| 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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| 08/31/2010 | US7785528 Guide system for signal lines, device for measuring temperatures and/or concentrations, and use of the system and device |
| 08/26/2010 | WO2010094464A2 Temperature measuring device |
| 08/26/2010 | WO2010094259A1 Device for preventing vortices in metallurgical vessels |
| 08/26/2010 | US20100212457 Producing metal and carbon dioxide with hydrogen recycle |
| 08/26/2010 | DE102009009740A1 Vorrichtung zur Strudelvermeidung in metallurgischen Gefäßen Device for vortex avoidance in metallurgical vessels |
| 08/25/2010 | CN201561661U Natural circulating device of converter movable fume cover |
| 08/25/2010 | CN201560209U Connector of furnace case and support ring of revolving furnace |
| 08/25/2010 | CN101812566A Processing method for smelting die steel through oxide reduction |
| 08/25/2010 | CN101812565A Furnace cap water-cooling device for converter |
| 08/25/2010 | CN101812564A Method for installing converter in plug-in mode |
| 08/25/2010 | CN101812563A High-temperature dust-removing device for processing converter gas |
| 08/25/2010 | CN101812562A Safe and high-efficiency recovery method for converter gas |
| 08/25/2010 | CN101811076A Composite toothed plate and casting method thereof |
| 08/25/2010 | CN101429585B Positioning method and apparatus for slag stop at time of slag-stopping pouring of revolving furnace and special-purpose slag stop therefor |
| 08/25/2010 | CN101392303B Recovery and utilization method of useful element in free-cutting steel refining slag |
| 08/25/2010 | CN101285111B Sublance elastic guiding trolley |
| 08/24/2010 | US7780906 Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 08/18/2010 | CN201553752U Converter steel gate |
| 08/18/2010 | CN1830230B Direct current arc furnace |
| 08/18/2010 | CN101805901A Application of metal-clad anti-sticking composite material to metallurgical water cooling equipment |
| 08/18/2010 | CN101805874A Low-carbon Mn-Cr steel for engine camshaft and manufacturing method thereof |
| 08/18/2010 | CN101805873A Low-cost and high-strength steel for automobile crossbeam and manufacturing method thereof |
| 08/18/2010 | CN101805816A Ladle slag activator and application thereof |
| 08/18/2010 | CN101805814A Oxygen lance spray nozzle for converter |
| 08/18/2010 | CN101804501A Ground assembling and welding integral installation and construction technology for vaporization-cooling chimney |
| 08/12/2010 | WO2010088972A1 Method and device for controlling a carbon monoxide output of an electric arc light oven |
| 08/12/2010 | WO2010088740A1 A direct smelting process and apparatus |
| 08/12/2010 | CA2751198A1 Process and apparatus for controlling a carbon monoxide emission of an electric arc furnace |
| 08/11/2010 | EP2216110A2 Impulse coiling with inert gas in BOF and AOD converter process |
| 08/11/2010 | CN201548065U Multifunctional spray gun for steel making of electric furnace |
| 08/11/2010 | CN201548058U Support claw for steelmaking with electric furnace |
| 08/11/2010 | CN201545876U Steam heat accumulator for converter vacuum melting |
| 08/11/2010 | CN201545875U Simple tool for replacing steel tapping hole |
| 08/11/2010 | CN201545874U Automatic control device for rocking furnace of oxygen bottom-blowing smelting furnace |
| 08/11/2010 | CN201545873U Cooling structure of steel-making converter |
| 08/11/2010 | CN201545872U Composite slag stopper |
| 08/11/2010 | CN201545871U Converter mouth-dedicated oxygen lance sprayer |
| 08/11/2010 | CN201545870U Automatic converter oxygen lance slag scraper |
| 08/11/2010 | CN201545869U Bottom-blow porous brick of top and bottom combined blown converter |
| 08/11/2010 | CN201543351U Dust removing device for steel making of electric furnace |
| 08/11/2010 | CN101798660A Method for refining, metamorphosing and casting cold roll steel by casting instead of forging |
| 08/11/2010 | CN101798616A Arc furnace steel-making method capable of effectively preventing steel part surface from cracking |
| 08/11/2010 | CN101798615A Electric transmission control method of tilting of rotating furnace |
| 08/11/2010 | CN101798614A Composite dual-spherical supporting and connecting device |
| 08/11/2010 | CN101798613A On-line quick change method of three-point spherical support of large-size converter |
| 08/11/2010 | CN101798612A Process for washing, pre-desulfurizing and refining tapping steel slag of converter |
| 08/11/2010 | CN101798611A Freon-free slagging agent for rotating furnace |
| 08/11/2010 | CN101797630A Modified high-speed steel roller and preparation method thereof |
| 08/11/2010 | CN101525718B Alloying process for stably and precisely controlling molybdenum content in steel |
| 08/11/2010 | CN101413044B Alloy addition method for improving yield of ferromolybdenum |
| 08/11/2010 | CN101403071B High-alloy hot work steel producing method |
| 08/11/2010 | CN101275173B Control method for equilibrium operation of converter dust-removing flue cooling fan |
| 08/11/2010 | CN101008041B Welding-free high temperature-resistant coating oxygen blowpipe |
| 08/05/2010 | DE102009049896A1 Impulsspülung mit Inertgas beim BOF- und AOD-Konverterprozess Pulse flushing with inert gas at the BOF and AOD converter process |
| 08/04/2010 | EP2213753A1 Method of production of a slag-forming compound for secondary steel refining in a ladle or ladle furnace |
| 08/04/2010 | CN201540033U Oxygen lance quick change device |
| 08/04/2010 | CN201538786U Connecting mechanism for secondary reducer and torsion bar of converter tilting device |
| 08/04/2010 | CN201538785U Tapping hole for tapping sliding nozzle of converter to push off slag |
| 08/04/2010 | CN201538784U Improvement structure of water/gas pipeline connection inside trunnion ring of converter |
| 08/04/2010 | CN101796411A Indirect determination of the waste gas rate for metallurgical processes |
| 08/04/2010 | CN101792889A Medium-carbon multi-alloying wear-resistant hot rolling round steel and production method thereof |
| 08/04/2010 | CN101792885A Hot-rolled round steel for high carbon manganese and chrome grinding ball and method for producing same |
| 08/04/2010 | CN101792884A Steel with underrelaxation and hydrogen corrosion resistance for high-speed railway prestressed pull rod and production method thereof |
| 08/04/2010 | CN101792844A Dry recovery method of partial molten iron-steelmaking coal gas of arc furnace |
| 08/04/2010 | CN101792843A Production process of Nb-containing mill coil for automobile |
| 08/04/2010 | CN101792842A Converter taphole filler-replacing method |
| 08/03/2010 | US7767137 Sealing apparatus for a slag door of a metallurgical furnace |
| 08/03/2010 | US7767136 Apparatus for the combustion of gas exiting from a furnace, for the preheating of scraps entering the furnace itself and related process |
| 08/03/2010 | CA2651258C Refractory nozzle |
| 07/29/2010 | WO2010022703A3 Method for controlling foamed slag in a stainless melt in an electric arc furnace |
| 07/28/2010 | EP2210959A1 Process for producing molten iron |
| 07/28/2010 | CN201535631U 一种双流氧枪喷头 One kind of oxygen lance nozzle Shuangliu |
| 07/28/2010 | CN201535629U Preheating drum-type feeding conveyer |
| 07/28/2010 | CN201534861U 转炉脱磷氧枪喷头 Dephosphorization oxygen lance nozzle |
| 07/28/2010 | CN201534860U 转炉支撑结构 Converter supporting structure |
| 07/28/2010 | CN201534859U 炼钢转炉汽化冷却烟道炉口段叉形三通水分配装置 BOF steelmaking furnace flue opening paragraph evaporative cooling water distribution system Fork Tee |
| 07/28/2010 | CN1763231B Method of producing metallic iron |
| 07/28/2010 | CN101787497A Prepared furnace charge and processing technology thereof |
| 07/28/2010 | CN101787496A Wear resistant cast steel and preparation method thereof |
| 07/28/2010 | CN101787492A Manufacturing method of high quality and large size mandril blank |
| 07/28/2010 | CN101787484A Low-silicon cold rolled precision strip steel for copper-lead bearing steel back and production method thereof |
| 07/28/2010 | CN101787412A Bottom dusting electrical furnace steelmaking process |
| 07/28/2010 | CN101787411A Under-converter track replacement method |
| 07/28/2010 | CN101787410A Indirect fume temperature regulator |
| 07/28/2010 | CN101787409A One-time dedusting water purification system for steelmaking |
| 07/28/2010 | CN101787403A Short process production technique for preparing casting of wind power generation equipment |
| 07/28/2010 | CN101503747B Heating steel slag washing material for converter steel melting, preparation and use method |
| 07/28/2010 | CN101348845B Method for smelting titanium slag with electric stove |
| 07/28/2010 | CN101333578B Method for producing high carbon steel by high-catching carbon method |
| 07/28/2010 | CN101245401B Revolving furnace sublance probe clamper device |
| 07/27/2010 | CA2351792C Method and apparatus for improved process control in combustion applications |
| 07/22/2010 | DE102009001646B3 Steel production apparatus comprises electric arc furnace for cyclically melting crushed scrap iron portions, unit for current generation from the thermal energy in hot process exhaust gas of the electric arc furnace, and shredder plant |
| 07/21/2010 | EP2207905A1 Method for producing stainless steel using direct reduction furnaces for ferrochrome and ferronickel on the primary side of a converter |
| 07/21/2010 | CN201532322U Device for smelting and sampling pipeline steels for converter |
| 07/21/2010 | CN201532122U Oxygen lance spacing and quick adjusting device |
| 07/21/2010 | CN201530838U Converter water-cooling multiple blowing multifunctional swivel joint |
| 07/21/2010 | CN201530837U CAS-OB dedusting device |
| 07/21/2010 | CN1784500B Gas bubbling element and corresponding gas flushing device |
| 07/21/2010 | CN101781696A Spherical hinge disc suspension type connection device of converter ring and furnace shell |
| 07/21/2010 | CN101781695A System for integrated recovery and utilization of afterheat of converter gas |