| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 05/22/2013 | CN103114178A RH refining furnace, insertion tube thereof and preparation method |
| 05/22/2013 | CN103114177A Gas-blowing and slag-gathering spray gun for assisting slag-off of molten iron and using method of spray gun |
| 05/22/2013 | CN103114176A Sound-light alarm apparatus for preventing ladle bottom blowing air brick steel bleed-out |
| 05/22/2013 | CN103114175A Deep desulfuration method for magnesium-based composite jetted molten iron |
| 05/22/2013 | CN103114174A Blowing desulfurization method for molten iron of torpedo ladle |
| 05/22/2013 | CN103114173A Composite deoxidizer for steelmaking |
| 05/22/2013 | CN103114172A Calcium treatment method of vacuum induction furnace in smelting experimental steel |
| 05/22/2013 | CN103114171A Cable connection device of conductive cross arm of hook overlap-joint type ladle refining furnace |
| 05/22/2013 | CN102534119B Control method for plasticization of tire cord steel inclusion |
| 05/22/2013 | CN102534094B Method for producing tire cord steel wire by converter billet continuous casting process |
| 05/22/2013 | CN102477474B Sulfur feeding method for smelting molten steel in vacuum induction furnace |
| 05/22/2013 | CN102409138B Process for manufacturing alloy steel for rail frog |
| 05/22/2013 | CN102392185B Normalized acid resistant hot-rolled steel plate and preparation method thereof |
| 05/21/2013 | US8444743 Method for producing a steel melt containing up to 30% manganese |
| 05/16/2013 | US20130121870 Ferritic stainless steel, with high and stable grain refining potency, and its production method |
| 05/15/2013 | EP2592169A1 High-strength steel sheet exhibiting superior stretch-flange formability and bendability, and method of preparing ingot steel |
| 05/15/2013 | EP2592160A1 Gas blowing nozzle |
| 05/15/2013 | CN202936442U Purge system applicable to MFB top lance |
| 05/15/2013 | CN202936441U Liquid-steel vacuum-refining system employing full dry type mechanical vacuum pump unit |
| 05/15/2013 | CN202936440U Splashing prediction analyzer of AOD (argon oxygen decarburization) furnace |
| 05/15/2013 | CN202936439U Intellectualized integrated pneumatic control device for steel making blowing gas control |
| 05/15/2013 | CN202936438U Safety-type bottom-blowing air brick |
| 05/15/2013 | CN202936437U Compound core of metal calcium aluminum cored wire for steelmaking deoxidization |
| 05/15/2013 | CN103103443A Bearing steel GCr15 production technology capable of preventing plugging of continuous casting water gap |
| 05/15/2013 | CN103103315A Integrated dipping pipe of RH vacuum refining device |
| 05/15/2013 | CN103103314A Method for reducing nitrogen increment of molten steel in refining process |
| 05/15/2013 | CN103103313A Nickel-chromium-silicon metal silicide alloy material and production method thereof |
| 05/15/2013 | CN103103312A Semisteel desulfurization agent and desulfurization method using the same |
| 05/15/2013 | CN103103311A Method for improving high-temperature water vapor oxidation resistance by adding nano rare earth oxide into T91 and P91 steel |
| 05/15/2013 | CN103103310A Vanadium extraction cold pressing block and preparation method and applications thereof and vanadium extraction method |
| 05/15/2013 | CN103103307A Method for producing steel for low-nitrogen stranded wire by use of non-vacuum process of converter |
| 05/15/2013 | CN103103306A Ring crack preventing type molten iron pretreatment spraying gun |
| 05/15/2013 | CN103102051A Method for preparing calcium ferrite steelmaking slag former by use of galvanizing sludge |
| 05/15/2013 | CN103100705A Anti-clogging air supply system of permeable brick for ladle |
| 05/15/2013 | CN102400052B Preparation method of narrow-hardenability pinion steel |
| 05/15/2013 | CN102021480B Manufacturing method of low-chromium ferritic stainless steel |
| 05/08/2013 | CN202925057U Liquid core electrode for electrochemistry deoxidation between slag and metal liquid |
| 05/08/2013 | CN202925056U Wire straightening device |
| 05/08/2013 | CN103088245A Manganese-iron alloy |
| 05/08/2013 | CN103088243A Preparation method of ferromanganese alloy |
| 05/08/2013 | CN103088187A Method of producing steel |
| 05/08/2013 | CN103088186A Slag-making method for rapid dephosphorization of semisteel |
| 05/08/2013 | CN102560252B Steel for medium-carbon Cr alloying connecting rod and manufacturing method of steel |
| 05/08/2013 | CN102352469B Ultrahigh-strength vanadium-titanium composite microalloyed high carbon steel wire rod and preparation method thereof |
| 05/08/2013 | CN102329137B Carbon-free alumina-magnesia unburned brick and preparation method and application thereof |
| 05/08/2013 | CN102061357B Dephosphorization refining process for phosphorus-containing coarse ferronickel |
| 05/08/2013 | CN101941021B Method for producing extra-deep drawing cold-rolled steel plate based on ASP process |
| 05/02/2013 | WO2013061652A1 Steel sheet |
| 05/02/2013 | WO2013060101A1 Method for smelting high-aluminum-low-silicon ultrapure ferritic stainless steel |
| 05/02/2013 | CA2851081A1 Steel sheet |
| 05/01/2013 | EP2586878A1 Method for controlling titanium content in ultra-low carbon killed steel |
| 05/01/2013 | CN202915726U Anti-creeping ladle furnace (LF) electrode clamping device |
| 05/01/2013 | CN202913015U Slag accretion device |
| 05/01/2013 | CN202913014U RH vacuum charging device |
| 05/01/2013 | CN202913013U Deoxidization body easy to settle |
| 05/01/2013 | CN202913012U Convenient-to-dismount sliding bearing of synchronizing shaft for LF (ladle furnace) cover |
| 05/01/2013 | CN202910971U Circulating tube mould |
| 05/01/2013 | CN103080358A High-strength steel sheet exhibiting superior stretch-flange formability and bendability, and method of preparing ingot steel |
| 05/01/2013 | CN103080342A Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment |
| 05/01/2013 | CN103074468A Flux for removal of impurities in steel during vacuum refining and preparation method thereof |
| 05/01/2013 | CN103074467A Solid metal magnesium alloy core-spun yarn for steelmaking desulfuration and manufacture method of solid metal magnesium alloy core-spun yarn |
| 05/01/2013 | CN103074466A Low-cost steel-making process for manufacturing flaw detection plate |
| 05/01/2013 | CN103074465A Molten steel purifying and casting method |
| 05/01/2013 | CN102296159B Handling method for blockage of insertion tube |
| 05/01/2013 | CN102296156B Ladle bottom blowing power injection device with whirlwind-type flow-smoothing gas storage chamber |
| 05/01/2013 | CN102296150B Submerged arc foaming refining agent and preparation method thereof |
| 05/01/2013 | CN101993973B Method for producing high-purity pure iron |
| 05/01/2013 | CN101892426B Medium and high-carbon Bainite steel and preparation method thereof |
| 04/25/2013 | WO2013058131A1 Bearing steel and method for producing same |
| 04/24/2013 | CN202898459U Convenient and practical vacuum degassing(VD) refining furnace |
| 04/24/2013 | CN202898458U Liquid iron desulfuration lime discharging pipe |
| 04/24/2013 | CN202898457U Efficient double-station electrode rotating LF (Ladle Furnace) |
| 04/24/2013 | CN202898456U Steel ladle rotary LF (ladle furnace) furnace |
| 04/24/2013 | CN103060719A Production method of rustproof and heat-resistant cast stainless steel pipe |
| 04/24/2013 | CN103060679A Q345-serie super-thick steel plate having low cost and guaranteeing performances and flaw detection, and production technology thereof |
| 04/24/2013 | CN103060527A Slagging method of axle steel LF (Ladle Refining) furnace |
| 04/24/2013 | CN103060526A Slag for controlling impurities of pipeline steel |
| 04/24/2013 | CN103060525A Process for high pressure compaction of fluorite ball with sodium silicate as binder |
| 04/24/2013 | CN103060524A Process for extracting vanadium from vanadium magnetite concentrate to smelt FeV80 vanadium iron |
| 04/24/2013 | CN103060523A Smelting method for non-magnetic stainless steel |
| 04/24/2013 | CN103060522A Slag forming agent for dephosphorization of medium-high-phosphorus semisteel and preparation method of slag forming agent |
| 04/24/2013 | CN103060521A Air cooling cyclonic magnesium agent desulphurization spray gun |
| 04/24/2013 | CN103060520A Melted aluminum-based alloy pneumatic stirring and mixing device and method thereof |
| 04/24/2013 | CN103060519A Deoxidation method for high-nitrogen steel |
| 04/24/2013 | CN103060518A Method for preparing steelmaking deoxidization pellets by sliced chip silicon carbide liquid waste |
| 04/24/2013 | CN103060517A Method for forecasting alloy composition of molten steel during LF refining process |
| 04/24/2013 | CN103060513A Method for smelting tire cord steel and method for continuously casting tire cord steel |
| 04/24/2013 | CN103060512A Dephosphorizing and steelmaking method of medium-high-phosphorous semisteel by top-blown converter |
| 04/24/2013 | CN103060507A Converter vacuum steelmaking method |
| 04/24/2013 | CN103056321A Method for adding fine powder into steel casting molten steel |
| 04/24/2013 | CN102505062B Converter rapid desilicification and dephosphorization pretreatment method |
| 04/24/2013 | CN102409238B 42CrMo alloy constructional steel super-thick plate and production method thereof |
| 04/24/2013 | CN102409132B Method for producing 25CrMnB steel through converter flow |
| 04/24/2013 | CN102329920B Method for smelting high-aluminum low-silicon ultra pure ferritic stainless steel |
| 04/24/2013 | CN102277468B Real-time forecasting method of LF refining furnace molten steel temperature |
| 04/24/2013 | CN101928885B Hydrothion corrosion resistant pipe steel and production method thereof |
| 04/23/2013 | US8425831 Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a DDD installation |
| 04/23/2013 | CA2574025C Steel for steel pipe |
| 04/17/2013 | EP2581463A1 Steel for steel pipe having excellent sulfide stress cracking resistance |
| 04/17/2013 | EP2581462A1 Blowing lance with direct ignition through retractable ignition lance |