| 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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| 08/19/2009 | EP1877715B8 Means for conveying material |
| 08/19/2009 | CN201292377Y Electric-arc steel furnace |
| 08/19/2009 | CN201292376Y Furnace lid hoisting hydraulic cylinder of electric-arc steel furnace |
| 08/19/2009 | CN201292375Y Steel-tapping hole opening/closing mechanism of electric-arc steel furnace |
| 08/19/2009 | CN201292374Y Slag bridge for tapping of revolving furnace |
| 08/19/2009 | CN100529122C Refining material for reductive steel refining and granulation method thereof |
| 08/19/2009 | CN100529110C Ironmaking and steelmaking |
| 08/13/2009 | WO2009076923A3 Method for producing a steel melt containing up to 30% of manganese |
| 08/12/2009 | EP1481101B1 Method and device for the continuous production of steel using metal charge material |
| 08/12/2009 | CN201288205Y Automatic control technology complete set of plant of tap hole gate valve steel slag-blocking system |
| 08/12/2009 | CN201288204Y Five-way rigid rotary receiving apparatus |
| 08/12/2009 | CN201288203Y Slag discharge detecting device of revolving furnace |
| 08/12/2009 | CN201288202Y Tapping hole gate valve robot unit of converter |
| 08/12/2009 | CN101504544A Methods and apparatus for an oxygen furnace quality control system |
| 08/12/2009 | CN101503747A Heating steel slag washing material for converter steel melting, preparation and use method |
| 08/12/2009 | CN101503746A Method for producing boron steel by converter |
| 08/12/2009 | CN101503743A Production process for producing special purpose cast iron by blast furnace and electric furnace duplex weak oxidation process |
| 08/12/2009 | CN100526478C Slag removing and furnace protecting agent |
| 08/12/2009 | CN100526000C Combination method mounting technique for ultra-large type steel converter |
| 08/12/2009 | CN100525953C Technique for preventing surface crack of continuous casting steel billet for petroleum casing |
| 08/06/2009 | WO2009095942A1 Iron metallurgical plant |
| 08/06/2009 | WO2009095457A1 Control method for melting a metal charge and weighing device used in said method |
| 08/06/2009 | WO2009095396A1 Method for determining a radiation measurement for thermal radiation, arc furnace, a signal processing device, programme code and storage medium for carrying out said method |
| 08/06/2009 | WO2009095292A1 Method for operating an arc furnace comprising at least one electrode, regulating and/or control device, machine-readable programme code, data carrier and arc furnace for carrying out said method |
| 08/06/2009 | US20090194919 Direct smelting plant |
| 08/06/2009 | US20090194918 Gas supply system for a metallurgical furnace and method for operating this system |
| 08/06/2009 | US20090193936 Methods and apparatus for an oxygen furnace quality control system |
| 08/05/2009 | CN201285293Y Testing gun and testing system for smelting |
| 08/05/2009 | CN101497968A Steel for microalloying lorry axle and technique for producing the same |
| 08/05/2009 | CN101497965A Steel for cutting edge of shovel of loader and digger and production method thereof |
| 08/05/2009 | CN101497935A Mounting and locating method for changeable air brick |
| 08/05/2009 | CN101497934A Heating slag washing material for converter steel melting, preparation and use method thereof |
| 08/05/2009 | CN100523251C High-cleanliness steel and processes for producing the same |
| 08/05/2009 | CN100522417C Converter process of producing continuously cast circular steel billet for high pressure boiler pipe |
| 07/30/2009 | US20090189322 Post-combustion lance with internal support |
| 07/29/2009 | EP2082068A1 Method for operating a converter |
| 07/29/2009 | CN201280570Y Dross extractor for slag passage |
| 07/29/2009 | CN201280569Y Slide rail used for internal slag pushing equipment in convertor tapping furnace |
| 07/29/2009 | CN201280568Y Trough shunting and regulating mechanism |
| 07/29/2009 | CN101492756A Full dry purification and residual heat utilization equipment and method for converter gas |
| 07/29/2009 | CN101492755A Control and obstruction-proof method for mushroom head gas flow |
| 07/29/2009 | CN100519770C Revolving furnace tap hole sliding gate slag-fending valve apparatus |
| 07/29/2009 | CN100519769C Boron steel producing converter smelting process |
| 07/23/2009 | WO2009091558A1 Submerged combustion melter |
| 07/23/2009 | WO2009090226A2 Process for preparing a foaming slag former, product and use thereof |
| 07/23/2009 | WO2009089907A1 Process for preparing a foaming slag former, product and use thereof. |
| 07/23/2009 | CA2712064A1 Process for preparing a foaming slag former, product and use thereof |
| 07/22/2009 | EP2080972A1 Combined burner and lance apparatus for electric arc furnaces |
| 07/22/2009 | EP1749109B1 Refining molten metal |
| 07/22/2009 | CN201276579Y Air curtain slag-removing device for tapping of converter |
| 07/22/2009 | CN101490284A Direct smelting vessel and cooler therefor |
| 07/22/2009 | CN101487073A Adjustable ultra high power coherent jet oxygen lance nozzle for converter steel melting |
| 07/22/2009 | CN101487072A Multifunctional circular seam type gas supply element for steel melting |
| 07/22/2009 | CN101487071A Method for regenerating metal furnace cinder composite mushroom and shimming permeable furnace bottom |
| 07/22/2009 | CN101487070A Method for improving combined blown converter campaign length by metal furnace cinder composite mushroom |
| 07/22/2009 | CN101487069A Foam slag inhibitor for converter |
| 07/22/2009 | CN100516240C Auxiliary-gun clamping-centering-locating device for revolving furnace steel production |
| 07/21/2009 | US7563405 System of gas and/or gas and powders injection in liquid metals through rotary refractory lance |
| 07/21/2009 | US7563303 Low cost; for slags |
| 07/16/2009 | WO2009087142A1 Combined burner and lance apparatus for electric arc furnaces |
| 07/16/2009 | CA2711421A1 Combined burner and lance apparatus for electric arc furnaces |
| 07/15/2009 | EP1423227B1 Riser(s) size reduction and/or metal quality improving in gravity casting of shaped products by moving electric arc |
| 07/15/2009 | CN201272819Y Self-adapting seat mechanism of converter |
| 07/15/2009 | CN201272818Y Coupling structure of converter slag-resisting apron plate |
| 07/15/2009 | CN201272817Y Converter lining structure |
| 07/15/2009 | CN101481747A Final slag modifier for smelting steel in converter and use method thereof |
| 07/15/2009 | CN100513587C Electric furnace smelting method for high-grade pipe line steel |
| 07/09/2009 | US20090173187 Manufacture of Ferroalloys |
| 07/08/2009 | EP1532282B8 Metallurgical slag |
| 07/08/2009 | CN201268711Y Side brick blowing structure of vanadium recovering converter body |
| 07/08/2009 | CN101476016A Stainless steel smelting method |
| 07/08/2009 | CN101476015A AOD converter flue gas waste heat recovery apparatus |
| 07/08/2009 | CN101476014A Whole process dynamic monitoring method for converter steel melting |
| 07/08/2009 | CN101476013A Converter smelting process using dephosphorization agent |
| 07/08/2009 | CN100510110C Converter body drum-type skirt cover |
| 07/08/2009 | CN100510109C Method for producing an alloy molten metal and associated production plant |
| 07/07/2009 | US7556765 Tapping pipe |
| 07/02/2009 | US20090166937 Direct smelting plant |
| 07/02/2009 | US20090165597 Apparatus and Methods for the Production of Metal Compounds |
| 07/02/2009 | DE202009002952U1 Vorrichtung zum Starten von Sauerstoffbrennlanzen Apparatus for starting of oxygen burning lances |
| 07/02/2009 | DE102007058448A1 Vorrichtung zur Beschickung eines Ofens An apparatus for charging a furnace |
| 07/02/2009 | DE102007058125A1 Metallrückstände und Kohlenstoffträger enthaltender Formkörper Metal residues and carbon carriers containing moldings |
| 07/01/2009 | EP1877715B1 Means for conveying material |
| 07/01/2009 | EP1765971A4 Method and apparatus for carrying out a metallurgical process |
| 07/01/2009 | CN201265024Y Disassembly and assembly apparatus of converter tilting speed reducer |
| 07/01/2009 | CN201265023Y Key hole guide apparatus for steel melting converter tilting equipment hole-shaft assembly |
| 07/01/2009 | CN201265022Y Furnace cinder sampling apparatus for converter sublance composite probe |
| 07/01/2009 | CN101473050A Pressure control in direct smelting process |
| 07/01/2009 | CN101473049A Pressure control in direct smelting process |
| 07/01/2009 | CN101473048A Direct smelting plant with waste heat recovery unit |
| 07/01/2009 | CN101469356A Steel melting method for reducing nitrogen content in steel by converter tapping feeble deoxidization |
| 07/01/2009 | CN100507017C Mother liquid foam slag generating method for smelting stainless steel with electric furnace and dephosphorization melted iron |
| 07/01/2009 | CN100507016C Air curtain skimming device for steel-making converter |
| 07/01/2009 | CN100507015C Discharging hole for molten metal in molten metal container, method of operating converter with the discharging hole, and sleeve exchanging device at discharging hole of molten metal |
| 07/01/2009 | CN100507014C Method for producing low carbon steel |
| 07/01/2009 | CN100507010C Cooling plate for metallurgic furnaces |
| 06/30/2009 | US7553793 Method and system for recovering catalyst for fuel cell |
| 06/30/2009 | US7553383 Method for fabricating a martensitic steel without any melting |
| 06/30/2009 | US7553351 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |
| 06/30/2009 | CA2315502C Control of molten metal level in a direct smelting vessel |