Class / Patent application number | Description | Number of patent applications / Date published |
419032000 | Mechanical blending | 21 |
20080260565 | PROCESS FOR PRODUCING CONCENTRIC-CIRCULAR-GRADIENT FUNCTIONAL MATERIAL FOR BIOGENIC USE AND APPARATUS FOR PRODUCING THE SAME - A concentric-circular-gradient functional material for biogenic use is produced using first, second, third and forth cylindrical partitions, and a cylindrical dice which are concentrically stood on a supporting stand. Ti powder (A) fills the first cylindrical partition. A first mixed powder including Ti powder (A) and biogenic material powder (B) fills between the first and second cylindrical partitions. A second mixed powder including a smaller amount of Ti powder (A) than the first mixed powder fills between the second and third cylindrical partitions. A third mixed powder including a smaller amount of Ti powder (A) than the second mixed powder fills between the third and fourth cylindrical partitions. The biogenic material powder (B) fills between the fourth cylindrical partition and the dice. The first to fourth partitions are pulled out. The dice is capped using a punch. The powders are sintered using a discharge plasma sintering machine. | 10-23-2008 |
20080274003 | Electrode, electrical contact and method of manufacturing the same - An electrical contact comprising a matrix of an alloy of a high electro-conductive metal and a low melting point metal and particles of a refractory metal dispersed in the matrix. The electrical contact comprises the alloy containing a low melting point metal of at least one of Sn, Te and Be, and the refractory metal is Cr. The alloy comprising the low melting point metal in an amount of 0.5 to 3% by weight and the balance being Cu. | 11-06-2008 |
20090238712 | METHOD OF PRODUCING A SPUTTER TARGET MATERIAL - A sputter target material which is of a sintered material, wherein the sputter target material consists of 0.5 to 50 atomic % in total of at least one metal element (M) selected from the group of Ti, Zr, V, Nb and Cr, and the balance of Mo and unavoidable impurities, and has a microstructure seen at a perpendicular cross section to a sputtering surface, in which microstructure oxide particles exist near a boundary of each island of the metal element (M), and wherein the maximum area of the island, which is defined by connecting the oxide particles with linear lines so as to form a closed zone, is not more than 1.0 mm | 09-24-2009 |
20090252637 | JOINING OF DIFFICULT-TO-WELD MATERIALS AND SINTERING OF POWDERS USING A LOW-TEMPERATURE VAPORIZATION MATERIAL - The present invention discloses a process for sintering particles using a sintering aid. The sintering aid can be brought into contact with a plurality of particles to be sintered such that a mixture of the particles and the sintering aid is provided. The mixture of particles and the sintering aid is heated and at least part of the sintering aid is vaporized. Sintering of the particles to form a sintered component followed by cooling of the sintered component can complete the process, or in the alternative, a subsequent heating step or steps can be included whereby additional vaporization of the sintering aid can occur. | 10-08-2009 |
20100028194 | Method For Protecting Powder Metallurgy Alloy Elements From Oxidation And/Or Hydrolization During Sintering - A method for protecting powder metallurgy alloy elements from oxidation and/or hydrolyzation during sintering. The method includes (1) coating the admixed alloy elements in an inert (e.g., nitrogen) atmosphere with a hydrophobic lubricant that is capable of becoming mobile during pressing, the amount of lubricant being at least 45% of the total volume of all components to be added to the base metal powder; (2) mixing the lubricant-coated admixed alloy elements with the base metal powder to form a mixture; (3) pressing the mixture to form a pre-sintered part having a green density that is from about 95% to about 98% of a calculated pore-free density; and (4) sintering the part. | 02-04-2010 |
20100034688 | METHOD OF MANUFACTURING ORIENTED BODY, MOLDED BODY AND SINTERED BODY AS WELL AS METHOD OF MANUFACTURING PERMENANT MAGNET - There is provided a method of manufacturing a permanent magnet having extremely high orientation by arranging such that the crystal fractures of alloy raw meal powder having more equal crystal orientational relationship are combined in magnetic field. In this invention, alloy raw meal powder is filled into a cavity and, while agitating the alloy raw meal powder inside the cavity, is oriented in the magnetic field. This oriented body is then compression molded in the magnetic field into a predetermined shape. | 02-11-2010 |
20100233014 | IRON-BASED POWDER COMBINATION - A powder metallurgical combination is provided comprising an iron-based powder A comprising core particles of iron to which core particles nickel is diffusion alloyed and wherein said nickel diffusion alloyed to said core particles comprises 4-7% (preferably 4.5-6%) by weight of said iron-based powder A, and a powder B substantially consisting of particles of pure iron. Further a method is provided for preparing a powder metallurgical combination. | 09-16-2010 |
20100278682 | SINTERED BINARY ALUMINUM ALLOY POWDER SINTERED MATERIAL AND METHOD FOR PRODUCTION THEREOF - Disclosed is a binary aluminum alloy powder sintered material which comprises aluminum and iron, which has a completely crystalline microstructure comprising an aluminum matrix and an α-Al phase and at least any one phase of an Al | 11-04-2010 |
20100310406 | Method for producing powder mixture for powder metallurgy, and method for producing sintered body - The present invention provides a method for producing a powder mixture for powder metallurgy, which allows production of a green compact having both high density and high lubricity (low demolding force). The method, according to the present invention, for producing a powder mixture for powder metallurgy including an iron-base powder, a mechanical characteristic-improving powder and a lubricant, the method includes the steps of: mixing the iron-base powder and/or the mechanical characteristic-improving powder with an amide-based lubricant solution; removing a solvent in the solution; and coating the surface of the iron-base powder and/or the mechanical characteristic-improving powder with an amide-based lubricant. | 12-09-2010 |
20110052440 | MANUFACTURE OF SINTERED SILICON ALLOY - Dehydration and drying of a silicon alloy argil which uses water as a principal binder are carried out by a freeze-drying process, a microwave irradiation process, or a combination thereof. In the freeze-drying process, the shaped compact is put into a cooling medium within 5 minutes after completion of shape forming, retained therein for at least 5 minutes to quick-freeze water within the compact while the water is still in a finely-dispersed condition. The compact is exposed to a pressure below the triple point pressure of water. In the microwave irradiation process, the shaped compact is put into a container exposed to continuous microwave irradiation at 2.450 GHz for at least 5 minutes while under a reduced pressure below atmospheric pressure. | 03-03-2011 |
20130011293 | SLURRY RECYCLING METHOD, PRODUCING METHOD OF RARE EARTH SINTERED MAGNET AND SLURRY RECYCLING APPARATUS - The present invention provides a producing method of a rare earth sintered magnet which is suitable as a producing method of a high performance rare earth sintered magnet which can reduce the number of steps for reusing defective molded bodies generated in a wet molding step of the rare earth sintered magnet, and which has a small content amount of oxygen. The invention also provides a slurry recycling method used for the producing method, and a slurry recycling apparatus. Each of the methods includes a crushing step of crushing, in mineral oil and/or synthetic fluid, a molded body in which slurry formed from alloy powder for a rare earth sintered magnet and mineral oil and/or synthetic fluid is wet molded in magnetic field, and recycling the crushed molded body into slurry. | 01-10-2013 |
20130149185 | Fe-Co Based Target Material and Method for Producing the Same - A method for producing a Fe—Co based target material for forming a soft magnetic thin-film comprising the steps of: preparing a first raw-material powder having an Fe:Co weight ratio ranging from 8:2 to 7:3 and a second raw-material powder having an Fe—Co weight ratio ranging from 2:8 to 0:10; mixing the first raw-material powder and the second raw-material powder together to obtain a powder mixture having an Fe:Co weight ratio ranging from 8:2 to 2:8; and applying a pressure of not less than 100 MPa to the powder mixture at a temperature ranging from 1073 to 1473 K for consolidation. At least one additional element selected from the group consisting of Nb, Zr, Ta and Hf is added to either one or both of the first and second raw-material powders in a total amount of 3 to 15 atom % with respect to the total amount of the powder mixture. | 06-13-2013 |
20130164165 | METHODS OF MANUFACTURING MULTI-ELEMENT THERMOELECTRIC ALLOYS - Disclosed is a method of forming a multi-element thermoelectric alloy. A plurality of binary alloys and milling balls are put in a milling pot to perform a ball-milling process to obtain a multi-element thermoelectric alloy powders. The milling balls have a diameter of 1 mm to 10 mm. The milling balls and the binary alloys have a weight ratio of 1:1 to 50:1. The rotation rate of the ball-milling process is of 200 rpm to 1000 rpm. The ball-milling process is processed for 4 hours to 12 hours. | 06-27-2013 |
20130243638 | Magnetic Material And A Method For Producing Same - A magnetic material is provided, the magnetic material including a powder composite material sintered from at least one magnetizable alloy powder of a high energy density, and fibers admixed with the powder composite. The fibers may be aligned in one direction to improve at least one of high-melting, high-modulus and high-strength material properties. | 09-19-2013 |
20140140881 | METHOD FOR PRODUCING A THERMOELECTRIC SOLID ELEMENT - The present invention relates to a method | 05-22-2014 |
20140154127 | Alloy and Sputtering Target Material for Soft-Magnetic Film Layer in Perpendicular Magnetic Recording Medium, and Method for Producing the Same - There are provided a sputtering target material for a soft-magnetic film layer with a high saturation magnetic flux density and high amorphous properties and a method for producing the sputtering target material. The target material is made of an alloy comprising one or more of Zr, Hf, Nb, Ta and B in an amount satisfying 5 at %≦(Zr+Hf+Nb+Ta)+B/2≦10 at % and having 7 at % or less of B; 0 to 5 at % in total of Al and Cr; and the balance being Co and Fe in an amount satisfying 0.20≦Fe/(Fe+Co)≦0.65 (at % ratio) with unavoidable impurities. | 06-05-2014 |
20150367413 | LUBRICANT FOR METAL POWDER METALLURGY, METHOD OF PRODUCING SAME, METAL POWDER COMPOSITION, AND METHOD OF PRODUCING METAL POWDER METALLURGY PRODUCT - The lubricant for metal powder metallurgy of the present invention consists of particulates that contain at least one amide compound selected from the group consisting of amide compounds represented by general formula (1) below and amide compounds represented by general formula (2) below, wherein particulates with a particle diameter larger than 198 μm are less than 1 mass % and particulates with a diameter of 10 μm or less are not more than 10 mass %, | 12-24-2015 |
20160074942 | PRODUCTION OF SUBSTANTIALLY SPHERICAL METAL POWDERS - A method for producing a substantially spherical metal powder is described. A particulate source metal includes a primary particulate and has an average starting particle size. The particulate source metal is optionally ball milled and mixed with a binder in a solvent to form a slurry. The slurry is granulated to form substantially spherical granules, wherein each granule comprises an agglomeration of particulate source metal in the binder. The granules are debinded at a debinding temperature to remove the binder from the granules forming debinded granules. The debinded granules are at least partially sintered at a sintering temperature such that particles within each granule fuse together to form partially or fully sintered solid granules. The granules can then be optionally recovered to form a substantially spherical metal powder. | 03-17-2016 |
20160101471 | NOVEL AMORPHOUS AND NANOSTRUCTURED Nb-Zr ALLOY - A method for preparing an alloy, including mixing elemental powders of Nb and Zr to obtain a powder mixture, and mechanical alloying to obtain an alloyed powder mixture, where the alloyed powder is more than 50% amorphous. The spark plasma sintering machine was used for the consolidation of the Nb | 04-14-2016 |
20160141100 | RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET - There are provided a rare-earth permanent magnet and a manufacturing method thereof capable of preventing deterioration of magnet properties. In the method, magnet material is milled into magnet powder. Next, a mixture is prepared by mixing the magnet powder and a binder made of long-chain hydrocarbon and/or of a polymer or a copolymer consisting of monomers having no oxygen atoms. Next, the mixture is formed into a sheet-like shape so as to obtain a green sheet. After that, the green sheet is held for a predetermined length of time at binder decomposition temperature in a non-oxidizing atmosphere so as to remove the binder by causing depolymerization reaction or the like to the binder, which turns into monomer. The green sheet from which the binder has been removed is sintered by raising temperature up to sintering temperature. Thereby a permanent magnet | 05-19-2016 |
20160196903 | RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET | 07-07-2016 |