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WO/2000/020780 |
The invention relates to a gear pair with toothing which is produced especially by powder metallurgy. The mating flanks (4) of the toothing have a crowning. In order to create advantageous construction conditions, this crowning of the ma...
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WO/2000/016935 |
A method of forming an undercut in a metal powder injection-molded article and a metal powder injection-molded article having an undercut formed by such method. The method comprises the steps of injection-molding a mixture that contains ...
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WO/2000/016936 |
A metal sintered body which is high in hardness, excellent in abrasion resistance and easy to produce and a method of producing it, the method comprising a step 1A of producing by a metal powder injection molding (MIM) method a molded pr...
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WO/2000/015970 |
The invention relates to a sintered plain bearing for engines and gears, comprising a bearing race embodied by a bearing bore (11) and supplied with lubricant from lubricant depots situated in the bearing. According to the invention the ...
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WO/2000/016353 |
The invention relates to a paste for producing sintered refractory metal layers, notably electrolytic capacitor anodes. Said paste consists of between 40 and 92 % by weight of a refractory metal powder as the discrete phase and of a cont...
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WO/2000/005063 |
The aim of the invention is to simplify a method for producing press rolls, or ring liners or ring segments for press rolls which have at least one cooling channel for dissipating heat. To this end, the one or more materials immediately ...
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WO/1999/064639 |
A method of imparting high strength, high ductility, and high fracture toughness to a refractory metal alloy workpiece includes: (i) subjecting the workpiece to at least one pass that reduces the initial cross-sectional area of said work...
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WO/1999/061185 |
A method for making thermocouple wire from powdered alloys and metals is disclosed. The metal or alloy is atomized from its liquid state into a powdered state as it leaves a melting vat. The powder is then compacted and cold worked to fo...
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WO/1999/059790 |
The inventive method for the production of a metal mould in order to manufacture a limited amount of mass-produced injection moulded parts (2) consists in producing a moulded part (7) by means of injected powder moulding based on a model...
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WO/1999/058273 |
The method is used to produce holes in sinter metals in connection with plastic deformation such as swaging or forging or in combination with pressing and is of special advantage when long holes with, compared to the length, a small diam...
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WO/1999/050038 |
Tool having a molding surface is formed from a flowable material (e.g., powder material) wherein the shape of molding surface is formed from a molding process using a master pattern having a surface with a shape substantially the same as...
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WO/1999/038641 |
According to the inventive method, initially and substantially parallel long fibres (18) are introduced into the cavity (16) of a workpiece (10) consisting a matrix material. The cavity (16) has an enlarged area (20) with an expansion el...
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WO/1999/037426 |
The invention relates to a method for producing a metallic shaped part made of a metallic granulate by hot pressing. According to the invention, the metallic granulate is poured into a hollow mold (6) made of sheet metal. The hollow mold...
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WO/1999/028070 |
A method of densifying a sintered powder metal article (2) by point contact (12).
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WO/1999/028068 |
A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having i...
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WO/1999/025887 |
A method for making a high density powdered metal article is provided. In one embodiment, the composition consists of iron based powder, lubricant, graphite and ferro alloy additions. Satisfactory results may also be achieved by using fu...
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WO/1999/024195 |
Processes are disclosed for manufacturing semifinished products made of tubular elements with a metallic foam core.
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WO/1999/022890 |
The invention relates to a method and a device for producing a toothed wheel from a powder metal blank (1) which has been sintered and pressed with an overmeasure in the toothing area. Said blank is compacted in the area of the overmeasu...
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WO/1999/020421 |
The invention relates to a method for producing a hose coupling (5) which is embodied in such a way that it can be firmly mounted under pressure on the end of a hose for hydraulic oil. The hose coupling ensures fluid connection between a...
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WO/1999/020806 |
A copper-base sliding material comprising a matrix made from sintered copper or alloy thereof and, dispersed therein, particles of A1N, Al¿2?O¿3?, NiB, Fe¿2?B, SiC, TiC, WC, Si¿3?N¿4?, Fe¿3?P, Fe¿2?P and/or Fe¿3?B, wherein the pa...
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WO/1999/020422 |
The invention concerns a method for preparing a nanocomposite based on magnesium and another element or compound known to absorb hydrogen and hardly miscible when ground with magnesium or its hydride, such as vanadium, titanium or niobiu...
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WO/1999/018258 |
An electrode rod for spark deposition; a process for the production thereof; and a process for covering by spark deposition. The electrode rod is a rodlike compact of a close powder mixture comprising a first powder component containing ...
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WO/1999/014387 |
A wedding ring is manufactured by a process comprising the production of a metal powder by the atomizing of a stream of molten precious metal, for example a gold alloy, the compaction of the metal powder into a hollow cylindrical body, t...
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WO/1999/014511 |
A sliding member used for various purposes, or a slide bush, an Oldham's ring and a vane used for various types of refrigerating compressors, which comprise an iron material, rarely encounter the adhesion thereof with an aluminum member ...
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WO/1999/013119 |
The present invention relates to a corrosion and oxidation resistant cemented carbide containing WC and 6-15 wt.% binder phase whereby the binder phase contains 8-12 wt.% Cr+Mo with an average WC grain size of 3-10 $g(m)m. This is obtain...
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WO/1999/011584 |
The invention relates to a method for producing components from powders and which can be aptly described as hot flow compacting. Components which can be configured in an extremely complex manner are produced from powdery starting materia...
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WO/1999/007006 |
A method of producing an R-T-B-base radial anisotropic annular sintered magnet capable of reducing the cracks of the sintered magnet occuring on the inner peripheral surface thereof in an axial direction after sintering and drastically i...
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WO/1999/003560 |
An inline ultra-high efficiency filter which achieves a 9 LRV efficiency comprises housing (10) having a chamber extending the length thereof, an inlet (16) and an outlet (18) providing flow passages into and from the chamber. Seated in ...
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WO/1999/002289 |
The present invention relates to a method wherein a superhard abrasive material is sintered and simultaneously bonded to a sintered cemented carbide body inside a container under elevated pressure and temperature conditions (HP/HT-treatm...
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WO/1998/056526 |
A method of manufacturing a sheet metal member, comprising sintering a green compact in the form of a sheet having thin wall portions and thick wall portions to provide a sintered compact and then repressing the sintered compact, wherein...
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WO/1998/056056 |
The present invention concerns a hydrogen storage alloy powder composition for nickel metal hydride rechargeable batteries. The powder is distinguished by a fine dendritic structure and is prepared by gas atomising a metal melt and rapid...
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WO/1998/043756 |
Provided by the present invention is a process for making a wet-layed metal fiber nonwoven sheet. The process comprises first dispersing metal fibers into an aqueous dispensing fluid which contains a non-carboxy containing water soluble ...
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WO/1998/044197 |
Provided by the present invention is a wet-layed, nonwoven sheet which is comprised of metal fiber and metal powder. Generally, the amount of metal fiber comprises from 20 to 95 % by weight and the amount of metal comprises from 5 to 80 ...
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WO/1998/038660 |
A capacitor constituted of a pair of electrodes and a dielectric provided between the electrodes, wherein one of the electrodes is made of sintered niobium nitride. Preferably, the dielectric is made of niobium oxide, and the other elect...
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WO/1998/037249 |
The invention relates to tantalum powders poor in alkali and fluorine having a primary particle size of between 150 and 300 nm and a secondary particle size, defined by sintering of the primary particles, of more than 5 $g(m)m. By sinter...
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WO/1998/037248 |
The invention relates a tantalum powder free of alkali and fluorine, which for a relatively small primary particle size has comparatively large secondary particles and is suitable for producing capacitors with a specific charge of betwee...
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WO/1998/032885 |
The invention concerns leached nanocrystalline materials having a large specific surface area particularly useful for storing hydrogen or for making electrodes for catalysis or electrocatalysis, such as those used in fuel cells. These ma...
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WO/1998/022633 |
The present invention pertains to a high-temperature aluminium material intended for use in the production of internal combustion engine pistons and obtained by mechanically alloying aluminium powders and one or more aluminium alloy addi...
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WO/1998/019812 |
A method for making multi-channel structures suitable for use as filters, catalyst carriers or the like. A composite rod (11) comprising an outer shell (12) and an inner core (13) is formed of respective mixtures of powders. The mixture ...
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WO/1998/018587 |
A continuous extrusion process and device are disclosed for rods (24) made of a plastic raw material and provided with at least one inner channel (22) which at least in part is spiral-shaped. The raw material may be a powder-metallurgica...
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WO/1998/016338 |
A sintered powder metal part is surface densified by surface heating followed by repressing. Surface heating is preferably done to a temperature which is just below the critical temperature where the steel alloy material of the part tran...
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WO/1998/016339 |
The present invention concerns a method of producing powder-metallurgical compacted components, which during subsequent processing are split into individual parts mating in pairs, sintered and optionally heat-treated and remated. Accordi...
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WO/1998/010642 |
This invention provides a method of providing a barrier coating over the surfaces of a plurality of sinkers (10) each having a line passageway (21) therethrough, and to sinkers (10) having a barrier coating (25, 27) over the exposed surf...
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WO/1998/004756 |
A sliding material which is used for bearings, washers and other parts of automobiles, industrial machines, agricultural machines and the like, possesses an excellent abrasion resistance, and is useful under sever boundary lubricating co...
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WO/1997/047445 |
A pressurized feed shoe (10) for delivering particulate materials to fill a die cavity (26) is provided. The feed shoe (10) includes a feed shoe body (11) comprising a vessel for receiving a quantity of particulate material. The feed sho...
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WO/1997/047418 |
The present invention concerns compacted and optionally presintered bodies, which are prepared from metal powders and which have densified surfaces, obtained by shot peening or rolling.
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WO/1997/045219 |
A powder metal gear wheel having a core density of at least 7.3 g/cc, and in one embodiment 7.4 to 7.6 g/cc and a hardened carburized surface. A method of manufacturing transmission gears comprises, sintering a powder metal blank to prod...
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WO/1997/044292 |
The invention concerns a method of stabilizing a foamed starting suspension material which contains the following constituents: a) inorganic sintering material; b) a propellant source; c) an agent which forms a ring structure when the pH...
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WO/1997/043067 |
A multiply-acting powder metal press is disclosed for making green form double helical gear compacts. The press has inner and outer lower punches, and an upper, outer punch. The upper and lower outer punches have left hand and right hand...
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WO/1997/043560 |
A friction member produced by mixing metal binder powders, at least one lubricant and fillers in the form of hard particles, then shaping and sintering the mixture. Powders with a particle size no greater than 250 microns are used at lea...
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