Class / Patent application number | Description | Number of patent applications / Date published |
148513000 | Treating loose metal powder, particle or flake | 16 |
20090090435 | Process for Producing Magnetic Powder and Process for Producing Dust Core - A process for producing a magnetic powder which is sufficiently reduced in core losses such as iron loss and hysteresis loss and has sufficient strength; and a process for producing a dust core. The process for magnetic powder production comprises using a magnetic-material powder produced by water atomization as a raw powder and subjecting the powder to spheroidizing in which a mechanical impact is applied to the powder to spheroidize the powder particles. After the spheroidizing, the powder is subjected to a grain enlarging treatment in which the powder is annealed at a temperature not lower than the austenite transformation point. The process for dust core production comprises compacting the magnetic powder thus produced. | 04-09-2009 |
20090120539 | Method of Preparing Metal Matrix Composite and Coating Layer and Bulk Prepared Thereby - This invention provides a method of preparing a metal matrix composite, and a coating layer and bulk prepared by using the same and in particular, it provides a method of preparing a metal matrix composite, which comprises the steps of providing a substrate; preparing a mixed powder comprising i) a first metal powder comprising a metal, alloy or mixture particle thereof, ii) a second metal powder comprising an intermetallic compound forming metal particle which forms an intermetallic compound along with the metal or the alloy element of the alloy, and iii) a ceramic powder comprising a ceramic or mixture particle thereof; injecting the mixed powder prepared above into a spray nozzle for coating; coating the mixed powder on the surface of the substrate by accelerating the mixed powder in the state of non-fusion at a speed of 300 to 1,200 m/s by the flow of transportation gas flowing in the spray nozzle; and forming the intermetallic compound by the thermal treatment of the coated coating layer, and a coating layer and bulk prepared by using the same, whereby the coating layer and bulk material with high wear resistance and excellent resistance against fatigue crack on the surface without causing damages such as heat strain to the substrate during the preparation of the coating layer can be provided. | 05-14-2009 |
20090260722 | High strength L12 aluminum alloys - High temperature aluminum alloys that can be used at temperatures from about −420° F. (−251° C.) up to about 650° F. (343° C.) are described. The alloys are strengthened by dispersion of particles based on the L1 | 10-22-2009 |
20100139815 | Conversion Process for heat treatable L12 aluminum aloys - A method for producing high strength aluminum alloy containing L1 | 06-10-2010 |
20100154941 | Environment-friendly Non-noise matte Granulation Technique - The invention makes public an environment-friendly non-noise matte granulation technique. Melted matte flows out from the chute, then gas is sprayed on the matte through spray facilities; the gas disperses the melted matte into a large amount of tiny liquid drops, and cools the dispersed tiny drops to semi-melted or solid copper grains; in the following dropping course, the copper grains are quenched by pressurized cold water; finally, copper grains drop to the cold-water pond along with the pressurized cold water for further cooling, and the produced sand-like mattes are sent to the next procedure through dehydration-and-transportation system. It can overcome explosion and prevent chemical reaction in quenching, reduce noise pollution, and has the properties of simple procedure and easy operation to settle the problems existed in water quenching of matte. | 06-24-2010 |
20100314008 | Sonochemically Mediated Preparation of Nanopowders of Reactive Metals - A nanopowder and a method of making are disclosed. The nanopowder may be in the form of nanoparticles with an average size of less than about 200 nm and contain a reactive transition metal, such as hafnium, zirconium, or titanium. The nanopowder can be formed in a liquid under sonication by reducing a halide of the transition metal. | 12-16-2010 |
20110017359 | HIGH STRENGTH L12 ALUMINUM ALLOYS - High strength heat treatable aluminum alloys that can be used at temperatures from about −420° F. (−251° C.) up to about 650° F. (343° C.) are described. The alloys are strengthened by dispersion of particles based on the L1 | 01-27-2011 |
20110056593 | Flaky Powder for an Electromagnetic Wave Absorber, and Method for Producing Same - A flake powder for an electromagnetic wave absorber and a method of manufacturing the flake powder are described. The flake powder is made-up of nano-sized metals and pores forming a flake body having a composite structure formed by aggregation of nano-sized magnetic metals. The method includes the steps of preparing a metal oxide; milling the metal oxide into nano-sized powder; reducing the milled metal oxide powder to form a magnetic metal powder; flaking the reduced magnetic metal powder; and heat treating the flaked magnetic metal powder to relieve residual stress thereof. | 03-10-2011 |
20110253264 | Iron-Carbon Master Alloy - An iron-carbon master alloy is described, with a C content of 0.3 to 8 wt % and an upper limit of alloying metals Ni<10 wt %, P<4 wt %, Cr<5 wt %, preferably<1 wt %, Mn<5 wt %, preferably<1 wt %, Mo<3 wt %, W<3 wt %, Cu<1 wt %, a particle size of >20 μm and a hardness of <350 HV 0.01, and a method for the manufacture of said master alloy. | 10-20-2011 |
20120042993 | Control of Microstructure in Soldered, Brazed, Welded, Plated, Cast or Vapor Deposited Manufactured Components - Disclosed are methods and systems for controlling of the microstructures of a soldered, brazed, welded, plated, cast, or vapor deposited manufactured component. The systems typically use relatively weak magnetic fields of either constant or varying flux to affect material properties within a manufactured component, typically without modifying the alloy, or changing the chemical composition of materials or altering the time, temperature, or transformation parameters of a manufacturing process. Such systems and processes may be used with components consisting of only materials that are conventionally characterized as be uninfluenced by magnetic forces. | 02-23-2012 |
20130240095 | HEAT TREATABLE L12 ALUMINUM ALLOYS - High temperature heat treatable aluminum alloys that can be used at temperatures from about −420° F. (−251° C.) up to about 650° F. (343° C.) are described. The alloys are strengthened by dispersion of particles based on the L1 | 09-19-2013 |
20140048184 | FINISH HEAT TREATMENT METHOD AND FINISH HEAT TREATMENT APPARATUS FOR IRON POWDER - In a finish heat treatment method and finish heat treatment apparatus for an iron powder, a raw iron powder is placed on a continuous moving hearth and continuously charged into the apparatus. In the pretreatment zone, the raw iron powder is subjected to a pretreatment of heating the raw iron powder in an atmosphere of hydrogen gas and/or inert gas at 450 to 1100° C. In decarburization, deoxidation, and denitrification zones, the pretreated iron powder is subsequently subjected to at least two treatments of decarburization, deoxidation, and denitrification. In the pretreatment zone, a hydrogen gas and/or an inert gas serving as a pretreatment ambient gas is introduced separately from an ambient gas used in the at least two treatments is introduced from the upstream side of the pretreatment zone and released from the downstream side so as to flow in the same direction as a moving direction of the moving hearth. | 02-20-2014 |
20140238553 | SINTERED BODY THAT IS PRECURSOR OF RARE-EARTH MAGNET, AND METHOD FOR PRODUCING MAGNETIC POWDER FOR FORMING THE SAME - Provided are a sintered body for forming a rare-earth magnet with a high degree of orientation and high remanent magnetization, and a method for producing magnetic powder for forming the sintered body. A sintered body S that is a precursor of a rare-earth magnet, the sintered body S including crystal grains g | 08-28-2014 |
20140251509 | ALLOY FLAKE PRODUCTION APPARATUS AND PRODUCTION METHOD FOR RAW MATERIAL ALLOY FLAKES FOR RARE EARTH MAGNET USING THE APPARATUS - An alloy flake production apparatus ( | 09-11-2014 |
20150027595 | Aluminum Material Having Improved Precipitation Hardening - An aluminum material for producing light-weight components includes aluminum (Al), scandium (Sc), zirconium (Zr) and ytterbium (Yb), where a weight ratio of scandium (Sc) to zirconium (Zr) to ytterbium (Yb) [Sc/Zr/Yb] is in a range from 10/5/2.5 to 10/2.5/1.25. | 01-29-2015 |
20160254100 | NIOBIUM GRANULATED POWDER PRODUCTION METHOD | 09-01-2016 |