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WO/2002/057036A2 |
A method for the production of foamable or foamed metal pellets, parts and panels. The method comprises the steps of: i) providing a mixture of a metal alloy powder (1) with a foaming agent powder (2), ii) pre-compacting (3) the mixture ...
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WO/2002/056319A1 |
A method for producing an oxide superconducting wire, which comprises a step of providing a composite comprising a powder containing an oxide superconducting substance or a raw material for an oxide superconducting substance and a metal ...
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WO/2002/049987A2 |
A die (20) comprises metal-rich sections (40a, 40b) which form an inner wall and an outer wall of the die (20), respectively. Gradient sections (42a, 42b) are disposed adjacent to the metal-rich sections (40a, 40b), respectively. Further...
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WO/2002/049739A1 |
The aim of the invention is to provide filtering candles (1) comprising a sintered filtering tube (2) and a collar (3) which is connected thereto, and having an increased shelf life and improved resistance values. To this end, the collar...
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WO/2002/048433A1 |
A chemical conversion film of a valve action metal, which comprises a portion having intermediate compositions between those of the metal and the metal oxide, wherein the intermediate composition portion has a thickness of 40 nm or more;...
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WO/2002/045888A1 |
The invention concerns a method for making thin films in metal/ceramic composite, characterised in that it consists in: a) preparing a suspension (S) in an organic solvent from a substantially homogeneous mixture of ceramic reinforcement...
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WO/2002/045108A1 |
A niobium powder for capacitors, having an average particle size of from 10 to 500 $g(m)m, which is a granulated powder having an oxygen content of 3 to 9% by mass; a sintered body thereof; and a capacitor fabricated from the sintered bo...
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WO/2002/043942A1 |
Injection moulding apparatus (10), the apparatus defining an appropriately shaped mould cavity (12). The mould cavity (12) comprises a base (14) which is made of a non-porous material, two side components (16) made of a porous material, ...
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WO/2002/034436A1 |
A process for producing sintered pellets made from blends of refractory metal and refractory metal nitride powders were found to have a higher fraction of intra-agglomerate pores than those made from the refractory metal or refractory me...
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WO/2002/035563A2 |
A niobium primary powder having an average particle size of 0.01 to 0.5 $g(m)m and an average circular degree of 0.8 or more, the circular degree being defined by 4 $g(p)A/L?2¿ (wherein A is an area of a solid projected on a plain face ...
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WO/2002/032636A2 |
A method is disclosed to form micromolds and micromold components from mixtures of micrometer or nanometer-sized particulates dispersed in an organic binder. Following extraction of the organic binder, the green micromolds or micromold c...
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WO/2002/031374A1 |
The invention relates to a sintered gear shift sleeve for a synchronizing device of a manual transmission. Said gear shift sleeve has a claw internal toothing (2), which is provided on a sleeve body (1) and whose teeth (3), on the face, ...
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WO/2002/028576A2 |
A method for producing a fully dense powder metal helical gear including placing powder metal in a perform die (10) wherein it can be compacted axially by punches (14, 15) to create a gear preform (40), having various gear profiles such ...
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WO2000068139A9 |
Composite materials of the invention, which include a gas-tight ceramic, a porous metallic support, and an interfacial zone therebetween eliminate the need for mechanical seals between two such dissimilar materials. Oxygen ion-conducting...
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WO/2002/028575A1 |
A metallic seamless pipe containing, as a main component, at least one type of metal selected from a group formed of those metals having melting points of 1600 °C or higher, characterized by having a porosity (ratio of open pores area n...
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WO/2002/018079A1 |
The invention aims to provide a module that can be used as a filter, catalyst or heater with improved mechanical characteristics for a wide range of applications. To achieve this, the module comprises at least one layer (2) of open poros...
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WO/2002/013998A1 |
A method for manufacturing a tantalum sintered object for an electrolytic capacitor, which comprises a molding step (I) of subjecting a reduced tantalum powder to a heat treatment at an elevated temperature in an inert atmosphere, pulver...
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WO/2002/011930A1 |
The invention concerns a method for making heat-exchanging devices used in particular in the field of electronics, telecommunications, aeronautics and/or space exploration. For example, it may consist of heat exchangers for onboard elect...
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WO/2002/011932A1 |
A method for producing a tantalum powder, which comprises a high temperature heat treatment step of reducing tantalum potassium fluoride with sodium and subjecting the resultant reduced tantalum powder to a high temperature heat treatmen...
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WO/2002/009916A1 |
An article formed into a honeycomb being produced by extruding a mixture of a powdery material and a molding binder, wherein a mixture of a wax and a thermoplastic resin is used as the binder, characterized in that the binder comprises t...
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WO/2002/004152A1 |
A nitrogen-containing tantalum or niobium powder which has a nitrogen content of 500 to 30,000 ppm and in which the difference in nitrogen content between any two particles is 100% or less. This powder can be produced by a process compri...
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WO/2001/091953A1 |
A niobium or tantalum powder characterized in that it comprises aggregates of primary particles of niobium or tantalum and has a pore distribution having a peak in the range of 1 to 20 $g(m)m as measured by the mercury porosimetry. The n...
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WO/2001/089746A1 |
A metallic shell (60) used, for example as a mold, is formed by spray deposition connected to a base (62) by rods (64) or other supports connected to mounting elements (30) which are incorporated in the shell during the deposition proces...
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WO/2001/083134A1 |
The invention concerns an impact machine comprising an impact unit (1) with a ram (13) and an anvil (3) provided under the impact unit, on which anvil a tool unit (2) can be placed. More particularly the invention concerns an impact mach...
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WO/2001/083132A1 |
The invention relates to a method for the manufacturing of a plate (2) of metal or of a ceramic material, the plate comprising one or more fields (3) which occupy the major part of the surface of the plate and which on at least one side ...
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WO/2001/077397A1 |
A hydrogen absorbing alloy, characterized in that it is cast into a scaly form or an analogous form thereto having a thickness of 50 to 500 $g(m)m and crystallites in the alloy have a degree of orientation such that, when an X-ray diffra...
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WO/2001/074514A1 |
A method is disclosed for the manufacture of gear wheels having two axially adjacent gears (4,6) thereon. A blank is prepared with the two gears crudely formed thereon by compressing and sintering a shaped mass of substantially metal pow...
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WO/2001/069674A1 |
An aluminum-silicon carbide (Al-SiC) semiconductor substrate having a metal comprised mainly of aluminum as a first component and silicon carbide as a second component, wherein the second component accounts for 5 to 60 mass % of the whol...
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WO/2001/069700A1 |
A hydrogen absorbing alloy having a chemical composition represented by the formula (1): A¿x?R¿1-x?(M¿y?Ni¿1-y?)n wherein A represents Y, Gd, Tb, Dy or a mixture thereof, R represents La, Ce, Pr, Nd or a mixture thereof, M represents...
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WO/2001/060581A1 |
Sacrificial inserts and molds for use in injection molding are disclosed. In one embodiment a sacrificial insert includes a water-insoluble insert which has a melting temperature greater than the injection molding melt temperature of the...
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WO/2001/054878A1 |
The present invention provides improved heated manifolds, heaters and nozzles for injection molding, having a high strength metal skeleton infiltrated with a second phase metal having higher thermal conductivity. Also disclosed is method...
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WO/2001/054846A2 |
The invention relates to hollow balls comprising shells consisting of a sintered inorganic material, such as metals, metal oxides or ceramics. The invention also relates to methods for producing lightweight structural elements by means o...
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WO/2001/049440A1 |
The aim of the invention is to produce a thin porous layer, with a defined porosity and, also, a high strength. Said aim is achieved, whereby such a layer with open porosity is produced from a mixture, comprising a sinterable powder with...
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WO/2001/042517A1 |
The invention relates to a method for producing injection wire, whereby calcium is fed as a material (A) to be pressed to a first pressing device (c). Said material (A) is pressed in a first pressing process (3) in order to produce a pre...
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WO/2001/036170A1 |
Cores (12) for manufacture of molded products, such as a solid fuel rocket motor housing (16), are fabricated from ceramic microspheres in combination with 5-20 % polymer binder in water solution, the binder comprising poly(2-ethyl-2-oxa...
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WO/2001/035428A1 |
The invention relates to an electrolytic capacitor containing a niobium anode, a niobium oxide depletion layer, a semiconducting cathode and an electrolyte, whereby the niobium oxide depletion layer contains at least one metal selected f...
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WO2001013445B1 |
The invention concerns a piece based on one or several metal hydrides capable of reversibly absorbing hydrogen. Said piece is in the form of a thin and dense band, having a thickness preferably not more than 1 mm and porosity preferably ...
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WO/2001/032332A1 |
This method involves first the step of producing a digital CAD representation of the mold (10); using this digital representation to make a set of oversized core and cavity three dimensional models, patterns or replicas, by using solid m...
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WO/2001/029274A1 |
The invention concerns a method for the manufacturing of a wire-shaped product with high wear resistance. The characteristic feature is that a melt is prepared of a martensitic stainless chromium steel which contains in weight-% 0.6-3.0 ...
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WO/2001/028717A1 |
A method of producing watchband parts, comprising the step (1A) of producing a compact containing a raw material powder by extrusion molding, the step (2A) of cutting the compact, the step (3A) of degreasing the cut green body, and the s...
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WO/2001/028716A1 |
When bodies such as connecting rods, bearings, ring-shaped housings or similar are separated by breaking, material particles are torn out of the broken surface. These particles initially continue to adhere to the broken surface at first,...
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WO/2001/028715A1 |
Organic acid-based binders are efficiently removed from powder metallurgy compacts, such as tantalum capacitor anode bodies, by immersion in a heated aqueous alkanolamine solution followed by rinsing in warm water. This method results in...
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WO/2001/023630A1 |
A fused metal matrix abrasive body and method of preparing a fused metal matrix abrasive body is provided. The fused metal matrix abrasive body comprises a plurality of metal coated abrasive particles and a fused metal matrix comprising ...
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WO/2001/021345A1 |
The application of polypropylene carbonate in solution to valve metal powders having relatively high surface area, then evaporating the solvent under static (non-agitating) conditions. The static drying of the coated valve metal powder p...
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WO/2001/019555A1 |
Metal powders are pressed into compacts more readily through the addition of a minor percentage of dimethyl sulfone binder. Dimethyl sulfone may be dry-blended with the metal powder by mixing it in the form of a powder, or it may be wet-...
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WO/2001/018415A1 |
A powdered metal sintered bearing has a polygonal interior bore with areas of increased density for load bearing and areas of less density that improve its ability to provide a flow of oil from the external surface of the bearing to the ...
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WO/2001/017705A2 |
The invention relates to a method for producing a substantially regular cylindrical body that consists of a deformable material, especially a sintered metal blank (10). Said blank is provided with an interior helical recess (12). The bla...
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WO/2001/008838A1 |
The invention relates to a method for producing a coupling body (1) by powder-metallurgy. Said coupling body comprises a crown (2) of coupling teeth (3) whose flanks (5) extend from wedge-shaped front faces (4) and are indented. Accordin...
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WO/2001/005541A1 |
A method of manufacturing a powder molded body, comprising the steps of filling powder material (17) into a cavity formed of a die (12) having a die hole (11) in a shape matching the contour of the power molded body and a lower punch (13...
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WO/2000/078438A1 |
The invention relates to a static micromixer comprising at least one mixing chamber and one guide component (1) which is connected upstream therefrom and which is provided for separately supplying fluids to be mixed or dispersed. Slotted...
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