| 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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| 01/02/2013 | CN202648436U Oxygen lance positioning and fixing device |
| 01/02/2013 | CN202643738U Steel tapping hole opening/closing device of steelmaking electric arc furnace |
| 01/02/2013 | CN202643737U Steel making device |
| 01/02/2013 | CN202643736U Installation device for newly built converter steel tapping hole brick and seating brick |
| 01/02/2013 | CN202643735U Oxygen lance device |
| 01/02/2013 | CN202643734U Center water-cooling oxygen lance for converters |
| 01/02/2013 | CN202643733U Automatic drilling machine for thermal replacement of converter bottom-blowing air-permeable bricks |
| 01/02/2013 | CN202643732U Antilock slag scraper for oxygen lance |
| 01/02/2013 | CN202643731U Oxygen lance with image collection device |
| 01/02/2013 | CN202643730U Converter oxygen lance buffer device |
| 01/02/2013 | CN202643729U Steel converter permeable brick protective sleeve brick capable of hotly replacing bricks for multiple times |
| 01/02/2013 | CN202643728U Porous core brick for converter capable of conducting quick heat exchange |
| 01/02/2013 | CN202643727U Electric bag combination type dry purification and recovery system for coal gas of converter |
| 01/02/2013 | CN102859307A Fuel-fired furnace and method for controlling combustion in a fuel-fired furnace |
| 01/02/2013 | CN102859008A Waste heat recovery facility for arc furnace for steel making, arc furnace facility for steel making, and waste heat recovery method for arc furnace for steel making |
| 01/02/2013 | CN102859007A Method for determining a time for charging an electric arc furnace with material to be melted, signal processing device, machine-readable program code, storage medium and electric arc furnace |
| 01/02/2013 | CN102853678A Online baking device for alloy feeding trolley |
| 01/02/2013 | CN102851579A Nb-containing micro-alloyed high-carbon steel hot-rolled wire rod and manufacturing method thereof |
| 01/02/2013 | CN102851451A Nitrogen increasing method for molten steel in tapping process |
| 01/02/2013 | CN102851445A Magnesium slagging balls, and application method thereof |
| 01/02/2013 | CN102851443A Method for increasing continuous casting heats of aluminum-deoxidized bearing steel |
| 01/02/2013 | CN102851440A Mounting structure of furnace crown and mouth water inlet tubes |
| 01/02/2013 | CN102851439A Converter coal gas waste heat utilization method |
| 01/02/2013 | CN102851438A Converter coal gas waste heat utilization apparatus |
| 01/02/2013 | CN102851437A Converter vaporization cooling flue |
| 01/02/2013 | CN102851436A Hydraulic control device of second venturi throat turnover plate of converter flue gas purification system |
| 01/02/2013 | CN102851435A Ultra-low-carbon, low-silicon and low-oxygen steel and smelting method thereof |
| 01/02/2013 | CN102851434A 直接熔炼设备 Direct smelting plant |
| 01/02/2013 | CN102851433A Method for controlling content of nitrogen in semi-steel smelted tire cord steel or hard wire steel |
| 01/02/2013 | CN102851432A Method for removing non-metal foreign substances from pipeline steel |
| 01/02/2013 | CN102851431A System and method for detecting operation level of converter operator |
| 01/02/2013 | CN102851430A Maintenance method for converter lining |
| 01/02/2013 | CN102847903A Method for manufacturing low-total-oxygen steel |
| 01/02/2013 | CN102220449B Production method for VN reinforcement bar with yield strength not less than 400MPa |
| 01/02/2013 | CN102021490B X12CrMoWVNbN10-1-1 high-temperature structural steel and production method thereof |
| 01/02/2013 | CN101864543B Ball for air swept mill and processing method thereof |
| 01/02/2013 | CN101772582B Lance for injecting solid material into a vessel |
| 12/27/2012 | WO2012149543A3 External distributor for metallurgical lances |
| 12/27/2012 | WO2012135762A3 Refractory object, glass overflow forming block, and process of forming and using the refractory object |
| 12/27/2012 | US20120326363 Method and device for providing reduction gas from generator gas |
| 12/26/2012 | EP2536859A1 Copper anode refining system and method |
| 12/26/2012 | EP2536520A1 Monitoring device for a sliding closure, a casting tube changer or the like on a metallurgical vessel |
| 12/26/2012 | CN202626235U Equipment for producing steel-making slag former by virtue of steel-making sludge |
| 12/26/2012 | CN202626230U Improved structure of electric furnace body |
| 12/26/2012 | CN202626229U Rotary hearth furnace bottom structure |
| 12/26/2012 | CN202626228U Modified air hole type anti-sticking oxygen lance |
| 12/26/2012 | CN202626227U Device preventing oxygen lance encoding disk connecting gear from disengaging |
| 12/26/2012 | CN202626226U Oxygen lance spray head |
| 12/26/2012 | CN102844133A Monitoring device for a sliding closure, a casting tube changer or the like on a metallurgical vessel |
| 12/26/2012 | CN102839334A 600MPa-level steel for hot-rolled steel bar with ribs and smelting method thereof |
| 12/26/2012 | CN102839256A Smelting method for obtaining high-quality metal liquid |
| 12/26/2012 | CN102839255A Method for rapidly deoxidizing and remaining carbon by secondarily adding melted iron to electric furnace |
| 12/26/2012 | CN102839254A Non-sticky steel converter oxygen lance and manufacturing method thereof |
| 12/26/2012 | CN102839253A Alloy material-feeding rotary apparatus for converter |
| 12/26/2012 | CN102839252A Converter slag fluoride-free fusing agents and method for producing the same |
| 12/26/2012 | CN102839251A Smelting method of low-phosphorous steel |
| 12/26/2012 | CN102127615B Method for smelting in reduction period of electric furnace steel making |
| 12/26/2012 | CN101558170B Arc furnace steelmaking process using palm shell charcoal |
| 12/25/2012 | US8337746 Transferring molten metal from one structure to another |
| 12/20/2012 | WO2012173690A1 Impact pad |
| 12/20/2012 | WO2012171658A1 Device for measuring slag thickness. |
| 12/20/2012 | WO2011151020A8 Process and plant for producing hot metal |
| 12/20/2012 | US20120320941 Waste heat recovery structure for steel making electric arc furnaces, steel making electric arc furnace facility, and waste heat recovery method for steel making electric arc furnaces |
| 12/20/2012 | CA2836993A1 Device for measuring slag thickness |
| 12/20/2012 | CA2834130A1 Impact pad |
| 12/19/2012 | EP2535430A2 Tool steel for high-performance thermoforming tools and production process for same |
| 12/19/2012 | EP2534270A1 Tiltable converter having a pendulum bar suspension |
| 12/19/2012 | CN202613988U Improved high-power electric furnace short net support structure |
| 12/19/2012 | CN202610258U Slag stopping tapping device for converter |
| 12/19/2012 | CN202610257U Floating plug |
| 12/19/2012 | CN102828098A Method for increasing molten steel finishing point manganese content by adding manganese ore outside furnace |
| 12/19/2012 | CN102827995A Installation method of secondary speed reducer of steel converter |
| 12/19/2012 | CN102827994A Tandem-preventing shaft for converter bearing |
| 12/19/2012 | CN102827993A Fuel gas injection type recovery method of sensible heat of convertor coal gas and convertor flue gas |
| 12/19/2012 | CN102827992A Converter flue gas energy recovery method |
| 12/19/2012 | CN102827991A Convertor coal gas recovery method |
| 12/19/2012 | CN102827990A Fluoride-free slagging medium for use in converter and preparation method thereof |
| 12/19/2012 | CN102827989A Production method of low-carbon high-chromium steel |
| 12/19/2012 | CN102827988A Removing method of chromium-containing slag shell of steel ladle |
| 12/19/2012 | CN102825236A Method for removing transverse crack defects of continuous casting billet corner of boron steel |
| 12/19/2012 | CN102294463B Tinkered slag ladle and tinkering method |
| 12/19/2012 | CN102251071B Sliding nozzle brick for slag trap gate valve at converter tap hole |
| 12/19/2012 | CN102191348B Technological method and device for producing high-grade nickel and stainless steel by using oxidized pellet method |
| 12/19/2012 | CN102127616B Method for comprehensively treating iron-containing dust by using electric arc furnace |
| 12/19/2012 | CN102127612B Slag adjusting and furnace protecting method for controlling rising of converter bottom and furnace wall slag deposition |
| 12/19/2012 | CN101993972B Arc furnace steelmaking method |
| 12/19/2012 | CN101139641B Methods of implementing a water-cooling system into a burner panel and related apparatuses |
| 12/18/2012 | US8333819 Combined burner and lance apparatus for electric arc furnaces |
| 12/13/2012 | US20120312124 System for furnace slopping prediction and lance optimization |
| 12/12/2012 | EP2531623A1 Gas purging device |
| 12/12/2012 | CN202595183U Integrated electric furnace steel tapping spout |
| 12/12/2012 | CN202595182U Layout structure of bottom blowing air bricks of small-scale top and bottom combined blown converter |
| 12/12/2012 | CN202595181U Oxygen gun band-type brake safety circuit |
| 12/12/2012 | CN202595180U Slag removing bag |
| 12/12/2012 | CN202595179U Top oxygen blowing system of steel-making converter |
| 12/12/2012 | CN202591604U Integral forming device of ladle mouth |
| 12/12/2012 | CN102816892A Method for smelting metal waste into steel |
| 12/12/2012 | CN102816891A Hoisting method for overhauling and dismantling vaporization flue fixed at first section of converter |
| 12/12/2012 | CN102816890A Automatic control method for point blow operation of oxygen lance of oxygen top-blown convertor |
| 12/12/2012 | CN102816889A Smelting method of pseudo rimmed steel H08A |