| 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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| 04/24/2013 | CN103060509A High-silicon molten iron smelting method |
| 04/24/2013 | CN103060508A Smelting method for improving phosphorus removal rate of converter |
| 04/24/2013 | CN103060507A Converter vacuum steelmaking method |
| 04/24/2013 | CN103060503A Pressure control in direct smelting process |
| 04/24/2013 | CN102586535B Static-dynamic automatic feeding method in converter smelting process |
| 04/24/2013 | CN102559988B Tinder trapping and heat energy recovery device for flue gas of steelmaking converter |
| 04/24/2013 | CN102505062B Converter rapid desilicification and dephosphorization pretreatment method |
| 04/24/2013 | CN102409238B 42CrMo alloy constructional steel super-thick plate and production method thereof |
| 04/24/2013 | CN102409137B Method for controlling content of nitrogen in oriented silicon steel |
| 04/24/2013 | CN102409132B Method for producing 25CrMnB steel through converter flow |
| 04/24/2013 | CN102367500B Automatic control method of duplex decarburization converter |
| 04/24/2013 | CN102352423B Method for selecting and smelting titanium from vanadium titanomagnetite at low temperature |
| 04/24/2013 | CN102094148B Q460D steel for low-alloy high-strength structure of below 50mm and production method thereof |
| 04/24/2013 | CN101993971B Airflow slag blocking valve and using method thereof |
| 04/24/2013 | CN101928885B Hydrothion corrosion resistant pipe steel and production method thereof |
| 04/18/2013 | DE102011014090B4 Verfahren zur Ermittlung eines Betriebs- und/oder Werkstoffparameters in einem Elektrolichtbogenofen A method for determining an operating and / or material parameters in an electric arc furnace |
| 04/17/2013 | EP2581462A1 Blowing lance with direct ignition through retractable ignition lance |
| 04/17/2013 | CN202881308U Cyclone oxygen lance for extracting vanadium in converter |
| 04/17/2013 | CN202881307U Oxygen lance conveying car |
| 04/17/2013 | CN202881306U Movable hood lifting gear |
| 04/17/2013 | CN202881305U Cast iron water-cooled fire hole with fewer accumulated slags |
| 04/17/2013 | CN202881304U Guiding positioning device for replacing tapping hole of converter |
| 04/17/2013 | CN103045938A Method for smelting low-strength cold heading steel |
| 04/17/2013 | CN103045935A Control method for surface decarburization and ferrite distribution of steel disc bar of spring |
| 04/17/2013 | CN103045930A Deoxidation alloying production process for low-carbon aluminum killed steel |
| 04/17/2013 | CN103045795A Liquid level measurement system of converter sublance |
| 04/17/2013 | CN103045794A Water cooling furnace mouth and converter |
| 04/17/2013 | CN103045793A Vacuum smelting device for converter and use method of vacuum smelting device |
| 04/17/2013 | CN103045792A Smelting technology of low-sulfur steel for thick plates during whole-course bottom blowing nitrogen production of converter |
| 04/17/2013 | CN103045791A Method for increasing recovery rate of converter gas |
| 04/17/2013 | CN103045790A Nickel-containing steel production process |
| 04/17/2013 | CN103045789A Converter smelting method for high-silicon molten iron generated during new blow-in of blast furnace |
| 04/17/2013 | CN103045778A Recycling method of LF scrap ladle slag inclusion |
| 04/17/2013 | CN102337371B Control method for enabling resulfurization amount of low-sulfur molten iron to be lower than 10ppm in smelting process of converter |
| 04/17/2013 | CN102168160B Converter steelmaking technology for directly reducing-alloying manganese ore |
| 04/11/2013 | US20130087670 Device for supporting molten metal container |
| 04/10/2013 | EP2576847A1 Method for operating an arc furnace, oscillation measurement device for an arc electrode and arrangement for an arc furnace |
| 04/10/2013 | EP2576846A2 Method for determining the time of ignition in the top-blowing process |
| 04/10/2013 | EP2576845A1 Process and plant for producing hot metal |
| 04/10/2013 | CN202869654U Converter flame temperature detection system |
| 04/10/2013 | CN202865256U Segmented reducing inner sleeve pipe of tapping hole for steel converter |
| 04/10/2013 | CN202865255U Oxygen lance nozzle of converter with water plate |
| 04/10/2013 | CN202865254U Converter flame temperature detection system |
| 04/10/2013 | CN202865253U Converter gas waste heat utilizing device |
| 04/10/2013 | CN103031407A New process for slagging and steelmaking by utilizing waste tundish coatings in electric furnace |
| 04/10/2013 | CN103031406A Double-heat addition electric furnace lining baking process |
| 04/10/2013 | CN103031405A Steel making technology for hot addition and transit of liquid steel slag in electric furnace |
| 04/10/2013 | CN103031404A Method for producing steel balls of ball mill |
| 04/10/2013 | CN103031403A Method for preventing crush of slag ladle when positioning furnace washing slag |
| 04/10/2013 | CN103031402A Production method for high-strength aseismic steel bar HRB400E |
| 04/10/2013 | CN103031401A Method for converter steelmaking by LF (Ladle Furnace) refining furnace reducing slag |
| 04/10/2013 | CN103031400A Technology for steelmaking through utilizing magnesium balls prepared from scraps and steel slag |
| 04/10/2013 | CN103031399A Method for converter slagging regulation production |
| 04/10/2013 | CN103031398A Converter smelting end point carbon content forecasting device and forecasting method |
| 04/10/2013 | CN103031390A Method for using tailings after thermal air tight treatment of converter slag |
| 04/10/2013 | CN102312037B Steelmaking and slagging method |
| 04/10/2013 | CN102312036B Steelmaking and slagging method |
| 04/10/2013 | CN102277473B Production process capable of improving qualification rate in flaw detection of medium steel plates |
| 04/10/2013 | CN102071278B Method and device for automatically regulating speed of converter fan |
| 04/03/2013 | CN202853398U On-line baking device of alloy charging car |
| 04/03/2013 | CN202849476U Converter oxygen lance dust keeper |
| 04/03/2013 | CN202849475U Installing structure for water inlet pipe of furnace cap and furnace mouth |
| 04/03/2013 | CN202849474U Furnace cap brick and converter |
| 04/03/2013 | CN202849473U Converter evaporation cooling flue |
| 04/03/2013 | CN103014562A Control method for reducing air holes in surfaces of high-sulfur free-cutting steel casting billets of converter |
| 04/03/2013 | CN103014537A Smelting method of steel used in high speed passenger train hollow axle |
| 04/03/2013 | CN103014536A High-carbon high-chromium stainless bearing steel and preparation method thereof |
| 04/03/2013 | CN103014231A Oxygen supplying method for smelting slag steel and slag iron by electric arc furnace |
| 04/03/2013 | CN103014230A Method for producing low-phosphorus high-carbon steel by duplex hot-adding slag washing for electric furnace |
| 04/03/2013 | CN103014229A master-slave control method for converter tilting frequency conversion system |
| 04/03/2013 | CN103014228A Device and method for resetting three-pivot shaft of converter |
| 04/03/2013 | CN103014227A Dual-purpose gas and steam plugging ring for muzzle of converter oxygen lance |
| 04/03/2013 | CN103014226A Automatically cleaning apparatus of converter oxygen lance bonded slag |
| 04/03/2013 | CN103014225A Consistent-flow velocity heat pipe type waste heat waste steel waste slag recovering method of high-temperature melted slag in converter |
| 04/03/2013 | CN103014224A Splashed slag furnace protection method for vanadium extraction converter |
| 04/03/2013 | CN103014223A Method for prolonging service life of GOR converter bottom |
| 04/03/2013 | CN103014222A Method for reducing smelting cost of high carbon steel and medium carbon steel |
| 04/03/2013 | CN103014221A Method for producing high-aluminum steel plate blanks |
| 04/03/2013 | CN103014220A Method for controlling impurities in high-carbon steel |
| 04/03/2013 | CN103014200A Process applicable to transfer of molten steel slag of converter and optimization of treatment of hot smouldering slag |
| 04/03/2013 | CN102605136B Soft sealing device for converter mouth and fume hood |
| 04/03/2013 | CN102424888B Telescopic shifting converter sublance device and using method thereof |
| 04/03/2013 | CN102312166B Stanniferous ferrite stainless steel and smelting method thereof |
| 04/03/2013 | CN102312044B Method for smelting with electric furnace |
| 04/03/2013 | CN101994052B Nitrogen-containing austenitic alloy |
| 04/03/2013 | CN101611156B Method and device for operating a change converter unit of an oxygen steel-making plant |
| 04/02/2013 | US8409318 Process and apparatus for forming wire from powder materials |
| 03/28/2013 | DE102012007528B3 Insert assembly of electric arc furnace, has sealing element with bristles whose length is three times as that of width of expansion joint |
| 03/28/2013 | DE102009022208B4 Verfahren zum Behandeln von Metallschmelzen A method of treating molten metal |
| 03/28/2013 | DE102008060774B4 Schrottvorwärmungsprozess und Vorrichtungen in Stahlerzeugungsanlagen Schrottvorwärmungsprozess and mechanisms in steel production plants |
| 03/28/2013 | DE102008059179B4 Sonde zur kontinuierlichen Abgasanalyse Probe for continuous gas analysis |
| 03/27/2013 | CN202830075U Furnace floor stirring system of electric arc furnace |
| 03/27/2013 | CN202830074U Tilted sublance driving device |
| 03/27/2013 | CN202830073U Revolving furnace slag blocking structure |
| 03/27/2013 | CN202830072U Detection and control device in tapping process of converter |
| 03/27/2013 | CN202830071U Pull-type slag sliding cart |
| 03/27/2013 | CN202830070U Rotary furnace support ring trunnion support roller device |
| 03/27/2013 | CN202830069U Device for recovering physical sensible heat in converter flue gases |
| 03/27/2013 | CN202823071U Converter semi-dry method dust-cleaning equipment |
| 03/27/2013 | CN103003453A Continuous feeding system to a smelting furnace of pre-heated metal material, in continuous, potentiated and combined form |