| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 04/13/2011 | CN102010931A Slagging method for reducing inclusions in boiler refractory steel |
| 04/13/2011 | CN102010930A Method for smelting mirror plastic mould steel |
| 04/13/2011 | CN102010926A Process for smelting and producing medium high carbon steel |
| 04/13/2011 | CN101701279B Method for smelting low-sulfur steel by single-mouth refining furnace |
| 04/13/2011 | CN101503748B Argon blowing automatic connecting mechanism for steel melting technique |
| 04/13/2011 | CN101397628B Continuous casting bearing steel round steel and method for producing the same |
| 04/13/2011 | CN101389773B Electric arc furnace steelmaking |
| 04/12/2011 | CA2569316C Cored wire |
| 04/06/2011 | EP2305850A1 High-strength thick steel products excellent in toughness and weldability, high-strength ultra-thick h shape steel and processes for manufacturing both |
| 04/06/2011 | EP1790748B1 Steel for steel pipe |
| 04/06/2011 | EP1567680B1 Method and apparatus for optimized mixing in a common hearth in plasma furnace |
| 04/06/2011 | CN201785438U Compact dipping cover type molten steel refining device |
| 04/06/2011 | CN201785437U Novel middle thread of core-spun thread |
| 04/06/2011 | CN201785436U Novel multi-layer cored wire center line |
| 04/06/2011 | CN102006950A Mold flux for continuous casting of steel and method for continuous casting of steel using same |
| 04/06/2011 | CN102002633A 碳素钢及其制造方法 Carbon steel and its manufacturing method |
| 04/06/2011 | CN102002631A Micro-niobium 510MPa grade automobile beam plate and manufacturing method thereof |
| 04/06/2011 | CN102002557A Refining mode automatic control method of RH (relative humidity) dry type vacuum-pumping system |
| 04/06/2011 | CN102002556A Rare earth oxide-containing steelmaking refining slag, and preparation method and using method thereof |
| 04/06/2011 | CN102002555A Method for treating refining slag in stainless steel smelting by using argon oxygen decarburizing furnace |
| 04/06/2011 | CN102002554A Rapid desulfurization refining method for ladle furnace |
| 04/06/2011 | CN102002553A Desulfurization method of medium and low grade cold rolling non-oriented molten silicon steel |
| 04/06/2011 | CN102002550A Slag modifier for converter refining |
| 04/06/2011 | CN102000807A Manufacturing process of high-pressure hydro-carbon steel valve castings |
| 04/06/2011 | CN102000797A Method for producing nodular cast iron pipe fittings with vanadium-bearing titanomagnetite as raw material |
| 04/06/2011 | CN101660020B Manufacturing method of steel |
| 04/06/2011 | CN101591752B Steel for cup-shaped iron core of loudspeaker and production method thereof |
| 04/06/2011 | CN101403069B Hot-rolled U shaped metal sheet pile and microalloying production method |
| 04/06/2011 | CN101333582B On-line vacuum arrangement apparatus |
| 04/06/2011 | CN101298633B Converter slag-containing premelting molten iron pretreatment dephosphorization agent |
| 04/06/2011 | CN101289731B CrMnTi narrow hardenability strip pinion steels and method of manufacture |
| 04/05/2011 | US7918916 Calcium-silicate based slag for treatment of molten steel |
| 03/30/2011 | CN201780122U Compound detecting probe |
| 03/30/2011 | CN201778085U Novel flux injection powder refining rotary connecting device |
| 03/30/2011 | CN201778058U Vacuum refining furnace |
| 03/30/2011 | CN201778057U Hydraulic slag skimming plate |
| 03/30/2011 | CN201778056U Mechanism for delivering blowing cast slag gun |
| 03/30/2011 | CN201778055U Air blow gun for blowing air and removing slag |
| 03/30/2011 | CN101999006A Alloy 'kazakhstanskiy' for reducing and doping steel |
| 03/30/2011 | CN101994068A Austenitic stainless steel plate and manufacture method thereof |
| 03/30/2011 | CN101994052A Nitrogen-containing austenitic alloy |
| 03/30/2011 | CN101993987A Method for producing extremely thick steel plate with low alloy and high intensity by continuously casting plate blank |
| 03/30/2011 | CN101993981A Production process of 55CrMnBA spring steel |
| 03/30/2011 | CN101993980A Method for smelting ultralow-phosphorous steel |
| 03/30/2011 | CN101993979A Premelting compound refining slag for producing ultra-low sulfur steel |
| 03/30/2011 | CN101993978A Silicon iron for refining, deoxidizing and alloying Si-Mn deoxidized steel and using method thereof |
| 03/30/2011 | CN101993977A Ferromanganese for refining deoxidizing of Si-Mn deoxidized steel and using method thereof |
| 03/30/2011 | CN101993976A Aluminium killed steel refined deoxidizing and desulfurizing synthetic slag |
| 03/30/2011 | CN101993975A Ultrafine particle deoxidizer |
| 03/30/2011 | CN101993974A Method for preparing pure iron with extremely low gas content |
| 03/30/2011 | CN101993973A Method for producing high-purity pure iron |
| 03/30/2011 | CN101993972A Arc furnace steelmaking method |
| 03/30/2011 | CN101724734B Complex desulfurizer and manufacturing method |
| 03/30/2011 | CN101698897B Technology of quickly producing white slag by deep desulphurizing after converter tapping |
| 03/30/2011 | CN101643885B Engineering steel with excellent lamellar tearing resisting performance and production method thereof |
| 03/30/2011 | CN101643820B Fluid active lime powder with low surface energy and production method thereof |
| 03/30/2011 | CN101634523B Casting method of cast steel cooling wall |
| 03/30/2011 | CN101634520B Casting method of cast steel cooling plate |
| 03/30/2011 | CN101619411B Steel making nitriding silicon-manganese alloy and preparation method thereof |
| 03/30/2011 | CN101519713B Slag adhesion preventing fluorine-free slag modifier for ladle refining, preparation method and using method |
| 03/30/2011 | CN101376948B Low-cost high-purity medium carbon bearing steel for automobile hub and manufacturing method thereof |
| 03/29/2011 | US7914601 Cold start-up method for a direct smelting process |
| 03/29/2011 | CA2568845C Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 03/29/2011 | CA2482050C Iterative cycle process for carbon supersaturation of molten metal and solid metals obtained thereby |
| 03/23/2011 | EP2298950A1 Steel material for welding |
| 03/23/2011 | EP2298470A1 Process for production of cast slab of low-carbon steel |
| 03/23/2011 | EP2297366A1 Dual outlet injection system |
| 03/23/2011 | EP1930460B1 Low alloy steel |
| 03/23/2011 | CN201770728U Vacuum degassing device with plasma heating device |
| 03/23/2011 | CN201770727U RH furnace circulation pipe |
| 03/23/2011 | CN201770726U Arch brick |
| 03/23/2011 | CN201770725U Pure iron rod fillable with element Bi and for steel making furnace |
| 03/23/2011 | CN101988173A Cast steel material and preparation method thereof |
| 03/23/2011 | CN101988140A Hot metal desulphurization slag foaming agent and preparation method thereof |
| 03/23/2011 | CN101987330A Manufacturing method of super-thick laminar tearing resisting steel plate |
| 03/23/2011 | CN101665857B Novel liquid steel refining fluxing slag |
| 03/23/2011 | CN101643821B Active lime powder surface modifier and production method thereof |
| 03/23/2011 | CN101560584B Special slag-sticking device for pretreating hot metal and slag-sticking technology thereof |
| 03/23/2011 | CN101445858B Method for treating inclusions in hot-rolled steel plates for welded gas cylinder |
| 03/22/2011 | US7909909 Method of production of secondary steel based on scrap |
| 03/17/2011 | DE10103605B4 Vorrichtung zum Einspeisen von festem Partikelmaterial in einen Kessel An apparatus for feeding solid particulate material into a vessel |
| 03/16/2011 | EP2295615A1 High-strength hot-rolled steel sheet for line pipe excellent in low-temperature toughness and ductile-fracture-stopping performance and process for producing the same |
| 03/16/2011 | EP2295614A1 Alloy "kazakhstanski" for reducing and doping steel |
| 03/16/2011 | CN201762377U Ejection gun rotating device |
| 03/16/2011 | CN201762376U Multifunctional top lance device |
| 03/16/2011 | CN201762375U Slag stopping cap of vacuum treatment device |
| 03/16/2011 | CN201762374U Slag pot car |
| 03/16/2011 | CN201762373U Argon and powder injection device and steel ladle refining furnace |
| 03/16/2011 | CN201762372U Hot metal pretreatment device for slag expelling by blowing |
| 03/16/2011 | CN201762371U Alloy-wire conduit of wire feeder |
| 03/16/2011 | CN201762370U Emergency ejection gun lifting device |
| 03/16/2011 | CN201762369U Lifting guide pipe of metal wire feeder |
| 03/16/2011 | CN201762368U Variable-frequency ultrasonic refined-smelting ladle furnace capable of rapidly slugging |
| 03/16/2011 | CN201762367U Aluminum wire positioning device for wire feeder |
| 03/16/2011 | CN201760587U Ladle covering technique suitable for various refining outside furnace |
| 03/16/2011 | CN101985672A Throw repairing method of ladle porous bricks |
| 03/16/2011 | CN101985671A Desulfurization and deoxidization alloying process method in steel making ladle of electric arc furnace |
| 03/16/2011 | CN101649410B Method for smelting molten steel and adding rear earth by vacuum induction furnace |
| 03/16/2011 | CN101613783B Method for increasing nitrogen in refining furnace |
| 03/16/2011 | CN101487076B Core cabling wire for steel melting and preparation thereof |