Patents for C22C 33 - Making ferrous alloys (11,268)
05/1994
05/10/1994US5310519 Sintering to form carbides
05/10/1994US5309977 Melting rare earth element alloy; injecting through nozzle against rotating chill roll
05/06/1994CA2108736A1 Method for the preparation of alloys of the rare earth metals of the se fe tm n type
05/03/1994US5308702 Iron-based powder composition for use in powder metallurgy, process for its production and process for producing iron-base sintered material
04/1994
04/27/1994EP0593470A1 Material and workpiece for nuclear engineering and production thereof
04/27/1994EP0593469A1 Material and workpiece for nuclear engineering and production thereof
04/26/1994US5306568 Carbon or alloying steel containing hard particles
04/26/1994US5306524 Thermoplastic coated magnetic powder compositions and methods of making same
04/20/1994CN1085605A Technology for smelting ultralow-carbon high-chromium alloyed steel by subaerated induction furnace
04/14/1994WO1994008061A1 A method of producing sintered alloy steel components
04/13/1994EP0417082B1 Cold work steel
04/13/1994CN1085260A Alloy for inoculation
04/12/1994US5302184 Manufacture of ferroalloys using a molten bath reactor
04/07/1994DE4334062A1 Tool steel compsn. having high temp. strength - comprises manganese@, chromium@, molybdenum@, tungsten@, vanadium@, cobalt@ and nitrogen@
04/06/1994CN1084900A Method and apparatus for the production of nodular or compacted graphite iron castings
04/06/1994CN1024139C Nodularizer for thick and large fracture surface ductile iron work piece
04/06/1994CN1024138C Phosphorus family wear-resisting cast iron quenching ball and production process thereof
04/05/1994US5300836 Flame rod structure, and a compensating circuit and control method thereof
03/1994
03/31/1994WO1994006588A1 Iron powder and mixed powder for powder metallurgy and production of iron powder
03/30/1994EP0589435A2 Refractory shape steel material containing oxide and process for producing rolled shape steel of said material
03/30/1994EP0589424A2 Shape steel material having high strength, high toughness and excellent fire resistance and process for producing rolled shape steel of said material
03/30/1994EP0588904A1 Iron-based powder composition having good dimensional stability after sintering
03/30/1994CN1084580A Refractory shape steel material containing oxide and process for producing rolled shape steel of said material
03/30/1994CN1084579A Polycompound nodulizer for nodular cast iron
03/23/1994EP0588266A1 Method and apparatus for producing metal objects
03/23/1994EP0587603A1 Metal-based material, moulded body and process for its manufacture, and use thereof
03/23/1994CN2159543Y Full carbon molecular arc crucible oven
03/16/1994EP0394455B1 Process for producing iron-boron-silicon alloy
03/15/1994CA2105850A1 Method and apparatus for producing metal objects
03/11/1994EP0647180A4 Thermoplastic coated magnetic powder compositions and methods of making same.
03/10/1994WO1994005822A1 Powder metal alloy process
03/08/1994CA1327463C Machinable-grade, ferrous powder blend containing boron nitride
03/08/1994CA1327462C Machinable-grade, ferrous powder blend containing boron nitride
03/03/1994WO1994005021A1 Permanent magnet material containing a rare-earth element, iron, nitrogen and carbon
03/03/1994WO1994004297A1 Heat treatment of metal castings and in-furnace sand reclamation
03/03/1994CA2142337A1 Permanent magnet material containing a rare-earth element, iron, nitrogen and carbon
03/02/1994CN1083124A Process for smelting ferrosilicon by "electricity-coal" double heat source
03/01/1994US5290508 Manufacturing process for ring-shaped parts
03/01/1994US5290507 Method for making tool steel with high thermal fatigue resistance
03/01/1994US5290336 Iron-based powder compositions containing novel binder/lubricants
03/01/1994CA1327274C Method of recovering metals and metal alloys and a plant therefor
02/1994
02/23/1994EP0583795A1 Method for producing thermoelectric elements
02/22/1994US5288342 Solid metal-carbon matrix of metallofullerites and method of forming same
02/16/1994EP0583164A1 The production of stainless steel
02/15/1994US5286308 Alloy of transition metal, rare earth element, yttrium and boron; noncracking
02/15/1994US5286275 Metal powder, physical property improving powder, lubricant and synthetic styrenic rubber copolymer
02/12/1994CA2103843A1 Production of stainless steel
02/08/1994US5284617 Process for dealuminizing molten cast iron
02/08/1994US5284615 Method for making injection molded soft magnetic material
02/08/1994US5284530 High-chromium and molybdenum steels having toughness and high temperature workability
02/03/1994WO1994002273A1 Method for preparing binder-treated metallurgical powders containing an organic lubricant
02/03/1994DE4325531A1 Reduced ferrite powder for vehicle brake system friction elements - includes oxide(s) of silicon, magnesium, calcium, aluminium and zinc.
01/1994
01/26/1994CN1081208A Nodulizer alloy and its usage technique for producing ductile iron with non-inoculation
01/19/1994CN1023573C Vessel for instantaneous dense phase spheroidizing, creeping and inoculation of nodular graphite cast iron
01/19/1994CN1023572C Compound spheroidizing modificator
01/18/1994US5279640 Mixing with organic acid, amide; alloying,heating
01/11/1994US5277867 Method for making high strength injection molded ferrous material
01/06/1994WO1994000259A1 Powdery alloy for bonded magnet and bonded magnet
01/05/1994EP0576684A1 Minute acicular particle containing metallic iron, iron carbide and carbon, production thereof, and magnetic coating composition and magnetic recording medium containing the same
12/1993
12/29/1993EP0576312A2 Process for reducing oxides contained in iron powder without substantial decarburization thereof
12/28/1993US5273570 Secondary hardening type high temperature wear-resistant sintered alloy
12/22/1993CN1023237C Treating method for certrifugal casting compound roll ball
12/22/1993CN1023236C Method for manufacturing iron-boron-silicon alloy
12/21/1993CA1325389C Sintered coating for porous metallic filter surfaces
12/09/1993WO1993024673A1 Surfacing composition and method
12/09/1993WO1993024261A1 PARTICULATE CaF2 AND BaF2 AGENT FOR IMPROVING THE MACHINABILITY OF SINTERED IRON-BASED POWER
12/09/1993WO1993024260A1 PARTICULATE CaF2 AGENT FOR IMPROVING THE MACHINABILITY OF SINTERED IRON-BASED POWDER
12/08/1993EP0572548A1 Tool steel with high thermal fatigue resistance
12/07/1993US5268140 Thermoplastic coated iron powder components and methods of making same
11/1993
11/25/1993DE4317121A1 Wear resistant sintered ferrous alloy prodn.
11/23/1993US5264022 Composite shot
11/23/1993CA1324513C Alloy steel product, die blocks and other forgings and castings made thereof and a method to manufacture the product
11/16/1993US5261511 Lightweight and high thermal conductivity brake rotor
11/16/1993CA1324265C Method of recovering metals and metal alloys and a plant therefor
11/11/1993WO1993022470A1 Composite shot
11/11/1993WO1993022469A1 Iron-based powder compositions containing novel binder/lubricants
11/09/1993US5259860 Magnesium silicate matrix containing boron nitride or manganese sulfide
10/1993
10/26/1993US5256185 Method for preparing binder-treated metallurgical powders containing an organic lubricant
10/26/1993US5256184 Machinable and wear resistant valve seat insert alloy
10/14/1993WO1993019875A1 A method of sintering machinable ferrous-based materials
10/13/1993EP0565363A1 Method for producing anisotropic rare earth magnet
10/13/1993EP0565160A1 Process for making sintered iron components having a pore-free zone
10/13/1993EP0564778A1 Material for sintering
10/13/1993CN1077229A Cast-iron compound inoculant
10/13/1993CN1022421C Process for casting nodular graphite cast iron with as-cast ferrite by metal mould
10/12/1993US5252380 Fe, Ni, Cobalt on support with ferrite film and Al or Si film, corrosion resistance
10/12/1993US5252119 High speed tool steel produced by sintering powder and method of producing same
09/1993
09/22/1993CN1022192C Method for smelting ferrosilicon
09/16/1993WO1993018195A1 Process for manufacturing a sintered body made of high alloy steel powder
09/16/1993DE4207379A1 Verfahren und herstellung eines sinterkoerpers aus hochlegiertem stahlpulver Process and manufacture of high-alloy steel powder of a sinterkoerpers
09/15/1993CN1076222A Solid metal-carbon matrix of metallofullerites and method of forming same
09/15/1993CN1076149A Process for the production of a sintered compact from high-alloy steel powder
09/07/1993US5242483 Forming vanadium containing aggregate, mixing with iron to form aggregate, reduction
08/1993
08/25/1993EP0557103A1 Master alloy for magnet production and its production, as well as magnet production
08/25/1993EP0557020A2 Ferrosilicon smelting in a direct current furnace
08/24/1993US5238482 Atomizing molten tool steel alloy at high temperature, rapidly cooling to form particles with vanadium carbide dispersion
08/20/1993CA2089456A1 Ferrosilicon smelting in a direct current furnace
08/18/1993EP0555578A2 Method of making a sintered metal component and metal powder compositions therefor
08/10/1993US5234489 Process for reducing oxides contained in iron powder without substantial decarburization thereof
08/05/1993WO1993015319A1 Vane of compressor made of sintered iron alloy