| 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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| 07/04/2012 | CN102534092A Method for protecting top-bottom combined blown converter |
| 07/04/2012 | CN102534091A Heat generating agent for steel making and production method thereof |
| 07/04/2012 | CN102527940A Casting process for upper pendulums and lower pendulums of light-rail steel cast supports |
| 07/04/2012 | CN101988137B Exothermic agent for converter molten iron with low heating value |
| 07/04/2012 | CN101984087B Slag liquefaction heating process and device |
| 07/04/2012 | CN101967610B High carbon high silicon martensite stainless steel billet and preparation method thereof |
| 07/04/2012 | CN101892345B Converter coal gas dry-method dedusting system and using method thereof |
| 07/04/2012 | CN101892344B Dry dedusting system for converter gas and using method thereof |
| 07/04/2012 | CN101880745B Oxygen gun water-cooling protective sleeve and method thereof |
| 07/04/2012 | CN101775462B Micro powder graphite carburant, preparation method and use method thereof |
| 07/04/2012 | CN101748239B Protecting device for assembly and disassembly of converter sublance probe |
| 07/04/2012 | CN101743330B Process for producing molten iron |
| 07/04/2012 | CN101644538B Electric stove metal balk cargo vibration material delivering and airflow dynamic packing device |
| 07/04/2012 | CN101619371B Method for recovering vanadium, titanium and iron from vanadium titanium magnetite |
| 07/04/2012 | CN101503743B Production process for producing special purpose cast iron by blast furnace and electric furnace duplex weak oxidation process |
| 07/03/2012 | CA2521689C Direct smelting plant and process |
| 06/28/2012 | DE112009004355T5 Vorrichtung zum Einblasen von Gas in ein Gefäß An apparatus for injecting gas into a vessel |
| 06/28/2012 | DE102011014323A1 Mehrfach gesicherte Koppelvorrichtung für Sauerstofflanzen Multiple secure coupling device for oxygen lances |
| 06/27/2012 | EP2132344B1 Method and apparatus for the supply of hot direct reduced iron for multiple uses |
| 06/27/2012 | CN102517522A Steel for hydraulic piece and manufacturing method for steel |
| 06/27/2012 | CN102517521A MnCr carburized gear steel and its production method |
| 06/27/2012 | CN102517419A Smelting continuous casting method for high carbon steel |
| 06/27/2012 | CN102517416A Efficient dephosphorizing agent based on refined steel ladle after-cast recovery slag for revolving furnace |
| 06/27/2012 | CN102517415A Method for reducing nitrogen content in steel during high-carbon steel production |
| 06/27/2012 | CN101935737B Device for integrally detecting height of oxygen lance height and looseness and tightness of steel wire rope of oxygen gun |
| 06/27/2012 | CN101736203B High-strength weather-resisting hot rolled steel strip and manufacturing method thereof |
| 06/27/2012 | CN101723692B High strength nanophase ceramic composite insulation material and preparation method thereof |
| 06/27/2012 | CN101671761B Vaporization cooling device |
| 06/27/2012 | CN101597669B Hot metal dephosphorization method by using top-bottom combined blown converter under the condition of slag splashing and converter protecting |
| 06/27/2012 | CN101568651B Injection method for inert gas |
| 06/27/2012 | CN101541981B Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a ddd installation |
| 06/26/2012 | US8206642 Pivoting slag door |
| 06/21/2012 | WO2012080496A1 Ceramic bottom lining of a blast furnace hearth |
| 06/21/2012 | WO2012079415A1 Steel used for railway locomotive axle and the manufacturing method thereof |
| 06/20/2012 | EP2464940A1 Waste heat system |
| 06/20/2012 | EP2464757A1 Lance for a smelting vessel system or a metallurgical reaction vessel |
| 06/20/2012 | CN202279836U 一种烟气密封装置 One kind of smoke sealing device |
| 06/20/2012 | CN202279835U Combined type nitrogen seal cap for oxygen lance |
| 06/20/2012 | CN202279834U Converter furnace repairing trolley |
| 06/20/2012 | CN202279833U Simple converter flue transition carriage |
| 06/20/2012 | CN1826417B Method of charging fine-grained metals into an electric-arc furnace and electric-arc furnace |
| 06/20/2012 | CN102505063A Composite probe of auxiliary gun |
| 06/20/2012 | CN102505062A Converter rapid desilicification and dephosphorization pretreatment method |
| 06/20/2012 | CN102503446A Electric arc furnace liner repairing material and method adopting material for repairing |
| 06/20/2012 | CN102010927B Integral hydraulic jacking inverted construction method of large converter |
| 06/20/2012 | CN101857942B Hot rolled steel plate with 590MPa-level tensile strength and production method thereof |
| 06/19/2012 | US8202476 Heat exchanger system used in steel making |
| 06/14/2012 | WO2012076921A1 Apparatus for conveying and pre-heating a metal charge for a melting plant and connected method |
| 06/14/2012 | WO2012076920A1 Apparatus for conveying and pre-heating a metal charge for a melting plant and connected method |
| 06/14/2012 | WO2012076917A1 Apparatus for pre-heating a metal charge for a melting plant and connected method |
| 06/14/2012 | WO2012075980A1 Lance for a furnace crucible system or a metallurgical reaction vessel |
| 06/14/2012 | US20120144955 Method and apparatus for carrying out a metallurgical process |
| 06/13/2012 | CN202274749U Bulk material feeding device for revolving furnace |
| 06/13/2012 | CN202272912U 一种大通径高压换向阀 One kind of large diameter high pressure valve |
| 06/13/2012 | CN202272911U 一种测量转炉内衬侵蚀厚度的装置 An apparatus for measuring the thickness of the converter lining erosion |
| 06/13/2012 | CN202272910U 一种结合拆炉机清理转炉残渣的工具 One binding machine to clean up the converter furnace residue demolition tools |
| 06/13/2012 | CN202272909U 一种转炉挡渣板 One kind of converter slag board |
| 06/13/2012 | CN202272908U 转炉底枪保护罩 Bottom converter gun shield |
| 06/13/2012 | CN202272907U 转炉炉体挡渣板支架 Converter furnace slag plate bracket |
| 06/13/2012 | CN202272906U 多孔式转炉托圈内筋板 Perforated circle ribs trunnion |
| 06/13/2012 | CN202272905U 转炉一次干法除尘及余热回收系统 BOF once dry dust and waste heat recovery system |
| 06/13/2012 | CN202272904U 转炉煤气回收区域风向标 Converter gas recovery area weathervane |
| 06/13/2012 | CN202272903U 转炉余热蒸汽补燃式发电系统 Kiln-fired heat recovery steam generation systems complement |
| 06/13/2012 | CN202272902U 转炉活动烟罩升降同步装置 Synchronous converter activity hood lifting device |
| 06/13/2012 | CN102492802A Converter slag melting audio signal digital transmission method and transmission device thereof |
| 06/13/2012 | CN102492801A Method for mounting spatial portal frame structure on top of tower of converter bay in steelshop |
| 06/13/2012 | CN102031328B Loading method of converter |
| 06/13/2012 | CN101684509B Method for preventing converter from dumping steel |
| 06/13/2012 | CN101649370B Method for smelting first batch after fettling of converter |
| 06/13/2012 | CN101586205B Method for producing low-alloy peritectic steel by medium-thickness slab caster |
| 06/07/2012 | WO2012074186A1 Slag discharge door device for an electric furnace |
| 06/06/2012 | EP2461126A1 Arc melting equipment and molten metal manufacturing method using arc melting equipment |
| 06/06/2012 | EP2460895A2 Metallurgical container, in particular electric arc furnace |
| 06/06/2012 | DE102010053647A1 Lanze für eine Schmelzgefäßanlage oder ein metallurgisches Reaktionsgefäß Lance for a melting pot plant or a metallurgical reaction vessel |
| 06/06/2012 | CN202266629U 一种转炉倾动减速器缓冲装置 One kind of converter tilting reducer buffer device |
| 06/06/2012 | CN102485919A Method for installing dummy shaft of converter connecting rod suspension system |
| 06/06/2012 | CN102485918A Method for smelting stainless steel by top and bottom combined blown converter |
| 06/06/2012 | CN102041346B Method for automatic bottom blowing control of converter |
| 06/06/2012 | CN102010926B Process for smelting and producing medium high carbon steel |
| 06/06/2012 | CN101602612B Gunning material formula for converter |
| 05/31/2012 | WO2012036488A3 Method for producing ferrous powder |
| 05/30/2012 | CN202254992U Integral heat pipe gas temperature regulator |
| 05/30/2012 | CN202254874U Intelligent dust-removing fan system of steel refining furnace |
| 05/30/2012 | CN202246736U Device for driving furnace door to ascend and descend |
| 05/30/2012 | CN202246735U Intelligent detecting device for liquid surface of converter steel water |
| 05/30/2012 | CN202246734U Emergency driving device |
| 05/30/2012 | CN202246733U Oxygen lance nozzle with vertical insertion port connection between forged copper and cast copper |
| 05/30/2012 | CN202246732U Flue gas cooling device for converter |
| 05/30/2012 | CN202246731U Waste heat recovery and cloth bag dust removing system |
| 05/30/2012 | CN202239612U Brick cup at molten steel outlet |
| 05/30/2012 | CN202238849U Steel-making secondary dedusting system |
| 05/30/2012 | CN1688721B Metallurgical vessel |
| 05/30/2012 | CN102478071A 一种剖分轴承 One kind of split bearings |
| 05/30/2012 | CN102477469A 一种真空感应炉炼钢的方法 A vacuum induction furnace steelmaking methods |
| 05/30/2012 | CN102212646B Carbon blowing technique for electric furnace smelting |
| 05/30/2012 | CN102071281B Converter gas dry method bag type recovering and purifying system and process |
| 05/30/2012 | CN101899625B Ferrite stainless steel and manufacturing method thereof |
| 05/30/2012 | CN101871081B Steel for low-steel-grade continuous oil pipe and manufacturing method thereof |
| 05/30/2012 | CN101792844B Dry recovery method of partial molten iron-steelmaking coal gas of arc furnace |
| 05/30/2012 | CN101736206B Manufacturing method of coking cart heat-resisting and wear-resisting lining plate |