| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 01/19/2011 | CN101948980A Method for producing industrial pure iron |
| 01/19/2011 | CN101948979A Method for producing industrial pure iron |
| 01/19/2011 | CN101948942A Novel desulfurization spray gun |
| 01/19/2011 | CN101947549A Production technology for inhibiting nickel-saving austenitic stainless steel hot-rolled plate edge crack |
| 01/19/2011 | CN101565771B Calcium treatment method for molten steel in steel making |
| 01/19/2011 | CN101428294B Method for shortening prescriptive period of high-carbon steel wire rod for drawing |
| 01/19/2011 | CN101372029B Crystallizer protecting residue and method of use thereof |
| 01/19/2011 | CN101323929B High strength steel plate for big thickness tall building structure and production method thereof |
| 01/13/2011 | WO2011004507A1 Mold flux for continuous casting of steel and method for continuous casting of steel using same |
| 01/12/2011 | EP2272991A1 Method and agent for treating raw iron desulphurisation slags |
| 01/12/2011 | CN201704355U Single-pipe circulation degassing device |
| 01/12/2011 | CN201704354U Single-pipe heating circulating degassing device |
| 01/12/2011 | CN201704353U Square steel ladle air brick |
| 01/12/2011 | CN201703912U High-efficiency wire feed guide tube |
| 01/12/2011 | CN101942597A Production method of gear steel |
| 01/12/2011 | CN101942543A Method for desulphurizing and refining medium and high carbon steel |
| 01/12/2011 | CN101942542A Cored wire and manufacturing method thereof |
| 01/12/2011 | CN101942541A Argon blowing and powder injection device and ladle refining furnace |
| 01/12/2011 | CN101942540A Novel inoculant for eliminating acicular structures and hardness difference of singly cast piston rings |
| 01/12/2011 | CN101941021A Method for producing extra-deep drawing cold-rolled steel plate based on ASP process |
| 01/12/2011 | CN101524947B High-performance stainless steel wheel hub of automobile and manufacturing method thereof |
| 01/12/2011 | CN101368224B Smelting method for medium-carbon stainless steel |
| 01/12/2011 | CN101245404B Air bubble thining and dispersion method in process of hot metal sublimation |
| 01/05/2011 | EP2270238A1 Cooling bed for slag and method for cooling slag |
| 01/05/2011 | CN201695060U Multifunctional vacuum chamber insert-tube maintenance vehicle |
| 01/05/2011 | CN201693167U Air curtain of leakage control steel for tundish |
| 01/05/2011 | CN201693164U Tundish dam with blowing function |
| 01/05/2011 | CN201693163U Middle bag slag dam with blowing function |
| 01/05/2011 | CN101935808A 130ksi steel-grade low-temperature drill rod with high toughness and corrosion resistance and manufacturing method thereof |
| 01/05/2011 | CN101935805A Grate bar and preparation method thereof |
| 01/05/2011 | CN101935803A As-cast state medium plate cold stamping die alloy steel and manufacturing process thereof |
| 01/05/2011 | CN101935741A Fluorine-free efficient compound scorification and slagging furnace burden |
| 01/05/2011 | CN101935740A White slag refining agent for LF (Ladle Furnace) refining furnace and preparation method thereof |
| 01/05/2011 | CN101935739A Metal cored wire with quick-connect structure |
| 01/05/2011 | CN101935738A Method for feeding silico-calcium core-spun yarn |
| 01/05/2011 | CN101934354A Low-alloy gray cast iron piston ring casting process |
| 01/05/2011 | CN101643811B Method for producing low-phosphorous molten iron by high-phosphorous reduced iron |
| 01/05/2011 | CN101597724B Alloy structural steel and production method thereof |
| 01/05/2011 | CN101597722B Multielement ferroboron resisting zinc liquid corrosion and preparation method thereof |
| 01/05/2011 | CN101560635B Technical method for producing heat-resisting alloy steel casting below 1100 DEG C |
| 01/05/2011 | CN101550516B Method for revolving furnace smelting 45CrMnMo steel |
| 01/05/2011 | CN101550472B Decreasing carbon method for producing high-purity silicon iron |
| 01/05/2011 | CN101532072B A desulfurizing agent and method for preparing same |
| 01/05/2011 | CN101519712B Ladle refining slag modifier, preparation method and slag modifying method |
| 01/05/2011 | CN101381844B Production technology of cold working die steel material |
| 01/04/2011 | CA2487879C Injection device and process for the injection of a fluid |
| 01/04/2011 | CA2367224C An austenitic stainless steel less crack-sensitive during forming and a manufacturing method thereof |
| 12/30/2010 | US20100326238 Compositions of matter: system ii |
| 12/30/2010 | US20100326237 Composition of matter tailoring: system i |
| 12/29/2010 | EP1431404B1 Method for refining molten iron containing chromium |
| 12/29/2010 | CN201686719U Insertion tube slag breaking device |
| 12/29/2010 | CN201686718U Liquid iron purification device |
| 12/29/2010 | CN101928894A High-strength weather resisting steel with Cu2-xS dispersed precipitates and manufacturing method thereof |
| 12/29/2010 | CN101928889A Steel for resisting sulfide corrosion and manufacturing method thereof |
| 12/29/2010 | CN101928885A Hydrothion corrosion resistant pipe steel and production method thereof |
| 12/29/2010 | CN101928877A Steel for petroleum casing pipe, high-frequency welding petroleum casing pipe and manufacturing method thereof |
| 12/29/2010 | CN101928874A Method for smelting steel round billet for automobile axle shaft sleeve by using converter process |
| 12/29/2010 | CN101928809A Method for modifying RH molten steel refined ladle slag |
| 12/29/2010 | CN101928808A Method for determining adding amount of alloy in RH refining process |
| 12/29/2010 | CN101928807A Method for refining high carbon molten steel by using low aluminum steel casting residue |
| 12/29/2010 | CN101928806A Composite slagging agent for semi-steel making and preparation method thereof and semi-steel making method |
| 12/29/2010 | CN101928805A Desulfurizing agent for furnace rear of converter |
| 12/29/2010 | CN101928804A Production method of austenitic stainless steel |
| 12/29/2010 | CN101928802A Slag conglomeration method for nodulizing ladle |
| 12/29/2010 | CN101928801A Blowing slag-removing equipment for molten iron pretreatment |
| 12/29/2010 | CN101665856B Steel-making deoxidizer and preparation method thereof |
| 12/29/2010 | CN101649374B Swirl flow nozzle of refining furnace |
| 12/29/2010 | CN101643888B Low welding crack sensitivity steel with tensile strength at 700MPa level and production method thereof |
| 12/29/2010 | CN101633972B Method for adding slag charge and alloy when alloying electric furnace steel tapping |
| 12/29/2010 | CN101591720B Method for producing aluminum-manganese-iron alloy |
| 12/29/2010 | CN101413084B Silicon-chromium-boron alloy wear resistant ball and manufacturing method thereof |
| 12/29/2010 | CN101338354B Phosphorus-containing coarse nickel iron refining dephosphorization method |
| 12/28/2010 | US7858020 Molten metal flow powered degassing device |
| 12/23/2010 | US20100319816 Thin gauge steel sheet excellent in surface conditions, formability, and workability and method for producing the same |
| 12/22/2010 | EP2262581A1 Device for adding fluid to a liquid |
| 12/22/2010 | EP1679384B1 Method for producing steel ingot |
| 12/22/2010 | CN201678699U Ladle anti-seepage argon blowing system |
| 12/22/2010 | CN201678698U Sectional type molten iron pretreatment spray gun |
| 12/22/2010 | CN201678697U Molten iron pretreatment spray gun |
| 12/22/2010 | CN201678694U Spray gun used for desulfuration of single blowing grain magnesium molten iron |
| 12/22/2010 | CN101925687A Steel for machine structural use with excellent machinability |
| 12/22/2010 | CN101925685A High-strength thick steel products excellent in toughness and weldability, high-strength ultra-thick h shape steel and processes for manufacturing both |
| 12/22/2010 | CN101921962A D-grade sucker rod steel and production method thereof |
| 12/22/2010 | CN101921952A Steel for petroleum casing pipe, electric resistance welding petroleum casing pipe and manufacture methods thereof |
| 12/22/2010 | CN101921944A High-vanadium anti-wear alloy and production method thereof |
| 12/22/2010 | CN101921895A Process for smelting ultra clean steel by single-nozzle refining furnace |
| 12/22/2010 | CN101921894A RH-VD double work position vacuum refining device and technological method thereof |
| 12/22/2010 | CN101921893A Solid calcium metal cored wire for deoxidation in steel making |
| 12/22/2010 | CN101921892A Calcium treatment method for molten steel in steelmaking |
| 12/22/2010 | CN101921890A Method for recycling manganese element of pour exceed steel ingot |
| 12/22/2010 | CN101435056B Novel low-cost free-cutting stainless steel 303C and manufacturing process thereof |
| 12/22/2010 | CN101397627B Fire resistant and weather resistant anti-shock steel and method for producing the same |
| 12/21/2010 | US7854784 treating molten calcium-silicate based slag with a molten ferrosilicon alloy; the phosphorous in the slag is transferred to the ferrosilicon alloy; removing a calcium-silicate based slag containing less than 3 ppmw phosphorous; for solar cells |
| 12/15/2010 | EP1914497B1 Electromagnetic agitator |
| 12/15/2010 | CN101914657A Improvement of molten iron pretreatment elbow spray gun structure and optimization of used refractory material |
| 12/15/2010 | CN101914656A Hot metal pretreatment long-service-life spray gun |
| 12/15/2010 | CN101914655A Method for manufacturing solid cored-wires made of high purity calcium metal |
| 12/15/2010 | CN101914654A Coolant for steel making with red mud and preparation process thereof |
| 12/15/2010 | CN101914652A Low-carbon and low-silicon steel deoxidation process |
| 12/15/2010 | CN101914648A Method for producing low-phosphorus molten iron by utilizing oxygen-enriched top blown to carry out melting reduction on high-phosphorus iron ore |