| 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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| 07/18/2012 | CN102586536A Converter steel-making final slag modifier utilizing magnesite tailings to serve as raw material and production method thereof |
| 07/18/2012 | CN102586535A Static-dynamic automatic feeding method in converter smelting process |
| 07/18/2012 | CN102586531A Method for producing molten iron by using powered mine and non-coking coal |
| 07/18/2012 | CN101993987B Method for producing extremely thick steel plate with low alloy and high intensity by continuously casting plate blank |
| 07/18/2012 | CN101993968B Converter molten steel temperature control method |
| 07/18/2012 | CN101979671B Method for baking refractory material lining of combined blown converter |
| 07/18/2012 | CN101948979B Method for producing industrial pure iron |
| 07/18/2012 | CN101942597B Production method of gear steel |
| 07/18/2012 | CN101942539B Method for smelting molten iron to form rerolled steel by oxygen blowing blast furnace |
| 07/18/2012 | CN101818264B Method for treating zinc-iron-containing dust and sludge |
| 07/18/2012 | CN101688261B Improvements in the production of ferro-alloys |
| 07/18/2012 | CN101684510B New method for modifying top dross in steel ladle of rimmed steel |
| 07/18/2012 | CN101654765B Gap-free hot-rolled steel strip |
| 07/18/2012 | CN101619373B Method for sealing external orifice of steel-tapping hole of converter |
| 07/17/2012 | US8221675 Direct smelting vessel and cooler therefor |
| 07/17/2012 | US8221521 Method of degassing molten metal |
| 07/12/2012 | WO2012093280A2 Systems and methods for recycling steelmaking converter exhaust residue and products made thereby |
| 07/12/2012 | CA2822205A1 Systems and methods for recycling steelmaking converter exhaust residue and products made thereby |
| 07/11/2012 | EP2038434B1 Direct smelting vessel and cooler therefor |
| 07/11/2012 | CN202322903U 一种导向式密封装置 One kind of guide seal device |
| 07/11/2012 | CN202322902U 一种转炉闸阀更换用自动旋转螺母装置 One kind of converter valve replacement device automatically swivel nut |
| 07/11/2012 | CN202322901U Novel oxygen lance of non-stick steel converter |
| 07/11/2012 | CN202322900U Oxygen lance of non-stick steel converter |
| 07/11/2012 | CN202322899U 炼钢转炉汽包智能供水装置 Converter steel drum Intelligent water supply device |
| 07/11/2012 | CN202322898U 副枪复合探头 Sublance complex probe |
| 07/11/2012 | CN202322897U 转炉高温熔融渣等流速热管式余热废钢废渣回收装置 BOF slag and other high-temperature melt flow rate of heat pipe heat recovery scrap waste |
| 07/11/2012 | CN102575307A Device for tipping a metallurgical melt vessel, metallurgical melting arrangement, and method using such a melting arrangement |
| 07/11/2012 | CN102575306A Top lance for refining and method for refining molten iron using same |
| 07/11/2012 | CN102560277A Preparation method of steel bar with corrosion resistance used for natural gas transportation pipeline |
| 07/11/2012 | CN102560252A Steel for medium-carbon Cr alloying connecting rod and manufacturing method of steel |
| 07/11/2012 | CN102560082A Method of using desulphurization slag powder formed balls as raw material for electric furnace steelmaking |
| 07/11/2012 | CN102559994A Method for drying electric furnace by using molten iron |
| 07/11/2012 | CN102559993A Device and method for stirring metallic molten pool by using pulsating gas |
| 07/11/2012 | CN102559992A Vehicle-mounted slag-raking machine for converter, and use method |
| 07/11/2012 | CN102559991A State transition device capable of achieving uninterrupted heat energy output and utilization for steelmaking converter |
| 07/11/2012 | CN102559990A Sonar slagging analysis apparatus and method based on flue sound picking |
| 07/11/2012 | CN102559989A Special waste steel bucket for clearing converter mouth |
| 07/11/2012 | CN102559988A Tinder trapping and heat energy recovery device for flue gas of steelmaking converter |
| 07/11/2012 | CN102559987A Dust-falling device for converter escaped flue gas |
| 07/11/2012 | CN102559986A Method for single-stage vanadium extraction in same converter |
| 07/11/2012 | CN102559985A Method of smelting low-phosphorus steel through converter |
| 07/11/2012 | CN102559984A Method for producing high carbon steel through double-slag high drawing carbon tapping |
| 07/11/2012 | CN102559983A Method for prevention of nitrogen increase in molten steel during steel tapping from a converter |
| 07/10/2012 | US8216954 Taphole fill material and method for manufacturing the same |
| 07/10/2012 | US8216507 Post-combustion lance with internal support |
| 07/10/2012 | CA2586789C Production of stainless steel of aisi 4xx grade ferritic steel in an aod converter |
| 07/05/2012 | WO2012089188A2 Multiply secured coupling device for oxygen lances |
| 07/05/2012 | US20120167718 Method for scooping-up slag from liquid iron |
| 07/05/2012 | DE102010064357A1 Verfahren zur pyrometallurgischen Behandlung von Metallen, Metallschmelzen und/oder Schlacken A process for the pyrometallurgical treatment of metals, molten metals and / or slag |
| 07/04/2012 | EP2471959A1 Arc melting facility, and method for manufacturing molten metal using the arc melting facility |
| 07/04/2012 | CN202304439U 一种改进的转炉下料溜管 Under an improved converter feed chute |
| 07/04/2012 | CN202297668U 一种转炉炼钢传动控制系统中氧枪事故提升控制系统 Converter steelmaking drive control system to improve the control system oxygen gun accident |
| 07/04/2012 | CN202297667U 一种炼钢转炉出钢口扩孔器 One kind of steel converter tap hole reamer |
| 07/04/2012 | CN202297666U 一种钢水液位测枪调节装置 Molten steel level measurement gun control apparatus |
| 07/04/2012 | CN202297665U 一种改进的水冷氧枪喷头 An improved water-cooled oxygen lance nozzle |
| 07/04/2012 | CN202297664U 测量炉膛的专用工具 Special tools to measure the furnace |
| 07/04/2012 | CN202297663U Auxiliary device for maintenance and pressure testing of oxygen lance |
| 07/04/2012 | CN202297662U 改进的转炉氧枪 Improved Oxygen Lance |
| 07/04/2012 | CN202297661U 一种预埋式转炉透气砖 One kind of embedded type air brick converter |
| 07/04/2012 | CN202297660U 一种硫化纳长短转炉耐火砖 One cure satisfied length converter firebrick |
| 07/04/2012 | CN202297659U 转炉一次烟气干法除尘系统 BOF once dry flue gas dust removal system |
| 07/04/2012 | CN202297658U 一种提钒转炉一次烟气干法除尘系统 One kind of vanadium converter once dry flue gas dust removal system |
| 07/04/2012 | CN202297657U 转炉煤气干法除尘用煤气冷却设备 Dry dust converter gas with a gas cooling equipment |
| 07/04/2012 | CN202297656U 一种转炉烟气辐射式余热锅炉回收系统 One kind of converter gas recovery system radiant heat boiler |
| 07/04/2012 | CN202297655U Dust collecting cover for converter opening of converter |
| 07/04/2012 | CN202297654U 一种转炉煤气干法除尘用的蒸发冷却塔 One kind of converter gas dry dust with evaporative cooling tower |
| 07/04/2012 | CN202297653U 转炉煤气干法除尘用煤气冷却器 Converter gas with a gas cooler dry dust |
| 07/04/2012 | CN202297652U Swivel joint device specially used for converter bottom blowing process |
| 07/04/2012 | CN202291395U 一种吹气出钢水口座砖 One kind of blowing out the steel outlet Block Brick |
| 07/04/2012 | CN102538497A Method and device for recovery and full-effect utilization of flue gas thermal energy of steel converter |
| 07/04/2012 | CN102538496A Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor |
| 07/04/2012 | CN102538475A Novel assembling method for slag blocking target |
| 07/04/2012 | CN102534398A Ferroboron-containing alloy wear-resistant material and preparation method thereof |
| 07/04/2012 | CN102534362A Preparation technology for fine-grained steel 510L |
| 07/04/2012 | CN102534198A Method for pelletizing refined iron powder extracted from steel slag for converter steel making |
| 07/04/2012 | CN102534120A Smelting process for production of super-low sulphur steel |
| 07/04/2012 | CN102534116A Slag modifier and preparation method and application thereof |
| 07/04/2012 | CN102534115A Electric furnace high-efficiency metallurgical complexing agent and production process |
| 07/04/2012 | CN102534114A Tilting rotary refining electric furnace |
| 07/04/2012 | CN102534113A Electromagnetic induction furnace iron ore one-step steel smelting method |
| 07/04/2012 | CN102534112A Total-converting steelmaking method of electric furnace |
| 07/04/2012 | CN102534111A Combustion settling chamber for electric furnace steel making |
| 07/04/2012 | CN102534110A Access door |
| 07/04/2012 | CN102534109A Slag blocking device and method for steel-tapping hole of converter |
| 07/04/2012 | CN102534108A Oxygen lance transmission device of oxygen top blown steel-making converting furnace |
| 07/04/2012 | CN102534107A Overhauling position lance adjusting device for converter oxygen lance |
| 07/04/2012 | CN102534106A Embedded protective brick for circular seam gas supply element for steelmaking |
| 07/04/2012 | CN102534105A Maintaining method of converter lining |
| 07/04/2012 | CN102534104A Novel building method for converter lining |
| 07/04/2012 | CN102534103A Method for real-time online analytical control of gas recovery of converter |
| 07/04/2012 | CN102534102A Waste gas flaming out and thermal energy recovering device for flue of steelmaking converter |
| 07/04/2012 | CN102534101A Method and device using convertor waste gas to produce high-quality steam needed by refining furnace in matching way |
| 07/04/2012 | CN102534100A Circular seam control device and process for novel converter one-time dedusting OG (Oxygen Converter Gas Recovery) system |
| 07/04/2012 | CN102534099A MgO-C ball capable of improving splashing slag furnace protection effect of converter |
| 07/04/2012 | CN102534098A Method for raking slag during smelt process of converter to produce low-phosphorus steel |
| 07/04/2012 | CN102534097A Converter tapping monitoring control system based on thermal image processing |
| 07/04/2012 | CN102534096A Slag stopping method for slag-free steel discharge from converter and special process slag stopper for slag-free steel discharge from converter |
| 07/04/2012 | CN102534095A Smelting process for super clean pipeline steel |
| 07/04/2012 | CN102534094A Method for producing tire cord steel wire by converter billet continuous casting process |
| 07/04/2012 | CN102534093A Control method of two-stage auxiliary material module in revolving furnace smelting process |