| 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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| 04/06/2011 | CN101591752B Steel for cup-shaped iron core of loudspeaker and production method thereof |
| 04/06/2011 | CN101294230B Duplex steelmaking technique of revolving furnace |
| 03/31/2011 | WO2011037789A1 Exhaust processing and heat recovery system |
| 03/31/2011 | DE102009043639A1 Verfahren und Vorrichtung zur Steuerung der Erzeugung einer Schaumschlacke in einer metallischen Schmelze Method and apparatus for controlling the production of a foaming slag in a metal melt |
| 03/31/2011 | CA2774642A1 Exhaust processing and heat recovery system |
| 03/30/2011 | EP2302080A1 Method and device for controlling the generation of a foam slag in a metallic molten mass |
| 03/30/2011 | EP2300768A1 Fixture for an injector and method for the operation thereof |
| 03/30/2011 | EP1664355B1 Method for collecting and treating reaction gases from a production plant for molten metal and dust-removing machine therefor |
| 03/30/2011 | CN201778054U Rotating plate type eccentric bottom tapping device of electric arc furnace |
| 03/30/2011 | CN201778053U Steelmaking furnace feeder |
| 03/30/2011 | CN201778052U Gas recovery device for steelmaking converter |
| 03/30/2011 | CN201778051U Rotation type steam-exhausting and dust-removing device for hot disintegrating device |
| 03/30/2011 | CN201778050U Gas curtain dust removing device for converter |
| 03/30/2011 | CN201778049U Movable platform for operation and maintenance of bottom-blowing smelting furnace |
| 03/30/2011 | CN201778048U Coke pusher body frame with flange structure |
| 03/30/2011 | CN101994052A Nitrogen-containing austenitic alloy |
| 03/30/2011 | CN101993987A Method for producing extremely thick steel plate with low alloy and high intensity by continuously casting plate blank |
| 03/30/2011 | CN101993974A Method for preparing pure iron with extremely low gas content |
| 03/30/2011 | CN101993973A Method for producing high-purity pure iron |
| 03/30/2011 | CN101993972A Arc furnace steelmaking method |
| 03/30/2011 | CN101993971A Airflow slag blocking valve and using method thereof |
| 03/30/2011 | CN101993970A Device and method for detecting and controlling slag state of converter |
| 03/30/2011 | CN101993969A Converter bottom blowing air brick and using method thereof |
| 03/30/2011 | CN101993968A Converter molten steel temperature control method |
| 03/30/2011 | CN101698897B Technology of quickly producing white slag by deep desulphurizing after converter tapping |
| 03/30/2011 | CN101634523B Casting method of cast steel cooling wall |
| 03/30/2011 | CN101634520B Casting method of cast steel cooling plate |
| 03/30/2011 | CN101603113B Probe output device |
| 03/30/2011 | CN101487073B Adjustable ultra high power coherent jet oxygen lance nozzle for converter steel melting |
| 03/29/2011 | CA2568845C Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 03/29/2011 | CA2482050C Iterative cycle process for carbon supersaturation of molten metal and solid metals obtained thereby |
| 03/24/2011 | WO2010145845A8 Movable device for injecting oxygen and other materials into electric arc furnace |
| 03/23/2011 | EP2297366A1 Dual outlet injection system |
| 03/23/2011 | EP1148295B1 Gasification melting furnace for wastes and gasification melting method |
| 03/23/2011 | CN201770724U Electric furnace cover for steelmaking |
| 03/23/2011 | CN201770723U Special tool for replacing tap holes |
| 03/23/2011 | CN201770722U Material conveying device of converter |
| 03/23/2011 | CN201770721U Cooling water circulation device for movable gas hood of converter |
| 03/23/2011 | CN101988800A Arc melting equipment and molten metal manufacturing method using arc melting equipment |
| 03/23/2011 | CN101988139A Method for assembling and welding converter backing ring of U-shaped opening structure |
| 03/23/2011 | CN101988138A Operation method of repairing water leakage of converter support ring |
| 03/23/2011 | CN101988137A Exothermic agent for converter molten iron with low heating value |
| 03/23/2011 | CN101613800B Metallurgical composite pelletizing prepared through twice pelletizing method, as well as preparation method and application thereof |
| 03/23/2011 | CN101413088B Sulfurated hydrogen stress etching-resisting petroleum casing pipe and manufacturing method thereof |
| 03/22/2011 | US7910050 Stopper for a metallurgical melting pot |
| 03/22/2011 | US7909909 Method of production of secondary steel based on scrap |
| 03/22/2011 | CA2492908C Cooling element |
| 03/17/2011 | WO2011029729A1 Burner platform and burner system comprising a burner platform for an arc furnace |
| 03/17/2011 | DE10103605B4 Vorrichtung zum Einspeisen von festem Partikelmaterial in einen Kessel An apparatus for feeding solid particulate material into a vessel |
| 03/16/2011 | CN201762374U Slag pot car |
| 03/16/2011 | CN201762366U Oxygen lance nozzle and oxygen lance |
| 03/16/2011 | CN201762365U Horizontal transmission device of under-furnace vehicles of converter |
| 03/16/2011 | CN201762364U Converter gas cooling device |
| 03/16/2011 | CN201762363U Hydraulic cylinder control device of circular seam washer |
| 03/16/2011 | CN201762362U Coal gas cooling and purifying device of converter |
| 03/16/2011 | CN201762361U Flue gas purification and waste heat recovery system device of oxygen top-blown converter |
| 03/16/2011 | CN101985671A Desulfurization and deoxidization alloying process method in steel making ladle of electric arc furnace |
| 03/16/2011 | CN101985670A Top slag-free steel making method for converter |
| 03/16/2011 | CN101532069B Device for recycling flue gas of steelmaking converters through full-dry purification and process thereof |
| 03/16/2011 | CN101328523B Ladle top-bottom blowing vanadium extracting method |
| 03/15/2011 | US7906068 Support post system for molten metal pump |
| 03/09/2011 | CN201756563U Double-ball-hinge four-point-supported convertor connecting device |
| 03/09/2011 | CN101984087A Slag liquefaction heating process and device |
| 03/09/2011 | CN101608282B Drill rod material steel pipe resisting low temperature of -40 to -60 DEG C and manufacturing method thereof |
| 03/09/2011 | CN101581536B Scrap steel collection device |
| 03/09/2011 | CN101560583B Rotary furnace cooling agent made of metallurgical waste material product and manufacture method thereof |
| 03/09/2011 | CN101560581B Rotary furnace cooling agent and manufacturing method thereof |
| 03/08/2011 | US7901617 Heat exchanger |
| 03/08/2011 | US7901616 Method of building a direct smelting plant |
| 03/08/2011 | US7901482 Removal method of nitrogen in molten steel |
| 03/03/2011 | WO2011024982A1 Arc melting facility, and method for manufacturing molten metal using the arc melting facility |
| 03/03/2011 | WO2011024814A1 Gas jet device |
| 03/03/2011 | DE102009039260A1 Vorrichtung zur Entgasung einer Stahlschmelze mit einem verbesserten Auslaufrüssel Apparatus for degassing of molten steel with an improved outlet trunk |
| 03/02/2011 | EP2288734A1 Vortex inhibitor |
| 03/02/2011 | CN201753359U Conical oxygen lance |
| 03/01/2011 | US7897100 Method and device for the continuous production of steel using metal charge material |
| 02/24/2011 | DE10339402B4 Schmelzvorrichtung mit einem Schmelztiegel sowie Verfahren zum Zuführen von Granulat in eine im Schmelztiegel vorhandene Schmelze Melter with a crucible and method of feeding pellets into an existing melt in the crucible |
| 02/23/2011 | EP2285992A1 Oxygen blowing lance with protection element |
| 02/23/2011 | CN101979671A Method for baking refractory material lining of combined blown converter |
| 02/23/2011 | CN101006314B Equipment for measurement and control of load material or scrap feeding into a furnace and relative method |
| 02/22/2011 | CA2631531C Furnace material detection system for a metal making lance |
| 02/17/2011 | WO2011020092A1 Waste heat system |
| 02/17/2011 | WO2011018197A1 Lance for a smelting vessel system or a metallurgical reaction vessel |
| 02/17/2011 | DE202010015898U1 Mechanisch ausfahrbare Ausmauerungsvorrichtung für Konverter in Stahlwerken Mechanically extendable Relining for converters in steel mills |
| 02/17/2011 | DE102010024035A1 Lanze für eine Schmelzgefäßanlage oder ein metallurgisches Reaktionsgefäß Lance for a melting pot plant or a metallurgical reaction vessel |
| 02/17/2011 | CA2771157A1 Waste heat system |
| 02/16/2011 | CN201746572U Composite sliding brick for sliding steel outlet of converter |
| 02/16/2011 | CN201746571U Elastic reinforcing hoop for evaporative cooling flue |
| 02/16/2011 | CN201746570U Slag scraping device movable bracket of converter |
| 02/16/2011 | CN201746569U Sliding brick for sliding steel tapping hole of converter |
| 02/16/2011 | CN201744224U Water supply filter device of one converter dust trapping venturi tube |
| 02/16/2011 | CN101977867A Method of processing slag |
| 02/16/2011 | CN101974664A Slag controlling and steel tapping device for slide gate nozzle of converter steel tapping hole |
| 02/16/2011 | CN101974663A Coal gas waste heat recovery method of high-temperature rotary furnace |
| 02/16/2011 | CN101974662A Connecting device for spherical hinge slider type converter backing ring and furnace shell |
| 02/16/2011 | CN101624675B 45BM steel for caterpillar track pin roll and manufacturing method thereof |
| 02/16/2011 | CN101613781B Bottom-blown air brick of top and bottom repeatedly blown converter and installing structure thereof |
| 02/16/2011 | CN101457274B Explosion suppression system and method applied to steel converter gas recovery |
| 02/16/2011 | CN101054612B Long life molten iron pretreatment desulfurizing spraying gun |
| 02/15/2011 | CA2646761C Method and apparatus for charging hot direct reduced iron from hot transport vessels into a melter or finisher |