| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 419031000 | Heat treatment of powder | 15 |
| 20080260564 | COMPACTED MAGNETIC CORE, PRODUCTION METHOD OF THE SAME, AND MOTOR FOR ELECTRIC VEHICLE - A manufacturing method of a magnetic core includes a first step of applying a treatment liquid for forming an insulating film to iron powder; a second step of heat-treating the iron powder to which the treatment liquid has been applied, at a temperature higher than 350 degrees; a third step of compacting the heat-treated iron powder to form a magnetic core; and a forth step of heat-treating the magnetic core at a temperature ranging from 600 degrees to 800 degrees. | 10-23-2008 |
| 20090291012 | Production method for sintered part - A production method for a sintered part comprises preparing a metal powder and a binder composed of a thermoplastic resin and a wax, mixing the metal powder and 40 to 60 vol. % of the binder with respect to the metal powder into a mixed powder, and heating and kneading the mixed powder into a raw material. This production method further includes supplying a predetermined amount of the raw material in a hole of a die and compacting the raw material into a green compact having a predetermined shape by pressing the raw material by a punch. This production method further includes ejecting the green compact from the hole of the die, removing the binder from the ejected green compact by heating, and sintering the green compact by heating so as to diffusion bond particles of the green compact. The compacting is performed by pressing at a moving rate U of the punch, which is not more than a rate calculated from the following equation (1). In this case, ΔP (Pa) is pressing power of the punch, μ (Pa·s) is viscosity of the raw material, L (m) is a length of the green compact, and De (m) is a corresponding tube diameter. | 11-26-2009 |
| 20100233013 | Process For Heat Treating Metal Powder And Products Made From The Same - A method of heat treating metal powder and/or metal oxide powder by microwave energy is described. Furthermore, products made by the various processes of the present invention are further described. | 09-16-2010 |
| 20120230860 | PURIFICATION PROCESS - A method for purifying metal M | 09-13-2012 |
| 20130189145 | METHOD FOR PRODUCING MOLYBDENUM TARGET - Provided is a method by which a low-oxygen and high-density molybdenum target can be efficiently obtained, while fully utilizing the characteristics of each molybdenum (Mo) starting material powder. The present invention provides a method for producing a molybdenum target, wherein a mixed powder that is obtained by mixing a molybdenum powder A, which is prepared by reducing molybdenum oxide and then crushing the resulting so as to have an average particle diameter of 2-15 μm, and a molybdenum powder B, which is prepared by crushing a molybdenum bulk starting material having a density of not less than 6.64×10 (kg/m | 07-25-2013 |
| 20140105779 | RARE EARTH SINTERED MAGNET AND MAKING METHOD - A strip cast alloy containing Nd in excess of the stoichiometry of Nd | 04-17-2014 |
| 20140178241 | ABSORBED IMPURITIES REDUCTION IN ADDITIVE MANUFACTURING SYSTEMS - A pulverant material supply system has an outer shell, an inner shell, and a plurality of openings to a passage within the inner shell to allow a reducing fluid into the pulverant material contained therein. The liner is made from a non-evaporable getter alloy. | 06-26-2014 |
| 20140271326 | Powder Distribution for Laser Sintering Systems - There is provided improved laser sintering systems that increase the powder density and reduce anomalies of the powder layers that are sintered, that measure the laser power within the build chamber for automatic calibration during a build process, that deposit powder into the build chamber through a chute to minimize dusting, and that scrubs the air and cools the radiant heaters with recirculated scrubbed air. The improvements enable the laser sintering systems to make parts that are of higher and more consistent quality, precision, and strength, while enabling the user of the laser sintering systems to reuse greater proportions of previously used but unsintered powder. | 09-18-2014 |
| 20150078951 | POWDER METALLURGICALLY MANUFACTURED HIGH SPEED STEEL - The present invention relates to a high speed steel with a chemical composition that comprises, in % by weight: | 03-19-2015 |
| 20150340136 | MANUFACTURING METHOD OF AN ALLOY POWDER FOR RARE EARTH MAGNET AND THE RARE EARTH MAGNET BASED ON HEAT TREATMENT - A manufacturing method of an alloy powder for rare earth magnet and the rare earth magnet based on heat treatment includes the following: an alloy of the rare earth magnet is firstly coarsely crushed and then finely crushed by jet milling to obtain a fine powder; the fine powder is obtained by being heated in vacuum or in inert gas atmosphere at a temperature of 100° C.˜1000° C. for 6 minutes to 24 hours. The heat treatment of fine powder is performed after the process of finely crushed jet milling before the process of compacting under a magnetic field, so that the sintering property of the powder is changed drastically, and it obtains a magnet with a high coercivity, a high squareness and a high heat resistance. | 11-26-2015 |
| 20150360286 | RECYCLING PROCESS FOR RECYCLING GRANULATED METALLIC MATERIALS CONTAINING SURFACE IMPURITIES - The present invention relates to a recycling process for recycling granulated metallic materials containing surface impurities combining a subprocess | 12-17-2015 |
| 20160001369 | METHOD FOR PRODUCING POWDER METAL COMPOSITIONS FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS AND METHOD OF PRODUCING SAME - A powder metal composition for high wear and temperature applications is made by atomizing a melted iron based alloy including 3.0 to 7.0 wt. % carbon; 10.0 to 25.0 wt. % chromium; 1.0 to 5.0 wt. % tungsten; 3.5 to 7.0 wt. % vanadium; 1.0 to 5.0 wt. % molybdenum; not greater than 0.5 wt. % oxygen; and at least 40.0 wt. % iron. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming elements to oxidize during atomization. The powder metal composition includes metal carbides in an amount of at least 15 vol. %. The microhardness of the powder metal composition increases with increasing amounts of carbon and is typically about 800 to 1,500 Hv50. | 01-07-2016 |
| 20160012946 | METHOD OF MANUFACTURING ALLOY FOR R-T-B-BASED RARE EARTH SINTERED MAGNET AND METHOD OF MANUFACTURING R-T-B-BASED RARE EARTH SINTERED MAGNET | 01-14-2016 |
| 20160136727 | ALLOY STEEL POWDER FOR POWDER METALLURGY AND METHOD OF PRODUCING IRON-BASED SINTERED BODY - Provided is an alloy steel powder for powder metallurgy containing an iron-based powder as a main component that is capable of achieving both high strength and high toughness in a sintered body using the same. In the alloy steel powder, the iron-based powder contains a reduced powder, and Mo content with respect to a total amount of the alloy steel powder is 0.2 mass % to 1.5 mass %, Cu powder content with respect to a total amount of the alloy steel powder is 0.5 mass % to 4.0 mass % and graphite powder content with respect to a total amount of the alloy steel powder is 0.1 mass % to 1.0 mass %. | 05-19-2016 |
| 20160144427 | FLUIDIZED BED FOR DEGASSING AND HEAT TREATING POWDERS - A method includes introducing metallic powder into a fluidizing chamber of a fluidized bed reactor. A fluidization gas is flowed into the fluidizing chamber. The metallic power becomes entrained in the flow of the fluidization gas. Adsorbed water is removed from the metallic powder by exposing the metallic powder to the fluidization gas for a duration of time and at a treatment temperature to cause the adsorbed water to be removed from the metallic powder. | 05-26-2016 |
