| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 01/02/2013 | CN102851457A RH refining process rapid deep decarbonization flux, and preparation method thereof |
| 01/02/2013 | CN102851456A Method for on-line removing cold steel in RH vacuum chamber |
| 01/02/2013 | CN102851455A Method for producing high-nitrogen IF steel |
| 01/02/2013 | CN102851454A Rapid deep decarburization method for RH refining process |
| 01/02/2013 | CN102851453A Composite refining slag for special-shaped blank molten steel smelting, and preparation method and application thereof |
| 01/02/2013 | CN102851452A Slag pressing agent and preparation method thereof |
| 01/02/2013 | CN102851451A Nitrogen increasing method for molten steel in tapping process |
| 01/02/2013 | CN102851450A Method for preventing desulfurization splashing of molten iron |
| 01/02/2013 | CN102851449A Refining furnace molten steel dephosphorization method adopting component adjustment and hermetical blowing of argon gas and oxygen gas |
| 01/02/2013 | CN102851448A Preparation method of steelmaking deoxidizer |
| 01/02/2013 | CN102851447A Outside-furnace refining production method of steel used in carbon steel welding wire |
| 01/02/2013 | CN102851446A Multilayer-structured calcium-core wire, and manufacturing method and purpose thereof |
| 01/02/2013 | CN102851445A Magnesium slagging balls, and application method thereof |
| 01/02/2013 | CN102851444A Aluminum calcium composite deoxidizer |
| 01/02/2013 | CN102851443A Method for increasing continuous casting heats of aluminum-deoxidized bearing steel |
| 01/02/2013 | CN102851442A Control method for low-nitrogen ultralow-sulfur steel |
| 01/02/2013 | CN102851441A Slag iron separating agent for high-vanadium and titanium molten iron, and slag iron separation method thereof |
| 01/02/2013 | CN102851435A Ultra-low-carbon, low-silicon and low-oxygen steel and smelting method thereof |
| 01/02/2013 | CN102851433A Method for controlling content of nitrogen in semi-steel smelted tire cord steel or hard wire steel |
| 01/02/2013 | CN102851432A Method for removing non-metal foreign substances from pipeline steel |
| 01/02/2013 | CN102847923A Pouring basket with molten steel purity stably improved under low argon consumption and metallurgical method thereof |
| 01/02/2013 | CN102847903A Method for manufacturing low-total-oxygen steel |
| 01/02/2013 | CN102249566B Process for carbonating active lime with rotary kiln tail gas |
| 01/02/2013 | CN102242309B Production method of boron-containing petroleum storage tank steel plate for ultra-high heat input welding |
| 01/02/2013 | CN102212703B Impellar for dispersing gas into molten metal |
| 01/02/2013 | CN102206791B Mo-containing ferritic stainless steel and manufacturing method thereof |
| 01/02/2013 | CN102183288B Refining aluminum consumption control method based on remote infrared monitoring |
| 01/02/2013 | CN102080188B CrNiMo series easily cut pinion steel and manufacturing method thereof |
| 01/02/2013 | CN102051446B Automatic connector of electromagnetic type argon blowing device |
| 01/02/2013 | CN102021490B X12CrMoWVNbN10-1-1 high-temperature structural steel and production method thereof |
| 01/02/2013 | CN102002557B Refining mode automatic control method of RH (relative humidity) dry type vacuum-pumping system |
| 01/02/2013 | CN101925687B Steel for machine structural use with excellent machinability |
| 01/02/2013 | CN101925685B High-strength thick steel products excellent in toughness and weldability, high-strength ultra-thick h shape steel and processes for manufacturing both |
| 01/02/2013 | CN101886229B Ball dedicated for semi-autogenous mill and process method thereof |
| 01/02/2013 | CN101541982B A ferro-alloy inserting apparatus with reduced absorption of oxygen and absorption of nitrogen and inserting method thereof |
| 01/02/2013 | CN101096718B 氧气注入方法 Oxygen injection method |
| 12/27/2012 | WO2012095471A3 Agent for treating molten metals, method for the production and use thereof |
| 12/26/2012 | CN202626235U Equipment for producing steel-making slag former by virtue of steel-making sludge |
| 12/26/2012 | CN202626234U Refining device for smelting low-carbon steel and ultra-low carbon steel by utilizing Ar/O2 plasma |
| 12/26/2012 | CN202626233U LF refining device with powder injection function |
| 12/26/2012 | CN202626232U Aluminum magnesium iron deoxidant used for steelmaking |
| 12/26/2012 | CN202626231U Multi-ingredient segmented cored wire |
| 12/26/2012 | CN102839292A Aluminum iron alloy with ultra-low carbon, ultra-low titanium and high silicon contents for deoxidizing aluminum silicon killed steel and manufacturing method of aluminum iron alloy |
| 12/26/2012 | CN102839259A Method for adding magnesium metal in refining process of vacuum circulating degassing furnace |
| 12/26/2012 | CN102839258A Aluminum-silicon-manganese-iron compound deoxidizer for steel making |
| 12/26/2012 | CN102839257A Ferro-silicon-aluminium compound deoxidizer used for steelmaking |
| 12/26/2012 | CN102839256A Smelting method for obtaining high-quality metal liquid |
| 12/26/2012 | CN102839251A Smelting method of low-phosphorous steel |
| 12/26/2012 | CN102091777B Equipment and method for removing nonmetallic slag inclusion in steel and iron smelting process |
| 12/26/2012 | CN102061358B Desulfuration refining process of high-sulfur crude ferronickel |
| 12/26/2012 | CN102010936B Process method for refining austenitic manganese steel by blowing argon gas into medium frequency induction furnace |
| 12/26/2012 | CN101994068B 奥氏体不锈钢钢板 Austenitic stainless steel |
| 12/26/2012 | CN101914657B Improvement of molten iron pretreatment elbow spray gun structure and optimization of used refractory material |
| 12/26/2012 | CN101724787B Axle shaft steel and preparation method thereof |
| 12/26/2012 | CN101443468B High cleanliness spring steel and high cleanliness spring having excellent fatigue property |
| 12/20/2012 | US20120321508 Method of producing ductile iron |
| 12/19/2012 | CN202613987U Oxygen blowing pipe clamp holding device |
| 12/19/2012 | CN202612711U Pneumatic material returning device for Rockwell hardness (RH) vacuum refining device feeding system |
| 12/19/2012 | CN202610259U RH vacuum processing elephant trunk |
| 12/19/2012 | CN102828098A Method for increasing molten steel finishing point manganese content by adding manganese ore outside furnace |
| 12/19/2012 | CN102828040A Method for recycling metallic aluminium in pre-melted slag of vacuum circulation degassing furnace |
| 12/19/2012 | CN102828003A Molten steel vacuum refining top gun |
| 12/19/2012 | CN102828002A Calcium treatment method of low-carbon and low-silicon Al-killed steel |
| 12/19/2012 | CN102828001A Slagging method for steel ladle refining furnace |
| 12/19/2012 | CN102828000A Metallurgical V-N microalloying and compound deoxidation cored wire |
| 12/19/2012 | CN102827999A Magnesium deoxidation composite powder for molten steel deoxidation and preparation method thereof |
| 12/19/2012 | CN102827998A Method for improving utilization rate of steelmaking powder materials |
| 12/19/2012 | CN102827997A Calcium carbide ferro-aluminium alloy used for smelting steel, and preparation method thereof |
| 12/19/2012 | CN102827996A Method for reducing nitrogen absorption of aluminum killed steel, low-nitrogen aluminum killed steel and production method of low-nitrogen aluminum killed steel |
| 12/19/2012 | CN102827990A Fluoride-free slagging medium for use in converter and preparation method thereof |
| 12/19/2012 | CN102827989A Production method of low-carbon high-chromium steel |
| 12/19/2012 | CN102827988A Removing method of chromium-containing slag shell of steel ladle |
| 12/19/2012 | CN102826490A Jacking ladle car and applications thereof in vacuum circulating degasification refining method |
| 12/19/2012 | CN102825223A Steel-making die-cast protecting slag produced by utilizing attapulgite |
| 12/19/2012 | CN102359626B Air brick protective valve |
| 12/19/2012 | CN102212654B Arrangement structure of double-station RH multifunctional top lance |
| 12/19/2012 | CN102206730B Method for controlling oxygen and reducing nitrogen in molten steel |
| 12/19/2012 | CN102155439B Vacuum degree regulating system for steam injection pump |
| 12/19/2012 | CN102127637B Method for utilizing caustic calcined dolomite |
| 12/19/2012 | CN101993972B Arc furnace steelmaking method |
| 12/19/2012 | CN101818230B Using method of manganese boron deoxidizer |
| 12/19/2012 | CN101724790B Low-nickel austenitic stainless steel and manufacturing method thereof |
| 12/19/2012 | CN101724286B Protective layer material for winding of electromagnetic vibration feeder and preparation method thereof |
| 12/19/2012 | CN101705430B High-speed steel roll and preparation method thereof by centrifugal compounding in electromagnetic field |
| 12/18/2012 | US8333921 Shaft coupling for device for dispersing gas in or pumping molten metal |
| 12/18/2012 | US8333819 Combined burner and lance apparatus for electric arc furnaces |
| 12/12/2012 | CN202595188U Spill preventing ring of vacuum degassing furnace |
| 12/12/2012 | CN202595187U Cooling device for preventing deformation of bottom of an RH vacuum degassing device (RH) lower groove |
| 12/12/2012 | CN202595186U Sealer between vacuum refining furnace oxygen gun and base |
| 12/12/2012 | CN202595185U VD (vacuum degassing) vacuum furnace shielding cover |
| 12/12/2012 | CN202595184U Split type argon blowing and desulfurization spray gun |
| 12/12/2012 | CN102816979A Production method of low-carbon sulfur series free-cutting steel continuous casting billet |
| 12/12/2012 | CN102816898A Method of interstitial-free atom steel top slag substance transformation |
| 12/12/2012 | CN102816897A Method for reducing inclusions in low-silicon interstitial-free (IF) steel |
| 12/12/2012 | CN102816896A Straight barrel type vacuum refining device and use method |
| 12/12/2012 | CN102816895A Building method for improved baking cover lining of RH (Rockwell Hardness) vacuum tank |
| 12/12/2012 | CN102816894A Control method for enhancing RH vacuum circulation decarburization rate |
| 12/12/2012 | CN102816893A External desulfurization method of acid induction furnace |
| 12/12/2012 | CN102816889A Smelting method of pseudo rimmed steel H08A |
| 12/12/2012 | CN102814474A Covering slag in process for preparing steel casting with sepiolite |