| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
|---|
| 09/04/2013 | CN102453829B Free-machining pinion steel smelting method and free-machining pinion steel |
| 09/04/2013 | CN102218524B Novel energy-saving molten steel tank |
| 09/04/2013 | CN102102137B Method for reducing internal crack of high carbon steel continuous rolled billet |
| 09/04/2013 | CN102029305B Production method of ultra-thick steel plate |
| 09/04/2013 | CN102021271B Intermediate for adding superfine oxide into steel and preparation method |
| 09/04/2013 | CN101993976B Aluminium killed steel refined deoxidizing and desulfurizing synthetic slag |
| 09/03/2013 | US8524145 Method and device for introducing dust into a metal melt of a pyrometallurgical installation |
| 09/03/2013 | US8523977 Method of desulfurizing steel |
| 08/28/2013 | CN203163502U Vacuum refining furnace gunning vehicle |
| 08/28/2013 | CN203159664U Oxygen lance channel protective device |
| 08/28/2013 | CN203159663U Electromagnetic induction desulphurization hot metal ladle |
| 08/28/2013 | CN203159662U Solid pure-calcium composite-layer core-spun yarn |
| 08/28/2013 | CN103266287A Medium-carbon ferrite-pearlite non-quenched and tempered steel and manufacturing method thereof |
| 08/28/2013 | CN103266268A Casting method of vehicle brake drum |
| 08/28/2013 | CN103266202A Method for reducing ultra-low carbon steel flocculating flow |
| 08/28/2013 | CN103266201A Novel groove trolley locking mechanism |
| 08/28/2013 | CN103266200A Energy-saving environment-friendly RH (relative humidity) vacuum refining device |
| 08/28/2013 | CN103266199A Semisteel steelmaking slagging process and method |
| 08/28/2013 | CN103266198A Powder spraying desulfuration mechanism for performing RH (Ruhrstahl and Heraeus) on molten steel |
| 08/28/2013 | CN103266197A Compound calcium core-spun yarn and preparation method thereof |
| 08/28/2013 | CN102676740B Nano composite molten steel purifying agent and preparation method thereof |
| 08/28/2013 | CN102659432B RH gunning refractory |
| 08/28/2013 | CN102618698B Converter furnace steel-making desulfurizing agent and preparation method thereof |
| 08/28/2013 | CN102605140B Manufacturing method of molybdenum or vanadium oxide briquetting for steelmaking alloying |
| 08/28/2013 | CN102465229B Ferro-titanium alloying method for titaniferous stainless steel |
| 08/28/2013 | CN102399930B Method for reducing silicon increasing of low silicon and low aluminum killed steel |
| 08/28/2013 | CN102206732B Solid-core passivated pure calcium cored wire and manufacturing method thereof |
| 08/27/2013 | US8520714 Burner/injector panel apparatus |
| 08/22/2013 | US20130213184 Process For Making Low and Specified Hardenability Structural Steel |
| 08/21/2013 | EP2628806A1 Rh degassing lower vessel |
| 08/21/2013 | CN203144446U Insert tube for RH vacuum furnace |
| 08/21/2013 | CN203144445U Steel ladle argon blowing strength monitoring system based on vibration signals |
| 08/21/2013 | CN203144444U Decarburizing device |
| 08/21/2013 | CN203144443U Solid-core pure-calcium core-spun yam with powder interlayer |
| 08/21/2013 | CN203144442U Simply and convenient and quickly-replaced LF (Ladle Furnace) thread-feeding guiding pipe |
| 08/21/2013 | CN103255266A Bottom powder spraying/vacuum degassing molten steel refining device and method |
| 08/21/2013 | CN103255265A Bottom blowing and stirring method and bottom blowing and stirring device |
| 08/21/2013 | CN103255264A Method for removing phosphorus by utilizing LF (Ladle Furnace) |
| 08/21/2013 | CN103255263A Method for controlling Als in low carbon aluminum free steel |
| 08/21/2013 | CN103255259A Method of controlling molten steel pourability under condition of calcium-free treatment |
| 08/21/2013 | CN103255257A Method for improving yield ratio of ferrite-pearlite type non-quenched and tempered steel |
| 08/21/2013 | CN102586546B Process for preparing low-carbon low-silicon-aluminium killed steel |
| 08/21/2013 | CN102534122B Ultrapure smelting method of low-alloy high-strength steel |
| 08/21/2013 | CN102430749B Elliptical steel ladle and manufacturing method thereof |
| 08/15/2013 | WO2013117498A1 Ga purging plus comprising wear indicator |
| 08/15/2013 | WO2013057262A3 Desulfurization agent containing bitumen, method for the production thereof, and use thereof |
| 08/14/2013 | CN103243271A Preparation method of high-toughness drilling tool |
| 08/14/2013 | CN103243268A High-quality H13 rear earth mold steel and production method thereof |
| 08/14/2013 | CN103243263A High-cleanliness low-carbon and low-silicon welding steel wire and preparation method of same |
| 08/14/2013 | CN103243261A Fire-resistant steel of ocean platform with excellent anti-fatigue performance and production method thereof |
| 08/14/2013 | CN103243256A Method for controlling titanium content in high-carbon steel and production method of tire cord steel |
| 08/14/2013 | CN103243199A Induction furnace and process for refining extra-low-carbon stainless steel by adopting same |
| 08/14/2013 | CN103243198A Compound desulphurizer |
| 08/14/2013 | CN103243197A Novel direct continuous casting slag washing mixed material and preparation process thereof |
| 08/14/2013 | CN103243196A Purified smelting method of adding rare earth in intermediate frequency furnace |
| 08/14/2013 | CN103243195A Smelting process of steel ingot for wind power generating motor shaft with high performance |
| 08/14/2013 | CN103243194A Method for optimizing steel structure by adding nano particles into steel liquid |
| 08/14/2013 | CN103243192A Converter smelting method for rapidly and efficiently dephosphorizing low-basicity dephosphorization slag |
| 08/14/2013 | CN103240407A Novel ladle |
| 08/14/2013 | CN102634643B Method for controlling nitrogen content of high-permeability-grade oriented electrical steel belt |
| 08/14/2013 | CN102443681B Granulated magnesium molten iron desulphurization spray gun |
| 08/14/2013 | CN102329921B Semi-steel making method |
| 08/14/2013 | CN102312157B Cold-rolled TRIP steel at over 1000 MPa and preparation method thereof |
| 08/13/2013 | CA2595989C Wire for refining molten metal and associated method of manufacture |
| 08/08/2013 | DE102012100920A1 Silver alloy, useful for preparing jewelry, comprises silver, and alloying additive comprising copper, zinc and boron |
| 08/07/2013 | CN203112866U Combined brick for feeding port of vacuum refining furnace |
| 08/07/2013 | CN203112865U Device for producing low-nitrogen carburant for smelting of clean steel |
| 08/07/2013 | CN203112864U BJ molten steel cleaning agent |
| 08/07/2013 | CN203112852U Online slag iron separating device |
| 08/07/2013 | CN103233098A Novel direct slag-feeding washing mixed material application method in converter tapping process |
| 08/07/2013 | CN103233097A Argon oxygen decarburization (AOD) furnace capable of shortening stainless steel refining time and method of furnace |
| 08/07/2013 | CN103233096A Low-carbon deep-desulfurization refining method of LF (ladle refining) furnace |
| 08/07/2013 | CN103233095A Complex deoxidizer as well as preparation method and application thereof |
| 08/07/2013 | CN103233094A Smelting process of high-strength alloy steel |
| 08/07/2013 | CN103233093A Ferrovanadium alloy core-spun thread |
| 08/07/2013 | CN103233092A Process for smelting steel special for corrosion-resistant heat exchanger |
| 08/07/2013 | CN102649989B Multi-alloy step feed device for metallurgy smelting |
| 08/06/2013 | US8500909 Apparatus for flattening coating material and evaporation deposition device having same |
| 07/31/2013 | CN203096117U Integrated dipping tube of RH vacuum refining device |
| 07/31/2013 | CN203096116U Anti-blocking gun barrel for performing material supplement on relative-humidity (HR) vacuum chamber |
| 07/31/2013 | CN203096115U AOD (argon oxygen decarburization) furnace and top and bottom combined blown converter interchanging device |
| 07/31/2013 | CN203096114U Swing arm type molten iron top-blowing device |
| 07/31/2013 | CN203096113U Molten aluminum-based alloy component homogenizing device |
| 07/31/2013 | CN203096109U Automatic replacement device for steel-making measuring probes |
| 07/31/2013 | CN203096107U Blowing desulfurization spray gun for torpedo ladle |
| 07/31/2013 | CN103225010A Method for preventing molten steel of high nitrogen steel from spraying |
| 07/31/2013 | CN103225009A Method for producing high-cleanness steel |
| 07/31/2013 | CN103225008A Method for preventing caking in crystallizer and nozzle clogging during process for smelting titanium-containing stainless steel |
| 07/31/2013 | CN102808065B Method for argon-oxygen refining low-phosphorus ferrochrome |
| 07/31/2013 | CN102634732B Smelting method of high-carbon chromium bearing steel |
| 07/31/2013 | CN102618795B Smelting process of nitrogenous high alloy heat-resistant steel ZG3Cr24Ni7N |
| 07/31/2013 | CN102559985B Method of smelting low-phosphorus steel through converter |
| 07/31/2013 | CN102534398B Ferroboron-containing alloy wear-resistant material and preparation method thereof |
| 07/31/2013 | CN102443685B Method for constructing middle trough lining of vacuum chamber of vacuum circulating degasification furnace |
| 07/31/2013 | CN102400030B Method for adding nitrogen element into smelting molten steel of vacuum induction furnace |
| 07/31/2013 | CN102399945B Method for producing non-quenched and tempered N80 petroleum tube by RH refining technology |
| 07/31/2013 | CN102162068B Spring steel and manufacturing and thermal treatment method thereof |
| 07/31/2013 | CN101993974B Method for preparing pure iron with extremely low gas content |
| 07/30/2013 | CA2544695C Thin gauge steel sheet and method for producing the same |
| 07/24/2013 | CN203080012U Mechanical vacuum pump refining furnace system |