| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 03/06/2013 | CN102424894B Method for producing 23MnB steel in converter process |
| 03/06/2013 | CN102424883B Vacuum method for producing 25CrMnB steel |
| 03/06/2013 | CN102383025B Preparation method of super-critical high alloy steel suitable for thermal power unit |
| 03/06/2013 | CN102168163B Heating slag melting agent for smelting low-silicon liquid iron and preparation method of the heating slag melting agent |
| 03/06/2013 | CN101880753B Strong desulphurizer containing BaO and Li2O, production method thereof and method for deeply desulfurizing liquid steel |
| 03/06/2013 | CN101655002B Oil layer-section oil casing pipe for exploiting thick oil by method of combustion drive and production method thereof |
| 03/06/2013 | CN101384735B Method of denitrifying molten steel |
| 02/28/2013 | WO2013027253A1 Boron-containing stainless steel having excellent hot workability and excellent surface properties |
| 02/27/2013 | CN202757460U Novel oxygen lance nozzle |
| 02/27/2013 | CN202755020U Argon oxygen decarburization converter dust removing and double-medium waste heat generation system |
| 02/27/2013 | CN202755019U Iron alloy cored wire supporting frame |
| 02/27/2013 | CN202752595U Protection device of gas permeable brick for ladle |
| 02/27/2013 | CN102943219A Nickel-saving austenitic stainless steel containing manganese, nitrogen and boron and fabrication method |
| 02/27/2013 | CN102943152A Energy-saving production method for smelting electrolytic manganese balls for ultra-low carbon steel RH furnace alloy micro-adjustment |
| 02/27/2013 | CN102943151A Steel liquid vacuum refinement system adopting complete-dry type mechanical vacuum pump |
| 02/27/2013 | CN102943150A Refined slag control method |
| 02/27/2013 | CN102943149A Device and method for judging leakage amount of ladle bottom blowing pipeline |
| 02/27/2013 | CN102943148A Method for producing high-purity stainless steel |
| 02/27/2013 | CN102943147A Device for improving molten steel calcium treatment effect |
| 02/27/2013 | CN102943146A Steel smelting slagging method, steel smelting method and slagging material |
| 02/27/2013 | CN102312176B Method for adding nitrogen into stainless steel used for thermonuclear fusion reactor |
| 02/27/2013 | CN102277538B Tin-containing ferrite stainless steel plate and manufacturing method thereof |
| 02/27/2013 | CN102211159B Production method of steel for 82 B steel stranded wires |
| 02/27/2013 | CN102199689B Refining method of magnesia-calcia-based stainless steel ladle vacuum refining furnace |
| 02/27/2013 | CN102181610B Composite slagging agent for making semisteel, and preparation method and using method thereof |
| 02/27/2013 | CN102108468B Steel for railway locomotive axles and manufacturing method thereof |
| 02/27/2013 | CN102021270B Method for improving isotropy of alloy constructional steel |
| 02/21/2013 | WO2013024766A1 Molten steel desulfurization method, molten steel secondary refining method, and molten steel manufacturing method |
| 02/20/2013 | CN202744590U Device for automatically measuring temperature and sampling molten steel in vacuum state |
| 02/20/2013 | CN202744589U Valveless control loop of full steam vacuum decarburization (VD) furnace |
| 02/20/2013 | CN202744588U Slag stopper plate for VD/VOD (Vacuum Decarburization/Vacuum Oxygen Decarburization) furnace |
| 02/20/2013 | CN202744587U Refined steel ladle double-layer air brick |
| 02/20/2013 | CN202744586U Spray gun carriage device used in steelmaking composite blowing desulfurization process |
| 02/20/2013 | CN202744585U Winding and aligning device for wrapping pure calcium wire core |
| 02/20/2013 | CN202744584U Novel anti-splashing pure metal calcium cored wire |
| 02/20/2013 | CN202744566U Steel-making desulfurized slag treatment system |
| 02/20/2013 | CN202741731U Slag-off rod lifting and tilting mechanism of hydraulic slag remover |
| 02/20/2013 | CN202741728U Hot metal ladle car tipping device used in steelmaking desulfuration and deslagging process |
| 02/20/2013 | CN102936640A Novel technique for smelting stainless steel through RKEF (rotary kiln-electric furnace) and AOD furnace duplex process |
| 02/20/2013 | CN102936639A Connection structure of AOD rocking furnace and furnace body frame |
| 02/20/2013 | CN102936638A Induction furnace dephosphorizing method by top and bottom blowing |
| 02/20/2013 | CN102936636A Method for manufacturing medium-carbon low-alloy steel TDC66T-1 containing boron |
| 02/20/2013 | CN102312047B Cored wire for modifying and removing inclusions in container filled with steel |
| 02/14/2013 | WO2013020858A1 Method and apparatus for dephosphorising liquid hot metal such as liquid blast furnace iron |
| 02/14/2013 | CA2843798A1 Method and apparatus for dephosphorising liquid hot metal such as liquid blast furnace iron |
| 02/13/2013 | EP2557058A1 Ladle transport system |
| 02/13/2013 | EP2556176A1 Ultrasonic degassing of molten metals |
| 02/13/2013 | CN202730178U Detachable blowpipe with multiple groups of air outlets |
| 02/13/2013 | CN202730177U Non-steel adhesion slag splashing protection device |
| 02/13/2013 | CN202730176U Complex aluminum, magnesium and iron deoxidizer |
| 02/13/2013 | CN202730175U Mud sticking device for refining furnace cover |
| 02/13/2013 | CN202730174U Pneumatic and manual pressing device assembly of wire feeder |
| 02/13/2013 | CN102925799A Production method of ultrahigh-strength steel plate |
| 02/13/2013 | CN102925631A Novel vacuum circulating degassing furnace and processing method thereof |
| 02/13/2013 | CN102925630A Method for preventing water vapour in vacuum hopper and feeding elephant trunk of RH furnace |
| 02/13/2013 | CN102925629A Induction furnace dephosphorization method adopting top and bottom blowing |
| 02/13/2013 | CN102925628A 铁水脱硫方法 The method of hot metal desulphurization |
| 02/13/2013 | CN102925627A Method for controlling occurrence mode of sulfur in refining slags |
| 02/13/2013 | CN102925626A Method for improving aluminum-containing killed steel casting performance of Ti system |
| 02/13/2013 | CN102925625A Cored wire and its preparation method |
| 02/13/2013 | CN102925624A Desiliconization agent for molten iron and preparation and using methods for desiliconization agent |
| 02/13/2013 | CN102925618A Method for increasing nitrogen of vanadium and nitrogen-containing microalloy steel |
| 02/13/2013 | CN102925616A Smelting method of vanadium-containing molten iron |
| 02/13/2013 | CN102312054B Ladle furnace low alkalinity slag refining process |
| 02/13/2013 | CN102199686B Molten iron dephosphorization agent, and dephosphorization and desilication method for molten iron |
| 02/13/2013 | CN102199685B Molten iron desiliconizing reagent and molten iron desiliconizing method |
| 02/13/2013 | CN102037148B High-strength steel sheet and process for producing molten steel for high-strength steel sheet |
| 02/13/2013 | CN101928806B Composite slagging agent for semi-steel making and preparation method thereof and semi-steel making method |
| 02/13/2013 | CN101428342B Ironmaking casting system |
| 02/12/2013 | CA2718576C Method of making a high strength, high toughness, fatigue resistant, precipitation hardenable stainless steel and products made therefrom |
| 02/06/2013 | CN202717800U Continuous feeding device during vacuum smelting |
| 02/06/2013 | CN202717799U Medium-frequency induction furnace bottom-blow argon vent brick |
| 02/06/2013 | CN202717798U Single-nozzle finery dip pipe with argon lifting device at one side |
| 02/06/2013 | CN202717797U Multi-component segment-coring wire packing machine |
| 02/06/2013 | CN202717796U Elemental calcium/aluminum powder and reduction iron powder composite cored wire |
| 02/06/2013 | CN202717795U Novel wire feeding machine |
| 02/06/2013 | CN102912229A 390MPa-grade low-cost hot rolling structural steel plate and manufacture method thereof |
| 02/06/2013 | CN102912218A Tinned raw-steel plate with excellent stamping property and method for manufacturing tinned raw-steel plate |
| 02/06/2013 | CN102912085A Stainless steel smelting method for improving content of MgO in slag of gas oxygen refining converter and LF (ladle furnace) |
| 02/06/2013 | CN102912084A Molten iron desulfurization method |
| 02/06/2013 | CN102912083A Melted iron desulfuration and slag skimming product line system |
| 02/06/2013 | CN102912082A Low-alkalinity synthetic slag for external refining of boiler tube steel |
| 02/06/2013 | CN102912081A Method for processing molten steel and improving cleanliness of steel by aid of external electric field |
| 02/06/2013 | CN102912080A LF treatment method for producing low-carbon low-silicon low-manganese steel |
| 02/06/2013 | CN102912078A Minimum energy utilization electric arc furnace system and processes for making steel products |
| 02/06/2013 | CN102909358A Method for reducing loss of refractory material of slag-receiving pot of RH furnace steel ladle vehicle |
| 02/06/2013 | CN102909334A Control method for cracks of continuous casting slabs of Cr-contained low alloy steel TDC76 |
| 02/06/2013 | CN102392102B High-efficient catalytic separating agent |
| 02/06/2013 | CN102199688B Method for efficiently refining ultra-pure ferritic stainless steel |
| 02/06/2013 | CN102080193B Structural steel for welding with ultra-great heat input and manufacturing method thereof |
| 02/06/2013 | CN102041352B Multi-element compound deoxidizer as well as preparation method and application thereof |
| 02/06/2013 | CN102021499B Method for manufacturing high-strength pipe steel |
| 01/31/2013 | US20130025413 Method for treatment of chrome-containing molten iron and slag |
| 01/30/2013 | CN102906290A Free-cutting stainless-steel material for precision processing and process for producing same |
| 01/30/2013 | CN102899565A Steel for cold rolling enamel, and manufacturing method thereof |
| 01/30/2013 | CN102899563A Method for producing ultrahigh-strength steel plate |
| 01/30/2013 | CN102899554A Annealing-free low-carbon steel coil rod and production method thereof |
| 01/30/2013 | CN102899552A High-manganese steel composite modificator |
| 01/30/2013 | CN102899457A Method for preventing top lance of vacuum cycle degassing furnace from falling |
| 01/30/2013 | CN102899456A Method for reducing nitrogen increase of molten steel in refined-smelting ladle furnace (LF) in heating process |