| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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| 06/24/2004 | DE10255551A1 Closing or opening vertical drawing-off hole of metallurgical vessel, especially electric light arc oven, involves using upper and lower sliding locks, drawing-off channel, filler delivery device |
| 06/23/2004 | EP1431404A1 Method for refining molten iron containing chromium |
| 06/23/2004 | EP1431403A1 Direct smelting furnace and process therefor |
| 06/23/2004 | EP1431402A1 Device apt to feed powdered substances onto a metal-slag bath surface and use thereof |
| 06/23/2004 | EP1287170A4 Apparatus for injecting solid particulate material into a vessel |
| 06/23/2004 | EP1137815A4 A process and an apparatus for producing metals and metal alloys |
| 06/23/2004 | CN2621185Y Gun position regulating device of converter oxygen gun |
| 06/23/2004 | CN2621088Y Spraying device of paint for oxygen lance |
| 06/23/2004 | CN1506484A Color antirust iron and steel without paint |
| 06/23/2004 | CN1506473A Liquid steel degassing method |
| 06/17/2004 | WO2004050939A2 Plasma-assisted melting |
| 06/17/2004 | WO2004050920A1 Reaction vessel operation control method, device, computer program, and computer-readable record medium |
| 06/17/2004 | US20040113130 Composition of matter tailoring: system I |
| 06/16/2004 | EP1428894A1 A method of degassing molten steel |
| 06/16/2004 | CN1504583A Automatic control method for hanging scum plug casting device |
| 06/15/2004 | US6749661 Speeding scrap treatment by introducing high velocity oxidizing gas stream sooner |
| 06/15/2004 | CA2245919C Method and immersion sensor to measure electrochemical activity |
| 06/13/2004 | CA2452902A1 Method of degasing molten steel |
| 06/10/2004 | WO2003013694A8 Process to recover energy form hot gas |
| 06/10/2004 | US20040107796 Plasma-assisted melting |
| 06/09/2004 | EP1425425A1 Converter gearing |
| 06/09/2004 | EP1337679A4 Grain-refined austenitic manganese steel casting having microadditions of vanadium and titanium and method of manufacturing |
| 06/09/2004 | CN1152967C Phosphorus controlling method for producing ultra-low phosphorus steel |
| 06/08/2004 | CA2126079C Extraction of mercury and mercury compounds from contaminated material and solutions |
| 06/03/2004 | WO2004046401A1 Method for obtaining copper by spraying a melt containing a copper raw material |
| 06/03/2004 | WO2004046391A1 Method and device for cooling blowing lances |
| 06/03/2004 | WO2004046390A1 Gas supply system for a metallurgical furnace and operating method for said system |
| 06/03/2004 | WO2004045800A2 Modular lance |
| 06/03/2004 | DE10253463A1 Verfahren und Vorrichtung zur Kühlung von Blaslanzen Method and apparatus for cooling blowing lances |
| 06/02/2004 | EP1423227A1 Riser(s) size reduction and/or metal quality improving in gravity casting of shaped products by moving electric arc |
| 06/02/2004 | EP1117845B1 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product |
| 06/02/2004 | CN2618672Y Anti-blocking type fine ash chain ash discharge device |
| 06/02/2004 | CN1501984A Ladle refining of steel |
| 06/02/2004 | CN1500763A Refractory repair material batch |
| 06/02/2004 | CN1152144C Steelmaking process using granule waste steel or iron as raw material |
| 05/27/2004 | WO2004044511A1 Metallurgical melting vessel comprising a tuyere arrangement, and method for secondary metallurgical treatment |
| 05/27/2004 | US20040102306 Refractory repair material batch |
| 05/27/2004 | US20040100004 Concurrent pressing porous and nonporous bodies; controlling gas flow; injecting gas into metal melt |
| 05/27/2004 | US20040100002 Reducing precipitation; injecting inert gas to cause turbulence |
| 05/27/2004 | US20040099091 Metallurgy; comprises melting device, electric arc furnace, and air refining process; decarbonization; for reversible treatment of unreduced coverter slag |
| 05/27/2004 | DE10253712A1 Feuerfester Reparaturmassenversatz Refractory repair mass displacement |
| 05/27/2004 | DE10253535A1 Gas feed system for a converter in the production of carbon steels or stainless steels comprises a feed throttle unit assigned to a nozzle for periodically reducing or interrupting the gas supply into the inside of an oven |
| 05/25/2004 | US6740138 Melting iron material and carbon material to produce a high-carbon molten iron whose carbon content is not lower than 1% |
| 05/21/2004 | WO2004042091A1 Vessel for the metallurgical treatment of pig iron, steel melts and similar, in particular a converter vessel |
| 05/21/2004 | WO2004042089A1 Method for the production of corrosion-resistant steels and cast irons by alloying with a polymerized, fullerene-like carbon |
| 05/20/2004 | US20040094878 Modular lance |
| 05/20/2004 | US20040093988 Comprising, based on the raw slag total weight, at least 45% in weight of CaO and less than 30% in weight of Fe2O3, overcoming the inconveniences of the prior art |
| 05/19/2004 | EP1420003A1 Repair refractory composition |
| 05/19/2004 | EP1419355A1 Metallurgical oven and a material basket for a metallurgical oven |
| 05/19/2004 | DE10251964A1 Quick-acting fastener for metallurgical ladles, is based on toggle lever which clamps carrier ring support and ladle bracket together, or easily releases them |
| 05/19/2004 | CN1497054A Refining method of chromium containing fused metal |
| 05/13/2004 | US20040091405 Device apt to feed powdered substances or the like and use thereof |
| 05/13/2004 | US20040091014 Dual use of an induction furnace to produce hot metal or pig iron while processing iron and volatile metal containing materials |
| 05/13/2004 | DE10249277A1 Furnace for heating a continuous strip-like hot material, especially a steel strip, has a nozzle for feeding flue gas vertically onto the surface of the hot material, and devices for producing turbulence in the nozzle |
| 05/12/2004 | EP1259651B1 System for producing steel |
| 05/12/2004 | CN1496292A Refractory plug or brick for injecting gas into molten metal |
| 05/11/2004 | US6732547 Method for the treating stainless steel refining slag |
| 05/06/2004 | US20040084816 Metal injecting apparatus |
| 05/06/2004 | EP1414759A1 Method of preparing a fiberizable melt of a mineral material |
| 05/06/2004 | EP1414546A1 Process to recover energy form hot gas |
| 05/05/2004 | CN1148460C Spraygun for splashing slags to protect converter and its splashing method |
| 05/05/2004 | CN1148459C Airflow blowing method and device for oxygen gun of converter |
| 04/29/2004 | WO2004036131A1 Electric furnace for steel making |
| 04/29/2004 | WO2004035847A1 Ferronickel and process for producing raw material for ferronickel smelting |
| 04/29/2004 | WO2004035837A1 Revamping of a basic oxygen furnace into an electric furnace for making steel |
| 04/29/2004 | WO2004007775A3 Direct melting and refining of metal oxide material |
| 04/29/2004 | DE202004000690U1 grinding-out and fitting tool for a changing gas scavenging cone is composed of receiving part and grinding part fitted with hard metal chips, diamond chips or similar |
| 04/28/2004 | EP1413174A1 Mounting arrangement for auxiliary burner or lance |
| 04/28/2004 | EP1105748A4 Measuring the thickness of materials |
| 04/28/2004 | CN1492209A Mounting structure of auxiliary burning nozzle or jet gun |
| 04/27/2004 | CA2220263C Method and apparatus for removing deposit in non-ferrous smelting furnace |
| 04/22/2004 | WO2004007777A3 Metallurgical vessel and method of iron making by means of direct reduction |
| 04/21/2004 | EP1409992A2 Method and apparatus for improved process control in combustion applications |
| 04/21/2004 | EP1409754A1 Method for direct metal making by microwave energy |
| 04/21/2004 | EP1409750A1 Vortex inhibitor with sacrificial rod |
| 04/21/2004 | CN2612676Y Bottom gas supply device for combined blown converter |
| 04/20/2004 | US6723276 Scrap melter and impeller |
| 04/20/2004 | US6723275 Vortex inhibitor with sacrificial rod |
| 04/15/2004 | DE10152371B4 Verfahren und Vorrichtung zur Bestimmung der Schaumschlackenhöhen beim Frischvorgang in einem Blasstahlkonverter Method and apparatus for determining the height of the foamed slag refining operation in a BOF |
| 04/15/2004 | DE10060217B4 Blaslanze Lance |
| 04/13/2004 | US6719944 Method and apparatus for deslagging and tapping an integrated electric steel making furnace |
| 04/08/2004 | WO2004033730A1 Method for producing titanium oxide containing slag |
| 04/08/2004 | WO2004008135A3 Method for online measurement of molten phases |
| 04/08/2004 | US20040066830 Electrode and method for arranging the electrode in electric arc furnaces |
| 04/08/2004 | DE19752743C5 Schlackenprobennehmer Slag sampler |
| 04/07/2004 | EP1404881A1 A gas injection lance |
| 04/07/2004 | EP1404472A2 Method and apparatus for metal pouring |
| 04/07/2004 | EP1332232B1 Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel |
| 04/07/2004 | CN2610320Y Carbon detemination probe in molten steel furnace |
| 04/07/2004 | CN2609938Y Connecting device of converter movable waste gas hood |
| 04/07/2004 | CN1487099A Technological process of making flat spring steel for automobile |
| 04/07/2004 | CN1144883C Method for transmitting powder and gas to liquid |
| 03/31/2004 | EP1403387A1 METHOD FOR DECARBONIZATION REFINING OF CHROMIUM−CONTAINING MOLTEN STEEL |
| 03/31/2004 | EP1228252B1 Method and device for enclosing an electric arc |
| 03/31/2004 | CN1485449A Top-blowing oxygen apparatus for electric-arc steel furnace |
| 03/31/2004 | CN1485448A Steelmaking process utilizing electric arc furnace to reclaim and recycle powdery industrial waste |
| 03/30/2004 | US6712875 Including main hearth having melting cavity with two opposed overflows, adjustable feed chute positioned to provide metal chips to hearth, two molds aligned and in fluid communication with overflows, overhead heat source for selective heating |
| 03/25/2004 | US20040056395 Pump for pumping molten metal with expanded piston |
| 03/25/2004 | US20040056394 Method and apparatus for optimized mixing in a common hearth in plasma furnace |
| 03/24/2004 | CN1483838A Technology for making combined tapping hole |