arc furnace post-combustion method
01/24/1996CN1115580A Process for making steel and hydraulically active binders
01/23/1996US5487081 Process and apparatus for the treatment of the waste gases of an arc furnace
01/18/1996DE4424324A1 Method for melting down scrap containing plastics
01/18/1996DE19525389A1 Zinc-removal induction melting system
01/17/1996EP0692544A1 Method for controlling the foaming of slag in three-phase electric arc furnaces