Patents for C22C 33 - Making ferrous alloys (11,268)
12/1992
12/02/1992EP0516404A1 Mixed powder for powder metallurgy and sintered product thereof
12/02/1992CN1066744A Hot-pressed magnets in open-air presses
12/02/1992CA2068772A1 Method and apparatus for the production of nodular or compacted graphite iron castings
12/01/1992US5167728 Controlled grain size for ods iron-base alloys
11/1992
11/26/1992WO1992020522A1 Thermoplastic coated magnetic powder compositions and methods of making same
11/25/1992EP0515018A1 Prealloyed high-vanadium, cold work tool steel particles and method for producing the same
11/23/1992WO1992020829A1 Magnetostrictive powder composite and methods for the manufacture thereof
11/23/1992CA2102501A1 Magnetostrictive powder composite and methods for the manufacture thereof
11/19/1992EP0513891A1 Hot-pressed magnets in open-air presses
11/11/1992CN1019062B Method and apparatus for making flakes of re-fe-b-type magnetically-aligned material
11/10/1992US5162099 Process for producing a sintered compact from steel powder
11/10/1992US5162063 Rare Earth Metal, Transition Metal, Boron
11/04/1992CN1065886A Treatment container for instantaneous dense flow nodulizing (inoculation) of nodular cast iron
11/04/1992CN1018938B Casting-state troostite grinding ball
10/1992
10/28/1992EP0510977A1 High Young's modulus materials and surface-coated tool members using the same
10/28/1992EP0510598A2 Wear-resistant compound roll
10/28/1992CN1065687A Chromium slag leaching and smelting detoxication method
10/27/1992US5158745 High-nitrogen ferritic heat-resisting steel
10/27/1992US5158601 Uniformity dispersed copper phase
10/20/1992US5156805 Process of preparing a ferritic alloy with a wear-resistive alumina scale
10/20/1992CA1308917C Method for manufacturing chromium-bearing pig iron
10/14/1992CN1018657B Heat-resistant antifriction self-lubricating material and its manufacturing method
10/13/1992US5154881 Method of making a sintered metal component
10/06/1992CA1308275C Additive powders for coating materials or plastics
09/1992
09/30/1992EP0331679B1 High density sintered ferrous alloys
09/30/1992CN1064896A Method for smelting ferrosilicon
09/30/1992CN1018460B Process for adding selenium to melten steel
09/29/1992CA1307952C Porous metal bodies
09/16/1992EP0503326A2 Process for preparing a sintered article from steel powder
09/15/1992US5147601 Three-dimensional shape; removal of binder used in injection molding
09/09/1992EP0502397A2 Preparation process for soft magnetic Fe-containing material with high saturation magnetisation and ultrafine structure
09/08/1992CA1307136C Wear and corrosion resistant articles made from pm alloyed irons
08/1992
08/26/1992EP0294371B1 Activator mixture for increasing the strength of iron alloys
08/26/1992CN2113983U Alloy absorber
08/25/1992US5141554 Injection-molded sintered alloy steel product
08/20/1992WO1992014853A1 Tool steel with high thermal fatigue resistance
08/20/1992CA2105178A1 Tool steel with high thermal fatigue resistance
08/19/1992EP0499392A2 Method for producing a wear-resistant iron-based sintered alloy
08/19/1992EP0411061A4 Fe-mn-al-c alloys and their treatment
08/12/1992CN1063508A Detoxication and comprehensive utilization of waste residue and gangue containing chromium titanium nickel and vanadium
08/05/1992EP0497714A1 Process for preparing a sintered article based on steel powder and article obtained thereby
08/04/1992US5135566 Iron base powder mixture and method
07/1992
07/23/1992WO1992011941A1 Refining element and method of manufacturing the same
07/14/1992US5129961 Cylindrical, iron-based sintered slugs of specified porosity for subsequent plastic deformation processing and method for making them
07/14/1992US5129959 Sulfur treatment of magnesium-contaminated fe-cr-al alloy for improved whisker growth
07/08/1992CN1062558A Technology for smelting ti-containing steel and ti-containing additive
06/1992
06/30/1992US5125811 Sintered iron-base alloy vane for compressors
06/24/1992EP0236505B1 Case-hardening steel and process for its production
06/23/1992US5123979 Alloy for fe nd b type permanent magnet, sintered permanent magnet and process for obtaining it
06/23/1992US5123957 Method for manufacturing low carbon ferrochrome with high chromium content
06/17/1992CN1062005A Composite additive of anticorrosion, antiwear cast iron
06/16/1992US5122203 Magnetic materials
06/10/1992CN1061804A Nodularizing additive for casting high toughness nodular graphite cast iron
06/10/1992CN1061803A Nodularizing additive for casting high strength nodular graphite cast iron
06/03/1992EP0488716A1 Sintered metal bodies and manufacturing method therefor
06/03/1992EP0474703A4 Manufacture of ferroalloys using a molten bath reactor
06/02/1992US5118342 Core particles and coverings; internal combustion engine exhaust valves
05/1992
05/27/1992CN1061366A Method of producing trolley-bus collector slide block
05/19/1992US5114471 Iron, cobalt, nickel and molybdenum alloys formed in a reducing atmosphere
05/19/1992US5114470 Producing void-free metal alloy powders by melting as well as atomization under nitrogen ambient
05/19/1992CA1300896C Metallothermic reduction of rare earth chlorides
05/19/1992CA1300894C Gray cast iron inoculant
05/12/1992CA1300381C Method for manufacturing alloy
05/12/1992CA1300335C Method for the manufacture of an object of a powdered material by isostatic pressing
05/06/1992EP0483668A1 High speed tool steel produced by sintering powder and method of producing same
05/06/1992CN1060878A High anti-wear alloy die set for pressing bricks
05/06/1992CN1016516B Porous metal bodies
04/1992
04/28/1992US5108493 Steel powder admixture having distinct prealloyed powder of iron alloys
04/28/1992US5108492 Corrosion-resistant sintered alloy steels and method for making same
04/22/1992EP0481763A1 Sintered metal parts and their production method
04/21/1992US5106576 Uniformly mixing powders of alloy and vanadium carbide, hot isostatic pressing
04/16/1992WO1992006810A1 Method for the production of ductile cast iron
04/16/1992CA2093419A1 Method for the production of ductile cast iron
04/15/1992EP0480722A2 Method of making a Nd-Fe type permanent magnetic material
04/15/1992EP0480495A2 Sintered ferrous-based material
04/15/1992CN1060313A Technology for producing cast iron parts with iron or steel filings
04/08/1992EP0478770A1 Tungsten carbide-containing hard alloy that may be processed by melting
04/08/1992CN1060178A Producing method and apparatus of anisotropic micro crystal rare earth permanent magnetic material
04/07/1992US5102454 Hydrometallurgical process for producing irregular shaped powders with readily oxidizable alloying elements
04/01/1992CN1016076B Antiwear casr iron and productive method thereof
03/1992
03/31/1992US5100612 Spheroidal graphite cast iron
03/24/1992US5098651 Magnesium treatment process and apparatus for carrying out this process
03/24/1992US5098648 Kneading iron and cobalt alloy powder and mixing with organic binders, injection molding, debinding and sintering
03/24/1992CA1297705C High impact strength powder metal part and method for making same
03/18/1992EP0474703A1 Manufacture of ferroalloys using a molten bath reactor.
03/12/1992DE4028267A1 Ferromanganese prodn. from manganese ore concentrates - by pre-reducing in fluidised bed melting device followed by final reducing in electro-furnace
03/03/1992US5093076 Hot pressed magnets in open air presses
02/1992
02/25/1992US5091022 Manufacturing process for sintered fe-p alloy product having soft magnetic characteristics
02/20/1992WO1992002326A1 Process for producing annular part
02/19/1992CN1015553B Cast iron strong graphited inoculant
02/12/1992CN1058620A Technology for smelting ferrosilicon by direct combustion of mirabilite
02/11/1992US5087290 Desulfurization, magnesium treatment and inoculation in single step
01/1992
01/29/1992EP0468903A1 Method for obtaining powdered magnetic material of the rare earth-transition metal-boron type for corrosion resistant magnets
01/29/1992EP0468317A2 Method for the preparation of magnetic material based an the Sm-Fe-N substance system
01/26/1992CA2046478A1 Method for obtaining in separate for a magnetic rare earth type material, transition metals and boron for corrosion resistant magnets
01/22/1992EP0467857A1 Powder metallurgy tool steel
01/21/1992US5082433 Powder metallurgy; sintering and alloying of copper, molybdenum, iron and carbon; wear resistance
01/21/1992CA1294462C Wear resistant iron powder article
01/14/1992US5080713 Hard alloy particle dispersion type wear resisting sintered ferro alloy and method of forming the same
01/14/1992US5080712 Iron-based powder mixture