| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 03/27/2013 | CN102994698A Four-blade molten iron desulphurization stirring device |
| 03/27/2013 | CN102994697A Mechanical stirring device for molten iron desulphurization |
| 03/27/2013 | CN102994696A Low-thermal stress desulfurization spray gun |
| 03/27/2013 | CN102994695A Moistureproof LF bottom-blown dusting device |
| 03/27/2013 | CN102994694A Method for efficiently carbureting LF furnace molten steel |
| 03/27/2013 | CN102409134B Method for producing 23MnB steel based on converter flow path |
| 03/27/2013 | CN102409133B Method for producing 23MnB steel by adopting vacuum process |
| 03/27/2013 | CN102296155B AOD (argon oxygen decarburization) valve shelf gas distribution system |
| 03/27/2013 | CN102212653B Method for designing bent pipe rotating device |
| 03/27/2013 | CN102080142B Top lance automatic fixing system |
| 03/27/2013 | CN102066598B Steel material for welding |
| 03/27/2013 | CN102041455B Stainless steel for heat exchanger welded pipe and manufacturing method thereof |
| 03/27/2013 | CN101962740B Ferrite stainless steel for automobile exhaust emission system and manufacturing method thereof |
| 03/27/2013 | CN101871079B Copper-bearing ferritic antibacterial stainless steel and manufacturing method thereof |
| 03/20/2013 | CN202808869U Steam supply device for vacuum refining furnace |
| 03/20/2013 | CN202808868U RH vacuum refined hot-bent pipe |
| 03/20/2013 | CN202808867U Circulation lift gas pipe of RH vacuum refining furnace dip pipe |
| 03/20/2013 | CN202808866U Metal shell with sleeved type welded structure for dip pipe of vacuum refining furnace |
| 03/20/2013 | CN202808865U Argon blowing device with ultrasonic agitation |
| 03/20/2013 | CN202808864U Furnace-rear steel ladle argon blowing device |
| 03/20/2013 | CN202808863U Spiral gap type air brick |
| 03/20/2013 | CN202808862U Desulfuration spray gun |
| 03/20/2013 | CN202808861U Powder injecting and automatic-fluidizing device |
| 03/20/2013 | CN202808860U Pneumatic and hand screwdown gear assembly of wire-feeding equipment |
| 03/20/2013 | CN202808859U Core-spun thread for steelmaking |
| 03/20/2013 | CN202808856U KR mixing head |
| 03/20/2013 | CN202804172U Steel ladle exterior ventilation structure |
| 03/20/2013 | CN102985575A Steel for steel pipe having excellent sulfide stress cracking resistance |
| 03/20/2013 | CN102978538A Smelting process for production of grade II hot-rolled reinforced bar |
| 03/20/2013 | CN102978505A Smelting method of high-strength IF steel |
| 03/20/2013 | CN102978345A Low-chrome refractory material RH refining furnace and building method thereof |
| 03/20/2013 | CN102978344A RH vacuum chamber baking system |
| 03/20/2013 | CN102978343A Method for controlling nitrogen increasing of RH refined molten steel |
| 03/20/2013 | CN102978342A Granulated magnesium molten iron desulfurization lance |
| 03/20/2013 | CN102978341A Desulfuration spray gun for molten iron refining |
| 03/20/2013 | CN102978340A Steelmaking deoxidizing agent and preparation method thereof |
| 03/20/2013 | CN102978339A Method for preparing calcium-aluminum-alloy core-spun wires for steelmaking deoxidation |
| 03/20/2013 | CN102978338A Method for automatically controlling CAS (composition adjustment by sealed argon bubbling)-OB (oxygen blowing) |
| 03/20/2013 | CN102978335A Converter and finery steelmaking on-line continuous detection system |
| 03/20/2013 | CN102978332A Smelting method of 9Ni steel |
| 03/20/2013 | CN102978327A S-shaped molten iron desulfuration stirrer |
| 03/20/2013 | CN102978326A Free style molten iron desulfurization spray gun |
| 03/20/2013 | CN102978325A Molten iron desulfuration stirrer |
| 03/20/2013 | CN102978323A 多叶片铁水脱硫搅拌装置 Multi-blade stirrer hot metal desulphurization |
| 03/20/2013 | CN102976290A Preparation method of iron vanadium nitride |
| 03/20/2013 | CN102367502B Molten steel deep dephosphorization process of ladle powder injection outside of furnace |
| 03/20/2013 | CN102329918B Widely applicable melting technology of free cutting steel containing lead |
| 03/20/2013 | CN102329917B Production method of clean steel |
| 03/20/2013 | CN102296145B New application of fungus residue and heat-insulating covering agent for metallurgical industry |
| 03/20/2013 | CN102234706B Method for refining grains of heavy forging steel of nuclear reactor evaporator |
| 03/20/2013 | CN102234703B On-line thermal state cleaning method for accumulated burl on mechanical desulfuration stirring paddle by using knotted reactor (KR) method |
| 03/20/2013 | CN102212638B Refining method of molten iron in ladle and devices required by same |
| 03/20/2013 | CN102191354B Electrode hoisting system for low-frequency (LF) furnace |
| 03/20/2013 | CN102137947B Pearlite rail having superior abrasion resistance and excellent toughness |
| 03/13/2013 | CN202786326U Molten steel temperature measuring mechanism |
| 03/13/2013 | CN202786325U Anti-blocking vacuum charging device of vacuum oxygen blowing furnace |
| 03/13/2013 | CN202786324U Guiding device for precise butt joint of RH (relative humidity) split type vacuum slot |
| 03/13/2013 | CN202786323U Composite porous brick used for steel ladle bottom blowing |
| 03/13/2013 | CN202786322U Low-position holder of ladle desulphurization lance |
| 03/13/2013 | CN202786321U Immersion tube of RH refining furnace |
| 03/13/2013 | CN202786320U Wire conveying device |
| 03/13/2013 | CN202786319U Pure calcium/reduced iron power composite core-spun thread |
| 03/13/2013 | CN202786318U Pure calcium/silicon iron composite core-spun thread |
| 03/13/2013 | CN202786317U Wire conveyor |
| 03/13/2013 | CN202786316U Small furnace cover of ladle refining furnace |
| 03/13/2013 | CN202786300U Desulfuration blowing pipeline |
| 03/13/2013 | CN202785277U Ladle refining furnace electrode fault clamp |
| 03/13/2013 | CN202779773U Molten iron slag-off plate |
| 03/13/2013 | CN102965585A Antibacterial austenitic stainless steel |
| 03/13/2013 | CN102965530A Silicon-calcium-magnesium smelting method and silicon-calcium-magnesium product produced by using method |
| 03/13/2013 | CN102965476A Electrode rotation double-station electric arc heating vacuum treatment device and using method thereof |
| 03/13/2013 | CN102965475A Method for manufacturing physical model of RH refining device |
| 03/13/2013 | CN102965474A Anti-slag agent for high temperature VD (Vaccum Distillation) furnace |
| 03/13/2013 | CN102965473A Treatment method of cooling water leakage in vacuum circulating degassing furnace vacuum chamber |
| 03/13/2013 | CN102965472A Cast steel purifying agent and production method thereof |
| 03/13/2013 | CN102965471A Method of molten steel deep dephosphorization in secondary refining process |
| 03/13/2013 | CN102965470A Smelting and pouring method of low-silicon and aluminum-controlled steel |
| 03/13/2013 | CN102965469A Smelting control method by utilizing inclusion of reoxides in steel |
| 03/13/2013 | CN102965468A Addition method of ferrovanadium in converter steelmaking |
| 03/13/2013 | CN102965466A Technology for improving slag pouring quantity of converter in stage of dephosphorization |
| 03/13/2013 | CN102965463A Efficient dephosphorization process for converter |
| 03/13/2013 | CN102312175B Method for manufacturing stainless steel plate used for thermonuclear fusion reactor |
| 03/13/2013 | CN102296157B Very low Ti control method of ultralow-carbon aluminum-silicon killed steel |
| 03/13/2013 | CN102199684B Production method of ultralow-oxygen titanium-containing ferrite stainless steel |
| 03/13/2013 | CN102181804B Steel plate for Class I nuclear key equipment and manufacturing method thereof |
| 03/13/2013 | CN102046829B 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 |
| 03/13/2013 | CN102031334B Inclusion control method for pipeline welding wire steel |
| 03/13/2013 | CN102021475B Preparation method of hot-rolled H-shaped steel for low temperature-resisting structure |
| 03/13/2013 | CN101956121B Manufacture process of high-pressure hydro-stainless steel valve casting |
| 03/13/2013 | CN101684513B Silicon-boron deoxidizer and using method |
| 03/06/2013 | EP2565286A1 Free-cutting stainless-steel material for precision processing and process for producing same |
| 03/06/2013 | EP2563946A1 Ferritic stainless steel, with high and stable grain refining potency, and its production method. |
| 03/06/2013 | CN202766604U Calcium-iron core-spun yarn |
| 03/06/2013 | CN1985012B Cored wire |
| 03/06/2013 | CN102954693A Method for constructing bottom groove circulating pipe of vacuum-circulating degassing furnace |
| 03/06/2013 | CN102952997A Wire rod for steel cord and its Al2O3 inclusion control method |
| 03/06/2013 | CN102952924A Metal rod for refining and purifying RH (Rockwell Hardness) molten steel |
| 03/06/2013 | CN102952923A Process for smelting aluminum containing steel through calcium carbide deoxidation |
| 03/06/2013 | CN102952922A Magnesium deoxidizer, and production method and use method thereof |
| 03/06/2013 | CN102952921A Refining method of high-speed tool steel |