Patents for C22C 33 - Making ferrous alloys (11,268)
06/2005
06/15/2005CN1206067C Method of controlling and monitoring composition of sintering atmosphere
06/15/2005CN1206061C Method for increasing creep rate of compacted graphite cast iron by electromagnetic field
06/14/2005US6905530 Metallic powder-molded body, re-compacted body of the molded body, sintered body produced from the re-compacted body, and processes for production thereof
06/09/2005US20050123432 Method of producing powder metal parts
06/08/2005EP1537929A1 Metal powder for powder metallurgy and iron-based sintered compact
06/08/2005CN1624464A 磁共振成像扫描器 Magnetic resonance imaging scanner
06/08/2005CN1624181A Strongtough high gilicon cast steel and its manufacturing method
06/08/2005CN1624179A Dot graphite cast iron and its production method
06/08/2005CN1624178A Preparation method of high hardness, corrosion-resistant alloy material
06/02/2005US20050118053 Economical production of precision parts; higher density; uniformity; utilizing lubricant that liquifies under pressure and evaporates when heated
06/01/2005EP1536028A2 Alloy powder for forming hard phase and ferriferous mixed powder using the same, and manufacturing method for wear resistant sintered alloy and wear resistant sintered alloy
06/01/2005EP1536027A1 Raw or granulated powder for sintering, and sintered compacts therefrom
06/01/2005EP1199124B1 Lubricant for die lubrication and method for producing high density product of forming of iron base powder
06/01/2005EP1117499B1 Warm compaction of steel powders
06/01/2005CN1621551A Raw or granulated powder for sintering, and their sintered compacts
06/01/2005CN1621550A Method for preparing specific squareness ratio nanocrystalline soft magnetic material without magnetic field treatment
05/2005
05/26/2005US20050112375 Metallurgical powder compositions and articles and methods utilizing the same
05/26/2005US20050109431 Infiltrating a powder metal skeleton by a similar alloy with depressed melting point exploiting a persistent liquid phase at equilibrium, suitable for fabricating steel parts
05/26/2005US20050109157 Raw or granulated powder for sintering, and their sintered compacts
05/25/2005CN2701872Y Hot metal desulfurization lance
05/25/2005CN1202931C Manufacturing method of diffused alloy steel powder
05/24/2005US6896847 Steel alloy plastic moulding tool and tough-hardened blank for plastic moulding tools
05/19/2005US20050106057 Powder metallurgy; diamond tools
05/19/2005US20050103161 Of high-tensile steel plate to produce good quality of cast iron; high tensile strength and ordinary steel plate or melted together, and a spheroiding agent is added, which contains no rare earth element but does contain bismuth
05/18/2005CN1616700A Steel for processing movement limiting core stick of continuous tube grimper and its producing process
05/18/2005CN1616699A Method of manufacturing oxide dispersion strengthened martensitic steel excellent in high-temperature strength
05/18/2005CN1616698A High temperature wear resistant alloy
05/18/2005CN1202537C Method of preparing samarium iron nitrogen permanent amgnet material using mechanical alloying
05/18/2005CN1202272C Apparatus for producing low-carbon manganese-iron using manganese-rich slag
05/12/2005US20050098238 Preparing multiple types of rare earth alloy materials including respective main phases having different HR mole fractions, mixing the alloy materials so that the sintered compact, permanent magnet
05/11/2005CN1614070A Preparation for block amorphous nanometer crystal double-phase composite soft magnetic alloy
05/11/2005CN1614043A Production of Si-Al-Fe alloy in 35000KVA mine heating furnace
05/11/2005CN1201021C Method for producing sponge iron, and reduced iron powder and method for production thereof
05/10/2005US6890971 Method for making radiation absorbing material (RAM) and devices including same
05/10/2005US6890368 Selected from martensitic stainless steel containing particles of boron nitride, a cobalt based alloy containing particles of boron nitride and/or graphite, nickel or alloy containing particles of graphite; bushing, pivot, spindle
05/06/2005WO2005040441A1 Improved wear resistant alloy
05/06/2005CA2585499A1 Improved wear resistant alloy
05/05/2005US20050095163 Production method for sintered component made of stainless steel with high corrosion resistance
05/04/2005EP1528114A1 Free-cutting steel and fuel injection system component using the same
05/04/2005EP1528113A1 Method for producing dispersed oxide reinforced ferritic steel having coarse grain structure and being excellent in high temperature creep strength
05/04/2005EP1528112A1 Dispersed oxide reinforced martensitic steel excellent in high temperature strength and method for production thereof
05/04/2005CN1611626A Free-cutting steel and fuel injection system component using the same
05/04/2005CN1611614A Method for manufacturing tool die steel plate produced by converter
05/04/2005CN1200131C Non-tempered superhigh carbon steel production
05/04/2005CN1200128C Method for preparing Fe-6.5 wt% Si compound block material with plasticity deformability
05/04/2005CN1199750C Metal sintered body composite material and method for reproducing the same
04/2005
04/28/2005WO2005038065A1 Fe-Al-C SINTERED ALLOY VALVE SHEET HAVING EXCELLENT OXIDATION RESISTANCE AT HIGH TEMPERATURE AND HIGH STRENGTH
04/28/2005US20050089437 Free-cutting steel and fuel injection system component using the same
04/28/2005CA2541855A1 Method for the manufacturing of sintered metal parts having a densified surface
04/27/2005EP1370704B1 Process of production of a sintered ferrous material containing copper
04/27/2005EP1200637B1 Powder metallurgy manufactured high speed steel
04/27/2005CN1609257A Acicular constituent high strength weathering resistant steel and producing method thereof
04/27/2005CN1609256A Powder metallurgy steel rolling guide roll and producing method thereof
04/27/2005CN1609255A Process for producing rotary drill creeper tread material
04/27/2005CN1608770A Casting method of iron casting with water-cooled copper mold
04/27/2005CN1198952C Rare-earth alloy material, its preparing process and its application as cathode in electrolysis industry
04/21/2005US20050084406 mixing powders or alloy powders with yttrium oxide powder to form a mixed powder, then alloying, solidifying by hot extrusion, heat treating and tempering to form heat resistant martensite steels
04/21/2005US20050084405 Strengthening oxide dispersion and reducing oxygen content in steel, adjusting titanium amount, heating to react with Y2O3 and excess oxygen to form the complex oxide Y2Ti2O7 or Y2TiO5; alloying; irradiation resistance, finely dispersed and high density
04/20/2005CN1197985C High-activity reduction agent for smelting iron alloy by electric oven
04/13/2005EP1522601A2 Sintered component made of stainless steel with high corrosion resistance and production method therefor
04/13/2005CN1606656A Gray cast iron for cylinder heads
04/13/2005CN1605646A Aluminium killed steel deoxidizer - alfer
04/13/2005CN1605633A Low-carbon steel molten-steel modifier
04/07/2005WO2005031125A1 Valve sheet for engine
04/07/2005US20050072955 Dimensional accuracy, strength; cracking and peeling resistance; transformer cores, choke coils, magnetic heads
04/07/2005DE10341050A1 Cold saw blade for cutting seam-welded steel tubes comprises a toothed region partially made from a steel alloy and having a component produced by powder metallurgy
04/06/2005EP1521276A2 Composite sintered magnetic material, its manufacturing method, and magnetic element using composite sintered magnetic material
04/06/2005EP1520058A1 Steel alloys
04/06/2005CN1603444A Multiplex rare-earth ferroalloy (RERAFe#-[2]) powder and method for preparing same
04/06/2005CN1603441A Manufacturing processes of sintered alloy and oil-impregnated sintered bearing
04/06/2005CN1195600C Method for producing rare-earth alloy magnetic powder shaping body and method for producing rare-earth magnet
03/2005
03/30/2005EP1385661A4 High machinability iron base sintered alloy for valve seat inserts
03/30/2005EP1307603B1 Composition for elements having a high strength, in particular for hot wear and thermal fatigue, rolls coated with said composition
03/30/2005CN1602367A Method for reuse of steel sheet scrap
03/30/2005CN1601660A Permanent magnet alloy for medical imaging system and method of making
03/30/2005CN1600885A Method for manufacturing continuous casting low carbon steel containing boron in small square billets
03/30/2005CN1600884A Method for smelting boron steel directly from pig iron containing boron
03/30/2005CN1600870A Method for producing nodular cast iron in high aluminum through melting in three-stage furnace
03/30/2005CN1195079C Method for smelting stainless steel with waste steel by frequency-conversion electric induction furnace
03/24/2005US20050063856 Forming a mixed powder of copper or copper alloy and iron powder of specified surface area and particle size into a green compact, and sintering to obtain a porous alloy
03/24/2005US20050062572 Permanent magnet alloy for medical imaging system and method of making
03/23/2005CN1598029A Technology for united producing rare earth calcium magnesium silicon iron alloy by mining hot furnace middle frequency induced electric furnace hot liquid
03/23/2005CN1598028A Vanadium niobium nitrogen melt and its production process
03/23/2005CN1598027A Alloy steel powder for powder metallurgy
03/23/2005CN1598019A Production process for preparing vanadium iron containing nitrogen 80 by burning synthetic
03/23/2005CN1597998A Process for producing steel containing alumium low carbon low ilicon by small square blank continuous caster
03/23/2005CN1194108C Rare earth addition quantity optimization and control method of rare earth weather resistant steel
03/23/2005CN1193844C Magnet material producing method, thin belt magnet material, powder magnet material and binded magnet
03/16/2005EP1514947A1 Fabrication of a high-strength steel article with inclusion control during melting
03/16/2005EP1513640A1 Prealloyed iron-based powder, a method of producing sintered components and a component
03/16/2005EP1513639A1 Composition and process for warm compaction of stainless steel powders
03/16/2005CN1594632A High magnetic induction wide temperature interval linear magnetic temperature compensating alloy and production process thereof
03/16/2005CN1594630A Single blow magnesia mixture lance for hot metal desulfurization
03/16/2005CN1594629A Magnesia mixture lance for hot metal desulfurization
03/16/2005CN1594628A Magnesia mixture lance for hot metal pretreatment
03/16/2005CN1594627A Single blow magnesia mixture lance for hot metal pretreatment
03/16/2005CN1594626A Soft magnetic alloy smelting production method
03/15/2005US6866816 Wear and corrosion resistant austenitic iron base alloy
03/15/2005US6866726 Alloy of iron, manganese, nickel, carbon, silicon, phosphorus, sulfur, and magnesium; tensile strength, elongation
03/10/2005WO2005021190A1 Iron-based sintered alloy and manufacturing method thereof
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