| 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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| 05/25/2005 | CN1202930C Fire-resistant drainage outlet |
| 05/24/2005 | CA2112765C Premix burner for furnace with gas enrichment |
| 05/19/2005 | US20050103161 Of high-tensile steel plate to produce good quality of cast iron; high tensile strength and ordinary steel plate or melted together, and a spheroiding agent is added, which contains no rare earth element but does contain bismuth |
| 05/18/2005 | EP1530648A1 Methods and device for decarbonising a steel melt |
| 05/17/2005 | US6893607 Elevated discharge gas lift bubble pump and furnace for use therewith |
| 05/12/2005 | WO2005042792A1 Filter extraction mechanism |
| 05/11/2005 | CN2698804Y Steel-making pulsating oxygen lance for oxygen top-blown converter |
| 05/11/2005 | CN1615372A Method for the pyrometallurgical treatment of metals, metal melts and/or slags and injection device |
| 05/11/2005 | CN1201024C Blowing lance nozzle |
| 05/10/2005 | CA2315570C Gas blowing plug and manufacturing method therefor |
| 05/06/2005 | WO2005040433A2 Direct smelting plant and process |
| 05/06/2005 | CA2541893A1 Direct smelting plant and process |
| 05/04/2005 | EP1112387B1 Direct smelting vessel and direct smelting process |
| 05/04/2005 | CN2697552Y Water cooling copper jacket for electric furnace steel-making |
| 05/04/2005 | CN1611614A Method for manufacturing tool die steel plate produced by converter |
| 05/04/2005 | CN1611613A Method and apparatus for increasing production ability in iron and steel production |
| 05/04/2005 | CN1200118C Oxygen blasting powder spraying melting asistance technology for electric furnace steel making and making foam slag technology thereof |
| 05/04/2005 | CN1200117C Apparatus for charging molten iron in electric furnace for continuously smelting steel |
| 04/28/2005 | WO2005038372A2 Industrial furnace and associated jet element |
| 04/27/2005 | EP1525425A1 Cooling element |
| 04/27/2005 | EP1404881B1 A gas injection lance |
| 04/27/2005 | EP1325161B1 Blowing lance nozzle |
| 04/27/2005 | EP1315841B1 Process for the metallurgical treatment of molten steel in a converter with oxygen top blown |
| 04/27/2005 | EP1196642B1 Method for controlling and adjusting the concentration of a gas component in a melt and a device for carrying out the same |
| 04/27/2005 | EP1177406B1 Plug members for steel furnaces |
| 04/27/2005 | EP1137815B1 A process and an apparatus for producing metals and metal alloys |
| 04/27/2005 | CN1609237A Converter heat replacement hearth bottom circular seam packing method |
| 04/27/2005 | CN1198946C Burden preheating furnace comprising replaceable stack wall sections |
| 04/27/2005 | CN1198770C Process for making expanded slag and equipment for implementing the same method |
| 04/21/2005 | WO2005035797A1 Method for collecting and treating reaction gases from a production plant for molten metal and dust-removing machine therefor |
| 04/21/2005 | WO2005035462A1 Process of inertization (dampening) of steel making slag for economical reuse |
| 04/21/2005 | US20050083988 System and method of processing electric arc furnace dust |
| 04/20/2005 | EP1524322A2 Method of liquid steel production with slag recycling in a converter, equipment to employ the method |
| 04/20/2005 | CN2693782Y Coal and electricity combined steel-making furnace |
| 04/20/2005 | CN2693781Y Converter shell hanging device |
| 04/20/2005 | CN2693780Y Combined tapered split oxygen lance |
| 04/20/2005 | CN2693779Y Oxygen lance lifting system |
| 04/20/2005 | CN1197983C Method for optimizing operating conditions of smothered arc furnace |
| 04/20/2005 | CN1197982C Pressure control |
| 04/19/2005 | CA2324788C System for producing a single coherent jet |
| 04/14/2005 | WO2005005900A3 A burner and gas-injection device |
| 04/14/2005 | US20050077658 Fume treatment system and method |
| 04/14/2005 | DE10339402A1 Device for continuously removing molten material from melting crucible used in production of silicon wafers comprises granulate feeding unit, and unit for uniformly distributing granulate in melt |
| 04/14/2005 | DE10052352B4 Verwendung eines Reduktionsmittels in MgO-Sinter-Massen Using a reducing agent in MgO sinter-materials |
| 04/13/2005 | EP1521854A1 Continuous steelmaking plant |
| 04/13/2005 | EP1521853A2 Metallurgical vessel and method of iron making by means of direct reduction |
| 04/13/2005 | EP1521852A2 Injector for metal melting furnaces |
| 04/13/2005 | EP1521851A2 Direct production of refined metals and alloys |
| 04/13/2005 | EP1521628A1 Method for operating a production plant and production plant |
| 04/13/2005 | CN2692159Y Water cooled furnace mouth |
| 04/13/2005 | CN1196804C Austenite stainless steel with low cracking sensitivity during forming and its preparing method |
| 04/13/2005 | CN1196533C Device and method for forming single coherent air flow |
| 04/06/2005 | CN1603424A Bessemerizing control method based on intelligent compound dynamic model with sublance converter |
| 04/06/2005 | CN1603423A Bucket type closed steel smelting furnace |
| 04/06/2005 | CN1195881C Method for removing chrome and/or nickel from liquid slags |
| 04/05/2005 | US6875398 Coherent jet system with outwardly angled flame envelope ports |
| 04/05/2005 | US6875251 Melting iron and/or iron alloys in electric arc furnace containing bath of molten steel |
| 03/31/2005 | WO2004108971A3 Method and installation for the production of steel products having an optimum surface quality |
| 03/31/2005 | DE10341177A1 Process for improving the injection technique during steel production in lance oxygen steel making installations comprises integrating the lance at a steep angle in the hood on the mouth of an exhaust gas flue |
| 03/30/2005 | CN2689151Y Copper cooling device for oxygen gun on wall |
| 03/30/2005 | CN2688720Y Fire-proof slag stopping safety plug made of refractory fibers |
| 03/30/2005 | CN1602367A Method for reuse of steel sheet scrap |
| 03/30/2005 | CN1602363A Method for producing titanium oxide containing slag |
| 03/30/2005 | CN1600885A Method for manufacturing continuous casting low carbon steel containing boron in small square billets |
| 03/30/2005 | CN1600884A Method for smelting boron steel directly from pig iron containing boron |
| 03/30/2005 | CN1195079C Method for smelting stainless steel with waste steel by frequency-conversion electric induction furnace |
| 03/29/2005 | US6872344 Gas blowing plug and manufacturing method therefor |
| 03/24/2005 | WO2005025774A2 Method and apparatus for optimized mixing in a common hearth in plasma furnace |
| 03/24/2005 | WO2004111281A3 Compact micro-porous media device degassing molten metal |
| 03/24/2005 | US20050064190 Composition of matter tailoring: system I |
| 03/24/2005 | US20050061109 pelletizing metal or alloy containing oxide film of base metal, with a reducing agent, to form the pellets; treating the pellets in a vacuum with a reducing agent to react with oxide film without sublimation of the metal or alloy and eliminating the surface layer from the particle |
| 03/24/2005 | DE102004005060A1 Tank for metallurgical melting unit has upper part below intermediate ring resting only on collar of lower part, with intermediate ring completely free of static load |
| 03/23/2005 | CN1598000A Production technology for melting steel by electric arc furnace converter |
| 03/23/2005 | CN1597999A Electricity generating apparatus of comprehensive using rotating furnace gas and waste heat of steam |
| 03/23/2005 | CN1597998A Process for producing steel containing alumium low carbon low ilicon by small square blank continuous caster |
| 03/23/2005 | CN1597997A Grading using method for slag of steel-melting furnace |
| 03/22/2005 | US6869565 Integrated surface compositions and articles made therefrom |
| 03/22/2005 | CA2295386C System and method for minimizing slag carryover during the production of steel |
| 03/17/2005 | WO2005024069A2 Tapping device for a crucible, especially for a converter |
| 03/16/2005 | EP1513633A1 Injection device and process for the injection of a fluid |
| 03/16/2005 | CN2685787Y Steel-smelting furnace |
| 03/16/2005 | CN1596316A Method of manufacturing low phosphorous hot metal |
| 03/16/2005 | CN1193205C Plug members for steel furnace |
| 03/15/2005 | CA2332951C Tiltable light-arc furnace |
| 03/10/2005 | WO2005022062A1 Electric reducing furnace |
| 03/10/2005 | WO2004108328A3 Gas rinser with suitable slot-shaped canals |
| 03/10/2005 | WO2004101829A3 Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 03/09/2005 | EP1511871A1 Refining ferroalloys |
| 03/09/2005 | CN1590566A Slag steel separation method and device |
| 03/09/2005 | CN1590565A Blow in method for elongating blast furnace service life |
| 03/09/2005 | CN1192118C Method and apparatus for convecter tapping capable of preventing slag from flowing off |
| 03/03/2005 | WO2004104231A3 Method and device for treating melt metals by means of a refining oxygen-based agent |
| 03/03/2005 | US20050046094 Metallurgical vessel for melting device for liquid metals |
| 03/03/2005 | DE10359449B3 A sensor carrier tube formed from a mixture of vegetable fiber material, starch and/or protein useful for measuring metal or cryolithic melts, especially cast iron, steel, or copper melts |
| 03/03/2005 | DE102004036767A1 Production of pig iron comprises subjecting top gas recycled from blast furnace process to absorptive or adsorptive process to remove carbon dioxide, and further processing |
| 03/02/2005 | EP1510770A1 Vessel for a metallurgical melting unit |
| 03/02/2005 | CN1588346A Method for predicting converter terminal point using artificial nurve network technology |
| 03/02/2005 | CN1191378C Slag bot |
| 03/02/2005 | CN1191376C Directly amelting apparatus |
| 02/24/2005 | WO2005017233A2 Insulated cold hearth for refinning metals having improved thermal efficiency |