| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 03/21/2012 | CN101948980B Method for producing industrial pure iron |
| 03/21/2012 | CN101921890B Method for recycling manganese element of pour exceed steel ingot |
| 03/21/2012 | CN101798618B Method for performing vanadium increase and refining in vanadium alloying by utilizing vanadium slag |
| 03/21/2012 | CN101389772B Method of producing steel for high carbon steel wire material excellent in wire-drawability and fatigue characteristic |
| 03/20/2012 | US8137593 Composition of matter tailoring: system I |
| 03/14/2012 | EP2427581A1 Process for slag foaming a non-stainless steel melt in an electric arc furnace |
| 03/14/2012 | EP2099940B1 Method of regulating the output of carbon monoxide in a metallurgical melting process |
| 03/14/2012 | EP2036992B1 Steel for forging, process for producing the same, and forged article |
| 03/14/2012 | EP1848553B1 Wire for refining molten metal and associated method |
| 03/14/2012 | CN102373316A Control method of slag system of ladle refining furnace |
| 03/14/2012 | CN102373315A Manufacturing method for high-grade cold-rolled non-oriented silicon steel |
| 03/14/2012 | CN102373314A Method for adding rare earth into steel ladle |
| 03/14/2012 | CN101560586B Compound dephosphorization agent with converter slag as raw material and preparing method thereof |
| 03/08/2012 | WO2012027866A1 Multi-layer cored wire |
| 03/08/2012 | US20120055288 Method of Making a High Strength, High Toughness, Fatigue Resistant, Precipitation Hardenable Stainless Steel and Product Made Therefrom |
| 03/08/2012 | US20120055284 Process for producing semi-solidified slurry of iron alloy |
| 03/07/2012 | CN202157090U 一种易拆装人孔门 An easily removable Manhole |
| 03/07/2012 | CN202157089U Novel argon blowing pipe connector |
| 03/07/2012 | CN202157088U 一种aod炉 One kind aod furnace |
| 03/07/2012 | CN102367558A Boric low alloy wear resistant steel for pump |
| 03/07/2012 | CN102367545A A572Gr50 boron-added-steel steel plate and production method thereof |
| 03/07/2012 | CN102367542A Deformation aging performance-guaranteed S355K2-Z35 moderately thick plate and production method thereof |
| 03/07/2012 | CN102367508A Method for improving surface quality of hot rolled steel coils |
| 03/07/2012 | CN102367503A Method for controlling contents of phosphorus, sulfur and hydrogen in molten steel |
| 03/07/2012 | CN102367502A Molten steel deep dephosphorization process of ladle powder injection outside furnace |
| 03/07/2012 | CN101928807B Method for refining high carbon molten steel by using low aluminum steel casting residue |
| 03/07/2012 | CN101871083B Ultra-thick low-alloy high-strength Q345-series steel plate and production method thereof |
| 02/29/2012 | CN202152357U 自动喂丝控制装置 Automatic wire feeding control device |
| 02/29/2012 | CN102363869A Manufacturing method of free-cutting ferritic stainless steel 430FM |
| 02/29/2012 | CN102363828A Method for preventing longitudinal cracks of steel ingots by performing complex deoxidation by adding titanium and calcium into carbon structural steel and alloy structural steel |
| 02/29/2012 | CN102363824A Premelted dephosphorizer for hot metal dephosphorization and preparation method thereof |
| 02/29/2012 | CN101962702B Method for controlling non-metallic inclusions in steel |
| 02/29/2012 | CN101962701B LT-CAS (Control Automatic System) double-station vacuum refining device and process method thereof |
| 02/29/2012 | CN101942541B Argon blowing and powder injection device and ladle refining furnace |
| 02/29/2012 | CN101817689B Refractory castable for molten iron pretreatment spray gun |
| 02/28/2012 | US8124005 Process and apparatus for producing sponge iron |
| 02/22/2012 | EP2419543A1 Powder for a wire cored with sulfur, cored wire and method for manufacturing a cored wire using same |
| 02/22/2012 | EP1963541B1 An improved lance for ld steelmaking |
| 02/22/2012 | CN202148329U Steel ladle with low-position argon blowing connector |
| 02/22/2012 | CN102359626A Air brick protective valve |
| 02/22/2012 | CN102358913A Technical system of refined-smelting ladle furnace (LF) |
| 02/22/2012 | CN101538639B 含铬熔液的精炼装置 Chromium-containing molten metal refining apparatus |
| 02/22/2012 | CN101443464B 与钢生产有关的方法 Relating to the production method of the steel |
| 02/15/2012 | EP1707644B1 Method for producing high cleanliness steel excellent in fatigue strength or cold workability |
| 02/15/2012 | CN202144501U 用于钢水脱氧的铝三角条 Aluminum triangle strips for steel deoxidation |
| 02/15/2012 | CN102352469A Ultrahigh-strength vanadium-titanium composite microalloyed high carbon steel wire rod and preparation method thereof |
| 02/15/2012 | CN102352424A Production method of desulfurizing agent for deep desulfurization |
| 02/15/2012 | CN101892353B 一种镁基脱硫剂的制备方法 Method for preparing a magnesium based desulfurization agent |
| 02/15/2012 | CN101845537B 使用aod炉顶部氧枪参与还原脱硫工艺的方法 Use aod top gun involved in the reduction of oxygen furnace desulfurization methods |
| 02/15/2012 | CN101798662B 一种抗高温氧化性的篦条及其制备方法 A high-temperature oxidation resistance and its preparation method of anti-grate |
| 02/08/2012 | CN202139260U 用于传送吹气赶渣枪的机构 Mechanism for transferring the gun blowing slag rush |
| 02/08/2012 | CN202139259U 一种脱硫枪下枪孔气封结构 A desulfurization gun under the gun hole gas seal structure |
| 02/08/2012 | CN102345065A Strip steel for bridge and production method and system thereof |
| 02/08/2012 | CN102345063A Structural steel plate Q345Qdz35 steel for extra-thick bridge and production method thereof |
| 02/08/2012 | CN102345059A High strength low alloy structural normalizing A633GRD steel plate and production method thereof |
| 02/08/2012 | CN102345055A Weldable fine grain structural steel S355NL/S355NLZ35 steel plate and its production method |
| 02/08/2012 | CN102345053A Hot-rolled structural steel ST52 medium-thick plate with thickness of 15-60mm and production method thereof |
| 02/08/2012 | CN102345049A Low alloy Q345C-Z35 thick plate and production method thereof |
| 02/08/2012 | CN102345044A Q420GJE-Z35 steel plate used for high grade high-rise building and its production method |
| 02/08/2012 | CN102344997A High-calcium high-aluminum fluorine-free refining slags for producing high purity steel and refining method |
| 02/08/2012 | CN102344996A Aluminium-silica type refined pre-smelting slag |
| 02/08/2012 | CN102344995A Steel ladle with lower argon-blowing interface |
| 02/08/2012 | CN102344994A Desulfurization spray gun |
| 02/08/2012 | CN102344993A Method for changing property of foreign substance in molten steel |
| 02/08/2012 | CN102344992A Composite deoxidizer used in steelmaking and use method thereof |
| 02/08/2012 | CN102344991A Method for improving internal quality of casting blank |
| 02/08/2012 | CN102344990A Method for improving internal quality of steel plate |
| 02/08/2012 | CN102344989A Pretreatment method of molten iron for desulfurization by wire feeding method |
| 02/08/2012 | CN102344988A Method for smelting ultraclean steel by using energy-saving environment-friendly multifunctional continuous steelmaking furnace at low cost |
| 02/08/2012 | CN101805873B 一种低成本高强汽车大梁用钢及其制造方法 A low-cost high-strength steel for automobile frames and its manufacturing method |
| 02/08/2012 | CN101441187B 一种rh真空精炼顶枪喷粉测试装置及方法 One kind of vacuum refining rh top gun powder test device and method |
| 02/07/2012 | CA2662741C Steel plate for producing light structures and method for producing said plate |
| 02/07/2012 | CA2629879C Solid fuel combustion for industrial melting with a slagging combustor |
| 02/01/2012 | EP1728877B9 Process for producing low-alloy steel excelling in corrosion resistance |
| 02/01/2012 | CN202133295U 热顶盖氧化渣分离工具 Thermal oxidation residue separation tools cover |
| 02/01/2012 | CN202131330U 精炼炉吹氩用球墨铸铁水冷吊顶 Refining furnace cooled argon ductile iron ceiling |
| 02/01/2012 | CN202131329U 一种脱硫透气棒反吹清堵装置 A breathable cleaning rod block clearer desulfurization unit |
| 02/01/2012 | CN202131328U 浇钢包钢水喂丝机包芯线矫直装置 Water pouring steel clad wire feeding machine cored wire straightening device |
| 02/01/2012 | CN1938434B 与钢生产有关的方法 Relating to the production method of the steel |
| 02/01/2012 | CN102337463A 00Cr18Mo2 stainless steel pipe billet and manufacture method thereof |
| 02/01/2012 | CN102337431A Aluminum-manganese-calcium alloy |
| 02/01/2012 | CN102337380A Air leakage emergent treatment method for vacuum refining alloy blanking system |
| 02/01/2012 | CN102337379A Method for recycling ladle slag |
| 02/01/2012 | CN102337378A Process for removing non-metallic inclusions in molten steel |
| 02/01/2012 | CN102337377A Molten steel wire feeding device and wire feeding method |
| 02/01/2012 | CN102337371A Control method for enabling resulfurization amount of low-sulfur molten iron to be lower than 10ppm in smelting process of converter |
| 02/01/2012 | CN101748346B 一种高等级别耐磨钢板及其生产方法 Higher levels of one kind of wear-resistant steel and its production method |
| 02/01/2012 | CN101748333B 一种低碳当量高强度耐磨钢板及其生产方法 One kind of carbon equivalent high-strength wear-resistant steel and its production method |
| 02/01/2012 | CN101748246B 提高真空循环脱气炉插入管寿命的方法 Insertion tube method for improving the life cycle of vacuum degassing furnace |
| 02/01/2012 | CN101550473B 一种控制n80钢中氮含量的方法 A method of controlling the nitrogen content in steel n80 |
| 01/31/2012 | US8105415 Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment |
| 01/25/2012 | EP2410069A1 Si-killed steel wire rod and spring excellent in fatigue properties |
| 01/25/2012 | CN202124638U Dip pipe of steel refining furnace |
| 01/25/2012 | CN202123223U Calcium ingot smelting and pouring system |
| 01/25/2012 | CN102329922A Novel argon blowing pipe joint |
| 01/25/2012 | CN102329921A Semi-steel making method |
| 01/25/2012 | CN102329920A Method for smelting high-aluminum low-silicon ultra pure ferritic stainless steel |
| 01/25/2012 | CN102329919A Control method of form of nonmetallic inclusion in steel |
| 01/25/2012 | CN102329918A Widely applicable melting technology of free cutting steel containing lead |
| 01/25/2012 | CN102329917A Production method of clean steel |