Class / Patent application number | Description | Number of patent applications / Date published |
419033000 | Comminuting | 30 |
20100119402 | PRODUCTION OF ALLOYS BASED ON TITANIUM ALUMINIDES - In an alloy based on titanium aluminides, metal droplets are obtained from a titanium aluminide metal melt. The metal droplets are enriched with halogens resulting in halogen-enriched titanium aluminide metal droplets. The alloy is molded from the halogen-enriched titanium aluminide metal droplets by, preferably hot isostatic, pressing. Titanium aluminide powder can be heated in a container, for a predetermined period of time, wherein an atmosphere, enriched with halogens, is or will be provided in the container, so that a halogen-enriched titanium aluminide metal powder is formed, or metal droplets are formed from a titanium aluminide metal melt. The metal droplets are enriched with halogens so that halogen-enriched titanium aluminide metal droplets result. Subsequently, the alloy is molded from the halogen-enriched titanium aluminide metal droplets. | 05-13-2010 |
20100166593 | PRODUCTION METHOD OF EXTRUSION BILLET AND PRODUCTION METHOD OF MAGNESIUM ALLOY MATERIAL - A production method of an extrusion billet includes a step of preparing a plate or lump starting material comprising a magnesium alloy, a step of performing a plastic deformation process at a rolling reduction of 70% or more to the starting material at a temperature of 250° C. or lower to introduce a strain without generating dynamic recrystallization, a step of producing powder by granulating the material after the plastic deformation process, and a step of producing a powder billet by compressing the powder. | 07-01-2010 |
20100310407 | METHOD FOR PRODUCING SEMI-FINISHED PRODUCTS FROM NITI SHAPE MEMORY ALLOYS - Disclosed is a method for producing semi-finished products from a shape memory alloy, particularly an NiTi shape memory alloy, wherein a powder is first produced from a shape memory alloy, and subsequently the powder is divided into a coarse fraction and a fine fraction in a separating cut T. While the fine fraction is required, in particular, for the production of a first semi-finished product, employing the metal injection molding (MIM) method, the coarse fraction can be used for the production of a second semi-finished product, employing the hot isostatic pressing (HIP) method. The advantages of the invention can be summarized as follows. The MIM method for producing semi-finished products from a shape memory alloy is qualitatively improved and more cost-effective to implement if the coarse fraction that is typically obtained during powder production, but not used for the MIM process, can advantageously be supplied to a further process, in this case the HIP process. Due to the use of particularly fine powder, the semi-finished products produced by way of the MIM method have an advantageous, powder-metallurgical microstructure. In particular, the alloying elements are distributed particularly homogeneously in these semi-finished products, casting flaws or segregations do not usually occur, no anisotropy of the structure occurs as a result of the processing steps, and ternary alloys can be processed, which due to the mechanical properties thereof, cannot be processed by way of conventional forming methods. | 12-09-2010 |
20110044838 | Iron Silicide Sputtering Target and Method for Production Thereof - An iron silicide sputtering target in which the oxygen as a gas component in the target is 1000 ppm or less and a method of manufacturing such an iron silicide sputtering target are provided. The method includes the steps of melting/casting high purity iron and silicon under high vacuum to prepare an alloy ingot, subjecting the ingot to gas atomization with inert gas to prepare fine powder, and thereafter sintering the fine powder. The amount of impurities in the target will be reduced, the thickness of a βFeSi | 02-24-2011 |
20110268599 | PROCESS FOR PREPARING ZnAl TARGET MATERIAL AND ZnAl TARGET MATERIAL MADE THEREBY - The present invention provides a process for preparing a ZnAl alloy target material by providing a mixture of zinc powder and aluminum powder and obtaining a ZnAl alloy by sintering the mixture of zinc powder and aluminum powder by using a spark plasma sintering process. The present invention also describes a ZnAl alloy target material prepared by the above-described process. | 11-03-2011 |
20110286878 | METHOD FOR PRODUCTION OF NDFEBGA MAGNET AND NDFEBGA MAGNET MATERIAL - An NdFeBGa magnet material has a composition that is represented by the genera formula Nd | 11-24-2011 |
20110318215 | METHOD FOR PRODUCTION OF NdFeBCu MAGNET AND NdFeBCu MAGNET MATERIAL - A method for producing an NdFeBCu magnet includes supplying an alloy melt having a composition that is represented by the general formula Nd | 12-29-2011 |
20120093676 | COMPOUND MATERIAL COMPRISING A METAL AND NANO PARTICLES AND A METHOD FOR PRODUCING THE SAME - Disclosed herein is a composite material comprising a metal and nanoparticles, in particular carbon nano tubes as well as a method of producing the same. A metal powder and the nanoparticles are processed by mechanical alloying, such as to form a composite comprising metal crystallites having an average size in the range of 1-100 nm, preferably 10 to 100 nm or in a range of more than 100 nm and up to 200 nm at least partly separated from each other by said nanoparticles. | 04-19-2012 |
20120114517 | Thermoelectric material formed of Mg2Si-based compound and production method therefor - A thermoelectric material (and a method for producing the same) is essentially formed of an Mg | 05-10-2012 |
20120134871 | ACTIVE MATERIAL FOR A NEGATIVE ELECTRODE OF AN ALKALINE ACCUMULATOR OF THE NICKEL-METAL HYDRID TYPE - A hydridable alloy of formula R | 05-31-2012 |
20120156084 | METHOD OF MANUFACTURING SINTERED FERROMOLYBDENUM ALLOY FROM MIXED POWDER OF MILL SCALE AND MOLYBDENUM OXIDE POWDER BY SOLID GAS REACTION - The present invention relates to a method for manufacturing a sintered ferromolybdenum alloy, in which a mixed powder of a mill scale (a mixture of Fe, FeO and Fe | 06-21-2012 |
20130209308 | METHOD OF MAKING A METALLIC POWDER AND POWDER COMPACT AND POWDER AND POWDER COMPACT MADE THEREBY - A method of making a nanoscale metallic powder is disclosed. The method includes providing a base material comprising a metallic compound, wherein the base material is configured for chemical reduction by a reductant to form a metallic material. The method also includes forming a powder of the base material, the powder comprising a plurality of powder particles, the powder particles having an average particle size that is less than about 1 micron. The method further includes disposing the powder particles into a reactor together with the reductant under an environmental condition that promotes the chemical reduction of the base material and formation of a plurality of particles of the metallic material. | 08-15-2013 |
20130309122 | PRODUCING METHOD OF R-T-B-BASED SINTERED MAGNET - The present invention provides a producing method of R-T-B-based sintered magnets in which, the recovery chamber | 11-21-2013 |
20130323110 | P-TYPE SKUTTERUDITE MATERIAL AND METHOD OF MAKING THE SAME - The disclosure relates to a p-type skutterudite material and a method of making the same, comprising providing a p-type skutterudite material having a general formula: I | 12-05-2013 |
20140241929 | RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET - There are provided a rare-earth permanent magnet and a manufacturing method of the rare-earth permanent magnet with improved magnetic performance which is achieved through milling-ability-improved fine wet-milling step. In the method, coarsely milled magnet material is finely wet-milled in an organic solvent together with an organometallic compound expressed with a structural formula of M-(OR) | 08-28-2014 |
20140241930 | PERMANENT MAGNET AND METHOD FOR MANUFACTURING PERMANENT MAGNET - There are provided a permanent magnet and a manufacturing method thereof enabling, even when wet milling is employed, carbon content contained in magnet particles to be reduced in advance before sintering, and also enabling the entirety of the magnet to be densely sintered without causing a gap between a main phase and a grain boundary phase in the sintered magnet. Coarsely-milled magnet powder is further milled by a bead mill in an organic solvent. Thereafter, the magnet powder is compacted to produce a formed body. Hydrogen calcination process is performed through holding the formed body for several hours in hydrogen atmosphere at a pressure higher than normal atmospheric pressure at 200 through 900 degrees Celsius. Thereafter, through sintering process, a permanent magnet | 08-28-2014 |
20140286815 | R-T-B BASED ALLOY STRIP, AND R-T-B BASED SINTERED MAGNET AND METHOD FOR PRODUCING SAME - An R-T-B based alloy strip containing dendritic crystals including a R | 09-25-2014 |
20140286816 | R-T-B BASED SINTERED MAGNET AND PRODUCTION METHOD FOR SAME, AND ROTARY MACHINE - An R-T-B sintered magnet including a composition containing a rare earth element, a transition element and boron, containing essentially no dysprosium as a rare earth element, and having crystal grains with a composition containing a rare earth element, a transition element and boron, and grain boundary regions formed between the crystal grains, wherein the triple point regions which are grain boundary regions surrounded by 3 or more crystal grains have a composition containing a rare earth element, a transition element and boron and have a higher mass ratio of the rare earth element than the crystal grains, the average value of the area of the triple point regions in a cross-section being no greater than 2 μm | 09-25-2014 |
20140308152 | R-T-B BASED ALLOY STRIP, AND R-T-B BASED SINTERED MAGNET AND METHOD FOR PRODUCING SAME - An R-T-B based alloy strip including columnar crystals of an R | 10-16-2014 |
20140377120 | FORMATION OF P-TYPE FILLED SKUTTERUDITE BY BALL-MILLING AND THERMO-MECHANICAL PROCESSING - A method of manufacturing a thermoelectric material comprising: ball-milling a compound comprising a plurality of components, the first component M comprising at least one of a rare earth metal, an actinide, an alkaline-earth metal, and an alkali metal, the second component T comprising a metal of subgroup VIII, and the third component X comprises a pnictogen atom. The compound may be ball-milled for up to 5 hours, and then thermo-mechanically processed by, for example, hot pressing the compound for less than two hours. Subsequent to the thermo-mechanical processing, the compound comprises a single filled skutterudite phase with a dimensionless figure of merit (ZT) above 1.0 and the compound has a composition following a formula of MT | 12-25-2014 |
20150110664 | PROCESS FOR PREPARING SCALABLE QUANTITIES OF HIGH PURITY MANGANESE BISMUTH MAGNETIC MATERIALS FOR FABRICATION OF PERMANENT MAGNETS - A scalable process is detailed for forming bulk quantities of high-purity α-MnBi phase materials suitable for fabrication of MnBi based permanent magnets. | 04-23-2015 |
20150118095 | Method Of Manufacturing A Ferrous Alloy Article Using Powder Metallurgy Processing - A method of manufacturing a ferrous alloy article is disclosed and includes the steps of melting a ferrous alloy composition into a liquid, atomizing and solidifying of the liquid into powder particles, outgassing to remove oxygen from the surface of the powder particles, and consolidating the powder particles into a monolithic article. | 04-30-2015 |
20150125336 | METHOD FOR PRODUCING NdFeB SYSTEM SINTERED MAGNET - A method for producing a NdFeB system sintered magnet. The method includes: a hydrogen pulverization process, in which coarse powder of a NdFeB system alloy is prepared by coarsely pulverizing a lump of NdFeB system alloy by making this lump occlude hydrogen; a fine pulverization process, in which fine powder is prepared by performing fine pulverization for further pulverizing the coarse powder; a filling process, in which the fine powder is put into a filling container; an orienting process, in which the fine powder in the filling container is oriented; and a sintering process, in which the fine powder after the orienting process is sintered as held in the filling container. The processes from hydrogen pulverization through orienting are performed with neither dehydrogenation heating nor evacuation each for desorbing hydrogen occluded in the hydrogen pulverization process. The processes from hydrogen pulverization through sintering are performed in an oxygen-free atmosphere. | 05-07-2015 |
20150294786 | Magnet Recycling - Methods, systems, and apparatus, including computer programs encoded on computer storage media, for recycling magnetic material to restore or improve the magnetic performance One of the methods includes fragmenting magnetic material to form a powder, mixing the powder with a) a rare earth material R and b) an elemental additive A to produce a homogeneous powder, wherein the rare earth material comprises at least one of: i) Nd, ii) Pr, and iii) Dy, and the elemental additive A comprises at least one of: i) Co, ii) Cu, and iii) Fe, and sintering and magnetizing the homogenous powder to form a Nd—Fe—B magnetic product. | 10-15-2015 |
20150302960 | MANUFACTURING METHOD OF A POWDER FOR COMPACTING RARE EARTH MAGNET AND THE RARE EARTH MAGNET OMITTING JET MILLING PROCESS - The present invention discloses manufacturing methods of a powder for compacting rare earth magnet and rare earth magnet that omit jet milling process, which comprise the steps as follows: 1) casting: casting the molten alloy of rare earth magnet raw material by strip casting method to obtain a quenched alloy with average thickness in a range of 0.2˜0.4 mm; 2) hydrogen decrepitation: decrepitating the quenched alloy hydrogen under a hydrogen pressure between 0.01˜1 MPa for 0.5˜24 h to obtain the powder. The present invention improves the manufacturing processes which are before the process of jet milling for omitting the process of jet milling, thus simplifying the process; which may also acquire a low cost production by efficiently using the precious rare earth resource. | 10-22-2015 |
20150357119 | MANUFACTURING METHODS OF A POWDER FOR RARE EARTH MAGNET AND THE RARE EARTH MAGNET BASED ON EVAPORATION TREATMENT - A manufacturing method of a powder for rare earth magnet and the rare earth magnet based on evaporation treatment, includes the steps of: coarsely crushing an alloy for the rare earth magnet and then finely crushing to obtain a fine powder; and evaporating the fine powder and an evaporation material in vacuum or in inert gas atmosphere; wherein the weight ratio of the evaporation material evaporated to the fine powder and the fine powder is 10-6˜0.05:1. By adding the process of evaporation treatment of fine powder before the process of compacting under a magnetic field and after the process of fine crushing, the sintering property of the powder is changed drastically; a magnet with a high coercivity, a high squareness and a high heat resistance is obtained. | 12-10-2015 |
20160023276 | 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. | 01-28-2016 |
20160035487 | MNBI-BASED MAGNETIC SUBSTANCE, PREPARATION METHOD THEREOF, MNBI-BASED SINTERED MAGNET AND PREPARATION METHOD THEREOF - The method of preparing an MnBi-based magnetic substance according to the present invention includes: (a) preparing a mixed melt by simultaneously melting a manganese-based material and a bismuth-based material; (b) forming a non-magnetic MnBi-based ribbon by cooling the mixed melt; and (c) converting the non-magnetic MnBi-based ribbon into a magnetic MnBi-based ribbon by performing a heat treatment. The method for preparing an MnBi-based sintered magnet includes: (a) preparing a magnetic powder by pulverizing the MnBi-based magnetic substance; (b) molding the magnetic powder in a state where a magnetic field is applied; and (c) sintering the molded magnetic powder. | 02-04-2016 |
20160059313 | THERMOELECTRIC MATERIALS SYNTHESIZED BY SELF-PROPAGATING HIGH TEMPERATURE SYNTHESIS PROCESS AND METHODS THEREOF - The disclosure relates to thermoelectric materials prepared by self-propagating high temperature synthesis (SHS) process combining with Plasma activated sintering and methods for preparing thereof. More specifically, the present disclosure relates to the new criterion for combustion synthesis and the method for preparing the thermoelectric materials which meet the new criterion. | 03-03-2016 |
20160190421 | METHOD FOR PRODUCING A THERMOELECTRIC OBJECT FOR A THERMOELECTRIC CONVERSION DEVICE - A method for producing a thermoelectric object for a thermoelectric conversion device is provided. A starting material which has elements in the ratio of a half-Heusler alloy is melted and then cooled to form at least one ingot. The ingot is homogenized at a temperature of 1000° C. to 1400° C. for a period of time t, wherein 0.5 h≦t<12 h or 24 h06-30-2016 | |