| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 01/25/2012 | CN102329916A Method for feeding lead compound core spun yarn |
| 01/25/2012 | CN102329915A Lead compound core spun yarn |
| 01/25/2012 | CN102329913A Method for reducing micro cracks on surface of steel plate |
| 01/25/2012 | CN102329137A Carbon-free alumina-magnesia unburned brick and preparation method and application thereof |
| 01/25/2012 | CN101956040B Producing method of clean steel |
| 01/25/2012 | CN101935805B Grate bar and preparation method thereof |
| 01/25/2012 | CN101886203B Silicon iron product with low content of nitrogen |
| 01/25/2012 | CN101886156B Steelmaking method of ladle refining furnace |
| 01/25/2012 | CN101831527B Production process for continuous casting anti-corrosion soft magnetical alloy bars with light sections |
| 01/25/2012 | CN101831525B Dephosphorization method for molten iron |
| 01/25/2012 | CN101798612B Process for washing, pre-desulfurizing and refining tapping steel slag of converter |
| 01/25/2012 | CN101792884B Steel with underrelaxation and hydrogen corrosion resistance for high-speed railway prestressed pull rod and production method thereof |
| 01/24/2012 | US8101119 Electromagnetic stirrer |
| 01/19/2012 | US20120013055 Apparatus for inducing flow in a molten material |
| 01/18/2012 | EP2407563A1 Covering powder for liquid steel and method for manufacturing same |
| 01/18/2012 | CN202119259U Circulation pipe lining for refining steel furnace |
| 01/18/2012 | CN202119258U Water-cooling casting iron insulation type top furnace cover for refining furnace |
| 01/18/2012 | CN202116591U Slag stopping device |
| 01/18/2012 | CN202116590U Vacuum degree throttle adjusting device |
| 01/18/2012 | CN202116589U Fixing stopper of slag-off rake |
| 01/18/2012 | CN202116588U Steelmaking deoxidizing aluminum wire |
| 01/18/2012 | CN202116587U Aluminum covered iron deoxidizing block |
| 01/18/2012 | CN202116586U Metal wire guiding and straightening device for wire feeder |
| 01/18/2012 | CN202116585U Electrode rotating mechanism for double-station electrode rotating type LF (Ladle Furnace) refining furnace |
| 01/18/2012 | CN202116584U Low frequency (LF) ladle refining furnace with shared transformer double-parallel-connection and double-refining-station running simultaneously |
| 01/18/2012 | CN202116578U Production equipment of carbon structural steel plate |
| 01/18/2012 | CN102321856A High-quality structural steel for improving cutting performance and production process |
| 01/18/2012 | CN102321785A Method for smelting high-silicon low-oxygen clean steel |
| 01/18/2012 | CN102321784A Pre-molten conductive slag for electrochemical deoxidation and preparation method thereof |
| 01/18/2012 | CN102321780A Method for reducing content of total oxygen and inclusion of forfex material |
| 01/18/2012 | CN102321778A Method of deoxidation of medium carbon aluminum-containing steel in converter |
| 01/18/2012 | CN101899606B Smelting device system of wear-resistant alloy cast steel |
| 01/18/2012 | CN101818309B Manufacturing method of air bottle steel |
| 01/18/2012 | CN101704170B High-toughness gas shielded welding wire and preparation method and use method thereof |
| 01/17/2012 | US8097206 Lance duct for vacuum treatment systems |
| 01/12/2012 | WO2012005119A1 Gas blowing nozzle |
| 01/12/2012 | CA2803908A1 Gas blowing nozzle |
| 01/11/2012 | CN202107727U Liquid steel deoxidization aluminum ring |
| 01/11/2012 | CN202107726U Improved steel ladle refining furnace thread feeding machine guide support |
| 01/11/2012 | CN202107717U Molten iron desulfurization stirrer with improved vane structure |
| 01/11/2012 | CN202106023U Casting tundish for metal manganese with low gas content |
| 01/11/2012 | CN202105997U Cored wire of boron-iron alloy |
| 01/11/2012 | CN102312176A Method for adding nitrogen into stainless steel used for thermonuclear fusion reactor |
| 01/11/2012 | CN102312175A Method for manufacturing stainless steel plate used for thermonuclear fusion reactor |
| 01/11/2012 | CN102312169A High-strength, low-alloy and high-carbon steel wire rod and production method thereof |
| 01/11/2012 | CN102312166A Stanniferous ferrite stainless steel and smelting method therefor |
| 01/11/2012 | CN102312157A Cold-rolled TRIP steel at over 1000 MPa and preparation method thereof |
| 01/11/2012 | CN102312149A Carbon and manganese alloy material and preparation method thereof and steel making method applying material |
| 01/11/2012 | CN102312054A Ladle furnace low alkalinity slag refining process |
| 01/11/2012 | CN102312053A Refining low-slag-quantity operating process |
| 01/11/2012 | CN102312052A Flat single-tube vacuum refining device |
| 01/11/2012 | CN102312051A Novel smelting preheating spray gun |
| 01/11/2012 | CN102312050A Carrier and fluidization treatment method used for blowing desulfurization material |
| 01/11/2012 | CN102312049A Desulfurizing agent suitable for high-aluminum silicon steel and preparation method thereof |
| 01/11/2012 | CN102312048A Premelting type desulfurizing agent suitable for high-aluminum silicon steel and preparation method thereof |
| 01/11/2012 | CN102312047A Cored wire for modifying and removing foreign materials in container filled with steel |
| 01/11/2012 | CN102312046A Slag discharge method of single-nozzle refining furnace |
| 01/11/2012 | CN102312045A Method for improving internal quality of medium plate |
| 01/11/2012 | CN102312035A Smelting method for producing high strength weathering steel by use of chromium-nickel pig iron |
| 01/11/2012 | CN101857911B Method for steelmaking by using converter |
| 01/11/2012 | CN101314803B Calloy deoxidizing agent for steel-smelting |
| 01/04/2012 | CN202099319U Double-station RH multifunctional top gun arrangement device |
| 01/04/2012 | CN202099318U Rotary device for elbow pipe |
| 01/04/2012 | CN202099317U Graphite nozzle for desulfurization spray gun |
| 01/04/2012 | CN102308007A Injecting gas into a vessel |
| 01/04/2012 | CN102308006A Apparatus for injecting gas into a vessel |
| 01/04/2012 | CN102305552A Steel ladle bottom blowing dusting bleed-out detection device and bleed-out detection method |
| 01/04/2012 | CN102304670A Steel plate with -40 DEG C strain aging and high toughness and production method thereof |
| 01/04/2012 | CN102304606A Slag former and slagging method for semisteel steelmaking |
| 01/04/2012 | CN102304605A High-alkalinity deoxidation refining slag |
| 01/04/2012 | CN102304604A Smelting technology of III grade hot-rolled ribbed bars |
| 01/04/2012 | CN101935808B 130ksi steel-grade low-temperature drill rod with high toughness and corrosion resistance and manufacturing method thereof |
| 01/04/2012 | CN101798659B Low-carbon low-phosphorus nickel-chromium-iron alloy used for stainless acid resistant steel and preparation method thereof |
| 01/04/2012 | CN101768691B Productive technology of short flow of structure type cast iron part |
| 01/04/2012 | CN101716651B Method for casting turbo supercharger volute shell casting for large ship |
| 01/04/2012 | CN101457281B RH decarburization method during ultra-low-carbon steel production process by revolving furnace |
| 12/29/2011 | WO2011160483A1 Method for controlling titanium content in ultra-low carbon killed steel |
| 12/28/2011 | CN202090020U 包内铁水精炼方法所需设备 Package of hot metal refining methods needed equipment |
| 12/28/2011 | CN202090019U 一种苔形脱氧铝块 One kind of moss deoxy-shaped aluminum block |
| 12/28/2011 | CN202090018U 高铝硅铁脱氧块 Ferrosilicon deoxy aluminous block |
| 12/28/2011 | CN202090017U 铝锰铁脱氧块 Ferromanganese deoxy aluminum block |
| 12/28/2011 | CN202090016U 铝硅铁脱氧块 Deoxy ferrosilicon aluminum block |
| 12/28/2011 | CN202090015U 铸钢用脱氧铝包 Aluminum clad steel deoxidation |
| 12/28/2011 | CN202090014U 实芯钝化纯钙包芯线 Solid passivation pure calcium cored wire |
| 12/28/2011 | CN102297604A 一种精炼炉余热回收持续供汽方法及其设备 A furnace heat recovery steam refining method and apparatus for continuous |
| 12/28/2011 | CN102296251A 焊丝用合金结构钢、线材及其制造方法 Alloy structural steel wire, wire and its manufacturing method |
| 12/28/2011 | CN102296160A 一种低成本rh钢水增氮控氮工艺 Rh molten steel by a low-cost nitrogen Nitrogen Process |
| 12/28/2011 | CN102296159A 一种插入管堵塞的处理方法 A processing method of the insertion tube blockage |
| 12/28/2011 | CN102296158A 一种避免精炼过程中钢水喷溅的方法 A splash of molten steel refining process avoids |
| 12/28/2011 | CN102296157A 超低碳铝硅镇静钢的极低Ti控制方法 Ultra low carbon Al-Si-Ti-killed steel control method |
| 12/28/2011 | CN102296156A 一种旋风护流蓄气室钢包底吹喷粉装置 Retaining a cyclonic flow accumulator chamber ladle bottom blowing spraying device |
| 12/28/2011 | CN102296155A 一种aod阀架配气系统 One kind of gas distribution systems aod valve frame |
| 12/28/2011 | CN102296154A 一种含易氧化元素的高合金钢的还原精炼方法 Reduction of high-alloy steel refining method containing easily oxidized elements |
| 12/28/2011 | CN102296153A 一种新型炼钢用预熔型脱磷剂及其制备方法 A new pre-Acting steelmaking dephosphorizer its preparation method |
| 12/28/2011 | CN102296152A 一种新型转炉炼钢脱磷剂及其制备方法 A new BOF dephosphorizer its preparation method |
| 12/28/2011 | CN102296151A 一种复合结构的预熔渣 A composite structure of pre-slag |
| 12/28/2011 | CN102296150A 一种埋弧发泡精炼剂及其制备方法 One kind of submerged foam refining its preparation method |
| 12/28/2011 | CN102296149A 用于低碳铝镇静钢的无氟高效脱硫精炼渣系 Freon efficient desulfurization for LCAK steel refining slag system |
| 12/28/2011 | CN102296148A 一种if钢包内脱磷方法 An in if ladle dephosphorization method |
| 12/28/2011 | CN102296147A 大线能量焊接用厚钢板中纳米析出物的控制方法 Large heat input welding method of controlling nanometer-thick steel plate precipitates |