| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 09/01/2010 | CN101302577B MgO-based desulfurizer based on self-propagating and preparation thereof |
| 09/01/2010 | CN101245399B Method for applying scorification material supplementary material to convertor steelmaking |
| 09/01/2010 | CN101037714B Molten iron desulfurization stir head |
| 08/31/2010 | US7785393 Refinement of steel |
| 08/25/2010 | CN101812646A High-speed steel alloy casting process used for roll |
| 08/25/2010 | CN101812643A Boracic pinion steel and preparation method thereof |
| 08/25/2010 | CN101812568A Kalzium metal for deoxidization during steel making |
| 08/25/2010 | CN101812567A Rare earth processing method in aluminum-series and manganese series ferroalloy deoxidant production process |
| 08/25/2010 | CN101811180A System device for adding rare earth into continuous casting tundish and adding method |
| 08/25/2010 | CN101811076A Composite toothed plate and casting method thereof |
| 08/25/2010 | CN101619380B Drawable gas permeable brick |
| 08/25/2010 | CN101491829B Casting technique of grain refined solid manganese steel frog of long life |
| 08/25/2010 | CN101445888B Method for producing ductile cast iron by taking iron slag taken out by molten iron when pretreating slag skimming as material |
| 08/25/2010 | CN101186955B Multifunctional oxygen gun electromechanical protection mechanism |
| 08/24/2010 | US7780906 Method for controlling a molten metal bath bubbling in a metallurgical vessel and a device for carrying out said method |
| 08/18/2010 | EP2217732A1 Device for secondary and vacuum metallurgical treatment of liquid steel |
| 08/18/2010 | CN201553753U Reducing gas injection pipe used for dipping pipe of RH refining furnace |
| 08/18/2010 | CN201553484U Desulfurizing agent delivery device |
| 08/18/2010 | CN101805873A Low-cost and high-strength steel for automobile crossbeam and manufacturing method thereof |
| 08/18/2010 | CN101805869A Boron-contained high-chromium high-speed steel roller material and heat treatment method thereof |
| 08/18/2010 | CN101805818A Method for removing titanium from ladle by using stirring method |
| 08/18/2010 | CN101805817A Method for smelting ultra-low hydrogen steel by using single-nozzle refining furnace |
| 08/18/2010 | CN101805816A Ladle slag activator and application thereof |
| 08/18/2010 | CN101805815A Microalloyed cored wire for improving corrosion resistance of steel |
| 08/18/2010 | CN101805813A Stirring head for molten iron desulphurization |
| 08/18/2010 | CN101435058B Economical austenitic stainless steel and technique for producing the same |
| 08/18/2010 | CN101323898B Oxygen one-step impurity removing refining method for raw ferro nickel |
| 08/17/2010 | US7776253 Installation for supplying materials into metallurgical unit |
| 08/17/2010 | US7776162 Steels with few alumina clusters |
| 08/11/2010 | EP2215275A2 Rotary lance |
| 08/11/2010 | CN201548055U Cooling furnace cover of LF furnace |
| 08/11/2010 | CN201548054U Casing patch cylinder for dip pipe of refining furnace |
| 08/11/2010 | CN201548051U Anti-leakage locking mechanism for externally-installed split type air brick |
| 08/11/2010 | CN201545878U Three-station vacuum induction ladle refining furnace |
| 08/11/2010 | CN201545877U Multi-pipe wire feed device |
| 08/11/2010 | CN201545866U Multi-nozzle spray gun for removing sulfur in molten iron |
| 08/11/2010 | CN101798662A High temperature oxidation resistant grid section and preparation method thereof |
| 08/11/2010 | CN101798659A Low-carbon low-phosphorus nickel-chromium-iron alloy used for stainless acid resistant steel and preparation method thereof |
| 08/11/2010 | CN101798618A Method for performing vanadium increase and refining in vanadium alloying by utilizing vanadium slag |
| 08/11/2010 | CN101798617A Stainless steel dephosphorization carburant |
| 08/11/2010 | CN101798616A Arc furnace steel-making method capable of effectively preventing steel part surface from cracking |
| 08/11/2010 | CN101798612A Process for washing, pre-desulfurizing and refining tapping steel slag of converter |
| 08/11/2010 | CN101525718B Alloying process for stably and precisely controlling molybdenum content in steel |
| 08/11/2010 | CN101418365B Magnesia-alumina-ferroalloy preparation method |
| 08/11/2010 | CN101413044B Alloy addition method for improving yield of ferromolybdenum |
| 08/11/2010 | CN101403071B High-alloy hot work steel producing method |
| 08/11/2010 | CN101397633B Sulphur and copper-containing free-cutting stainless steel and preparation method thereof |
| 08/11/2010 | CN101368249B Steel for boiler and method of producing the same |
| 08/11/2010 | CN101353753B Ultra-low carbon high-purity industrial pure iron and manufacturing method thereof |
| 08/11/2010 | CN101008041B Welding-free high temperature-resistant coating oxygen blowpipe |
| 08/04/2010 | EP2213753A1 Method of production of a slag-forming compound for secondary steel refining in a ladle or ladle furnace |
| 08/04/2010 | CN201538789U Novel steelmaking wire-feeding conveying device |
| 08/04/2010 | CN201538788U Alumina slag ball forming device |
| 08/04/2010 | CN201538787U Alumina slag ball continuous production equipment |
| 08/04/2010 | CN101792888A High-strength weathering steel and method for producing same |
| 08/04/2010 | CN101792885A Hot-rolled round steel for high carbon manganese and chrome grinding ball and method for producing same |
| 08/04/2010 | CN101792884A Steel with underrelaxation and hydrogen corrosion resistance for high-speed railway prestressed pull rod and production method thereof |
| 08/04/2010 | CN101792846A Rare-earth-containing iron and steel modificator and preparation method thereof |
| 08/04/2010 | CN101792845A Method for smelting ultra-low-carbon steel by using single-nozzle refining furnace |
| 08/04/2010 | CN101792843A Production process of Nb-containing mill coil for automobile |
| 08/04/2010 | CN101215671B Material capable of resisting zinc solution corrosive wear and manufacturing method thereof |
| 08/03/2010 | CA2651258C Refractory nozzle |
| 07/28/2010 | CN201535634U Fining furnace bleed-out alarm device |
| 07/28/2010 | CN201534865U 一种rh精炼用插入管 One kind rh refining insertion tube |
| 07/28/2010 | CN201534864U 一种维护真空循环脱气炉底部槽的喷补机 A low-maintenance vacuum degassing furnace bottom slot machine gunning |
| 07/28/2010 | CN201534863U Lf用钢液吹气枪 Lf steel liquid blowing gun |
| 07/28/2010 | CN201534862U 氩氧脱碳炉内衬烘烤装置 Argon oxygen decarburization furnace lined baking equipment |
| 07/28/2010 | CN201534861U 转炉脱磷氧枪喷头 Dephosphorization oxygen lance nozzle |
| 07/28/2010 | CN101787493A Novel high-strength, fatigue-resistant and non-decarburized alloy spring steel and preparation method of steel wire thereof |
| 07/28/2010 | CN101787491A Drahtstahl for high strength fastening piece and production method thereof |
| 07/28/2010 | CN101787490A Micro-alloyed steel Q345R |
| 07/28/2010 | CN101787489A Easy-welding low-carbon bainitic steel and manufacturing method thereof |
| 07/28/2010 | CN101787452A Preparation method of aluminum-calcium alloy used for vacuum refining molten steel deoxidation and device thereof |
| 07/28/2010 | CN101787414A Complex deoxidizer for steelmaking and preparation method thereof |
| 07/28/2010 | CN101787413A Granular heat-preserving covering flux for hot metal in steelmaking |
| 07/28/2010 | CN101787403A Short process production technique for preparing casting of wind power generation equipment |
| 07/28/2010 | CN101786159A Slant-insert type molten iron pretreatment lance and manufacturing method thereof |
| 07/28/2010 | CN101391288B Tundish covering agent for smelting low-carbon high-cleanliness steel |
| 07/28/2010 | CN101323897B Air one-step impurity removing and refining method for raw ferro nickel |
| 07/21/2010 | EP2208799A1 Steel for steel pipes excellent in sour resistance and process for manufacturing the same |
| 07/21/2010 | CN1867685B Method for producing steel ingot |
| 07/21/2010 | CN1784500B Gas bubbling element and corresponding gas flushing device |
| 07/21/2010 | CN101784680A Steel for steel pipes excellent in sour resistance and process for manufacturing the same |
| 07/21/2010 | CN101782330A Method for processing and building overhauling working lining bricks of vertical type vacuum refining furnace hearth |
| 07/21/2010 | CN101781697A Liquid iron pretreatment dephosphorizing agent |
| 07/21/2010 | CN101545067B Method for producing pipe line steel J55 by RH refining technology |
| 07/21/2010 | CN101532071B Converter dephosphorization complex slag former and slagging technology |
| 07/21/2010 | CN101323927B Method for producing high-temperature alloy by induction heating vacuum refining |
| 07/15/2010 | US20100175508 High temperature alloys |
| 07/14/2010 | CN201525863U Dip pipe of refining furnace with single nozzle |
| 07/14/2010 | CN201525862U Novel insert tube for RH vacuum device |
| 07/14/2010 | CN201525861U Device capable of preventing downfall of air-breathing core in ladle bottom-blowing process |
| 07/14/2010 | CN201525860U Alloy material adding electric vibration feeding device |
| 07/14/2010 | CN201525854U Anti-slag-splashing protective structure of extreme cable |
| 07/14/2010 | CN101775560A Nickel-saving austenitic stainless steel and production method thereof |
| 07/14/2010 | CN101775557A Low-carbon boron-containing mild steel and preparation method thereof |
| 07/14/2010 | CN101775554A High strength anti-fatigue and atmospheric corrosion resistant medium plate and manufacture method thereof |
| 07/14/2010 | CN101775551A Manufacture method of novel marine corrosion resistance stainless steel and steel cable thereof |
| 07/14/2010 | CN101775549A Iron-based rare earth high-chromium wear-resistant welded steel spherical elbow |
| 07/14/2010 | CN101775546A High strength boron-containing cold heading steel for fastener and preparation process thereof |