| Patents for C22C 33 - Making ferrous alloys (11,268) |
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| 05/23/2012 | CN102465239A 一种提高高硫含量不锈钢硫收得率的方法 A method for stainless steel high sulfur content of sulfur yield improvement |
| 05/23/2012 | CN102465238A Method for reducing stainless steel welding wire blank material hot-rolled corner crack defect |
| 05/23/2012 | CN102465237A 耐腐蚀合金砂及其制备方法 Corrosion resistant alloy sand and its preparation method |
| 05/23/2012 | CN102465234A 一种低合金n80钢级实体可膨胀管材料的制备方法 A low alloy steel grade entity n80 expandable tubing material preparation methods |
| 05/23/2012 | CN102465233A 高铜低镍钼合金材料 High copper low nickel-molybdenum alloys |
| 05/23/2012 | CN102465229A Ferro-titanium alloying method for titaniferous stainless steel |
| 05/23/2012 | CN102465228A 一种利用铁合金炉渣冶炼成的合金钢 A use of ferroalloy smelting slag into steel |
| 05/23/2012 | CN101967596B Method for preparing high-performance rare earth-FeCoSi compound with NaZn 13 structure |
| 05/23/2012 | CN101899603B Method for preparing stainless steel |
| 05/22/2012 | CA2526886C Iron base sintered alloy having highly densified and hardened surface, and producing method thereof |
| 05/18/2012 | WO2012026725A3 Method for preparing ferromolybdenum alloy briquette from powder mixture of mill scale and molybdenum oxide powder through solid-gas reaction, and briquette prepared by same |
| 05/17/2012 | US20120119134 Soft magnetic powdered core and method for producing same |
| 05/16/2012 | CN102453841A Steel used for sea oil extraction platform R4S grade mooring chain and its manufacture method |
| 05/16/2012 | CN102453838A High-strength non-oriented electrical steel with high magnetic induction and manufacturing method thereof |
| 05/16/2012 | CN102453836A Method for preparing powder metallurgy high-alloy steel material |
| 05/16/2012 | CN102453835A Method for preparing high-performance composite material |
| 05/16/2012 | CN102453834A Method for preparing high-performance iron matrix composite material |
| 05/16/2012 | CN102453832A Preparation method of cast iron |
| 05/16/2012 | CN102453831A Method for smelting high-chromium steel and high-chromium steel |
| 05/16/2012 | CN102453830A Preparation method of cast steel |
| 05/16/2012 | CN102453829A Free-machining pinion steel smelting method and free-machining pinion steel |
| 05/16/2012 | CN102453828A Method for preparing iron matrix composite material |
| 05/16/2012 | CN102453827A Preparation method of powdered metallurgic iron-based material |
| 05/16/2012 | CN102453826A Method for preparing powder metallurgy composite material |
| 05/16/2012 | CN102453825A Method for preparing cutting tool material |
| 05/16/2012 | CN102453824A Method for producing nickel-iron alloy by using laterite nickel mine |
| 05/16/2012 | CN102453786A Method for smelting steel for drill rod joint by using rotating furnace, and steel for drill rod joint |
| 05/10/2012 | US20120112862 Rare earth magnet and method for manufacturing same |
| 05/09/2012 | EP2334456B1 Free-machining powder metallurgy lead-free steel articles and method of making same |
| 05/09/2012 | CN202214376U Stream inoculation device of melting lauder of electric furnace and electric furnace with same |
| 05/09/2012 | CN102447357A Preparation method capable of improving processability for sintered neodymium-iron-boron for motor |
| 05/09/2012 | CN102447316A Sintered neodymium-iron-boron used by electric machine for improving processing performance |
| 05/09/2012 | CN102447315A Neodymium-iron-boron magnet used by high speed electric machine |
| 05/09/2012 | CN102443740A Alloy steel nitride and manufacture method thereof |
| 05/09/2012 | CN102443739A Sintered material for valve guides and production methods therefor |
| 05/09/2012 | CN102443738A Sintered material for valve guides and production method therefor |
| 05/09/2012 | CN102443737A Sintered material for valve guides and production method therefor |
| 05/09/2012 | CN102443734A Non-oriented electrical steel plate without corrugated defect and its manufacturing method |
| 05/09/2012 | CN102443731A Three-wire rotary controlled-speed wire feeding machine |
| 05/09/2012 | CN102061423B Compound processing method of boron-containing high-speed steel roller material |
| 05/09/2012 | CN101905312B Process for casting U-shaped frame of wind power generation equipment |
| 05/08/2012 | US8173093 Iron silicide sputtering target and method for production thereof |
| 05/03/2012 | WO2012057593A1 Method for melting high-carbon ferrochrome |
| 05/02/2012 | EP2446984A1 Powder metallurgical material, production method and application thereof |
| 05/02/2012 | CN202208753U Cupola furnace and electric furnace mixed smelting device |
| 05/02/2012 | CN1938795B Rare-earth magnet and its manufacturing method |
| 05/02/2012 | CN102439189A High strength low alloyed sintered steel |
| 05/02/2012 | CN102433517A High-temperature and high-sulfur wear-resistant alloy and application thereof |
| 05/02/2012 | CN102433511A Process for manufacturing steel blanks |
| 05/02/2012 | CN102433510A Iron-based powder metallurgy alloy with high strength and high toughness and preparation method thereof |
| 05/02/2012 | CN102433509A 780MPa-grade cold-rolled hot-dip galvanized dual-phase steel and preparation method thereof |
| 05/02/2012 | CN102433508A Super-high manganese lining board of ball mill and preparation method thereof |
| 05/02/2012 | CN102433504A Steel for medium/heavy duty vehicle gear shaft blank in cross wedge rolling process and preparation method thereof |
| 05/02/2012 | CN102433503A Wind power flange alloy steel and preparation technology of parts thereof |
| 05/02/2012 | CN102433499A S275NL high strength and toughness ultrafine grain structural steel medium plate and its production method |
| 05/02/2012 | CN102433494A High-strength low-stress cast iron material and preparation process thereof |
| 05/02/2012 | CN102433492A Low-rare-earth vermiculizer |
| 05/02/2012 | CN102433491A Novel wire feeding method in casting process |
| 05/02/2012 | CN102433490A Spheroidization process for large-scale nodular iron castings |
| 05/02/2012 | CN102433410A Aluminum-containing desulfurizing agent and desulfurizing process |
| 05/02/2012 | CN102430582A Roll sleeve of ultra-strong wear-resistant high alloy steel roll squeezer and manufacturing method roll sleeve |
| 05/02/2012 | CN101928892B Spring steel round steel and production process thereof |
| 05/02/2012 | CN101928872B Production method of low-magnetic iron castings |
| 05/02/2012 | CN101684536B Iron system sintered bearing and method for producing the same |
| 05/02/2012 | CN101671109B Bimetallic glass mould of copper and stainless steel and preparation method thereof |
| 05/01/2012 | US8168117 ti-v-cr-alloy powder includes an amount of carbon that is suitable for resisting formation of an alpha-titanium phase within the member at elevated temperatures and strengthening the member to resist cracking during hot working; powder metallurgy |
| 04/26/2012 | WO2012029274A3 Iron-based mixture powder for sintering and iron-based sintered alloy |
| 04/25/2012 | EP2444182A1 Sintered material for valve guides and production method therefor |
| 04/25/2012 | EP1528113B1 Method for producing dispersed oxide reinforced ferritic steel having coarse grain structure and being excellent in high temperature creep strength |
| 04/25/2012 | CN202201951U 一种熔炼转包机构液压传动系统 One kind of melting subcontracting agencies hydraulic transmission |
| 04/25/2012 | CN202201950U 一种高纯钛铁生产设备 High-purity titanium-iron production equipment |
| 04/25/2012 | CN1796577B A slag conditioner composition, process for manufacture and method of use in steel production |
| 04/25/2012 | CN102425943A 全封闭氮气保护推舟式隧道炉 Closed push the boat nitrogen tunnel furnace |
| 04/25/2012 | CN102424930A 一种冷激铸铁零件的制造工艺 A manufacturing process chilled cast iron parts |
| 04/25/2012 | CN102041428B 兆瓦级风电机组箱体的铸造方法 Megawatt wind turbine casting box |
| 04/25/2012 | CN101934351B 一种混凝土输送泵油压水箱的制作工艺 Production process for concrete delivery pump hydraulic tank |
| 04/25/2012 | CN101845602B 一种高性能耐候建筑结构用钢及其制造方法 A high performance weathering steel building structure and its manufacturing method |
| 04/25/2012 | CN101514427B High strenght steel sheet having superior ductility and method for manufacturing the same |
| 04/18/2012 | EP2441853A1 Method for producing tools from steel alloy and tools, in particular for machining metal |
| 04/18/2012 | CN202193832U 一种铁硅铝合金的熔炼、浇铸装置 An iron-silicon aluminum smelting, casting device |
| 04/18/2012 | CN102418041A Production method for bearing steel |
| 04/18/2012 | CN102418037A Hot-rolled H-section steel with lamellar tearing resistance and manufacturing method thereof |
| 04/18/2012 | CN102418034A 一种高牌号无取向硅钢的生产方法 A high-grade non-oriented silicon steel production methods |
| 04/18/2012 | CN102418031A 硅铁合金及其制造方法 Silicon alloy and its manufacturing method |
| 04/18/2012 | CN102418028A Impeller special for automobile cooling water pump and casting process of impeller |
| 04/18/2012 | CN102418027A 硅铁合金反应炉 Silicon alloy reactor |
| 04/18/2012 | CN102416462A 一种局部增强的金属基复合材料的制备方法 Preparation of a topical reinforced metal matrix composites |
| 04/18/2012 | CN102011059B 一种低硅低锰超纯转子钢冶炼工艺方法 A low silicon low manganese steel smelting process for ultrapure rotor |
| 04/18/2012 | CN101899605B 耐磨合金铸钢的熔炼工艺 Wear-resistant alloy cast steel smelting process |
| 04/18/2012 | CA2755067A1 Method for the production of tools made of alloyed steel and tools in particular for the chip-removing machining of metals |
| 04/17/2012 | US8157889 Magnetic metal powder and method of producing the powder |
| 04/12/2012 | DE10110938B4 Verfahren zum Pressen eines magnetischen Seltenerdmetall-Legierungspulvers A method for pressing a magnetic rare earth alloy powder |
| 04/11/2012 | CN102409265A Alloy steel for rail frog |
| 04/11/2012 | CN102409240A 抗硫化氢腐蚀石油钻杆用钢及其制造方法 Hydrogen sulfide corrosion resistant steel drill pipe and its manufacturing method |
| 04/11/2012 | CN102409237A Open-porous metal foam body and a method of fabricating the same |
| 04/11/2012 | CN102409230A 一种大线能量焊接热影响区韧性优良的钢板及其制造方法 One kind of large heat HAZ toughness fine steel and its manufacturing method |
| 04/11/2012 | CN102409226A 一种包装用钢带及其生产方法 A package with a strip and its production method |
| 04/11/2012 | CN102409220A High-strength vermicular cast iron and preparation method thereof |
| 04/11/2012 | CN102409219A 基于载流子控制技术制备抗hic应力开裂钢的方法 Control technologies based carrier stress cracking steel preparation of anti-hic methods |
| 04/11/2012 | CN102409218A 中频感应电炉与工频炉熔炼工艺 IF induction furnace and frequency furnace melting process |