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Class 419/23 - Powder shape or size characteristics


Subclass of Class 419 - Powder metallurgy processes
Definition: Processes in which one or more dimensions of or the configuration
No. of patents: 581
Last issue date: 08/31/2010


1                      
NumberTitleIssue Date
7785529Method and apparatus for sintering of inorganic materials as well as resulting objects
The invention refers to a method and an apparatus for fabricating a tridimensional solid object by sintering inorganic particles of controlled size distribution. The particles are directed onto a target area in a powdery stream in the shape of a conical surface whic...
08/31/2010
7749429Ceramic particle group and method for production thereof and use thereof
A ceramic particle group dispersed in a solvent in a state of primary particles of single crystal, a method for production thereof and a use thereof are disclosed. In one embodiment a method is disclosed for producing a sintered particle (ceramic particle) group of ...
07/06/2010
7485257Valve metal powders
A valve metal powder by is prepared by a particular set of sequential steps that involves the use of precursor having preformed morphology. The method by which the valve metal is prepared includes a stabilization step that results in the valve metal powder having se...
02/03/2009
74366693D multi-layer heat conduction diffusion plate
A 3D multi-layer heat conduction diffusion plate comprises at least one super conduction diffusion plate which is capable of quickly conducting heat energy, has a short cooling time, and can dissipate heat to a surrounding environment. A soft and bendable material c...
10/14/2008
7393498Sintered metal parts and method for the manufacturing thereof
A powder metal tooth part and a method of producing a toothed sintered metal part by uniaxially compacting an iron or iron-based powder having coarse particles in a single compaction step, subjecting the part to sintering, and subjecting the part to a surface densif...
07/01/2008
7384445Sintered metal parts and method for the manufacturing thereof
The invention concerns a sintered metal part which has a densified surface and sintered density of at least 7.35 g/cm3 and a core structure distinguished by a pore structure obtained by single pressing to at least 7.35 g/cm3 and single sinterin...
06/10/2008
7378053Method for producing copper-based material with low thermal expansion and high heat conductivity
The invention proposes a copper-based material with low thermal expansion and high thermal conductivity having good machinability and adaptability to nickel plating and also proposes a method for producing the same. The copper-based material is prepared through the ...
05/27/2008
7374599Dendritic metal nanostructures
A method for making dendritic metal nanostructures using a surfactant structure template, a metal salt, and electron donor species. ...
05/20/2008
7361203Sliding component and method for manufacturing the same
A bearing is manufactured by filling iron-based material powder and copper-based material powder in a filling portion of a mold, compacting those material powder so as to form a green compact, and then sintering the green compact. The copper-based material powder co...
04/22/2008
RE40100Fabrication of B/C/N/O/Si doped sputtering targets
The present invention relates to a method of manufacturing sputtering targets doped with non-metal components including boron, carbon, nitrogen, oxygen and silicon. A powder process is utilized whereby alloyed powders, which contain non-metal elements of B/C/N/O/Si ...
02/26/2008
7314530Press and magnet manufacturing method
A press machine 10 includes a die 12 with a through hole 12a that defines a cavity, a first press surface 14a and a second press surface 16a for pressing a magnetic powder 18 loaded in the cavity, and ma...
01/01/2008
7311874Sputter target and method for fabricating sputter target including a plurality of materials
A method of fabricating a sputter target comprises: homogenously blending a plurality of powders including at least a first powder and a second powder. The first powder is comprised of chromium (Cr), cobalt (Co), ruthenium (Ru), nickel (Ni), or iron (Fe). The second...
12/25/2007
7308750Method of manufacturing a magnesium diaphragm
In a rolling process, the level of rolling performed by a rolling mill for one operation is set to 1 μm to 20 μm. A magnesium substrate is rolled by rollers while being heated by a thermostatic chamber. As a result, there is manufactured a high-quality magnesium s...
12/18/2007
7300488Powder metal composition and method for producing components thereof
The present invention concerns a powder metal composition for producing powder metal components comprising a Co-based pre-alloyed powder, with irregularly shaped particles comprising at least 15% by weight Cr and less than 0.3% by weight C, admixed with graphite.
11/27/2007
7297271Titanium powder sintered compact
Provided are a porous sintered compact suitable for a filter, a power feeder in a polymer electrolyte membrane type water electrolyzer, a current collector in a solid polymer fuel cell and in addition a liquid dispersion plate, especially an ink dispersion plate for...
11/20/2007
7272529Dual wall turbine blade ultrasonic wall thickness measurement technique
A method and apparatus is provided to analyze a dual wall structure having at least one hollow core therein and having the same unknown material sound velocities in walls and in post as well. A transducer is located in at least two different positions with respect t...
09/18/2007
7255933Multi-layer sliding part and a method for its manufacture
A multi-layer sliding part is prepared by a process including mixing 1–50 parts by volume of a Cu-plated solid lubricant powder with 100 parts by volume of a Cu-based alloy powder comprising 5–20 mass % of Sn and a remainder of Cu to form a mixed powder, sinteri...
08/14/2007
7229715Anode for battery
An anode includes zinc particles. At least about 30% by weight of the zinc particles are spherical. ...
06/12/2007
7211219Oil-impregnant sintered bearing and manufacturing method thereof, and motor
The present invention is for providing an oil-impregnant sintered bearing, which can reliably preserve an oil film on a sliding face, and a method for manufacturing the oil-impregnant sintered bearing. An oil-impregnant sintered bearing is made by providing an inter...
05/01/2007
7195825Multi-layer sliding part and a method for its manufacture
A multi-layer sliding part is prepared by a process including mixing 1–50 parts by volume of a Cu-plated solid lubricant powder with 100 parts by volume of a Cu-based alloy powder comprising 5–20 mass % of Sn and a remainder of Cu to form a mixed powder, sinteri...
03/27/2007
7192464Composition for powder metallurgy
The present invention provides a composition for use in pressed powder metallurgy. The composition includes a plurality of substantially dry, discrete agglomerates, a portion of which include a first metal particle adhered to a second metal particle by a binder that...
03/20/2007
7166171Longitudinal magnetic field compacting method and device for manufacturing rare earth magnets
Disclosed is a longitudinal magnetic field compacting method and device for manufacturing a neodymium (Nd) based rare earth magnet in the shape of a butterfly for use in VCM of HDD or DVD, a disk or coin for use in coreless motors, and a block for use in linear moto...
01/23/2007
7166254Process for producing sintered aluminum alloy
A process for producing a sintered aluminum alloy in which dispersion of tensile strength is small and elongation property and fatigue strength are improved. In this process comprising the steps of compacting powder mixture containing rapidly solidified Al—Si powd...
01/23/2007
7157044Ti(C,N)-(Ti,Nb,W)(C,N)-Co alloy for finishing and semifinishing turning cutting tool applications
A titanium based carbonitride alloy contains Ti, Nb, W, C, N and Co. The alloy also contains, in addition to Ti, Co with only impurity levels of Ni and Fe, 4–7 at % Nb, 3–8 at % W and has a C/(C+N) ratio of 0.50–0.75. The Co content is 9–
01/02/2007
7144546Nitrided valve metals and processes for making the same
Nitrided valve metals are described, such as nitrided tantalum and nitrided niobium. The nitrided valve metals preferably have improved flow properties, higher Scott Densities, and/or improved pore size distribution which leads to improved physical properties of the...
12/05/2006
7140728Method of forming magnetic eyeglass appliance
An eyeglass accessory frame includes an auxiliary frame. The auxiliary frame includes a heat-treated magnetic alloy. The heat-treated magnetic alloy of the auxiliary frame is configured to magnetically couple the auxiliary frame to a primary frame having magnetizabl...
11/28/2006
7135141Method of manufacturing a sintered body
A method of manufacturing a sintered body, in which a material powder composed of metallic powder or alloy powder, a getter material having a higher oxidation potential than that of the material powder, and a hydride, which constitutes a hydrogen source, are sealed ...
11/14/2006
7083759Method of producing a heat dissipation substrate of molybdenum powder impregnated with copper with rolling in primary and secondary directions
A material for a semiconductor-mounting heat dissipation substrate comprises a copper-molybdenum rolled composite obtained by impregnating melted copper into a void between powder particles of a molybdenum powder compact to obtain a composite of molybdenum and coppe...
08/01/2006
7081149Silver powder for silver clay and silver clay containing this silver powder
A silver clay that can be obtained by sintering at a low temperature. A silver powder for silver clay is a fine Ag powder having an approximate average particle diameter equal to or less than 2 μm incorporated at 15 to 50 weight %, with the remainder being an Ag po...
07/25/2006
7073559Method for producing metal fibers
A method of producing metal fibers including melting a mixture of at least a fiber metal and a matrix metal, cooling the mixture to form a bulk matrix comprising at least a fiber phase and a matrix phase and removing at least a substantial portion of the matrix phas...
07/11/2006
7074247Method of making a composite abrasive compact
There is provided a method of making a composite abrasive compact which comprises an abrasive compact bonded to a substrate. The abrasive compact will generally be a diamond compact and the substrate will generally be a cemented carbide substrate. The composite abra...
07/11/2006
7070734Blended powder solid-supersolidus liquid phase sintering
A green article comprising an A-B powder mixture and methods of manufacturing such green articles and corresponding sintered articles are disclosed. The A-B powder mixture consists of a minor volume fraction of a relatively fine powder A and a complementary major vo...
07/04/2006
7066979Valve metal powders and process for producing them
Process for producing a valve metal powder by producing a precursor of desired morphology, converting the precursor into an oxide of the valve metal, stabilizing the structure of the oxide by heat treatment and reducing the stabilized oxide while retaining the morph...
06/27/2006
7067197Powder metallurgy sputtering targets and methods of producing same
A method of forming a sputtering target and other metal articles having controlled oxygen and nitrogen content levels and the articles so formed are described. The method includes surface-nitriding a deoxidized metal powder and further includes consolidating the pow...
06/27/2006
7056470Capacitor-grade lead wires with increased tensile strength and hardness
A capacitor-grade wire made from powder metallurgy containing at least niobium and silicon, wherein the niobium is the highest weight percent metal present in the niobium wire. The wire having a controlled tensile strength at finish diameter exceeds the strength of ...
06/06/2006
7041200Reducing particle generation during sputter deposition
In a magnetron sputtering chamber, a substrate is placed in the chamber and a deposition shield is maintained about the substrate to shield internal surfaces in the chamber. The deposition shield has a textured surface that may be formed by a hot pressing process or...
05/09/2006
7025928Method of flow forming a metal part
A method of flow forming sintered metal parts. The first step is forming a round disk by conventional powder metal process. The disk can be a donut shape part with or without a flange on one side of its outer diameter. The disk can then be copper impregnated or used...
04/11/2006
6991686Method for producing magnetostrictive material
To provide a method for producing a magnetostrictive material of excellent magnetostrictive characteristics. The method for producing a magnetostrictive material, wherein a mixture composed of Starting Materials A, B and C is sintered, where A is represented ...
01/31/2006
6993463Method for die design and powder pressing
A method of designing a primary geometry, such as for a forming die, to be used in a powder pressing application by using a combination of axisymmetric geometric shapes, transition radii, and transition spaces to simulate the geometry where the shapes can be selecte...
01/31/2006
6960240Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet
Rare earth magnet scrap and/or sludge is remelted for reuse. Once a rare earth-free magnet-constituent metal feed is loaded in a melting furnace and heated into a melt, a rare earth-containing metal feed and the rare earth magnet scrap and/or sludge are added to the...
11/01/2005
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