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Patent Searching and Data


Matches 651 - 700 out of 6,749

Document Document Title
WO/1994/017939
The invention relates to a composition and a method for producing a finely ground powder of sponge-iron and hard-phase material.  
WO/1994/016111
A method is disclosed of producing a corrosion resistant product from a billet comprising a core of finely divided ferrous swarf compacted into briquettes in a stainless steel jacket and in which the billet is heated to a temperature at ...  
WO/1994/014991
A process of coining sintered articles of powder metal comprising: blending carbon, ferro manganese, and lubricant with compressible elemental iron powder, pressing the blended mixture to form the articles, high temperature sintering of ...  
WO/1994/014557
A method of producing bearing surfaces from powder metal blanks comprising: blending carbon and ferro alloys and lubricant with compressible elemental iron powder, pressing the blending mixture to form the powder metal blank, high temper...  
WO/1994/013418
An iron-based powder for producing high-strength components with a small local variation in dimensional change, by powder compacting and sintering. The powder contains, in addition to Fe, 0.5-4.5 % by weight Ni, 0.65-2.25 % by weight Mo ...  
WO/1994/013846
The disclosed material comprises different zones of a maximum size comprised between 60 and 500 microns, wherein at least two substances have different hardness and friction coefficients, the harder substance having the higher friction c...  
WO/1994/008061
A method of producing a sintered metal component from powder comprises mixing a high alloy steel powder with a low alloy steel or an iron powder in the presence of a free carbon powder in the range 0.1 to 1.5 wt %, optionally with a lubr...  
WO/1994/006588
An iron powder and mixed powder for powder metallurgy as raw materials for producing sintered mechanical components by adding Cu powder and graphite powder to iron powder and rolling and sintering the mixture, 0.008 to 0.5 wt.% of at lea...  
WO/1994/005822
A process of forming a sintered article of powder metal comprising: selecting elemental iron powder; determining the desired properties of said sintered article and selecting, a quantity of carbon, and ferro alloy from the group of ferro...  
WO/1994/004297
The method and apparatus for reclaiming substantially pure sand from a heat treating furnace (19); wherein a casting with sand core and/or sand mold, comprising sand bound by a combustible binder, attached thereto is introduced into the ...  
WO/1994/005021
Magnetic materials containing a rare earth metal, and iron or a similar metal, as well as nitrogen and carbon, are produced by gas absorbing nitrogen and carbon sequentially into a parent intermetallic compound; the resulting magnetic ma...  
WO/1994/002273
Methods for preparing metallurgical powders containing an organic lubricant are provided. The powders are prepared by wetting a dry admixture of an iron-based powder, at least one alloying powder, and a first organic lubricant with an or...  
WO/1994/000259
A flame-retardant bonded magnet which does not contain cobalt, the use of which is restricted from the viewpoint of resources saving, and is excellent in the temperature characteristics optimal for a display and the convergence yoke of t...  
WO/1993/024261
The invention relates to an additive for improving the machinability of iron-based powder compositions. The additive contains a combination of calcium fluoride particles and barium fluoride particles, which is included in an amount of 0....  
WO/1993/024260
The invention relates to an additive for improving the machinability of iron-based powder compositions. The additive contains calcium fluoride particles which are included in an amount of 0.1-0.6 % by weight in the powder composition. Th...  
WO/1993/024673
In a powder composition for surface-coating metal substrates by plasma transfer (PTA), the powder particles contain 18.0-30.0 % by weight of Cr, 5.0-20.0 % by weight of Ni, 1.0-3.5 % by weight of C, optionally 0.1-3.0 % by weight of each...  
WO/1993/022469
Iron-based metallurgical powder compositions are produced by mixing iron-based powder with an improved binder/lubricant that comprises dibasic organic acid and one or more additional components such as solid polyethers, liquid polyethers...  
WO/1993/022470
Lead free shotshell pellets consisting essentially of an alloy of iron and tungsten are disclosed. The pellets may be uniformly coated with a natural or synthetic resin, a lubricant, or a synthetic polymer or elastomer. The pellets are p...  
WO/1993/019875
A method is described for the manufacture of a sintered ferrous-based material having improved machinability, the method comprises the steps of making a mixture of a ferrous-based powder, the mixture including a compound containing at le...  
WO/1993/018195
A process is suitable for producing a sintered body made of a high alloy steel powder. The steel powder is heated up to the sintering temperature, is maintained at the sintering temperature during a predetermined time period and the thus...  
WO/1993/015319
A vane made of sintered iron alloy containing uniformly dispersed hard carbides and comprising an iron-based matrix. The alloy consists of 0.7 - 1.5 wt% of C, 3.0 - 5.0 wt% of Cr, 0 - 10.0 wt% of Mo, 1 -20.0 wt% of W, 0.5 - 6.0 wt% of V,...  
WO/1993/014896
A minute acicular particle containing metallic iron, iron carbide and free carbon, which is produced by reducing iron carbide, has a mean particle diameter (major axis) of 0.1-0.5 mum and an average aspect ratio of 3 to 15, and contains ...  
WO/1993/013898
This invention relates to a dry-process production of high purity metal powder by quenching which comprises the steps of melting a metal inside a melting vessel by r.f. waves in a vacuum or in a gas atmosphere, lowering the melting vesse...  
WO/1993/013232
A metallic solid comprising a metal-carbon matrix of an allotropic metal and metallofullerites of the allotropic metal is disclosed, along with an associated method of forming the solid by interrupting and temporarily holding a metal-car...  
WO/1993/012359
A rotor for use with a caliper in a brake system of a vehicle. The rotor has a hub with a plurality of openings therein for attachment to an axle which rotates with a wheel of the vehicle. The hub has either an annular disc or spokes whi...  
WO/1993/005908
A method of producing a chilled iron camshaft from a chromium containing cast iron is described. The cast iron material contains between 0.5 wt % to 1.2 wt % of chromium, the camshaft having a white iron structure adjacent chill inserts ...  
WO/1993/003874
The invention relates to an iron-based powder composition which, in addition to a substantially non-alloyed Fe-powder, comprises Sn and P, optionally lubricant and at most 1.0 % by weight of impurities. In the composition, Sn and P are p...  
WO/1993/002818
A high speed steel which has been manufactured power-metallurgically and has the following chemical composition in weight-%: 0.6-0.9 C, from traces to max 1.0 Si, from traces to max 1.0 Mn, 3-5 Cr, 0-5 Mo, 0-10 W, where (Mo+W/2) shall be...  
WO/1993/002819
The invention relates to a high-speed steel which is manufactured powder-metallurgically and has the following chemical composition in weight-%: 1.3-1.6 C, from traces to max 1.0 Si, from traces to max 1.0 Mn, 3-5 Cr, 4-7 Mo, 4-8 W, 2-4 ...  
WO/1993/002821
The invention relates to a high-speed steel which is manufactured powder-metallurgically and has the following chemical composition: 2.2-2.7 C, from traces to max 1.0 Si, from traces to max 1.0 Mn, 3.5-4.5 Cr, 2.5-4.5 Mo, 2.5-4.5 W, 7.5-...  
WO/1993/002820
The invention relates to a high-speed steel with good hot hardness and high wear resistance, which is manufactured powder-metallurgically and has the following alloy composition in weight-%: 1.0-2.5 C, max 1.0 Si, max 1.0 Mn, 3-5 Cr, 2-8...  
WO/1993/003192
The invention provides a method of making a titanium carbide metal matrix alloy, by firing a particulate reaction mixture comprising carbon, titanium and matrix material, under conditions such that the titanium and carbon react exothermi...  
WO/1993/001318
Austenitic steel for nuclear reactor components is largely resistant to radiation-induced stress cracking corrosion if the silicon, phosphorus and sulphur content is reduced by comparison with commercial grades of steel and its grain str...  
WO/1993/001319
Austenitic steel for nuclear reactor components is largely resistant to radiation-induced stress cracking corrosion if the silicon, phosphorus and sulphur content is reduced by comparison with commercial grades of steel and its grain str...  
WO/1992/022395
An iron-based powder for producing highly resistant components with a small local variation in dimensional change, by powder compacting and sintering. The powder contains, in addition to Fe, 0.5-4.5 % by weight Ni, 0.65-2.25 % by weight ...  
WO/1992/021462
A method and a device for making metallic powder, by which irregularity in cooling speed is hardly caused, high speed cooling and solidification are made possible, and fine grain powder can easily be obtained. Cooling liquid is spouted a...  
WO/1992/021783
It is proposed, to improve the wearing properties, to add boron carbide to a metal-based material whereby, on the application of abrasive stress in the peripheral regions near the surface, a wear protection layer consisting of finely div...  
WO/1992/020522
An iron powder composition comprising an iron powder coated with a substantially uniform coating of a thermoplastic material and admixed with a boron nitride powder and a method of utilizing the mixture to produce a magnetic core compone...  
WO/1992/020829
Magnetostrictive powder composite and method for the manufacturing of the magnetostrictive powder composite. The powder composite according to the invention is preferably used as a magnetostrictive element in sound projectors and vibrati...  
WO/1992/014853
Method of forming and a new class of tool steel macrocomposites having improved thermal fatigue resistance and improved wear resistance, formed of tool steel powder mixed with carbide powder under hot isostatic pressing.  
WO/1992/011941
A refining element for disc refiners, where the refining element on the front side is provided with a pattern of refining members, and a method of manufacturing the same. At least a layer on the front side of the element comprises grains...  
WO/1992/006810
A method in the production of ductile cast iron comprising controlling and correcting the composition of the cast iron melt. The method further comprises extracting a sample from the melt, the mother melt, and adding an amount of an oxid...  
WO/1992/002326
A process for producing an annular part excellent in abrasion resistance and mechanical strength, wherein the surface layer of which an abrasion resistance is required has a hardness of HRC (58 to 63) and the inside has a hardness of HRC...  
WO/1992/000158
A method of powdermetallurgically manufacturing a fully dense body of a high temperature martensitic chrome steel. A melt with an optimized composition (percentage by weight) of C 0.02 - 0.18 %; Si 0.05 - 0.5 %; Mn 0.05 - 1.0 %; Cr 9.0 -...  
WO/1992/000595
A method for improving the magnetic properties of a polyphase product having permanent-magnet-like properties at room temperature, acting as a precursor and having been processed by hydridizing crackling at a low pressure and a low tempe...  
WO/1991/019582
An iron-based powder for producing impact-resistant components by powder compacting and sintering contains, in addition to Fe, 0.3-0.7 % by weight of P, 0.3-3.5 % by weight of Mo, and not more than 2 % by weight of other alloying element...  
WO/1991/019300
This invention relates to a process for producing a rare earth-containing material capable of being formed into a permanent magnet having an increased Curie temperature comprising treating the alloy with a passivating gas at a temperatur...  
WO/1991/018123
An iron-based powder for making wear-resisting and heat-resisting components by compacting and sintering contains, in addition to Fe, 3-15 % by weight of Mo and/or 3-20 % by weight of W, the total amount of Mo + W being in the range of 3...  
WO/1991/016466
A matrix-bonded carbide-containing material of high hardness is prepared using a mixture containing a matrix alloy having a composition in weight percent of from about 15 to about 45 percent chromium, from 0 to about 3 percent silicon, f...  
WO/1991/014526
A machinability improving and/or wear-resistance improving supplementary powder for an iron- or steel-based powder for use in powder-metallurgical production of blanks consists of MnS and Te or a Te-compound and/or Se or an Se-compound. ...  

Matches 651 - 700 out of 6,749