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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 22148. Отображено 100.
05-01-2012 дата публикации

Resonator

Номер: US20120001700A1
Автор: Robert J. P. Lander
Принадлежит: NXP BV

A method of manufacturing a MEMS resonator formed from a first material having a first Young's modulus and a first temperature coefficient of the first Young's modulus, and a second material having a second Young's modulus and a second temperature coefficient of the second Young's modulus, a sign of the second temperature coefficient being opposite to a sign of the first temperature coefficient at least within operating conditions of the resonator. The method includes the steps of forming the resonator from the first material; applying the second material to the resonator; and controlling the quantity of the second material applied to the resonator by the geometry of the resonator.

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Номер записи: 1
09-08-2017 дата публикации

Форсунка для распыления расплавленных металлов

Номер: RU0000173081U1
Автор: Алексей Геннадьевич Меркушев, Алексей Сергеевич Фефелов, Максим Владимирович Ильиных, Шейхали Мусаевич Шейхалиев
Принадлежит: Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина"

Полезная модель относится к области порошковой металлургии. Данное устройство может использоваться при производстве металлических порошков из алюминиевых сплавов, нержавеющих и высоколегированных сталей, сплавов на основе меди.Устройство включает в себя металлический корпус, сливное устройство для подачи расплава, газовую камеру, газовые сопла, расположенные на одном диаметре относительно оси сливного устройства. Путем поворота газовых сопел можно изменять угол между струей расплава и осью газового сопла.Результатом является возможность получения металлических порошков мелкой (менее 50 мкм) фракции с высоким выходом годного (до 50% и более). 1 ил. Ц 1 173081 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ 19 11] м ме. 13 ВУ + 64° 94 (51) МПК В22Е 9/08 (2006.01) ВО5В 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016125653, 27.06.2016 (24) Дата начала отсчета срока действия патента: 27.06.2016 Дата регистрации: 09.08.2017 Приоритет(ы): (22) Дата подачи заявки: 27.06.2016 (45) Опубликовано: 09.08.2017 Бюл. № 22 Адрес для переписки: 620002, г. Екатеринбург, ул. Мира, 19, УрФУ, Центр интеллектуальной собственности, Маркс Т.В. (72) Автор(ы): Шейхалиев Шейхали Мусаевич (КП), Фефелов Алексей Сергеевич (КО), Меркушев Алексей Геннадьевич (КО), Ильиных Максим Владимирович (КП) (73) Патентообладатель(и): Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" (КО) (56) Список документов, цитированных в отчете о поиске: ЗО 300252 АТ, 07.04.1971. 50 1433640 АЛ, 30.10.1988. 5Ц 1482773 АТ, 30.05.1989. ]Р 1319608 А, 25.12.1989. (54) ФОРСУНКА ДЛЯ РАСПЫЛЕНИЯ РАСПЛАВЛЕННЫХ МЕТАЛЛОВ (57) Реферат: Полезная модель относится к области порошковой металлургии. Данное устройство может использоваться при производстве металлических порошков из алюминиевых сплавов, нержавеющих и высоколегированных сталей, сплавов на основе меди. ...

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Номер записи: 2
15-03-2012 дата публикации

Method of processing metal powder

Номер: US20120060576A1
Автор: Arno Friedrichs
Принадлежит: Arno Friedrichs

The invention relates to a method of processing metal powder consisting a plurality of metal powder pellets, comprising the following steps: heating the metal powder pellets until they are in a doughy state, causing a collision of the metal power pellets in doughy state with an impact body to form deformed metal powder particles and collecting the deformed metal powder particles in a collecting vessel.

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Номер записи: 3
21-06-2012 дата публикации

Bulk Nanocomposite Magnets and Methods of Making Bulk Nanocomposite Magnets

Номер: US20120153212A1
Автор: J. Ping Liu
Принадлежит: University of Texas at Arlington

The present invention relates to bulk magnetic nanocomposites and methods of making bulk magnetic nanocomposites.

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Номер записи: 4
12-07-2012 дата публикации

Scale-shaped filmy fines dispersion

Номер: US20120174824A1
Автор: Masato Hirota, Toshio Takenaka
Принадлежит: Oike and Co Ltd

Provided is a scale-shaped filmy fines dispersion. More specifically, scale-shaped filmy fines are subjected to a treatment for keeping the scale-shaped filmy fines from easily settling out. In the case of a metallic pigment using the scale-shaped filmy fines, the scale-shaped filmy fines are dispersed in the ink. As a result, nozzle clogging can be prevented, and the obtained print can achieve abundant metallic luster. The scale-shaped filmy fines dispersion contains, in a solvent, scale-shaped filmy fines obtained by finely grinding a simple metal, an alloy, or a metal compound. The scale-shaped filmy fines have a mean length of 0.5 μm or more and 5.0 μm or less, a maximum length of 10 μm or less, a mean thickness of 5 nm or more and 100 nm or less, and an aspect ratio of 20 or more.

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Номер записи: 5
26-07-2012 дата публикации

Method of manufacturing metal composite material, metal composite material, method of manufacturing heat dissipating component, and heat dissipating component

Номер: US20120189839A1
Автор: Hidekazu Takizawa, Shinichi Anzawa, Shoji Koizumi, Syuzo Aoki, Takuya Kurosawa, Takuya Oda, Yutaka Komatsu
Принадлежит: Nagano Prefecture, Shinko Electric Industries Co Ltd

A method of manufacturing a metal composite material includes applying a mechanical impact force to a carbon material and a metal powder at such an intensity as capable of pulverizing the carbon material, thereby adhering the carbon material to a surface of the metal powder.

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Номер записи: 6
14-02-2013 дата публикации

Copper alloy for sliding materials

Номер: US20130036865A1
Автор: Takeshi Kobayashi, Tomohiro Sato, Toru Maruyama, Yoshimasa Hirai
Принадлежит: Individual

A copper alloy having excellent sliding performance is produced without relying on lead or molybdenum. The copper alloy contains a sintered Cu 5 FeS 4 material produced by sintering a raw material powder that comprises Cu, Fe and S and is produced by a gas atomizing method.

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Номер записи: 7
21-03-2013 дата публикации

Production of Flake Particles

Номер: US20130068410A1
Автор: Donohue Paul Peter, Higgins David Edward, Lederer Peter Gerald, Pitt Andrew Martin
Принадлежит: QINETIQ LIMITED

The invention enables thin film particles of a controlled shape and size to be generated directly upon release of a thin film coating from a textured Substrate upon which they are grown directly. The substrate comprises an array of discrete, steep sided plateaus of a selected size and shape, from which discrete particles of a corresponding shape and size are releasable usually by means of an intermediate release layer coating on the plateaus. The process is readily scalable for high volume production and permits monomodal or multimodal particle size distributions. Such particles may be used as specialised pigments in the security, anti-counterfeiting, defence and cosmetics industries. 1. A method of directly depositing discrete flake particles of a controlled size and shape comprising providing a textured substrate comprising an array of discrete , steep-sided exposed plateaus of a selected size and shape , and depositing a film forming material over the entire array such that it forms discrete , releasable flake particles of a corresponding size and shape on the plateaus.2. A method of producing shaped flake particles comprising the steps of: —a) providing a release system comprising a textured substrate comprising a plurality of discrete, steep-sided plateaus of a selected size and shape, and coated with a film of release agent;b) producing a coated intermediate by depositing a film of material on the substrate such that it forms discrete flake particles on the plateaus;c) releasing the discrete flake particles from the coated intermediate.3. A method as claimed in claim 2 , wherein the surface of the textured substrate is formed from an embossed photopolymer.4. A method as claimed in claim 2 , wherein the plateaus are delimited by steep side walls having a depth of at least 2 microns and optionally claim 2 , a relief angle of between 0° and ±25°.5. A method as claimed in claim 2 , wherein at least half of the active area of the substrate comprises raised plateaus ...

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Номер записи: 8
21-03-2013 дата публикации

Titanium alloy complex powder containing ceramic and process for production thereof, consolidated titanium alloy material using this powder and process for production thereof

Номер: US20130071283A1
Автор: Hideo Takatori, Osamu Kano, Satoshi Sugawara
Принадлежит: Toho Titanium Co Ltd

Titanium alloy complex powder is yielded by hydrogenating titanium alloy raw material to generate hydrogenated titanium alloy, grinding and sifting it to obtain hydrogenated titanium alloy powder, adding ceramic powder selected from SiC, TiC, SiO x , TiO x (here, index x is a real number which is in 1≦x≦2) and Al 2 O 3 , and dehydrogenating the mixture of the hydrogenated titanium alloy powder and the ceramic powder. In addition, consolidated titanium alloy material is obtained by CIP process and subsequent HIP process to the titanium alloy complex powder or by HIP process after filling the titanium alloy complex powder into capsule.

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Номер записи: 9
28-03-2013 дата публикации

Fe-GROUP-BASED SOFT MAGNETIC POWDER

Номер: US20130076477A1
Автор: Yasushi Kino
Принадлежит: Sintokogio Ltd

The present invention provides a Fe-group-based soft magnetic powder that is used for the pressed powder magnetic cores for a choke coil, reactor coil, etc., and that has a higher magnetic permeability. At least one selected from Fe, Co, or Ni that is generally used is used as the main component of the Fe-group-based alloy (iron-based alloy) soft magnetic powder. The soft magnetic powder is produced by adding a small amount of Nb (0.05-4 wt %) or V, Ta, Ti, Mo, or W, to the molten metal and by means of an inexpensive method such as the water-atomizing method.

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Номер записи: 10
18-04-2013 дата публикации

POLLUTION-FREE METHOD FOR RECYCLING IRON-BASED GRINDING WASTE

Номер: US20130091987A1
Автор: Li Bin, LIU Bo, PAN Dean, TIAN Jianjun, ZHANG Shengen
Принадлежит: University of Science and Technology Beijing

The invention provides a pollution-free reuse method for iron-based grinding waste, involving the technology of recycling economy, with special reference to the metallurgical industry, iron-based grinding waste green recycling technology. The present invention of the iron grinding waste recycling and reuse methods includes degreasing, heat treatment, sieving, matching, and obtains iron-based alloyed powders, which can be used in SHS lined steel pipe, powder metallurgy structural component, magnetic grinding, thermal spray. More than 95% iron-based alloyed powders can be recycled from wide source of iron-based grinding waste. The invention has the advantage of low cost, no secondary pollution and wide application. 1. A method of pollution-free reuse for iron-based grinding waste , includes degreasing , heat treatment , wiping out and recycling organics , sieving , matching , mixing and obtains iron-based alloyed powders , which can be used in SHS lined steel pipe , powder metallurgy structural component , magnetic grinding , thermal spray. The method comprise the steps of:(1) using surfactant to degrease the oil included in iron-based grinding waste;(2) heat treatment at 200° C. to 800° C. for drying, wiping out and recycling organics, then obtain iron-based alloyed powders;(3) Sieving the iron-based alloyed powders in −40˜+400 mesh;(4) applying the iron-based alloyed powders in SHS lined steel pipe, powder metallurgy structural component, magnetic grinding, or thermal spraying coatings.2. The method of (1) in which said degreasing the oil included in iron-based grinding waste is that the surface active agent is Diocty Sodium Sulfosuccinate and the quantity is 1% to 3% to the iron-based grinding materials.3. The method of (4) in which applying the iron-based alloyed powders in SHS lined steel pipe is that the ratio of iron-based alloyed powders to aluminum powders is between 3:1 and 5:1.4. The method of (4) in which applying the iron-based alloyed powders in powder ...

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Номер записи: 11
25-04-2013 дата публикации

Production Method of Composite Silver Nanoparticle

Номер: US20130098205A1
Автор: Komatsu Teruo
Принадлежит: Applied Nanoparticle Laboratory Corporation

A production method of composite silver nanoparticle including the steps of: arranging at least an alcohol solvent selected from alcohols with a carbon number of 1 to 12 composed of methanol, ethanol, propanol, buthanol, pentanol, hexanol, heptanol, octhanol, nonanol, decanol, undecanol and dodecanol; preparing an alcohol solution by mixing a silver salt into the alcohol solvent added more excessively than the mol number of the silver salt so as to become an excess alcohol solution; heating the excess alcohol solution in a reaction chamber at a generation temperature PT generating an aldehyde for a generation time; forming a silver core through reducing of the silver salt by the alcohol solvent and/or the aldehyde; and forming a composite silver nanoparticle having an organic coating layer originated from the alcohol solvent around the silver core. 113-. (canceled)14. A production method of composite silver nanoparticle comprising the steps of:arranging at least an alcohol solvent selected from alcohols with a carbon number of 1 to 12 composed of methanol, ethanol, propanol, buthanol, pentanol, hexanol, heptanol, octhanol, nonanol, decanol, undecanol and dodecanol,preparing an alcohol solution by mixing a silver salt into said alcohol solvent added more excessively than the mol number of said silver salt so as to become an excess alcohol solution,heating said excess alcohol solution in a reaction chamber at a generation temperature PT generating an aldehyde for a generation time,forming a silver core through reducing of said silver salt by said alcohol solvent and/or said aldehyde, andforming a composite silver nanoparticle having an organic coating layer originated from said alcohol solvent around said silver core.15. The production method of composite silver nanoparticle according to claim 14 , wherein said silver salt is dispersed or dissolved in said alcohol solvent.16. (canceled)173. The production method of composite silver nanoparticle according to claim 14 , ...

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Номер записи: 12
25-04-2013 дата публикации

Deposition System, Method And Materials For Composite Coatings

Номер: US20130098267A1
Автор: Vladimir E. Belashchenko
Принадлежит: Individual

A composite powder for a deposition of a composite coating comprises a nonmetallic component and a metallic component, the metallic component having an amorphous structure or a nanocrystalline structure. The metallic component may include an amorphous metallic alloy. The metallic alloy may include constituents having the amorphous structure. The metallic component may include a combination of the metallic alloy existing in the amorphous state and constituents of the amorphous metallic alloy in the amorphous state. The composite metal-ceramic powders are used for depositing composite coatings on a selected surface. Disclosed are several methods and systems for producing such composite powders. Disclosed are also several methods and systems for depositing composite coatings. Advantageously, the deposited coatings exhibit high corrosion resistance, high wear resistance, and excellent structural properties.

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Номер записи: 13
09-05-2013 дата публикации

Method for Manufacturing Resonance Tube, Resonance Tube, and Filter

Номер: US20130113578A1
Автор: Yanzhao Zhou
Принадлежит: Huawei Technologies Co Ltd

A method for manufacturing a resonance tube includes: mixing powder materials, to form homogeneous powder particles, where the powder materials comprise iron powder with a weight proportion of 50% to 90%, at least one of copper powder and steel powder with a weight proportion of 1% to 30%, and an auxiliary material with a weight proportion of 1% to 20%; pressing and molding the powder particles, to form a resonance tube roughcast; sintering the resonance tube roughcast in a protective atmosphere, to form a resonance tube semi-finished product; and electroplating the resonance tube semi-finished product, to form the resonance tube. In the method, the resonance tube, and the filter according to embodiments of the present invention, the resonance tube is manufactured by using multiple powder materials.

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Номер записи: 14
16-05-2013 дата публикации

Functionally coated non-oxidized particles and methods for making the same.

Номер: US20130118064A1
Автор: Brian R. Van Devener, Jesus Paulo L. Perez, Scott L. Anderson
Принадлежит: University of Utah Research Foundation UURF

Air-stable coated particles, which include an oxidizable core having a coating substantially encompassing the oxidizable core, where the coating comprises a first organic ligand and/or a second organic ligand, are disclosed and described. The coated particles can also be substantially free of an oxide layer, especially oxide layers around the oxidizable core. As such, the coating of organic ligand(s) acts as a protective or passivating coating. The air-stable coated particles can be formed via a particle size-reduction process. An oxidizable particulate can be crushed and contacted with a first organic ligand and subsequently with a second organic ligand. The process conditions are maintained such that an oxide layer is preempted from forming on the oxidizable core. Such materials can be effective as high energy density additives for various fuels, pyrotechnic, ionic liquids, and rocket propellant applications and for biomedical applications.

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Номер записи: 15
06-06-2013 дата публикации

METHOD FOR PRODUCING ALLOY CAST SLAB FOR RARE EARTH SINTERED MAGNET

Номер: US20130142687A1
Автор: Onimura Takuya, Tabata Shinya
Принадлежит: SANTOKU CORPORATION

Provided are alloy flakes for rare earth sintered magnet, which achieve a high rare earth component yield after pulverization with respect to before pulverization and a uniform particle size after pulverization, and a method for producing such alloy at high energy efficiency in an industrial scale. The method includes (A) preparing an alloy melt containing R composed of at least one element selected from rare earth metal elements including Y, B, and the balance M composed of Fe, or of Fe and at least one element selected from transition metal elements other than Fe, Si, and C, (B) rapidly cooling/solidifying the alloy melt to not lower than 700° C. and not higher than 1000° C. by strip casting with a cooling roll, and (C) heating and maintaining, in a particular temperature range, alloy flakes separated from the roll by rapid cooling and solidifying in step (B) before the flakes are cooled to not higher than 500° C., to obtain alloy flakes having a composition of 27.0 to 33.0 mass % R, 0.90 to 1.30 mass % boron, and the balance M. 1. A method for producing alloy flakes for a rare earth sintered magnet , said alloy flakes having a composition of 27.0 to 33.0 mass % R consisting of at least one element selected from the group consisting of rare earth metal elements including yttrium , 0.90 to 1.30 mass % boron , and the balance M consisting of iron , or of iron and at least one element selected from the group consisting of transition metal elements other than iron , silicon , and carbon , said method comprising the steps of:(A) preparing an alloy melt comprising R, boron, and the balance M,(B) rapidly cooling and solidifying said alloy melt by strip casting with a cooling roll down to not lower than 700° C. and not higher than 1000° C., and(C) heating alloy flakes separated from the cooling roll by said rapid cooling and solidifying in step (B), before said alloy flakes are cooled down to not higher than 500° C., wherein said heating in step (C) is effected by ...

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Номер записи: 16
06-06-2013 дата публикации

PROCESS FOR PRODUCTION OF (RARE EARTH)-MG-NI-BASED HYDROGEN STORAGE ALLOY

Номер: US20130142690A1
Автор: Irie Toshio, Otsuki Takayuki
Принадлежит: SANTOKU CORPORATION

A safe and industrially advantageous production method is disclosed for producing a rare earth-Mg—Ni based hydrogen storage alloy which realizes production of a nickel-hydrogen rechargeable battery having excellent cycle characteristics and a large capacity. The method is for producing a rare earth-Mg—Ni based hydrogen storage alloy including element A, Mg, and element B, wherein element A is composed of at least one element R selected from rare earth elements including Sc and Y, and optionally at least one element selected from Zr, Hf, and Ca, and element B is composed of Ni and optionally at least one element selected from elements other than element A and Mg. The method includes first step of mixing an alloy consisting of elements A and B and Mg metal and/or a Mg-containing alloy having a melting point not higher than the melting point of Mg metal, and second step of heat-treating a mixture obtained from first step for 0.5 to 240 hours at a temperature 5 to 250° C. lower than a melting point of the rare earth-Mg—Ni based hydrogen storage alloy to be obtained. 1. A method for producing a rare earth-Mg—Ni based hydrogen storage alloy comprising element A , Mg , and element B , wherein said element A consists of at least one element R selected from rare earth elements including Sc and Y , and optionally at least one element selected from Zr , Hf , and Ca , and said element B consists of Ni and optionally at least one element selected from elements other than element A and Mg , said method comprising:first step of mixing an alloy consisting of elements A and B and Mg metal and/or a Mg-containing alloy having a melting point not higher than the melting point of Mg metal, andsecond step of heat-treating a mixture obtained from said first step for 0.5 to 240 hours at a temperature 5 to 250° C. lower than a melting point of said rare earth-Mg—Ni based hydrogen storage alloy to be obtained.250. The method according to claim 1 , wherein a mean particle diameter (D) of said ...

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Номер записи: 17
04-07-2013 дата публикации

Methods of Producing Microfabricated Particles for Composite Materials

Номер: US20130172509A1
Автор: Cernohous Jeffrey Jacob, Pawloski Adam R.
Принадлежит: Interfacial Solutions IP, LLC

Microfabricated particles are dispersed throughout a matrix to create a composite. The microfabricated particles are engineered to a specific structure and composition to enhance the physical attributes of a composite material. The microfabricated particles are generated by forming a profile extrudate. A profile extrudate is an article of indefinite length that has a cross sectional profile of a desired structure with micro-scale dimensions. Upon or after formation, the profile extrudate may be divided along its length into a plurality of microfabricated particles. 1. A method comprising dividing a profile extrudate into a plurality of microfabricated particles.2. A method according to claim 1 , wherein the profile extrudate is a metal claim 1 , a metal alloy claim 1 , a thermoset polymer claim 1 , a thermoplastic polymer claim 1 , a polymer composite claim 1 , gels claim 1 , glass claim 1 , or ceramic.3. A method according to claim 1 , wherein dividing includes mechanical cutting claim 1 , laser cutting claim 1 , water jet cutting claim 1 , and plasma cutting.4. A method according to claim 1 , wherein the profile extrudate has a cross sectional profile of a tee claim 1 , cross claim 1 , I-beam claim 1 , askew claim 1 , spring claim 1 , two dimensional spring claim 1 , open polygon claim 1 , comb claim 1 , ladder structure claim 1 , branched structure claim 1 , segmented structure claim 1 , interlocking structure claim 1 , filled polygon claim 1 , starburst claim 1 , crescent claim 1 , auxetic structure claim 1 , auxetic network claim 1 , three dimensional crossbar claim 1 , spiral structures claim 1 , and T-headed cross.5. A method according to claim 1 , wherein the microfabricated particle is constructed from one or more materials or includes one or more structures.6. A method according to claim 1 , further comprising conditioning the microfabricated particles.7. A method according to claim 6 , wherein the conditioning includes drying claim 6 , curing claim 6 , ...

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Номер записи: 18
11-07-2013 дата публикации

Decomposer containing iron particles for organohalogen compound and method for producing the same

Номер: US20130175468A1
Автор: Taishi Uehara
Принадлежит: Dowa Eco Systems Co Ltd

A decomposer for an organohalogen compound, containing iron particles comprising iron and iron oxide, wherein the iron particles have a metallic iron content of 15% or more by mass, wherein the metallic iron content is a content of metallic iron in the outermost surface layer of the iron particles to which the ion beam etching has been applied twice under the following etching conditions: degree of vacuum in a chamber: 2.0×10 −2 Pa accelerating voltage of an ion gun: 10 kV emission current: 10 mA etching time: 14 seconds. The decomposer need not contain copper and has the ability to satisfactorily decompose an organohalogen compound. A method for producing the decomposer is also provided.

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Номер записи: 19
11-07-2013 дата публикации

METHOD AND APPARATUS FOR FORMING NANO-PARTICLES

Номер: US20130177664A1
Автор: Carpenter Douglas
Принадлежит: QUANTUMSPHERE, INC.

Nano-scale particles of materials can be produced by vaporizing the material and allowing the material to flow in a non-violently turbulent manner into thermal communication with a cooling fluid, thereby forming small particles of the material that can be in the nano-scale size range. 1. A nano-scale particle generator comprising:a first heating device disposed in the chamber and configured to vaporize a raw material; anda cooling gas source configured to direct a flow of cooling gas into thermal communication with a flow of raw material vapor emanating from the first heating device under substantially free convection.2. The generator according to further comprising a chamber claim 1 , the first heating device being disposed in the chamber.3. The generator according to claim 1 , wherein the cooling gas source is further configured to direct the flow of cooling gas at a speed about the same as a speed of the flow of raw material vapor.4. The generator according to additionally comprising a vacuum device connected to an upper portion of the chamber and configured to draw cooling gas and nano-scale particles of the raw material from the chamber.5. The generator according to claim 1 , wherein at least one of the first heater device and the cooling gas supply are configured to allow the raw material vapor and cooling gas to rise above the first heater device in a substantially laminar flow.6. The generator according to additionally comprising a diffuser disposed at a position below the first heater device.7. The generator according to claim 6 , wherein the diffuser comprises sintered stainless steel.8. The generator according to claim 6 , wherein the diffuser is configured to generate an upward flow of cooling gas being substantially uniform around the first heater device.9. The generator according to claim 1 , wherein the first heater device is configured to allow the raw material to flow claim 1 , in a liquid state claim 1 , substantially evenly over a stationary ...

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Номер записи: 20
18-07-2013 дата публикации

Method of Manufacturing Iron-Based Powder

Номер: US20130180360A1
Автор: Kang Hee Soo, Kim Ha Neul, Kwon Oh-Joon, Lee Eon Sik, Park Sun Jong
Принадлежит:

A method of manufacturing iron-based powder includes providing an iron-based molten steel manufactured through a iron making process and a steelmaking process to a tundish; and performing water atomization over the molten steel discharged through a nozzle connected to the tundish. The iron-based powder is manufactured from the molten steel refined after a molten iron tapped from a iron making process is charged into a converter without a pre-treatment process of the molten iron, thus economically providing the highly clean iron-based powder. 1. A method of manufacturing an iron-based powder , comprising:providing an iron-based molten steel manufactured through an iron making process and a steelmaking process to a tundish; andwater atomizing the molten steel discharged through a nozzle connected to the tundish.2. The method of manufacturing iron-based powder of claim 1 , wherein:in the steelmaking process, a molten iron tapped from the iron making process is charged into a converter to be refined without pre-treatment of the molten iron.3. The method of manufacturing iron-based powder of claim 2 , wherein:a temperature range of the molten iron before being charged into the converter is 1,250° C. to 1,450° C., and a content of sulfur (S) is 0.005 wt % to 0.1 wt %.4. The method of manufacturing iron-based powder of claim 1 , further comprising:adding a sulfur-containing material to the molten steel so that a content of sulfur (S) included in the molten steel before provided to the tundish is 0.1 wt % to 0.2 wt %.5. The method of manufacturing iron-based powder of claim 1 , wherein:in the molten steel refined by the steelmaking process, a content of carbon (C) is 0.001 wt % to 0.1 wt %, and a content of phosphorus (P) is 0.001 wt % to 0.02 wt %.6. The method of manufacturing iron-based powder of claim 1 , further comprising:performing dehydration, drying, and reduction heat treatment over the iron-based powder manufactured by the water atomization.7. The method of ...

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Номер записи: 21
18-07-2013 дата публикации

Soft magnetic powder, granulated powder, dust core, electromagnetic component, and method for producing dust core

Номер: US20130181802A1
Автор: Asako Watanabe, Tomoyuki Ishimine, Tomoyuki Ueno, Toru Maeda
Принадлежит: Sumitomo Electric Industries Ltd

Provided are a soft magnetic powder for obtaining a dust core having a low iron loss, the dust core, and a method for producing a dust core. The present invention relates to a soft magnetic powder including a plurality of soft magnetic particles, each having an insulating layer. The Vickers hardness HV0.1 of a material constituting the soft magnetic particles is 300 or more, and the insulating layer contains Si, O, and at least one of an alkali metal and Mg. As long as the soft magnetic powder has such features, a material having a high electric resistance, such as an iron-based alloy, can be used. The eddy current loss can be reduced, and it is possible to effectively obtain a dust core having a low iron loss.

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Номер записи: 22
18-07-2013 дата публикации

ALUMINUM POWDER METAL ALLOYING METHOD

Номер: US20130183189A1
Автор: Bishop Donald Paul, Cooke Randy William, Donaldson Ian W., Hexemer, JR. Richard L.
Принадлежит: GKN Sinter Metals, LLC

A zirconium-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-zirconium melt in which a zirconium content of the aluminum-zirconium melt is less than 2.0 percent by weight. The aluminum-zirconium melt then powderized to form a zirconium-doped aluminum powder metal. The powderization may occur by, for example, air atomization. 1. A method of making a powder metal for production of a powder metal part , the method comprising:forming an aluminum-zirconium melt in which a zirconium content of the aluminum-zirconium melt is less than 2.0 percent by weight; andpowderizing the aluminum-zirconium melt to form a zirconium-doped aluminum powder metal.2. The method of claim 1 , wherein the step of powderizing includes air atomizing the aluminum-zirconium melt.3. The method of claim 1 , wherein powderizing the aluminum-zirconium melt to form a zirconium-doped aluminum powder metal includes at least one of atomizing with other gases such as argon claim 1 , nitrogen claim 1 , or helium claim 1 , as well as comminution claim 1 , grinding claim 1 , chemical reaction claim 1 , and electrolytic deposition.4. The method of claim 1 , further comprising the step of:forming the powder metal part from the zirconium-doped aluminum powder metal;wherein a quantity of zirconium in the powder metal part is substantially equal to a quantity of zirconium found in the zirconium-doped aluminum powder metal used to form the powder metal part.5. The method of claim 4 , wherein the zirconium-doped aluminum powder metal inhibits distortion of the powder metal part during a sintering process used to form the powder metal part.6. The method of claim 4 , wherein the powder metal part includes zirconium in an amount of less than 2.0 weight percent.7. The method of claim 4 , wherein the zirconium-doped aluminum powder metal is mixed with at least one other powder metal to provide at least one other alloying element thereby ...

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Номер записи: 23
29-08-2013 дата публикации

Lubricant system for use in powder metallurgy

Номер: US20130224060A1
Автор: Francis G. Hanejko, William Tambussi
Принадлежит: Hoeganaes Corp

The present invention is directed to metallurgical powder compositions having improved lubricant properties. These compositions of the invention include at least 90 wt. % of an iron-based metallurgical powder; a Group 1 or Group 2 metal stearate; a first wax having a melting range of between about 80 and 100° C.; a second wax having a melting range of between about 80 and 90° C.; inc phosphate; boric acid; acetic acid; phosphoric acid; and polyvinylpyrrolidone. Methods of compacting the compositions, as well as compacted articles prepared using those methods, are also described.

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Номер записи: 24
03-10-2013 дата публикации

ZINC-BASED ALLOY SHOT

Номер: US20130259737A1
Автор: Hirai Kaoru, Ishikawa Masayuki
Принадлежит:

This invention provides a zinc-based alloy shot having a new formation and it also provides a method of manufacturing it. The zinc-based alloy shot has Cu added, and it is likely to have a relatively high hardness, and it is less likely to corrode (reduce color change) when it functions as a shot. The zinc-based alloy shot of the present invention comprises Cu as the main additive element for increasing the Vickers hardness, etc., and Fe as a co-additive element for increasing the Vickers hardness and for preventing corrosion. It gives a Vickers hardness of 40-150 HV. The chemical composition of the zinc-based alloy shot is usually Cu: 0.1˜13.0%; Fe: 0.0025˜0.25%; Zn: balance; and 1≦Cu/Fe (measured in mass)≦1000. 1. A zinc-based alloy shot comprising Cu as the main additive element for increasing the Vickers hardness , etc. , and Fe as a co-additive element for increasing the Vickers hardness and for preventing corrosion , and having a Vickers hardness of 40-150 HV.2. A zinc-based alloy shot having a chemical composition of Cu: 0.1˜13.0 mass %; Fe: 0.0025˜0.25 mass %; Zn: balance; and 1≦Cu/Fe(measured in mass)≦1000 and having a Vickers hardness of 40-150 HV.3. A zinc-based alloy shot having a chemical composition of Cu: 1.5˜10.0 mass %; Fe: 0.0025˜0.25 mass %; Zn: balance; and 20≦Cu/Fe (measured in mass)≦1000 and having a Vickers hardness of 60-150 HV4. A zinc-based alloy shot having a chemical composition of Cu: 2.0˜5.0 mass %; Fe: 0.03˜0.1 mass %; Zn: balance; and 20≦Cu/Fe (measured in mass)≦100 and having a Vickers hardness of 70-125 HV.54. The zinc-based alloy shot of any of - claims 1 , wherein the average particle diameter of the zinc-based alloy shot is in a range of 0.1-3.5 mm.6. The zinc-based alloy shot of any of to claims 1 , wherein the average particle diameter of the zinc-based alloy shot is in a range of 0.3-2.3 mm.7. The zinc-based alloy shot of any of to claims 1 , wherein the average particle diameter of the zinc-based alloy shot is in a range of 0 ...

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Номер записи: 25
10-10-2013 дата публикации

Magnet Recycling

Номер: US20130263699A1
Автор: Allan Walton, Andrew Williams, Ivor Rex Harris, John D. Speight
Принадлежит: UNIVERSITY OF BIRMINGHAM

The present invention discloses a method for recovering rare earth particulate material from an assembly comprising a rare earth magnet and comprises the steps of exposing the assembly to hydrogen gas to effect hydrogen decrepitation of the rare earth magnet to produce a rare earth particulate material, and separating the rare earth particulate material from the rest of the assembly. The invention also resides in an apparatus for separating rare earth particulate material from an assembly comprising a rare earth magnet. The apparatus comprises a reaction vessel having an opening which can be closed to form a gas-tight seal, a separator for separating the rare earth particulate material from the assembly, and a collector for collecting the rare earth particulate material. The reaction vessel is connected to a vacuum pump and a gas control system, and the gas control system controls the supply of hydrogen gas to the reaction vessel.

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Номер записи: 26
17-10-2013 дата публикации

Magnetic body

Номер: US20130271249A1
Автор: Kenichi Suzuki, Yoshinori Fujikawa
Принадлежит: TDK Corp

A magnetic body which can reversibly change its magnetic force with a small external magnetic field while having a high residual magnetic flux density is provided. The magnetic body of the present invention has a residual magnetic flux density Br of at least 11 kG and a coercive force HcJ of 5 kOe or less, while an external magnetic field required for the residual magnetic flux density Br to become 0 is 1.10 HcJ or less.

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Номер записи: 27
14-11-2013 дата публикации

Method and apparatus for forming nano-particles

Номер: US20130302455A1
Автор: Carpenter Ray Douglas
Принадлежит:

Nano-scale particles of materials can be produced by vaporizing material and allowing the material to flow in a non-violently turbulent manner into thermal communication with a cooling fluid, thereby forming small particles of the material that can be in the nano-scale size range. A raw material feeder can be configured to feed raw material toward a heater which vaporizes the raw material. The feeder can include a metering device for controlling the flow of raw material toward the heater. A gas source can also be used to cause gas to flow through a portion of the raw material feeder along with the raw material. 1. A nano-scale particle generator comprising:a first heating device configured to vaporize raw material; anda raw material feeder configured to feed a raw material into contact with the first heating device and to feed a gas along with the raw material through the raw material feeder.2. The generator according to claim 1 , wherein the raw material feeder device comprises a conduit configured to guide the raw material and the gas toward the first heating device.3. The generator according to claim 1 , additionally comprising a chamber claim 1 , the first heater being disposed in the chamber claim 1 , the raw material feeder being configured to feed the raw material from a location outside of the chamber to a location inside the chamber.4. A nano-scale particle generator comprising:a first heating device configured to vaporize raw material; andmeans for feeding granular raw material into thermal communication with the first heating device.5. A nano-scale particle generator comprising:a first heating device configured to vaporize raw material; andmeans for feeding raw material and a gas together toward the first heating device. This application is a continuation of U.S. patent application Ser. No. 12/924,136, filed on Sep. 21, 2010, which is a continuation of U.S. patent application Ser. No. 11/591,787, filed on Nov. 2, 2006, each of which is incorporated herein ...

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Номер записи: 28
21-11-2013 дата публикации

ALUMINUM ALLOY POWDER METAL WITH TRANSITION ELEMENTS

Номер: US20130309123A1
Автор: Bishop Donald Paul, Cooke Randy William, Donaldson Ian W., Hexemer, JR. Richard L.
Принадлежит: GKN Sinter Metals, LLC

A transition element-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-transition element melt in which a transition element content of the aluminum-transition element melt is less than 6 percent by weight. The aluminum-transition element melt then powderized to form a transition element-doped aluminum powder metal. The powderization may occur by, for example, air atomization. 1. A method of making a powder metal for production of a powder metal part , the method comprising:forming an aluminum-transition element melt in which a content of a transition element in the aluminum-transition element melt is less than 6 percent by weight; andpowderizing the aluminum-transition element melt to form a transition element-doped aluminum powder metal.2. The method of claim 1 , wherein the step of powderizing includes air atomizing the aluminum-transition element melt.3. The method of claim 1 , wherein powderizing the aluminum-transition element melt to form a transition element-doped aluminum powder metal includes at least one of atomizing with other gases such as argon claim 1 , nitrogen claim 1 , or helium claim 1 , as well as comminution claim 1 , grinding claim 1 , chemical reaction claim 1 , and electrolytic deposition.4. The method of claim 1 , further comprising the step of:forming the powder metal part from the transition element-doped aluminum powder metal;wherein a concentration of the transition element in the powder metal part is substantially equal to a concentration of the transition element found in the transition element-doped aluminum powder metal used to form the powder metal part.5. The method of claim 4 , wherein the powder metal part includes the transition element in an amount of less than 2 weight percent.6. The method of claim 4 , wherein the transition element-doped aluminum powder metal is mixed with at least one other powder metal to provide at least one other alloying ...

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Номер записи: 29
28-11-2013 дата публикации

POWDER METAL COMPOSITIONS FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS AND METHOD OF PRODUCING SAME

Номер: US20130315772A1
Автор: "LEsperance Gilles", Beaulieu Philippe, Christopherson, Farthing Leslie John, JR. Denis B., Schoenwetter Todd
Принадлежит: FEDERAL-MOGUL CORPORATION

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. 1. A powder metal composition , comprising: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, based on the total weight of the powder metal composition.2. The powder metal composition of including 3.5 to 4.0 wt. % carbon claim 1 , 11.0 to 15.0 wt. % chromium claim 1 , 1.5 to 3.5 wt. % tungsten claim 1 , 4.0 to 6.5 wt. % vanadium claim 1 , 1.0 to 3.0 wt. % molybdenum claim 1 , not greater than 0.3 wt. % oxygen claim 1 , and 50.0 to 81.5 wt % iron.3. The powder metal composition of consisting of 3.8 wt. % carbon claim 2 , 13.0 wt. % chromium claim 2 , 2.5 wt. % tungsten claim 2 , 6.0 wt. % vanadium claim 2 , 1.5 wt. % molybdenum claim 2 , 0.2 wt. % oxygen claim 2 , 70.0 to 80.0 wt. % iron claim 2 , and impurities in an amount not greater than 2.0 wt. %.4. The powder metal composition of including at least one of cobalt claim 1 , niobium claim 1 , titanium claim 1 , manganese claim 1 , sulfur claim 1 , silicon claim 1 , phosphorous claim 1 , zirconium claim 1 , and tantalum.5. The powder metal material of including metal carbides in an amount of at least 15.0 vol. % claim 1 , based ...

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Номер записи: 30
12-12-2013 дата публикации

METHOD FOR THE DRY GRANULATION OF NANOMETRIC PARTICLES

Номер: US20130330557A1
Автор: Maskrot Hicham
Принадлежит: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVE

A method of forming micrometric or millimetric sized granules by the agglomeration of nanometric sized particles, comprising the addition of a set of nanometric sized particles into a container having an inside wall surface with a circular or approximately circular section and setting the set of particles in motion along said inside wall surface by rotating the container about a rotation axis passing through said container. The setting in motion of the particles is done in a dry state and the container is rotated continuously at constant speed for several consecutive hours. 1. Method of forming micrometric or millimetric sized inorganic granules by agglomeration of nanometric sized inorganic particles , the method comprising addition of a set of nanometric sized inorganic particles into a container having an inside wall surface with a circular or approximately circular section and setting the set of particles in motion along said inside wall surface by rotating the container about a rotation axis passing through said container , wherein the setting in motion of the particles is done in a dry state and the container is rotated continuously at constant speed for several consecutive hours.2. Method of forming granules according to claim 1 , wherein the rotation axis of the container is located at the centre of the circular or approximately circular section of the inside wall surface.3. Method of forming granules according to claim 1 , wherein the container rotation speed is between 25 and 40% of a critical speed corresponding to a rotation speed at which the set of particles is no longer made to move along the inside wall surface claim 1 , although the container is still rotating.4. Method of forming granules according to claim 1 , wherein the container is a closed container.5. Method of forming granules according to claim 1 , wherein the rotation axis of the container is inclined from horizontal.6. Method of forming granules according to claim 1 , wherein inside ...

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Номер записи: 31
30-01-2014 дата публикации

REFINING OF PLATINUM GROUP METALS CONCENTRATES

Номер: US20140026713A1
Автор: Bezuidenhout Gert Adrian, Eksteen Jacobus Johannes
Принадлежит: WESTERN PLATINUM LTD

This invention relates to a process in which a Platinum Group Metal (PGM)-rich residue from a BMR (Base Metals Refinery) process is subjected to a high temperature roast to remove contaminants, typically volatile elements (for example Se, Te, As, S, Bi, Os) and obtain a roast product. The roast product is smelted with a flux to form a slag phase and an alloy phase, and to vaporize sulphates and heavy metals like Pb, Te, and remove stable oxide compounds such as Si02 and oxides of Fe, Ni, Co, Cu, Cr, Te, Bi to the slag phase. The alloy and the slag phase are separated, and the alloy phase is then melted and atomized with a gas or liquid atomization process to form fine alloy particles that can be dissolved in water and treated in a hydrometallurgical PMR (Precious Metals Refinery) process. 1. A process in which a Platinum Group Metal (PGM)-rich residue , wherein greater than 40% by mass of Precious Metals in the residue are Platinum Group Metals (PGMs) , containing less than 10% by weight base metals , is:subjected to a high temperature roast which includes an oxidative roast wherein the roasting temperature is above 500° C. and below 1000° C. to remove contaminants including Se, Te, As, S, Bi, Os and obtain a roast product; andthe roast product is smelted with a flux at a temperature of 1300° C. to 1600° C. to form a slag phase and an alloy phase, which are separated.2. The process as claimed in claim 1 , wherein the roasting temperature is from 600° C. to below 900° C.3. The process as claimed in claim 2 , wherein the roasting temperature is from 700° C. to 850° C.4. The process as claimed in claim 1 , wherein an oxidation agent is added to the oxidation roast.5. The process as claimed in claim 4 , wherein the oxidation agent is air.6. The process as claimed in claim 5 , wherein from 100 to 150 g of air is added per 100 g residue.7. The process as claimed in claim 6 , wherein from 130 to 150 g of air is added per 100 g residue.8. The process as claimed in claim 1 , ...

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Номер записи: 32
13-02-2014 дата публикации

Compositional variations of tungsten tetraboride with transition metals and light elements

Номер: US20140041313A1
Автор: Andrew T. LECH, Miao Xie, Reza Mohammadi, Richard B. Kaner, Sarah H. Tolbert
Принадлежит: UNIVERSITY OF CALIFORNIA

A composition includes tungsten (W); at least one element selected form the group of elements consisting of boron (B), beryllium (Be) and silicon (Si); and at least one element selected from the group of elements consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), ruthenium (Ru), hafnium (Hf), tantalum (Ta), rhenium (Re), osmium (Os), iridium (Ir), lithium (Li) and aluminum (Al). The composition satisfies the formula W 1-x M x X y wherein X is one of B, Be and Si; M is at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Hf, Ta, Re, Os, Ir, Li and Al; x is at least 0.001 and less than 0.999; and y is at least 4.0. A tool is made from or coated with this composition.

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Номер записи: 33
27-03-2014 дата публикации

PROCESS FOR PRODUCING A LEAD-FREE SLIDING BEARING MATERIAL

Номер: US20140086784A1
Автор: Meister Daniel, Schmitt Holger
Принадлежит:

In a process for producing a lead-free sliding bearing material, a material which is based on copper and contains iron and phosphorous is atomized to form a powder. 1. A process for producing a lead-free sliding bearing material , in which a material which is based on copper and contains iron and phosphorous is atomized to form a powder , wherein after the atomizing a total of at least 0.1% preferably at least 0.2% of at least one of the elements aluminium , magnesium , silicon , titanium , zircon , chrome , manganese , zinc , nickel and molybdenum is added as powder , mixed with the material and milled.2. The process according to claim 1 , wherein the material contains 2.1% to 2.6% of iron and/or 0.015% to 0.15% of phosphorous.33. The process according to claim 1 , wherein the material is mixed with a total of a maximum % claim 1 , of the elements aluminium claim 1 , magnesium claim 1 , silicon claim 1 , titanium claim 1 , zircon claim 1 , chrome claim 1 , manganese claim 1 , zinc claim 1 , nickel and molybdenum.4. The process according to claim 1 , wherein the material is furthermore mixed with a solid lubricant.5. The process according to claim 1 , wherein the material is furthermore mixed with hard particles.6. The process according to claim 1 , wherein the material is furthermore mixed with at least one chip-breaking element selected from tellurium claim 1 , bismuth and sulfur.7. The process according to claim 1 , wherein the mixing is carried out in a ball mill.8. The process according to claim 1 , wherein the material has at least 5% particles having a size of <μm.9. The process according to claim 1 , wherein the sliding bearing material is subsequently further processed by sintering claim 1 , casting and/or roll bonding.10. The process according to claim 3 , wherein there is a minimum of said elements of 1%.11. The process of claim 4 , wherein the solid lubricant is selected from at least one of BN or C.12. The process of claim 5 , wherein the hard particles ...

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Номер записи: 34
03-04-2014 дата публикации

PRODUCTION OF ZINC DUST

Номер: US20140093600A1
Автор: Hanneman Michael, Heslop Roy William
Принадлежит:

A method of production of Zinc dust which includes melting Zinc products in a melting furnace on a semi-continuous basis, transferring at least a part of the molten Zinc products to a vaporizing furnace, vaporizing the molten Zinc in the vaporizing furnace into Zinc vapour on a substantially continuous basis, transferring Zinc vapour from the vaporizing furnace to a condenser, and condensing the Zinc vapour to form Zinc dust. 1. A Zinc dust production plant , comprising:a vertical crucible melting furnace into which Zinc products are receivable;a vertical crucible vaporizing furnace into which molten Zinc products from the vertical crucible melting furnace are receivable via a dip tube with a top end of the dip tube being in flow communication with molten material transport means and a bottom end of the dip tube opening into a lower portion of a vaporizing crucible; anda condenser in fluid flow communication with the vaporizing furnace for receiving Zinc vapour into the condenser, the condenser operable to condense the vaporized Zinc into Zinc dust.2. The Zinc dust production plant of claim 1 , further comprising molten Zinc material transport means in the form of a tundish and launder combination for transporting heated liquid material from a melting crucible claim 1 , forming part of the vertical crucible melting furnace claim 1 , to the vertical crucible vaporizing furnace.3. The Zinc dust production plant of claim 1 , wherein the vertical crucible melting furnace includes a refractory lining at least partially surrounding the melting crucible.4. The Zinc dust production plant of claim 2 , wherein the vertical crucible melting furnace includes a gas-fired burner in heat flow communication with an outside of the melting crucible.5. The Zinc dust production plant of claim 2 , wherein at least a portion of a melting crucible body is enclosed by the refractory lining claim 2 , with the gas-fired burner being arranged in a chamber defined between the refractory lining ...

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Номер записи: 35
03-01-2019 дата публикации

BIOCIDAL METAL PARTICLES, AND METHODS FOR PRODUCTION THEREOF

Номер: US20190000088A1
Автор: PORTMAN Thomas
Принадлежит:

The present disclosure provides biocidal metal particles, and methods for production thereof. The method of producing the biocidal materials includes thermally spraying, into a collection system, a feed material having a metal mixture having from about 2% to about 96 wt. % Cu, about 2 to about 96 wt. % Zn, and about 1 to about 40 wt. % Ni, under conditions to give particles with a size in a range from about 1 to about 50 microns. The metal particles are collected and are characterized in that they have an amorphous solid structure and exhibit enhanced biocidal properties. 1. A method of producing biocidal metal particles , comprising:thermally spraying, into a collection system, a feed material having a metal mixture comprising about 2% to about 96 wt. % Cu, about 2 to about 96 wt. % Zn, and about 1 to about 40 wt. % Ni, under conditions to give particles with a size in a range from about 1 to about 50 microns; andcollecting the sprayed metal particles, and wherein said collected sprayed metal particles are characterized in that they have an amorphous solid structure and exhibit biocidal properties.2. The method according to claim 1 , wherein the feed material has a metal mixture comprising about 62.5 to about 66 wt. % Cu claim 1 , about 16 to about 18 wt. % Zn claim 1 , and about 17 to about 19 wt. % Ni.3. The method according to claim 1 , wherein the feed material has a metal mixture comprising about 65 wt. % Cu claim 1 , 17 wt. % Zn claim 1 , and 18 wt. % Ni.4. The method according to claim 3 , including trace amounts of Iron (Fe) and Manganese (Mn) of up to about 0.5% of each.5. The method according to claim 3 , wherein the produced metal particles are characterized by having a composition as measured by EDX to be about 25.49 wt. % Cu claim 3 , about 67.86 wt. % Zn claim 3 , and about 6.66 wt. % Ni.6. The method according to claim 3 , wherein the produced metal particles are characterized by having a composition claim 3 , as measured by elemental analysis claim ...

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Номер записи: 36
07-01-2016 дата публикации

METHOD FOR PRODUCING SPRAY POWDERS CONTAINING CHROMIUM NITRIDE

Номер: US20160001368A1
Автор: BRUENING Bernhard, Gries Benno
Принадлежит:

A process for producing a sintered spraying powder comprising chromium nitride includes producing a powder mixture comprising a first powder and a second powder, and sintering the powder mixture to the sintered spraying powder at a nitrogen partial pressure of >1 bar so as to maintain or increase a chemically bound nitrogen in the sintered spraying powder compared to a chemically bound nitrogen in the first powder mixture. The first powder comprises at least one constituent selected from the group consisting of Cr, CrN and CrN. The second powder comprises at least one constituent selected from the group consisting of nickel, cobalt, nickel alloys, cobalt alloys and iron alloys. 119-. (canceled)20: A process for producing a sintered spraying powder comprising chromium nitride , the process comprising: [{'sub': '2', 'a first powder comprising at least one constituent selected from the group consisting of Cr, CrN and CrN, and'}, 'a second powder comprising at least one constituent selected from the group consisting of nickel, cobalt, nickel alloys, cobalt alloys and iron alloys; and, 'producing a powder mixture comprisingsintering the powder mixture to the sintered spraying powder at a nitrogen partial pressure of >1 bar so as to maintain or increase a chemically bound nitrogen in the sintered spraying powder compared to a chemically bound nitrogen in the first powder mixture.21: The process as recited in claim 20 , wherein the powder mixture comprises at least one of CrN and CrN.22: The process as recited in claim 20 , wherein the powder mixture comprises at least one of a nickel powder and a NiCr alloy powder.23: The process as recited in claim 22 , wherein the at least one of a nickel powder and a NiCr alloy powder is a cobalt base alloy claim 22 , a nickel base alloy claim 22 , or an iron base alloy.24: The process as recited in claim 23 , wherein the cobalt base alloy claim 23 , the nickel base alloy claim 23 , or the iron base alloy comprises at least one ...

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Номер записи: 37
07-01-2016 дата публикации

METHOD FOR PRODUCING POWDER METAL COMPOSITIONS FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS AND METHOD OF PRODUCING SAME

Номер: US20160001369A1
Автор: "LEsperance Gilles", Beaulieu Philippe, Christopherson, Farthing Leslie John, JR. Denis B., Schoenwetter Todd
Принадлежит:

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. 1. A method of forming a powder metal composition , comprising the steps of:providing 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, based on the total weight of the melted iron based alloy; andatomizing the melted iron based alloy to provide atomized droplets of the iron based alloy.2. The method of including grinding the atomized droplets to remove oxide skin from the atomized droplets.3. The method of claim 1 , wherein the atomizing step includes forming metal carbides in an amount of at least 15 vol. % claim 1 , based on the total volume of the melted iron based alloy.4. The method of claim 3 , wherein the metal carbides are selected from the group consisting of: M8C7 claim 3 , M7C3 claim 3 , M6C claim 3 , wherein M is at least one metal atom and C is carbon.5. The method of claim 4 , wherein M8C7 is (V63Fe37)8C7; M7C3 is selected from the group consisting of: (Cr34Fe66)7C3 claim 4 , Cr3.5Fe3.5C3 claim 4 , and Cr4Fe3C3; and M6C is selected from the group consisting of: Mo3Fe3C claim 4 , Mo2Fe4C claim 4 , W3Fe3C claim 4 , and W2Fe4C.6. ...

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Номер записи: 38
05-01-2017 дата публикации

FLAKY METAL PIGMENT AND METHOD OF MANUFACTURING FLAKY METAL PIGMENT

Номер: US20170001242A1
Автор: Nakao Takayuki
Принадлежит: TOYO ALUMINIUM KABUSHIKI KAISHA

An object of the present invention is to provide a flaky metal pigment that is reduced in particle size. According to the flaky metal pigment of the present invention, in the case where the flaky metal pigment is measured by a flow-type particle image analyzer, P50 showing a 50% cumulative frequency of a diameter equivalent to an area circle in a number distribution is less than 0.500 μm. 18-. (canceled)9. A flaky metal pigment ,said flaky metal pigment being made of aluminum, andin a case where said flaky metal pigment is measured by a flow-type particle image analyzer, P50 showing a 50% cumulative frequency of a diameter equivalent to an area circle in a number distribution being less than 0.500 μm.10. The flaky metal pigment according to claim 9 , whereinin the case where said flaky metal pigment is measured by the flow-type particle image analyzer, Pmax showing a maximum particle diameter of the diameter equivalent to an area circle in the number distribution is 5.000 μm or less.11. The flaky metal pigment according to claim 9 , wherein P50/t showing a ratio of an average thickness t of each said flaky metal pigment to said P50 is 1 or more and 100 or less.12. A method of manufacturing a flaky metal pigment claim 9 , said method comprising the steps of:preparing slurry including a flake made of metal; andfine-graining said flake by jetting said slurry at high pressure.13. The method of manufacturing a flaky metal pigment according to claim 12 , whereinsaid fine-graining step includes the steps of:jetting said slurry from a jetting unit into a reaction chamber at a pressure of 70 MPa or more; andcausing said flake included in said jetted slurry to collide with a hard body disposed within said reaction chamber.14. The method of manufacturing a flaky metal pigment according to claim 12 , whereinsaid fine-graining step includes the steps of:jetting said slurry from a jetting unit into a reaction chamber at a pressure of 70 MPa or more; andcausing said slurries ...

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Номер записи: 39
04-01-2018 дата публикации

IRON NITRIDE POWDER WITH ANISOTROPIC SHAPE

Номер: US20180001385A1
Автор: Jiang Yanfeng, Wang Jian-Ping
Принадлежит:

Techniques are disclosed for milling an iron-containing raw material in the presence of a nitrogen source to generate anisotropically shaped particles that include iron nitride and have an aspect ratio of at least 1.4. Techniques for nitridizing an anisotropic particle including iron, and annealing an anisotropic particle including iron nitride to form at least one a″-Fe16N2 phase domain within the anisotropic particle including iron nitride also are disclosed. In addition, techniques for aligning and joining anisotropic particles to form a bulk material including iron nitride, such as a bulk permanent magnet including at least one a″-Fe16N2 phase domain, are described. Milling apparatuses utilizing elongated bars, an electric field, and a magnetic field also are disclosed. 1. A method comprising:milling an iron-containing raw material in the presence of a nitrogen source to generate a powder including a plurality of anisotropic particles,wherein at least some particles of the plurality of anisotropic particles include iron nitride,wherein at least some particles of the plurality of anisotropic particles have an aspect ratio of at least 1.4,wherein the aspect ratio for an anisotropic particle of the plurality of anisotropic particles comprises the ratio of the length of a longest dimension to the length of a shortest dimension of the anisotropic particle, andwherein the longest dimension and the shortest dimension are substantially orthogonal.2. The method of claim 1 , wherein milling the iron-containing raw material comprises milling the iron-containing raw material for between about 20 hours and about 65 hours in a bin of a rolling mode milling apparatus claim 1 , a stirring mode milling apparatus claim 1 , or a vibration mode milling apparatus.3. The method of claim 1 , wherein milling the iron-containing raw material comprises milling the iron-containing raw material under a pressure of between about 0.1 gigapascals (GPa) and about 20 GPa in a bin of a rolling ...

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Номер записи: 40
04-01-2018 дата публикации

METHOD AND APPARATUS FOR PRODUCING IRON POWDER

Номер: US20180001386A1
Автор: LYU Hyun Gon, YUN Joon Chul
Принадлежит: HYUNDAI MOTOR COMPANY

A method of producing iron powder by a water atomization process may include preparing a molten metal in a tundish, discharging the molten metal in a free-falling manner by opening an orifice formed on a bottom of the tundish, and producing iron powder by spraying water onto the free-falling molten metal using a pair of water spraying nozzles, an angle formed by the water spraying nozzles being at least 45°. 1. A method of producing iron powder by a water atomization process , comprising:preparing a molten metal in a tundish;discharging the molten metal in a free-falling manner by opening an orifice formed on a bottom of the tundish; andproducing the iron powder by spraying water onto the free-falling molten metal using a pair of water spraying nozzles, an angle formed by the water spraying nozzles being at least 45°.2. The method according to claim 1 , further comprising:prior to the discharging the molten metal, adjusting a distance between the water spraying nozzles by adjusting positions of the water spraying nozzles so an atomization angle formed by streams of water sprayed from the water spraying nozzles ranges from 45 to 50°.3. The method according to claim 2 , wherein claim 2 , in the adjusting the distance between the water spraying nozzles claim 2 , the atomization angle is adjusted by adjusting the distance between the water spraying nozzles in a state in which a collision point of the water sprayed from each of the water spraying nozzles with the falling molten metal is fixed.4. The method according to claim 3 , wherein claim 3 , in the producing the iron powder claim 3 , an atomization pressure of the water sprayed from each of the water spraying nozzles is adjusted depending on the distance between the water spraying nozzles.6. An apparatus for producing iron powder by a water atomization process claim 3 , the apparatus comprising:a pair of nozzles disposed in a lower portion of a tundish to face each other with a free-falling molten metal interposed ...

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Номер записи: 41
04-01-2018 дата публикации

METHOD FOR PRODUCING POWDER METAL COMPOSITIONS FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS

Номер: US20180001387A1
Автор: "LEsperance Gilles", Beaulieu Philippe, Christopherson, Farthing Leslie John, JR. Denis B., Schoenwetter Todd
Принадлежит:

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. 1. A method of forming a powder metal composition , comprising the steps of:providing 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, based on the total weight of the melted iron based alloy; andatomizing the melted iron based alloy to provide atomized droplets of the iron based alloy.2. The method of including grinding the atomized droplets to remove oxide skin from the atomized droplets.3. The method of claim 1 , wherein the atomizing step includes forming metal carbides in an amount of at least 15 vol. % claim 1 , based on the total volume of the melted iron based alloy.4. The method of claim 3 , wherein the metal carbides are selected from the group consisting of: M8C7 claim 3 , M7C3 claim 3 , M6C claim 3 , wherein M is at least one metal atom and C is carbon.5. The method of claim 4 , wherein M8C7 is (V63Fe37)8C7; M7C3 is selected from the group consisting of: (Cr34Fe66)7C3 claim 4 , Cr3.5Fe3.5C3 claim 4 , and Cr4Fe3C3; and M6C is selected from the group consisting of: Mo3Fe3C claim 4 , Mo2Fe4C claim 4 , W3Fe3C claim 4 , and W2Fe4C.6. ...

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Номер записи: 42
04-01-2018 дата публикации

CARBON-COATED METAL POWDER, CONDUCTIVE PASTE CONTAINING CARBON-COATED METAL POWDER AND MULTILAYER ELECTRONIC COMPONENT USING SAME, AND METHOD FOR MANUFACTURING CARBON-COATED METAL POWDER

Номер: US20180001388A9
Автор: AKIMOTO Yuji, Iwasaki Mineto, Matsuo Akiko, TANAKA Hideki
Принадлежит:

This invention aims at providing a carbon-coated metal powder having few impurities, a narrower particle size distribution, and sintering properties particularly suitable as a conductive powder of a conductive paste for forming internal conductors in a ceramic multilayer electronic component obtained by co-firing multilayered ceramic sheets and internal conductor layers; a conductive paste containing the carbon-coated metal powder; a multilayer electronic component using the conductive paste; and a method for manufacturing the carbon-coated metal powder. The carbon-coated metal powder has specific properties in TMA or ESCA measurements. The carbon-coated metal powder can be obtained by melting and vaporizing a metallic raw material in a reaction vessel, conveying the generated metal vapor into a cooling tube and rapidly cooling the metal vapor by endothermically decomposing a carbon source supplied into the cooling tube, and forming a carbon coating film on metal nuclei surfaces in parallel with generation of the metal nuclei. 2. The carbon-coated metal powder according to claim 1 , wherein when the temperature width of 200° C. giving the Xis taken as not less than T° C. to not more than (T+200)° C. claim 1 , T° C.>400° C.3. The carbon-coated metal powder according to claim 1 , wherein X′ represented by X′ (%)=(X′/X)×100 is 30 or less claim 1 , when X′is a maximum shrinkage percentage in a range of from a room temperature to 400° C.4. The carbon-coated metal powder according to claim 1 , wherein the metal powder includes at least one of nickel and copper.5. A carbon-coated metal powder comprising a nickel-based powder consisting essentially of nickel only or comprising nickel as a main component claim 1 , and a carbon coating film that covers the nickel-based powder claim 1 , wherein{'sup': '2', 'an oxygen content in a weight proportion of an oxygen component to the carbon-coated metal powder of a unit weight is 1500 ppm or less per specific surface area of 1 m/g of ...

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Номер записи: 43
02-01-2020 дата публикации

METHOD FOR PREPARING NEODYMIUM-IRON-BORON PERMANENT MAGNETIC MATERIAL

Номер: US20200001360A1
Автор: Bai Yang, Chen Peixin, Cheng Yu, Li Hui, Li Jingya, LIU Jixiang, Liu Shufeng, Liu Xiaoyu, Lou Shupu, Lu Fei, Sun Caina, Sun Liangcheng, Wang Feng, Wang Yu, Xia Feng, YANG Fan, Yang Zhanfeng, ZHANG ZHIHONG, Zheng Tiancang
Принадлежит:

A method for preparing a NdFeB permanent magnetic material may include providing a covered NdFeB magnetic powder by depositing heavy rare earth particles or high-melting particles onto a NdFeB magnetic powder by physical vapor deposition; and performing orientation molding and sintering on the covered NdFeB magnetic powder to provide the NdFeB permanent magnetic material. 110.-. (canceled)11. A method for preparing a NdFeB permanent magnetic material , the method comprising:preparing a NdFeB magnetic material;depositing heavy rare earth particles or high-melting particles onto the NdFeB magnetic material by physical vapor deposition to provide a covered NdFeB magnetic material; andperforming orientation molding and sintering on the covered NdFeB magnetic material to provide the NdFeB permanent magnetic material.12. The method according to claim 11 , further comprising first preparing the NdFeB magnetic material as a coarse powder with a particle size of 10 μm-2 mm claim 11 , andsubsequently refining the coarse powder into a fine powder after the physical vapor deposition.13. The method according to claim 11 , wherein the NdFeB magnetic material is prepared from a NdFeB magnet.14. The method according to claim 11 , wherein the preparation of the NdFeB magnetic material comprises mixing ingredients claim 11 , and smelting and strip casting the resulting mixture to obtain NdFeB sheets claim 11 , and wherein the depositing step comprises depositing heavy rare earth particles or high-melting particles onto the NdFeB sheets in an inert atmosphere by the physical vapor deposition method to form a covered NdFeB sheet claim 11 , the method further comprising crushing and milling the covered NdFeB sheet into a powder.15. The method according to claim 11 , wherein the depositing step further comprises selecting a desired high-melting target material claim 11 , placing the NdFeB magnetic material and particles of the high-melting target material in a physical vapor deposition ...

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Номер записи: 44
02-01-2020 дата публикации

Method for manufacturing soft magnetic iron powder

Номер: US20200001369A1
Автор: Makoto Nakaseko, Mineo Muraki, Naomichi Nakamura, Takuya TAKASHITA
Принадлежит: JFE Steel Corp

A method for manufacturing soft magnetic iron powder, the method including ejecting high-pressure water to collide with a molten metal stream falling vertically downward, breaking up the molten metal stream into metal powder, and cooling the metal powder, in which, when a falling rate of the molten metal stream per unit time is defined as Qm (kg/min) and an ejection rate of high-pressure water per unit time is defined as Qaq (kg/min), a mass ratio (Qaq/Qm) is 50 or more, and a total content of ferrous constituents (Fe, Ni, and Co) is 76 at % or more.

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Номер записи: 45
02-01-2020 дата публикации

METHOD FOR TREATING RAW-MATERIAL POWDER, APPARATUS FOR TREATING RAW-MATERIAL POWDER, AND METHOD FOR PRODUCING OBJECT

Номер: US20200001399A1
Автор: Kamachi Koh, Kitani Koji
Принадлежит:

A method for treating a raw-material powder includes forming a layer of the raw-material powder and removing oxide film formed on a surface of the raw-material powder from which the layer has been formed. 1. An apparatus for treating a raw-material powder in an object production system that uses powder bed fusion , the apparatus comprising:an evacuable enclosure;atmosphere generator configured to generate, in the enclosure, an atmosphere containing hydrogen and/or an inert element;a powder container located in the enclosure and electrically insulated from the enclosure;a forming unit configured to form a layer of the raw-material powder in the powder container; andan energizing unit configured to generate plasma in said atmosphere by applying an AC voltage to the layer formed by the forming unit, wherein the energizing unit has an electrode arranged to come into contact with the layer and apply the AC voltage to the layer in the powder container.2. The apparatus according to for treating a raw-material powder claim 1 , wherein a surface of the powder container that comes into contact with the layer is insulating.3. The apparatus according to for treating a raw-material powder claim 1 , wherein the energizing unit capable of superposing the AC voltage with a negative DC voltage.4. The apparatus according to for treating a raw-material powder claim 1 , wherein the apparatus further comprising a heater claim 1 , as a component of the powder container claim 1 , arranged to heat the layer.5. An object production system that uses powder bed fusion claim 1 , the object production system comprising:an apparatus for treating a raw-material powder; an evacuable enclosure;', 'atmosphere generator configured to generate, in the enclosure, an atmosphere containing hydrogen and/or an inert element;', 'a powder container located in the enclosure and electrically insulated from the enclosure;', 'a forming unit configured to form a layer of the raw-material powder in the powder ...

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Номер записи: 46
03-01-2019 дата публикации

Metal powder atomization manufacturing processes

Номер: US20190001416A1
Автор: Frederic Larouche, Frederic Marion, Matthieu BALMAYER
Принадлежит: AP&C Advanced Powders and Coatings Inc

There are provided reactive metal powder atomization manufacturing processes. For example, such processes include providing a heated metal source and contact the heated metal source with at least one additive gas while carrying out the atomization process. Such processes provide raw reactive metal powder having improved flowability. The at least one additive gas can be mixed together with an atomization gas to obtain an atomization mixture, and the heated metal source can be contacted with the atomization mixture while carrying out the atomization process. Reactive metal powder spheroidization manufacturing processes are also provided.

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Номер записи: 47
05-01-2017 дата публикации

AQUEOUS SLURRY FOR MAKING A POWDER OF HARD MATERIAL

Номер: US20170001916A1
Автор: MEHROTRA PANKAJ K., Myers Neal S., TRIVEDI Pankaj B.
Принадлежит:

An aqueous slurry that is useful upon being spray dried for the formation of a powder of hard material. The aqueous slurry includes starting powder components of the hard material. The slurry further includes an oxidation inhibitor, a surfactant in an amount between about 0.05 weight percent and about 0.30 weight percent of the weight of the starting powder components of the hard material, a binder, a defoamer and water in an between about 15 weight percent and about 30 weight percent of the weight of the weight of the starting powder components of the hard material. The aqueous slurry has a percent solids value that is between about 70 percent and about 85 percent. 1. A powder of hard material produced by the process comprising the steps of:spray drying an aqueous slurry comprising:starting powder components of the hard material;an oxidation inhibitor in an amount of about 0.2 weight percent to about 0.5 weight percent based on weight of the starting powder components of the hard material;a surfactant in an amount of about 0.05 weight percent to about 0.30 weight percent of the weight of the starting powder components of the hard material;a binder in an amount of about 1.2 weight percent to about 4.0 weight percent of the weight of the starting powder components of the hard material;a defoamer in an amount of about 0.05 weight percent to about 0.35 weight percent of the weight of the starting powder components of the hard material; andwater in an amount of about 15 weight percent and about 30 weight percent of the weight of the starting powder components of the hard material; andthe aqueous slurry having a percent solids of about 70 percent to about 85 percent wherein the percent solids comprises a quotient in percent of the weight of the starting powder components of the hard material divided by the sum of the weight of the starting powder components of the hard material and the weight of the water.2. The powder of hard material of claim 1 , wherein granule size ...

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Номер записи: 48
07-01-2016 дата публикации

Core-shell nanoparticles and method for manufacturing the same

Номер: US20160002438A1
Автор: Hiroshi Kinoshita, Jianjun Yuan
Принадлежит: DIC Corp

Provided are core-shell nanoparticles including a metal nanoparticle core and a shell layer composed of an oxide hybridized with a polyamine containing primary amino groups and/or secondary amino groups, core-shell metal nanoparticles prepared by removing the organic component from the shell layer and including a metal nanoparticle core and a shell layer based on silica, and simple and efficient methods for manufacturing such nanoparticles. Provided are a method for manufacturing a core-shell nanoparticle including performing a sol-gel reaction of an oxide source (C′) in the presence of a metal nanoparticle (A) having thereon a layer of a compound (B) containing a polyamine segment (b1) containing primary amino groups and/or secondary amino groups, a method for manufacturing a core-shell metal nanoparticle further including performing a sol-gel reaction of an organosilane to form a shell layer containing a polysilsesquioxane (D), and nanoparticles prepared by such methods.

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Номер записи: 49
05-01-2017 дата публикации

HYDROGEN-ABSORBING ALLOY, ALLOY POWDER FOR ELECTRODE, NEGATIVE ELECTRODE FOR ALKALINE STORAGE BATTERY, AND ALKALINE STORAGE BATTERY

Номер: US20170002442A1
Автор: Kato Fumio, Ohyama Hideaki, Okabe Akiko
Принадлежит:

A hydrogen-absorbing alloy is provided in which an X-ray diffraction image generated by CuKα rays has at least one peak selected from (1) peak Psp1 at 2θ=32.25±0.15°, (2) peak Psp2 at 2θ=33.55±0.15°, and (3) peak Psp3 at 2θ=37.27±0.15°. 1. A hydrogen-absorbing alloy , wherein (1) a peak Psp1 at 2θ=32.25±0.15°;', '(2) a peak Psp2 at 2θ=33.55±0.15°; and', '(3) a peak Psp3 at 2θ=37.27±0.15°., 'an X-ray diffraction image generated by CuKα rays has at least one peak selected from2. The hydrogen-absorbing alloy according to having a crystal structure belonging to a space group of P63/mmc.3. The hydrogen-absorbing alloy according to claim 1 , whereina ratio I1/Imax of an intensity I1 of the peak Psp1 to an intensity Imax of a maximum peak Pmax of the X-ray diffraction image in a range of 2θ=10 to 90° is 0.01 or more.4. The hydrogen-absorbing alloy according to claim 1 , whereina ratio I2/Imax of an intensity I2 of the peak Psp2 to the intensity Imax of the maximum peak Pmax of the X-ray diffraction image in the range of 2θ=10 to 90° is 0.01 or more.5. The hydrogen-absorbing alloy according to claim 1 , whereina ratio I3/Imax of an intensity I3 of the peak Psp3 to the intensity Imax of the maximum peak Pmax of the X-ray diffraction image in the range of 2θ=10 to 90° is 0.01 or more.6. An alloy powder for an electrode claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hydrogen-absorbing alloy according to .'}7. The alloy powder for the electrode according to claim 6 , wherein the element L is at least one element selected from a set consisting of elements in group 3 and elements in group 4 on a periodic table,', 'the element M is an alkaline-earth metal element,', 'the element E is at least one element selected from a set consisting of: transition metal elements in groups 5 to 11 on the periodic table; elements in group 12; elements in group 13 periods 2 to 5; elements in group 14 periods 3 to 5; N; P; and S, and', 'a molar ratio mE of the element E ...

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Номер записи: 50
01-01-2015 дата публикации

PRECIPITATE STRENGTHENED NANOSTRUCTURED FERRITIC ALLOY AND METHOD OF FORMING

Номер: US20150004043A1
Автор: Alinger Matthew Joseph, Dial Laura Cerully, DiDomizio Richard
Принадлежит:

An alloy and method of forming the alloy are provided. The alloy includes a matrix phase, and a population of particulate phases dispersed within the matrix. The matrix includes iron and chromium; and the population includes a first subpopulation of particulate phases and a second subpopulation of particulate phases. The first subpopulation of particulate phases include a complex oxide, having a median size less than about 20 nm, and present in the alloy in a concentration from about 0.1 volume percent to about 5 volume percent. The second subpopulation of particulate phases have a median size in a range from about 30 nm to about 10 microns, and present in the alloy in a concentration from about 1 volume percent to about 15 volume percent. 1. An alloy , comprising: a first subpopulation of particulate phases comprising a complex oxide, having a median size less than about 20 nm, and present in the alloy in a concentration from about 0.1 volume percent to about 5 volume percent; and', 'a second subpopulation of particulate phases having a median size in a range from about 30 nm to about 10 microns, and present in the alloy in a concentration from about 1 volume percent to about 15 volume percent., 'a matrix phase comprising iron and chromium; and a population of particulate phases dispersed within the matrix, the population comprising2. The alloy of claim 1 , wherein the particulate phases of the first subpopulation comprise at least two elements of the following group: yttrium claim 1 , titanium claim 1 , aluminum claim 1 , zirconium claim 1 , hafnium claim 1 , and magnesium.3. The alloy of claim 2 , wherein the particulate phases of the first subpopulation comprise yttrium and titanium.4. The alloy of claim 1 , wherein the particulate phases of the first subpopulation have a median size less than about 10 nm.5. The alloy of claim 1 , wherein the concentration of the first subpopulation is in an amount from about 0.1 volume percent to about 3 volume percent of the ...

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Номер записи: 51
01-01-2015 дата публикации

NANOSTRUCTURED FERRITIC ALLOY AND METHOD OF FORMING

Номер: US20150004044A1
Автор: Alinger Matthew Joseph, Dial Laura Cerully, DiDomizio Richard
Принадлежит: GENERAL ELECTRIC COMPANY

An alloy and method of forming the alloy are provided. The alloy includes a matrix phase, and a multimodally distributed population of particulate phases dispersed within the matrix. The matrix includes iron and chromium, and the population includes a first subpopulation of particulate phases and a second subpopulation of particulate phases. The first subpopulation of particulate phases include a complex oxide, having a median size less than about 15 nm, and present in the alloy in a concentration from about 0.1 volume percent to about 5 volume percent. The second subpopulation of particulate phases have a median size in a range from about 25 nm to about 10 microns, and present in the alloy in a concentration from about 0.1 volume percent to about 15 volume percent. Further embodiments include articles, such as turbomachinery components and fasteners, for example, that include the above alloy, and methods for making the alloy. 1. An alloy , comprising: a first subpopulation of particulate phases comprising a complex oxide, having a median size less than about 15 nm, and present in the alloy in a concentration from about 0.1 volume percent to about 5 volume percent; and', 'a second subpopulation of particulate phases having a median size in a range from about 25 nm to about 10 microns, and present in the alloy in a concentration from about 0.1 volume percent to about 15 volume percent., 'a matrix phase comprising iron and chromium; and a multimodally distributed population of particulate phases dispersed within the matrix, the population comprising2. The alloy of claim 1 , wherein the particulate phases of the first subpopulation comprise at least two elements of the following group: yttrium claim 1 , titanium claim 1 , aluminum claim 1 , zirconium claim 1 , hafnium claim 1 , and magnesium.3. The alloy of claim 2 , wherein the particulate phases of the first subpopulation comprise yttrium and titanium.4. The alloy of claim 1 , wherein the particulate phases of the ...

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Номер записи: 52
02-01-2020 дата публикации

Green metal composite material

Номер: US20200002786A1
Автор: Fan Fan
Принадлежит:

The invention provides a green metal composite material, which is prepared by the following method: Provide Mg, Mo, Al, Ni, and Ti powders; weigh the Mg, Mo, Al, Ni, and Ti powders; and perform the first ball milling on the Mg, Mo, Al, Ni, and Ti powders; perform vacuum melting to obtain a Mg-based alloy ingots; crush the Mg-based alloy ingots; provide carbon nano tubes and graphene powders; and perform surface modification; mix well the crushed Mg-based alloy ingots and the surface modified carbon nano tubes and the graphene powders, and perform a second ball milling to obtain a second mixed powder; then perform a first heat treatment to obtain a third mixed powder, then perform a second hot pressed sintering. The process technology of this invention solves the problems of poor compatibility, easy to be segregated and unstable property of the non-metallic particles and metallic matrix. 1. A green metal composite material , characterized in that: the green metal composite material mentioned in this patent is prepared by the following method:Provide Mg, Mo, Al, Ni, and Ti powders;Weigh the Mg, Mo, Al, Ni, and Ti powders according to a predetermined chemical formula;Perform a first ball milling on the Mg, Mo, Al, Ni, and Ti powders after weighing to obtain a first mixed powder,Perform vacuum melting on the first mixed powder to obtain a Mg-based alloy ingots;Crush the Mg-based alloy ingots;Provide carbon nano tubes and graphene powders;Perform surface modification on the mentioned carbon nano tubes and graphene powders;Mix well the crushed Mg-based alloy ingots and the surface modified carbon nano tubes and the graphene powders, and perform a second ball milling on the mixture to obtain a second mixed powder;Perform a first heat treatment on the second mixed powder to obtain a third mixed powder,Perform a second hot pressed sintering on the third mixed powder.2. The green metal composite material mentioned in , characterized in that: the predetermined chemical formula ...

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Номер записи: 53
07-01-2021 дата публикации

Ti(C,N)-BASED SUPERHARD METAL COMPOSITE MATERIAL AND PREPARATION METHOD THEREOF

Номер: US20210002745A1
Автор: Chen Hui, CHEN Qiaowang, DENG Ling, Deng Ying, Jiang Shan, WU Taibin, YAN Hui, Zhang Yanhua
Принадлежит: Chongqing University of Arts and Sciences

The disclosure relates to a method for preparing Ti(C,N)-based superhard metal composite materials, with Ti(C,N) powder and (W,Mo,Ta)(C,N) powder as main raw materials and Co powder as binding phase for preparation, thereby obtaining a material in which a microstructure is a double-core rim structure that has both a black core rim and a white core rim. The material has a complete and evenly distributed double-core rim structure. In the condition that the ensured hardness of the material is not reduced and even slightly increased, the toughness of the material is significantly improved, wherein the fracture toughness of the material is in the range of 11.3 to 12.5 MPa·m. 1. A preparation method of Ti(C ,N)-based superhard metal composite material , wherein Ti(C ,N) powder and (W , Mo , Ta)(C ,N) powder are adopted as main raw materials , the (W , Mo , Ta)(C ,N) powder is added into the Ti(C ,N) powder , and a Co powder is adopted as a binding phase , then molding and sintering are performed for preparation , thereby obtaining a double-core rim structure having a microstructure with black core rim and white core rim both; wherein mass fractions of the Ti (C , N) powder , the (W , Mo , Ta) (C , N) powder and the Co powder are 40-50% , 40-50% , 10-20% , respectively; the Ti (C , N) powder , the (W , Mo , Ta) (C , N) powder and the Co powder all have a fineness of 0.5 to 3 μm; specific steps are as follows:weigh the Ti(C,N) powder and the (W, Mo, Ta) (C, N) powder and mix them with the Co powder based on a proportion described above, and then add a paraffin wax, thereafter high-energy ball milling, drying, sieving, press-forming, sintering are performed; the sintering is carried out in sequence based on the following conditions: carried out in a solid phase at 1150° C., maintain the temperature for 60 to 80 minutes, sintering is carried out in a liquid phase at 1400° C. to 1450° C., maintain the temperature for 60 to 80 minutes, then fill in with nitrogen at 7 to 10 MPa, ...

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Номер записи: 54
03-01-2019 дата публикации

HOT WORK TOOL STEEL

Номер: US20190003021A1
Автор: Andersson Jerker, EJNERMARK Sebastian, Medvedeva Anna, Nilsson Cherin, ROBERTSSON Rikard
Принадлежит:

The invention relates hot work tool steel. The steel comprises the following main components (in wt. %): 5. A steel according claim 1 , wherein the content of primary precipitated MX is 0.2-3 vol. % claim 1 , preferably 0.3-1.0 vol. %.8. A steel according to claim 1 , wherein the matrix comprises tempered martensite and/or bainite and the amount of retained austenite is limited to 6 vol. %.9. A steel according to claim 1 , wherein the steel is provided in the form of a powder claim 1 , preferably having a size distribution in the range of 5-150 μm claim 1 , wherein the mean size of the powder particles is in the range of 25-50 μm.10. Use of a steel powder according to for additive manufacturing claim 9 , in particular for making of repairing injection moulding tools.11. A steel according to claim 1 , wherein the matrix comprises tempered martensite and/or bainite and the amount of retained austenite is limited to 5 vol. %.12. A steel according to claim 1 , wherein the matrix comprises tempered martensite and/or bainite and the amount of retained austenite is limited to 4 vol. %.13. A steel according to claim 1 , wherein the matrix comprises tempered martensite and/or bainite and the amount of retained austenite is limited to 2 vol. %.14. A steel according to claim 1 , wherein the steel is provided in the form of a powder claim 1 , having a size distribution in the range of 10-100 μm claim 1 , wherein the mean size of the powder particles is in the range of 25-50 μm.15. A steel according to claim 1 , wherein the steel is provided in the form of a powder claim 1 , having a size distribution in the range of 10-60 μm claim 1 , wherein the mean size of the powder particles is in the range of 25-50 μm. The invention relates to a hot work tool steel.Vanadium alloyed matrix tool steels have been on market for decades and attained a considerable interest because of the fact that they combine a high wear resistance with an excellent dimensional stability and because they have ...

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Номер записи: 55
05-01-2017 дата публикации

MAGNETIC COMPOSITE AND METHOD OF MANUFACTURING THE SAME

Номер: US20170004910A1
Автор: KIM In Gyu, Lee Seung Ho
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A magnetic composite and a method of manufacturing the same are provided. The magnetic composite includes a magnetic material including magnetic material particles and a metal alloy. 1. A magnetic composite comprising:a magnetic material comprising magnetic material particles; anda metal alloy.2. The magnetic composite of claim 1 , wherein the metal alloy is a eutectic alloy.3. The magnetic composite of claim 2 , wherein the eutectic alloy is a binary claim 2 , ternary claim 2 , quaternary claim 2 , or quinary alloy.4. The magnetic composite of claim 2 , wherein the eutectic alloy is an alloy comprising one or more elements selected from a group consisting of indium (In) claim 2 , tin (Sn) claim 2 , cadmium (Cd) claim 2 , bismuth (Bi) claim 2 , silver (Ag) claim 2 , gold (Au) claim 2 , lead (Pb) claim 2 , zinc (Zn) claim 2 , copper (Cu) claim 2 , germanium (Ge) claim 2 , silicon (Si) claim 2 , aluminum (Al) claim 2 , magnesium (Mg) claim 2 , calcium (Ca) claim 2 , and antimony (Sb).5. The magnetic composite of claim 1 , wherein the magnetic material particles are single phase particles dispersed in a binder comprising the metal alloy.6. The magnetic composite of claim 1 , wherein the magnetic material comprises at least one selected from a group consisting of a magnetocaloric material claim 1 , a soft magnetic material claim 1 , and a ferromagnetic material.7. The magnetic composite of claim 1 , wherein the magnetic material is an alloy claim 1 , an oxide claim 1 , or a nitride containing at least one selected from a group consisting of iron (Fe) claim 1 , manganese (Mn) claim 1 , cobalt (Co) claim 1 , nickel (Ni) claim 1 , niobium (Nb) claim 1 , yttrium (Y) claim 1 , lanthanum (La) claim 1 , cerium (Ce) claim 1 , praseodymium (Pr) claim 1 , neodymium (Nd) claim 1 , promethium (Pm) claim 1 , samarium (Sm) claim 1 , europium (Eu) claim 1 , gadolinium (Gd) claim 1 , terbium (Tb) claim 1 , dysprosium (Dy) claim 1 , holmium (Ho) claim 1 , erbium (Er) claim 1 , thulium ( ...

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Номер записи: 56
07-01-2021 дата публикации

METHOD FOR MANUFACTURING RARE EARTH PERMANENT MAGNET

Номер: US20210005380A1
Автор: KIM Dong Hwan, KONG Koon Seung
Принадлежит:

There is provided a method for manufacturing a rare earth sintered magnet having a stable magnetic performance, by uniformly distributing a heavy rear earth element to the surface of the magnet and the grain boundary inside of the magnet by using a mixture of a heavy rare earth compound or a heavy rare earth metal alloy and a rare earth magnet powder, to lower a decrease rate of the magnetic characteristics based on the temperature of the rare earth sintered magnet. 1. A method for manufacturing a rare earth sintered magnet comprising the steps of:preparing a rare earth alloy composed of xwt % RE-ywt % B-zwt % TM-bal.wt % Fe (wherein RE is a rare earth element, TM is a 3d transition element, x=28˜35, y=0.5˜1.5, z=0˜15) and pulverizing the prepared alloy to the size of 1.0˜5.0 μm;preparing a heavy rare earth compound or a heavy rare earth metal alloy and pulverizing the heavy rare earth compound or heavy rare earth metal alloy to the size of 1.0˜5.0 μm;mulling the pulverized rare earth alloy powder and the heavy rare earth compound powder or heavy rare earth metal alloy powder at the ratio of (100−H)wt %:Hwt %, to be mixed;aligning and compacting the mixed powder in a magnetic field, to be magnetized;loading the magnetized mixture powder into a heating furnace and diffusing a heavy rare earth element to a grain boundary of the rare earth alloy under a vacuum or in an inert gas atmosphere;sintering the alloy powder with the diffused heavy rare earth element; andperforming a heat treatment to the sintered alloy.2. The method for manufacturing a rare earth sintered magnet in claim 1 , wherein the heavy rare earth compound is one of the compounds which are Gd-Hydride claim 1 , Gd-Fluoride claim 1 , Gd-Oxide claim 1 , Gd-Oxyfluoride claim 1 , Nd-Hydride claim 1 , Ho-Fluoride claim 1 , Ho-Hydride claim 1 , Dy-Hydride claim 1 , Dy-Fluoride claim 1 , Tb-Hydride and Tb-Fluoride as powders.3. The method for manufacturing a rare earth sintered magnet in claim 1 , wherein the ...

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Номер записи: 57
20-01-2022 дата публикации

COMPACT DEVICE AND PROCESS FOR THE PRODUCTION OF NANOPARTICLES IN SUSPENSION

Номер: US20220016703A1
Автор: Barcikowski Stephan, Lau Marcus, Waag Friedrich
Принадлежит:

The invention shows a device for producing nanoparticles, the device having a pulsed laser with a scanning device for guiding the beam of the laser over a target that is fixed in a flow-through chamber. The flow-through chamber is reversibly connected to a supply line for carrier fluid, so that the flow-through chamber is exchangeable e.g. for a further flow-through chamber having a different target and/or a different dimensioning. 1. A device for the production of nanoparticles , comprising a pulsed laser , a scanning device to guide a beam of the laser , a flow-through chamber having a target support wall , a radiation-transparent wall opposite the target support wall , a supply line connected to at least one reservoir for carrier fluid and connected to the flow-through chamber , a controlled conveying device arranged in the supply line and configured to control a flow velocity of carrier fluid within the flow-through chamber in a range of 1 to 10 mm/s , wherein the laser has a maximum power of 5 W and is configured to emit pulses having a pulse energy of 0.01 to 10 mJ and a pulse duration of 0.5 to 10 ns with a repetition rate of 500 to 5000 Hz and a fluence of 0.1 to 10 J/cm.2. The device according to claim 1 , wherein the laser is configured to emit pulses having a pulse energy of 10 to 1000 μJ and a pulse duration of 0.5 to 1 ns with a repetition rate of 500 to 5000 Hz and a fluence of 0.1 to 10 J/cm.3. The device according to claim 1 , wherein a distance of the radiation-transparent wall section from a target supported by the target support wall is at maximum 5 mm.4. The device according to claim 1 , wherein the scanning device is configured to guide the laser beam at a speed of 0.1 to 10 m/s over a target supported by the target support wall.5. The device according to claim 1 , the conveying device comprising one or both of a controlled valve and a controlled pump.6. The device according to claim 1 , wherein the flow-through chamber is arranged with its ...

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Номер записи: 58
14-01-2016 дата публикации

MANUFACTURING METHOD FOR SINTERED COMPACT

Номер: US20160008885A1
Автор: INUZUKA Tomonori, Kano Akira
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A manufacturing method for a sintered compact includes a first step in which magnetic powder is fabricated by rapid solidification, a second step in which a mass of the magnetic powder is housed in a forming mold, and preliminary heating is performed by placing the mass of the magnetic powder in a preliminary heating part of the forming mold at first temperature that is lower than coarse crystal particle generation temperature, and a third step in which main heating is performed by placing the preliminarily heated mass of the magnetic powder at second temperature that is lower than the coarse crystal particle generation temperature and higher than the first temperature, and press forming is performed while keeping temperature of the magnetic powder at densification temperature or higher. 1. A manufacturing method for a sintered compact serving as a precursor of rare earth magnet , comprising:a first step in which magnetic powder having a microscopic crystal particle is fabricated by rapid solidification;a second step in which a mass of the magnetic powder is housed in a forming mold having a preliminary heating part and a main heating part, and preliminary heating is performed by placing the mass of the magnetic powder in the preliminary heating part at first temperature that is lower than coarse crystal particle generation temperature; anda third step in which main heating is performed by placing the preliminarily heated mass of the magnetic powder at second temperature that is lower than the coarse crystal particle generation temperature and higher than the first temperature, and press forming is performed while keeping temperature of the magnetic powder at densification temperature or higher.2. The manufacturing method according to claim 1 , whereinthe forming mold includes a lower die, a side die that is located above the lower die and forms a cavity with the lower die, and an upper die that is located above the side die and is able to enter and exit from the ...

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Номер записи: 59
08-01-2015 дата публикации

R-T-B-Ga-BASED MAGNET MATERIAL ALLOY AND METHOD OF PRODUCING THE SAME

Номер: US20150010426A1
Автор: NEGI Noriyuki, SAGUCHI Akihiko, Yonemura Mitsuharu
Принадлежит:

Disclosed is an R-T-B—Ga-based magnet material alloy where R is at least one element selected from rare earth metals including Y, and T is one or more transition metals with Fe being an essential element. The R-T-B—Ga-based magnet material alloy includes: an RTB phase 3 which is a principal phase, and an R-rich phase (1 and 2) which is a phase enriched with the R, wherein a non-crystalline phase 1 in the R-rich phase has a Ga content (mass %) that is higher than a Ga content (mass %) of a crystalline phase 2 in the R-rich phase. With this, it is possible to enhance the magnetic properties of rare earth magnets that are manufactured from the alloy and reduce variations in the magnetic properties thereof. 1. An R-T-B—Ga-based magnet material alloy (where R is at least one element selected from rare earth metals including Y , and T is one or more transition metals with Fe being an essential element) , the R-T-B—Ga-based magnet material alloy , comprising:{'sub': 2', '14, 'an RTB phase which is a principal phase; and'}an R-rich phase which is a phase enriched with the R, the R-rich phase including a non-crystalline phase and a crystalline phase, the non-crystalline phase having a Ga content (mass%) that is higher than a Ga content (mass %) of the crystalline phase.2. The R-T-B—Ga-based magnet material alloy according to claim 1 , wherein the R-T-B—Ga-based magnet material alloy has an average thickness in a range of 0.1 mm to 1.0 mm.3. A method of producing the R-T-B—Ga-based magnet material alloy according to claim 1 , the method comprising:a first step of casting a ribbon from a molten R-T-B—Ga-based alloy using a strip casting method and crushing the ribbon to produce alloy flakes; anda second step of thermally maintaining the alloy flakes by holding the alloy flakes at a predetermined temperature for a predetermined time and then cooling the alloy flakes;the first step and the second step being performed under reduced pressure or in an inert gas atmosphere;the ...

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Номер записи: 60
27-01-2022 дата публикации

UNDERCOOLED LIQUID METALLIC DROPLETS HAVING A PROTECTIVE SHELL

Номер: US20220023940A1
Автор: Tevis Ian, Thuo Martin
Принадлежит: SAFI-Tech

A droplet comprises a core including an alloy comprising a majority of a first metallic element and a minority of a second element, wherein the core is in a liquid state below a solidus temperature of the alloy. A shell is arranged to enclose the core and includes an exterior surface comprising a majority of the second element and a minority of the first metallic element, wherein the shell is in a solid state below the solidus temperature of the alloy. The alloy can comprise a solder material that can be used to form solder connections below a solidus temperature of the alloy. 1. A droplet comprising:a core including an alloy comprising a majority of a first metallic element and a minority of a second element, wherein the core is in a liquid state below a solidus temperature of the alloy; anda shell arranged to enclose the core and including an exterior surface comprising a majority of the second element and a minority of the first metallic element, wherein the shell is in a solid state below the solidus temperature of the alloy.2. The droplet of wherein the second element is a metal.3. The droplet of wherein the second element is a metalloid.4. The droplet of wherein the shell includes an innermost layer having a predominant concentration of the first metallic element and an outermost layer having a predominant concentration of the second element.5. The droplet of wherein the innermost layer has a greater E° than the outermost layer.6. The droplet of wherein the innermost layer has a lower E° than the outermost layer.7. The droplet of wherein the innermost layer and the outermost layer comprise oxides of the first metallic element and oxides of the second element.8. The droplet of further comprising a ligand coating on the exterior surface.9. A method of forming a droplet claim 1 , the method comprising:forming a liquid core of the droplet from an alloy including a first element, a second element and a third element;forming a solid shell around the liquid core, the ...

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Номер записи: 61
27-01-2022 дата публикации

METAL POWDER FOR 3D-PRINTING

Номер: US20220023941A1
Автор: BRUMM HOLGER, Schnitter Christoph, STENZEL MELANIE, WEINMANN MARKUS
Принадлежит: TANIOBIS GMBH

The present invention relates to metal powders which are suitable to be employed in 3D printing processes as well as a process for the production of said powders. 125-. (canceled)26: A metal powder suitable for use in a 3D printing process , the metal powder comprising:a metal selected from the group consisting of tantalum, titanium and niobium, and alloys of tantalum, titanium and niobium,wherein,{'sub': 'A', 'claim-text': {'br': None, 'sub': A', 'Feret min', 'Feret max, 'i': =x', '/x, 'Ψ.'}, 'particles of the metal powder comprise an average aspect ratio Ψof from 0.7 to 1, and'}27: The metal powder as recited in claim 26 , wherein the metal powder comprises an alloy of titanium and niobium.28: The metal powder as recited in claim 27 , wherein the alloy further comprises tantalum.29: The metal powder as recited in claim 26 , wherein the metal powder comprises a metal alloy of titanium claim 26 , niobium and tantalum.30: The metal powder as recited in claim 26 , wherein the metal powder further comprises:a tap density of 40 to 80% of a theoretical density of the metal powder, each determined according to ASTM B527.31: The metal powder as recited in claim 26 , wherein the metal powder further comprises:a flowability of less than 25 s/50 g, determined according to ASTM B213.32: The metal powder as recited in claim 26 , wherein the metal powder further comprises:a particle size distribution D10>2 μm,a particle size distribution D90<80 μm, anda particle size distribution D50 of 20 to 50 μm,each determined according to ASTM B822.33: The metal powder as recited in claim 26 , wherein the metal powder further comprises:a particle size distribution D10 of >20 μm,a particle size distribution D90 of <150 μm, anda particle size distribution D50 of 40 to 90 μm,each determined according to ASTM B822.34: The metal powder as recited in claim 26 , wherein the metal powder further comprises:a powder distribution D10 of >50 μm,a powder distribution D90 of <240 μm, anda powder ...

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Номер записи: 62
08-01-2015 дата публикации

METHOD FOR PREPARING HOLLOW SILVER PARTICLES AND CORE-SHELL SILVER PARTICLES

Номер: US20150010769A1
Автор: CHIEN I-CHEN, SHIH Shao-Ju, WU Yu-Hsuan
Принадлежит: National Taiwan University of Science and Technology

A method for preparing core-shell and hollow silver particles is provided. In the method silver salts and glycine nitrate or starch are mixed with solvent to form precursor solution. The mole percentage of the silver salts over the silver salts plus glycine nitrate or starch is 5 to 50 mol %. The precursor solution is then atomized to form precursor droplets. The precursor droplets are heated by pyrolysis to form silver particles. The composition of the precursor solution can be adjusted to finely manipulate the structure of the silver particles. 1. A method for manufacturing core-shell and hollow silver particles , comprising:mixing a silver salt with a glycine nitrate or starch as a solute in a polar solvent to form a precursor solution, wherein the mole percentage of the silver salt over the silver salts plus glycine nitrate or starch is 5 to 50 mol %;atomizing the precursor solution to form a plurality of precursor droplets; andheating the precursor droplets to pyrolyze the precursor droplets to form the core-shell silver particles and the hollow silver particles.2. The method of claim 1 , wherein claim 1 , in mixing the silver salt with the glycine nitrate or the starch as the solute in the polar solvent to form the precursor solution claim 1 , the silver salt plus glycine nitrate or starch are 0.01-10 wt % to the precursor solution.3. The method of claim 1 , wherein claim 1 , in mixing the silver salt with the glycine nitrate or the starch as the solute in the polar solvent to form a precursor solution claim 1 , the silver salt is silver nitrate or silver acetate.4. The method of claim 1 , wherein claim 1 , in mixing the silver salt with the glycine nitrate or the starch as the solute in the polar solvent to form a precursor solution claim 1 , the polar solvent is water.5. The method of claim 1 , wherein claim 1 , in mixing the silver salt with the glycine nitrate or the starch as the solute in the polar solvent to form a precursor solution claim 1 , the ...

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Номер записи: 63
14-01-2021 дата публикации

Method And System For Manufacturing Small Adaptive Engines

Номер: US20210008620A1
Автор: Andrew VanOs LaTour, Christopher Paul Eonta, Stephen Ziegenfuss
Принадлежит: Molyworks Materials Corp

A method for manufacturing small adaptive engines uses a battlefield repository having cloud services that is configured to enable additive manufacturing (AM) of engine parts and assemblies. The method also uses a compilation of recipes/signatures for building the engine parts and the assemblies using additive manufacturing (AM) processes and machine learning programs. An additive manufacturing system and an alloy powder suitable for performing the additive manufacturing (AM) processes can be provided. In addition, the engine parts can be built using the additive manufacturing (AM) system, the alloy powder, the battlefield repository and the compilation of recipes/signatures. A system for manufacturing small adaptive engines includes the battlefield repository, the compilation of recipes/signatures, a foundry system for providing the alloy powder and an additive manufacturing (AM) system configured to perform the additive manufacturing (AM) processes.

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Номер записи: 64
14-01-2021 дата публикации

EXPEDITIONARY ADDITIVE MANUFACTURING (ExAM) SYSTEM AND METHOD

Номер: US20210008621A1
Автор: Andrew VanOs LaTour, Christopher Paul Eonta, Kai Prager, Matthew Charles, Tom Reed
Принадлежит: Molyworks Materials Corp

An expeditionary additive manufacturing (ExAM) system for manufacturing metal parts includes a mobile foundry system configured to produce an alloy powder from a feedstock, and an additive manufacturing system configured to fabricate a part using the alloy powder. The additive manufacturing system includes a computer system having parts data and machine learning programs in signal communication with a cloud service. The parts data can include material specifications, drawings, process specifications, assembly instructions, and product verification requirements for the part. An expeditionary additive manufacturing (ExAM) method for making metal parts includes the steps of transporting the mobile foundry system and the additive manufacturing system to a desired location; making the alloy powder at the location using the mobile foundry system; and building a part at the location using the additive manufacturing system.

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Номер записи: 65
14-01-2021 дата публикации

METHODS FOR THE PRODUCTION OF NANOCOMPOSITES FOR HIGH TEMPERATURE ELECTROCHEMICAL ENERGY STORAGE DEVICES

Номер: US20210008628A1
Автор: Alsharaeh Edreese, Arsalan Muhammad, Mussa Yasmin
Принадлежит:

Presented here are nanocomposites and rechargeable batteries. In certain embodiments, nanocomposites a nanocomposite is resistant to thermal runaway, and useful as an electrode material in rechargeable batteries that are safe, reliable, and stable when operated at high temperature and high pressure. The present disclosure also provides methods of preparing rechargeable batteries. For example, rechargeable batteries that include nanocomposites of the present disclosure as an electrode material have, in some embodiments, an enhanced performance and stability over a broad temperature range from room temperature to high temperatures. These batteries fill an important need by providing a safe and reliable power source for devices operated at high temperatures and pressures such as downhole equipment used in the oil industry. 1. A method of preparing a nanoparticle/graphene/boron nitride (BN) nanocomposite , the method comprising steps of:ball-milling a mixture comprising a metal salt, graphene, and boron nitride; andcalcinating the mixture.2. (canceled)3. The method according to claim 1 , wherein the metal salt is a cobalt salt.4. The method according to claim 1 , wherein the metal salt is selected from the group consisting of cobalt (II) halide claim 1 , cobalt (II) acetate claim 1 , cobalt (II) hydroxide claim 1 , cobalt (II) sulfate claim 1 , cobalt (II) nitrate claim 1 , and hydrates thereof.58-. (canceled)9. The method of claim 1 , wherein the step of calcinating the mixture comprises heating the mixture in an oven claim 1 , wherein the temperature of the oven is increased to a temperature in the range of 325 to 375° C. and subsequently held at that temperature for at least 1 hour.10. (canceled)11. The method of claim 9 , wherein the temperature of the oven is increased to a temperature in the range of 345 to 355° C. at a rate of 3 to 15° C./min and subsequently held at that temperature for 1 to 10 hours.12. (canceled)13. A nanoparticle/graphene/boron nitride (BN) ...

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Номер записи: 66
14-01-2021 дата публикации

HIGH MELTING POINT METAL OR ALLOY POWDERS ATOMIZATION MANUFACTURING PROCESSES

Номер: US20210008629A1
Автор: Chen Shizhu, Li Hui, ST-LAURENT Sylvain
Принадлежит: 5N PLUS INC.

There are provided high melting point metal or alloy powder atomization manufacturing processes comprising providing a melt of the high melting point metal or alloy through a feed tube; diverting the melt at a diverting angle with respect to a central axis of the feed tube to obtain a diverted melt; directing the diverted melt to an atomization area; and providing at least one atomization gas stream to the atomization area. The atomization process can be carried out in the presence of water within an atomization chamber used for the atomization process. 3. The process of claim 1 , wherein the at least one atomization gas stream is provided at average gas velocity of at least 300 m/s.4. The process of claim 1 , wherein the diverting angle (90-Beta) is about 30 to about 70 degrees.5. The process of claim 1 , wherein the diverting angle is about 40 to less than about 90 degrees.6. The process of claim 1 , wherein the process comprises providing the metal having said melting point of 500° Celsius to 1800° Celsius.7. The process of claim 6 , wherein a ratio of the at least one atomization gas to the metal in the atomization area is about 15 000 to about 30 000 cmof gas per cmof the metal to be atomized.8. The process of claim 6 , wherein a ratio of the at least one atomization gas to the metal in the atomization area is about 5 000 to about 40 000 cmof gas per cmof the metal to be atomized.9. (canceled)10. The process of claim 6 , wherein the metal is an element chosen from Al claim 6 , Fe claim 6 , Ni claim 6 , Co claim 6 , Cr claim 6 , Mn claim 6 , Si claim 6 , Ti claim 6 , Ag claim 6 , Cu claim 6 , Mo claim 6 , Pt claim 6 , Pd claim 6 , Au and Sn.11. The process of claim 6 , wherein the metal is Cu.12. The process of claim 1 , wherein the process comprises providing the alloy having said melting point of 500° Celsius to 1800° Celsius.13. The process of claim 12 , wherein the alloy has a liquidus temperature of about 500° Celsius to about 1500° Celsius.14. The process ...

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Номер записи: 67
10-01-2019 дата публикации

SILVER ALLOY POWDER AND METHOD FOR PRODUCING SAME

Номер: US20190009341A1
Автор: Inoue Kenichi, Michiaki Yoshiyuki, YOSHIDA Masahiro
Принадлежит: DOWA ELECTRONICS MATERIALS CO., LTD.

While a molten metal obtained by melting silver and a metal, which is selected from the group consisting of tin, zinc, lead and indium, in an atmosphere of nitrogen is allowed to drop, a high-pressure water (preferably pure water or alkaline water) is sprayed onto the molten metal in the atmosphere or an atmosphere of nitrogen to rapidly cool and solidify the molten metal to produce a silver alloy powder which comprises silver and the metal which is selected from the group consisting of tin, zinc, lead and indium and which has an average particle diameter of 0.5 to 20 μm, the silver alloy powder having a temperature of not higher than 300° C. at a shrinking percentage of 0.5%, a temperature of not higher than 400° C. at a shrinking percentage of 1.0% and a temperature of not higher than 450° C. at a shrinking percentage of 1.5% in a thermomechanical analysis. 1. A silver alloy powder comprising silver and a metal which is selected from the group consisting of tin , zinc , lead and indium , the silver alloy powder having an average particle diameter of 0.5 to 20 μm , and the silver alloy powder having a temperature of not higher than 300° C. at a shrinking percentage of 0.5% in a thermomechanical analysis.2. A silver alloy powder as set forth in claim 1 , which has a temperature of not higher than 400° C. at a shrinking percentage of 1.0% in said thermomechanical analysis.3. A silver alloy powder as set forth in claim 1 , which has a temperature of not higher than 450° C. at a shrinking percentage of 1.5% in said thermomechanical analysis.4. A silver alloy powder as set forth in claim 1 , which has an oxygen content of not higher than 6% by weight.5. A silver alloy powder as set forth in claim 1 , which has a carbon content of not higher than 0.5% by weight.6. A silver alloy powder as set forth in claim 1 , which has a BET specific surface area of 0.1 to 3.5 m/g.7. A silver alloy powder as set forth in claim 1 , which has a tap density of not less than 2.5 g/cm.8. A ...

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Номер записи: 68
09-01-2020 дата публикации

TECHNIQUES FOR PRODUCING SMA MATERIALS AND POWDERS

Номер: US20200009661A1
Автор: SNIRS Yoav, YOUNG Marcus Lynn
Принадлежит:

Embodiments of the present disclosure provide improved techniques for creating SMA materials and SMA powders. SMA materials and powders formed may be used to form porous structures suitable for applications such as biomaterials, damping applications, actuators, and/or sensors. Embodiments for performing hydriding and dehydriding of SMA wires at low pressure and low temperature are provided. Methods may be used to produce a shape memory alloy (SMA) powder. Such methods may include hydriding a length SMA wire under low pressure for a period of time to produce a length of hydrided SMA wire, crushing the length of hydrided SMA wire to form a hydrided SMA powder, and dehydriding the hydrided SMA powder to form a dehydrided SMA powder. 1. A method comprising: hydriding a metal wire using an acid for a period of time to form a spiral groove along a length of the metal wire; and', 'dehydriding the metal wire,, 'forming a spiral groove on a metal wire, said method comprisingwherein the spiral groove forms on the metal wire as a result of a transformation caused by a volume expansion of the wire during the hydriding.2. The method of claim 1 , further comprising controlling a depth of the spiral groove by controlling a duration of the period of time of the hydriding.3. The method of claim 2 , wherein the depth of the spiral groove increases as the duration of the period of time of the hydriding increases.4. The method of claim 1 , further comprising:monitoring, during the hydriding, a temperature of the acid; andcontrolling, during the hydriding, the temperature of the acid during the hydriding, wherein the controlling maintains the temperature of the acid within a threshold tolerance of a target hydriding temperature during the period of time.5. The method of claim 1 , wherein the metal wire comprises a shape memory alloy (SMA) wire.6. The method of claim 5 , further comprising incorporating the metal wire into an article of manufacture after the dehydriding.7. The method of ...

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Номер записи: 69
11-01-2018 дата публикации

RIBBONS AND POWDERS FROM HIGH STRENGTH CORROSION RESISTANT ALUMINUM ALLOYS

Номер: US20180010216A1
Автор: Bayansan Davaadorj, Croteau Joseph R., Ramos Evander, Sanaty-Zadeh Amirreza, Vo Nhon Q.
Принадлежит:

Aluminum alloys, fabricated by a rapid solidification process, with high strength, high ductility, high corrosion resistance, high creep resistance, and good weldability. 1. An additively manufactured component manufactured by the method of .2. The method of claim 25 , wherein the alloy comprises a dispersion of nano-precipitates of AlZr with L1crystal structure in the aluminum matrix claim 25 , having an average diameter ranging from about 3 nm to about 50 nm.3. The method of claim 25 , the alloy further comprising about 0.3 to about 1.5% by weight of at least one of titanium claim 25 , hafnium claim 25 , vanadium claim 25 , niobium and tantalum.4. The method of claim 25 , wherein the alloy comprises a dispersion of AlZr primary precipitates claim 25 , having an average diameter ranging from about 0.05 μm to about 1.5 μm.5. (canceled)6. The method of claim 25 , wherein the alloy comprises as an impurity no more than about 0.05 wt. % of any one of scandium claim 25 , erbium claim 25 , thulium claim 25 , ytterbium claim 25 , or lutetium.7. The method of claim 25 , wherein the alloy is thermally stable up to an operating temperature of about 425° C.8. The method of claim 28 , wherein the alloy can be extruded at a thermal working window up to about 450° C.9. (canceled)10. The method of claim 25 , wherein the alloy has a fine grain structure with average grain diameters between about 200 nm and about 2 μm.11. An extruded component manufactured by the method of .12. The extruded component of claim 11 , wherein the extruded component is adapted for use in at least one application selected from a group consisting of aerospace claim 11 , automotive and marine applications.1316-. (canceled)17. A protective coating for magnesium or aluminum components claim 31 , the protective coating being manufactured by the method of .18. (canceled)19. The method of claim 25 , wherein the fabricating step comprises a gas-atomization process.20. An additively manufactured component ...

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Номер записи: 70
11-01-2018 дата публикации

METHOD OF MANUFACTURING HARD METAL COMPOSITION FOR PRECIOUS METAL

Номер: US20180010219A1
Автор: Song Jeong-su
Принадлежит:

The invention relates to a cemented carbide composition producing method for precious metal, which includes a titanium nitride component contained therein and shows excellent workability, corrosion resistance, reduction in weight and other desirable mechanical properties, as well as the low amount of nickel used as a metallic binder and an aluminum oxide coating helps to suppress potential negative skin reactions. 1. A cemented carbide composition producing method for precious metal which comprises the steps of:mixing a metallic binder in an amount having a percentage by weight of about 10 to about 20%, TiN in an amount having a percentage by weight of about 1 to about 20%, a carbide additive in an amount having a percentage by weight of about 20 to about 40% and tungsten carbide in an amount having a percentage by weight of about 20 to about 49% to form a metal mixture;milling the metal mixture with an organic solvent and paraffin wax added to the metal mixture to form a milled product;drying the milled product in conditions permitting at least the majority of the organic solvent to evaporate to form a dried product;sieving the dried product to remove impurities to form a sieved product;molding the sieved product in a compression molding process to form a molded product; andsintering the molded product.2. A method according to claim 1 , further comprising the step of mixing aluminum oxide powder to the metal mixture in an amount equal to about 1 to 3 parts by weight with the metal mixture being 100 parts by weight.3. A method according to claim 1 , wherein the metallic binder comprises one of nickel claim 1 , cobalt claim 1 , and a combination of nickel and cobalt.4. A method according to claim 1 , wherein the metallic binder comprises nickel and cobalt mixed in a ration by weight of 1:3.5. A method according to claim 1 , wherein the carbide additive comprises one of chrome carbide claim 1 , molybdenum carbide claim 1 , vanadium carbide claim 1 , tantalum carbide ...

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Номер записи: 71
11-01-2018 дата публикации

ADDITIVE MANUFACTURING METHOD AND POWDER

Номер: US20180010221A1
Автор: ASWATHANARAYANASWAMY Ravi Guttamindapalli, JERRARD Peter George Eveleigh, SHEYKH-POOR Hossein
Принадлежит: RENISHAW PLC

A method of manufacturing a part including selective laser melting of a powder including a steel alloy containing, by weight, 16% to 19% chromium and 12.2% to 13.5% nickel, wherein the powder is substantially non-magnetic. 1. A method of manufacturing a part comprising selective laser melting of a powder comprising a steel alloy containing , by weight , 16% to 19% chromium and 12.2% to 13.5% nickel , wherein the powder is substantially non-magnetic.2. A method according to claim 1 , wherein less than 2% by volume of the steel alloy is in the ferrite phase.3. A method according to claim 2 , wherein less than 1.5% by volume of the steel alloy is in the ferrite phase.4. A method according to claim 3 , wherein less than 1% by volume of the steel alloy is in the ferrite phase.5. A method according to claim 4 , wherein less than 0.5% by volume of the steel alloy is in the ferrite phase.6. A method according to claim 4 , wherein substantially 0% by volume of the steel alloy is in the ferrite phase.7. A method according to claim 1 , wherein the powder has a hall flow of less than 23 s/50 g.8. A method according to claim 7 , wherein the powder has a hall flow of less than 22 s/50 g.9. A method according to claim 1 , wherein the alloy contains claim 1 , by weight claim 1 , 12.2% to 13.2% nickel.10. A method according to claim 9 , wherein the alloy contains claim 9 , by weight claim 9 , 12.5% to 12.9% nickel.11. A method according to claim 1 , wherein the alloy contains claim 1 , by weight claim 1 , less than 1% manganese.12. A method according to claim 11 , wherein the alloy contains claim 11 , by weight claim 11 , less than 0.7% manganese.13. A method according to claim 12 , wherein the alloy contains claim 12 , by weight claim 12 , less than 0.5% manganese.14. A method according to claim 11 , wherein the alloy contains claim 11 , by weight claim 11 , less than 0.01% sulphur.15. A method according to claim 1 , wherein the alloy contains claim 1 , by weight claim 1 , 0.05% to ...

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Номер записи: 72
14-01-2021 дата публикации

HARD PARTICLES AND SINTERED SLIDING MEMBER USING THE SAME

Номер: US20210010112A1
Автор: ANDOU Kimihiko, KAMO Yuuki, Yamada Takayuki
Принадлежит:

The present disclosure provides hard particles having improved wear resistance and a sintered sliding member using the hard particles. The present disclosure relates to a hard particle consisting of: 1% to 7% by mass of La, 30% to 50% by mass of Mo, 10% to 30% by mass of Ni, 10% by mass or less of Mn, 1.0% by mass or less of C, with the balance being unavoidable impurities and Co, and to a sintered sliding member using the hard particles. 1. A hard particle consisting of: 1% to 7% by mass of La , 30% to 50% by mass of Mo , 10% to 30% by mass of Ni , 10% by mass or less of Mn , 1.0% by mass or less of C , with the balance being unavoidable impurities and Co.2. A sintered sliding member comprising:an iron-based base material; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hard particles according to dispersed in the iron-based base material.'}3. The sintered sliding member according to claim 2 , wherein the sintered sliding member is a valve seat or a valve guide. The present application claims priority from Japanese patent application JP 2019-130219 filed on Jul. 12, 2019, the entire content of which is hereby incorporated by reference into this application.The present disclosure relates to hard particles, in particular, hard particles appropriate for improving wear resistance of a sintered sliding member, and to a sintered sliding member using the hard particles.In an automobile, sliding members are used for various equipment, such as an engine and a transmission. In such sliding members, a valve seat and a valve guide for an engine are exposed to a severely sliding environment, such as a high temperature and low oxidation environment caused in association with a recent improvement of engine performance, thereby being required to have high wear resistance.As the sintered sliding members, such as the valve seat and the valve guide, a sintered sliding member in which hard particles excellent in wear resistance are dispersed in an iron-based base material ...

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Номер записи: 73
14-01-2016 дата публикации

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

Номер: US20160012946A1
Автор: Horikita Masaki, Nakajima Kenichiro, YAMAZAKI Takashi
Принадлежит: SHOWA DENKO K.K.

Provided is a method of manufacturing an alloy for an R-T-B-based rare earth sintered magnet, with which an R-T-B-based magnet having high coercive force can be obtained even when the B concentration is low and the Dy concentration is zero or extremely low. 1. A method of manufacturing an alloy for an R-T-B-based rare earth sintered magnet , comprising:a casting step of manufacturing a cast alloy by casting a molten alloy,a hydrogenating step of absorbing hydrogen in the cast alloy; anda dehydrogenating step of removing hydrogen from the cast alloy that absorbs hydrogen in an inert gas atmosphere at a temperature lower than 550° C.,wherein the molten alloy comprises B; a rare earth element R; a transition metal T comprising Fe; a metal element M that comprises at least one metal selected from the group consisting of Al, Ga, and Cu; and unavoidable impurities,the R content is 13 at % to 15.5 at %,the B content is 5.0 at % to 6.0 at %,the M content is 0.1 at % to 2.4 at %,the T content is a balance,a ratio of a Dy content to a total content of the rare earth element is 0 at % to 65 at %, and {'br': None, '0.32≦B/TRE≦0.40\u2003\u2003(1)'}, 'the molten alloy satisfies the below formula (1)wherein B represents a boron concentration (at %), and TRE represents a total concentration (at %) of all the rare earth elements in the formula (1).2. A method of manufacturing an alloy for an R-T-B-based rare earth sintered magnet , comprising:a casting step of manufacturing a cast alloy by casting a molten alloy,a hydrogenating step of absorbing hydrogen in the cast alloy; anda dehydrogenating step of removing hydrogen from the cast alloy that absorbs hydrogen in a vacuum at a temperature lower than 600° C.,wherein the molten alloy comprises B; a rare earth element R; a transition metal T comprises Fe; a metal element M that comprises at least one metal selected from the group consisting of Al, Ga, and Cu; and unavoidable impurities,the R content is 13 at % to 15.5 at %,the B ...

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Номер записи: 74
11-01-2018 дата публикации

METHOD FOR PRODUCING RFeB SYSTEM SINTERED MAGNET

Номер: US20180012701A1
Автор: Hirokazu Kubo, Masashi Matsuura, Masato Sagawa, Michihide NAKAMURA, Satoshi Sugimoto, Yasuhiro Une
Принадлежит: Intermetallics Co Ltd

A method for producing an RFeB system sintered magnet according to the present invention includes: a process (S 1 ) of preparing a lump of HDDR-treated raw material alloy that contains a polycrystalline substance including crystal grains having an average grain size of 1 μm or less in terms of an equivalent circle diameter calculated from an electron micrograph image, by an HDDR treatment including steps of heating a lump of RFeB system alloy containing 26.5 to 29.5% by weight of the rare-earth element R, in a hydrogen atmosphere at a temperature between 700 and 1,000° C., and changing the atmosphere to vacuum while maintaining the temperature within a range from 750 to 900° C.; a process (S 2 ) of preparing a lump of raw material alloy having a high rare-earth content by heating the lump of HDDR-treated raw material alloy at a temperature between 700 and 950° C. in a state where the HDDR-treated raw material alloy is in contact with a contact substance including a second alloy that contains the rare-earth element R at a higher content ratio than a content ratio of the rare-earth element R in the RFeB system alloy; a process (S 3 ) of preparing raw material alloy powder by fine pulverization of the lump of raw material alloy having a high rare-earth content into powder having an average particle size of 1 μm or less; an orienting process (S 4 ) including steps of placing the raw material alloy powder in a mold, and applying a magnetic field to the raw material alloy powder without conducting compression molding; and a sintering process (S 5 ) including a step of heating the oriented raw material alloy powder at a temperature between 850 and 1,050° C.

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Номер записи: 75
10-01-2019 дата публикации

R-T-B-Ga-BASED MAGNET MATERIAL ALLOY AND METHOD OF PRODUCING THE SAME

Номер: US20190013122A1
Автор: NEGI Noriyuki, SAGUCHI Akihiko, Yonemura Mitsuharu
Принадлежит:

Disclosed is an R-T-B—Ga-based magnet material ahoy where R is at least one element selected from rare earth metals including Y and excluding Gd, Tb, Dy, Ho, Er, TM, Yb, and Lu, and Tis one or more transition metals with Fe being an essential element. The R-T-B—Ga-based magnet material alloy includes: an RTB phase which is a principal phase, and an R-rich phase ( and ) which is a phase enriched with the R, wherein a non-crystalline phase in the R-rich phase has a Ga content (mass %) that is higher than a Ga content (mass %) of a crystalline phase in the R-rich phase. With this, it is possible to enhance the magnetic properties of rare earth magnets that are manufactured from the alloy and reduce variations in the magnetic properties thereof. 1. An R-T-B—Ga-based magnet material alloy (where R is at least one element selected from rare earth metals including Y and excluding Gd , Tb , Dy , Ho , Er , Tm , Yb , and Lu , and Tis one or more transition metals with Fe being n essential element) , the R-T-B—Ga-based magnet material alloy , comprising:{'sub': 2', '14, 'an RTB phase which is a principal phase; and'}an R-rich phase which is a phase enriched with the R, the R-rich phase including a on-crystalline phase and a crystalline phase, the non-crystalline phase having a Ga content in mass % that is higher than a Ga content in mass % of the crystalline phase.2. The R-T-B—Ga-based magnet material alloy according to claim 1 , wherein the R-T-B—Ga-based magnet material alloy has an average claim 1 , thickness in a range of 0.1 mm to 1.0 mm. The present invention relates to an alloy for use as a rare earth magnet material and a method of producing the same. More particularly, the present invention relates to an R-T-B—Ga-based magnet material alloy and a method of producing the same capable of enhancing the magnetic properties of rare earth magnets that are manufactured from the alloy and reducing variations in the magnetic properties thereof.R-T-B-based alloys, which exhibit ...

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Номер записи: 76
10-01-2019 дата публикации

SOFT MAGNETIC ALLOY POWDER AND DUST CORE USING SAME

Номер: US20190013123A1
Автор: KOJIMA TOSHIYUKI, MAEDE Masato
Принадлежит:

Provided herein is a soft magnetic alloy powder that can exhibit a high saturation flux density and desirable soft magnetic characteristics. A dust core using the soft magnetic alloy powder is also provided. The soft magnetic alloy powder is an Fe-based nanocrystalline soft magnetic alloy powder of a crystallized Fe-based amorphous soft magnetic alloy powder, and has a DSC curve with a first peak that is 15% or less of a first peak of the Fe-based amorphous soft magnetic alloy in terms of a maximum value. 1. An Fe-based nanocrystalline soft magnetic alloy powder of a crystallized Fe-based amorphous soft magnetic alloy ,the Fe-based nanocrystalline soft magnetic alloy powder having a differential scanning calorimetry (DSC) curve with a first peak that is 15% or less of a first peak of the Fe-based amorphous soft magnetic alloy in terms of a maximum value.2. The Fe-based nanocrystalline soft magnetic alloy powder according to claim 1 , wherein the DSC curve of the Fe-based nanocrystalline soft magnetic alloy powder has a second peak occurring on a higher temperature side of the first peak of the Fe-based nanocrystalline soft magnetic alloy powder and having a maximum value that is 50% or more and 100% or less of a maximum value of a second peak of the Fe-based amorphous soft magnetic alloy occurring on a higher temperature side of the first peak of the Fe-based amorphous soft magnetic alloy.3. The Fe-based nanocrystalline soft magnetic alloy powder according to claim 1 , wherein the second peak of the Fe-based nanocrystalline soft magnetic alloy powder has two or more peaks including a low-temperature-side second peak claim 1 , and a high-temperature-side second peak.4. The Fe-based nanocrystalline soft magnetic alloy powder according to claim 3 , wherein the low-temperature-side second peak is smaller than the high-temperature-side second peak in terms of a maximum value.5. The Fe-based nanocrystalline soft magnetic alloy according to claim 3 , wherein the two or ...

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Номер записи: 77
03-02-2022 дата публикации

DIE CASTING METHOD FOR FILTERING CAVITY

Номер: US20220032364A1
Автор: Huang Ziqiang, LI Gunan, REN Huaide, TAN Jie, WANG Jicheng, ZHANG YING
Принадлежит:

A die casting method includes stirring an aluminum alloy liquid in a stirrer under an airtight vacuum condition. The stirrer includes an electromagnetic inductor and a stirring rod. The aluminum alloy liquid is simultaneously subjected to an electromagnetic stirring in a direction of a magnetic field generated by the electromagnetic inductor and a mechanical stirring under a rotation action of the stirring rod. The aluminum alloy liquid is stirred for 20-80 minutes until the aluminum alloy liquid becomes semisolid to obtain a semisolid aluminum alloy slurry. The method further includes injecting the semisolid aluminum alloy slurry into a filter die to perform die casting molding at an injection speed of 1.5-2.5 m/s, an injection specific pressure of 30-80 MPa, a pressurization pressure of 60-80 MPa, and a temperature of the filter die of 250-400° C., and maintaining pressure for 7-30 seconds to obtain the filtering cavity. 110.-. (canceled)11. A die casting method for a filtering cavity comprising: an electromagnetic inductor; and', 'a stirring rod arranged across an inside of the stirrer;, 'transferring an aluminum alloy liquid to a stirrer includingcovering the stirrer and evacuating air inside the stirrer; an electromagnetic stirring in a direction of a magnetic field generated by the electromagnetic inductor; and', 'a mechanical stirring under a rotation action of the stirring rod;, 'starting the stirrer to stir the aluminum alloy liquid under an airtight vacuum condition, the aluminum alloy liquid being simultaneously subjected tocontinuing stirring the aluminum alloy liquid for 20-80 minutes until the aluminum alloy liquid becomes semisolid to obtain a semisolid aluminum alloy slurry, a temperature of the semisolid aluminum alloy slurry being 550-650° C.; andinjecting the semisolid aluminum alloy slurry into a filter die to perform die casting molding at an injection speed of 1.5-2.5 m/s, an injection specific pressure of 30-80 MPa, a pressurization pressure ...

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Номер записи: 78
03-02-2022 дата публикации

METHOD OF MANUFACTURING ALUMINUM ALLOY ARTICLES

Номер: US20220032374A1
Автор: Bianco Robert, Karlen Eric, Mironets Sergey, Wentland William Louis
Принадлежит:

A method for making an article is disclosed. The method involves inputting a digital model of an article into an additive manufacturing apparatus comprising an energy source. The additive manufacturing apparatus applies energy from the energy source to successively applied incremental quantities of a powder to fuse the powder to form the article corresponding to the digital model. The powder includes an aluminum alloy having 2.00-10.00 wt. % cerium, 0.50-2.50 wt. % titanium, 0-3.00 wt. % nickel, 0-0.75 wt. % nitrogen, 0-0.05 wt. % other alloying elements, and the balance of aluminum, based on the total weight of the aluminum alloy. 1. An aluminum alloy comprising greater than 2.00 and less than 4.00 wt. % cerium , 0.50-2.50 wt. % titanium , 0-3.00 wt. % nickel , 0-0.75 wt. % nitrogen , 0-0.05 wt. % other alloying elements , and the balance of aluminum , based on the total weight of the aluminum alloy aluminum alloy.2. The aluminum alloy of claim 1 , wherein the aluminum alloy comprises 0.50-1.50 wt. % titanium claim 1 , based on the total weight of the aluminum alloy.3. The aluminum alloy of claim 1 , wherein the aluminum alloy comprises 1.50-2.50 wt. % titanium claim 1 , based on the total weight of the aluminum alloy.4. The aluminum alloy of claim 1 , wherein the aluminum alloy comprises nickel in an amount up to 3.00 wt. % claim 1 , based on the total weight of the aluminum alloy.5. The aluminum alloy of claim 1 , wherein the aluminum alloy comprises 1.00-3.00 wt. % nickel claim 1 , based on the total weight of the aluminum alloy. The present application is a division of U.S. patent application Ser. No. 15/607,097, filed May 26, 2017, the entire contents of which are incorporated herein by reference.This disclosure relates to additive manufacturing of aluminum articles.Additive manufacturing technologies have been used and proposed for use for fabricating various types of articles from various types of materials. Broadly viewed, additive manufacturing can include ...

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Номер записи: 79
03-02-2022 дата публикации

ALUMINUM ALLOY ARTICLES

Номер: US20220032375A1
Автор: Bianco Robert, Karlen Eric, Mironets Sergey, Wentland William Louis
Принадлежит:

An aluminum alloy comprising greater than 2.00 and less than 4.00 wt. % cerium, 0.25-3.00 wt. % silicon, 0.25-0.75 wt. % magnesium, 0-0.75 wt. % iron, 0-0.05 wt. % other alloying elements, and the balance of aluminum, based on the total weight of the aluminum alloy aluminum alloy. 1. An aluminum alloy comprising greater than 2.00 and less than 4.00 wt. % cerium, 0.25-3.00 wt. % silicon, 0.25-0.75 wt. % magnesium, 0-0.75 wt. % iron, 0-0.05 wt. % other alloying elements, and the balance of aluminum, based on the total weight of the aluminum alloy aluminum alloy The present application is a division of U.S. patent application Ser. No. 15/607,086, filed May 26, 2017, the entire contents of which are incorporated herein by reference.This disclosure relates to additive manufacturing of aluminum articles.Additive manufacturing technologies have been used and proposed for use for fabricating various types of articles from various types of materials. Broadly viewed, additive manufacturing can include any manufacturing process that incrementally adds material to an assembly during fabrication, and has been around in one form or another for many years. Modern additive manufacturing techniques, however, have been blended with three-dimensional computer imaging and modeling in various types to produce shapes and physical features on articles that are not readily produced with conventional molding, shaping, or machining techniques. Such techniques were initially developed using polymer compositions that are fusible or polymerizable in response to a controllable source of light or radiation such as a laser. Three-dimensional articles can be fabricated a layer at a time based on data from a corresponding layer of a three-dimensional computer model, which is generally known as stereolithography. With these techniques, a polymer powder or polymerizable liquid polymer composition is exposed to a source of energy such as a laser to fuse a thermoplastic polymer powder by heating it to a ...

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Номер записи: 80
19-01-2017 дата публикации

METHOD FOR REINFORCING METAL MATERIAL BY MEANS OF GRAPHENE

Номер: US20170014908A1
Автор: Dai Shenglong, Hong Qihu, Lin Zuoming, Liu Dabo, Yan Shaojiu, Yang Cheng
Принадлежит: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALS

A method of reinforcing a metallic material includes adding graphene to an alcohol solution; subjecting the alcohol solution containing graphene to sonication; mixing a metal powder with the alcohol solution containing graphene; milling the metal powder and alcohol solution containing graphene mixture; drying the metal powder and alcohol solution containing graphene mixture to form a composite powder; subjecting the composite powder to a densification process followed by a hot isostatic pressing treatment to form a composite material; and molding the composite material by hot extrusion. 1. A method of reinforcing a metallic material , comprising:adding graphene to an alcohol solution;subjecting the alcohol solution containing graphene to sonication;mixing a metal powder with the alcohol solution containing graphene;milling the metal powder and alcohol solution containing graphene mixture;drying the metal powder and alcohol solution containing graphene mixture to form a composite powder;subjecting the composite powder to a densification process followed by a hot isostatic pressing treatment to form a composite material; andmolding the composite material by hot extrusion.2. The method of claim 1 , wherein the alcohol solution containing graphene is sonicated for about 30 minutes.3. The method of claim 1 , wherein a ratio of mass of metal powder added to a volume of the alcohol containing graphene solution is about 10:1 to 0.5:1.4. The method of claim 1 , wherein the densification process comprises:loading the composite powder into a sheath,vacuumizing the composite powder in the sheath; and{'sup': '−3', 'sealing the sheath by welding with the composite powder inside when the pressure reaches 1.0×10Pa.'}5. The method of claim 1 , wherein the hot isostatic pressing treatment is performed at 480° C. and 110 MPa for two hours.6. The method of claim 1 , wherein the molding by hot extrusion occurs at a temperature of 440° C. to 480° C. The present invention is a method of ...

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Номер записи: 81
19-01-2017 дата публикации

Composite Tungsten Carbide Insert With Heterogeneous Composition And Structure And Manufacturing Method Thereof

Номер: US20170014912A1
Автор: Beibei Chen, Dacheng Luo, Shun Lin
Принадлежит: Shanghai Gogoal Industry Co Ltd

A composite tungsten carbide insert (B, I) with heterogeneous composition and structure has a working part (W) and a non-working part (N). The working part (W) is made of a tungsten carbide material consisting of tungsten carbide powder and cobalt powder or nickel. The non-working part (N) is made of a low density tungsten carbide material consisting of titanium carbide powder, tungsten carbide powder, and cobalt powder or nickel powder. During pressing, the tungsten carbide material for the working part (W) and the low density tungsten carbide material for the non-working part (N) are weighed and added to a steel die successively for molding and then sintering. The non-working part (N) which accounts for most of the overall product volume has low density and less material consumption, and can greatly reduce the raw material costs of the product, significantly improving the performance-cost ratio of the insert (B, I).

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Номер записи: 82
19-01-2017 дата публикации

Stable undercooled metallic particles for engineering at ambient conditions

Номер: US20170014958A1
Автор: CINAR Simge, Tevis Ian D., Thou Martin
Принадлежит:

Undercooled liquid metallic core-shell particles, whose core is stable against solidification at ambient conditions, i.e. under near ambient temperature and pressure conditions, are used to join or repair metallic non-particulate components. The undercooled-shell particles in the form of nano-size or micro-size particles comprise an undercooled stable liquid metallic core encapsulated inside an outer shell, which can comprise an oxide or other stabilizer shell typically formed in-situ on the undercooled liquid metallic core. The shell is ruptured to release the liquid phase core material to join or repair a component(s). 1. A method of joining under ambient conditions , comprising using one or more undercooled liquid metallic core-shell particles in a manner to join one or more metallic or nonmetallic components by rupturing the outer shell of the undercooled core-shell particles to release the undercooled liquid metallic core material to contact the one or more components and solidify.2. The method wherein the liquid metallic material of the undercooled particle core has a melting point Tin the range of 26 to 900° C.3. The method of wherein the chemistry of the one or more metallic components is the same or different from the chemistry of the liquid metallic material of the core.4. The method of for joining said one or more metallic or nonmetallic components that comprise non-particulate material.5. The method of for joining said one or more metallic or nonmetallic components that comprise one or more particulates.6. The method of wherein the one or more particulates comprise other of said liquid metallic core-shell particles that are joined together.7. The method of wherein the particulates are placed in a mold or a container and their outer shells then are ruptured to join the particulates in the mold or container.8. The method of wherein the one or more core-shell particles is/are assembled as a layer between metallic or non-metallic components to be joined and ...

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Номер записи: 83
18-01-2018 дата публикации

Method of Making Machine Component with Aluminum Alloy Under Temperature-Limited Forming Conditions

Номер: US20180015545A1
Автор: Fan Yajun, JENSEN JEFF A., YANG NAN
Принадлежит: CATERPILLAR INC.

A method of making a machine component includes extruding a supply of an aluminum alloy to produce an extrusion. The extrusion is formed under temperature-limited forming conditions of 275° C. or less to produce a blank. The blank is machined to at least one predetermined tolerance to produce the machine component. 1. A method of making a machine component , the method comprising:extruding a supply of an aluminum alloy to produce an extrusion;forming the extrusion under temperature-limited forming conditions of 275° C. or less to produce a blank;machining the blank to at least one predetermined tolerance to produce the machine component.2. The method of claim 1 , further comprising:producing the supply of the aluminum alloy via a rapid solidification process.3. The method of claim 2 , wherein the rapid solidification process comprises melt spinning.4. The method of claim 2 , wherein the rapid solidification process includes producing a ribbon of the aluminum alloy and chopping the ribbon of the aluminum alloy to form a plurality of flakes claim 2 , and wherein the plurality of flakes is extruded to produce the extrusion.5. The method of claim 1 , wherein the aluminum alloy includes aluminum and at least one strengthening metal.6. The method of claim 1 , wherein the aluminum alloy includes aluminum and up to 3.5 percent by weight of at least one element of a first group of elements claim 1 , the first group of elements consisting of Si claim 1 , Sc claim 1 , Ti claim 1 , V claim 1 , Cr claim 1 , Mn claim 1 , Fe claim 1 , Ni claim 1 , Cu claim 1 , Y claim 1 , Zr claim 1 , Mo claim 1 , Ce claim 1 , Nd claim 1 , Er claim 1 , Yb claim 1 , Ta claim 1 , W.7. The method of claim 6 , wherein the aluminum alloy includes between 3.5 percent and 9 percent by weight of at least one element of a second group of elements claim 6 , the second group of elements consisting of Ti and V.8. The method of claim 7 , wherein the aluminum alloy includes between 3.5 percent and 8.5 percent ...

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Номер записи: 84
18-01-2018 дата публикации

Joining Member, Solder Material, Solder Paste, Formed Solder, Flux Coated Material, and Solder Joint

Номер: US20180015572A1
Автор: HAGIWARA Takashi, Ikeda Atsushi, KAWAMATA Yuji, KAWASAKI Hiroyoshi, Kondo Shigeki, Roppongi Takahiro, Sato Isamu, Soma Daisuke, Tsuruta Kaichi
Принадлежит:

Provided herein is a solder material that includes a spherical core that provides space between a joint object and another object to be joined to the joint object and a solder coated layer that has a melting point at which a core layer of the core is not melted. The solder coated layer includes Sn as a main ingredient and 0 to 2 mass % of Ag, and coats the core. The solder coated layer has an average grain diameter of crystal grains of 3 μm or less, and the solder material has a spherical diameter of 1 to 230 μm and a sphericity of 0.95 or more. 114.-. (canceled)15. A solder material characterized in that the solder material comprises:a spherical core that provides space between a joint object and another object to be joined to the joint object; anda solder coated layer that has a melting point at which a core layer of the core is not melted, contains Sn as a main ingredient and 0 to 2 mass % of Ag, and coats the core, whereinthe solder coated layer has an average grain diameter of crystal grains of 3 μm or less, and the solder material has a spherical diameter of 1 to 230 μm and a sphericity of 0.95 or more.16. The solder material according to claim 15 , wherein the solder coated layer contains brightener.17. The solder material according to claim 15 , wherein the core is a spherical material made of an elemental metal claim 15 , an alloy claim 15 , a metal oxide claim 15 , or a mixed metal oxide of Cu claim 15 , Ni claim 15 , Ag claim 15 , Bi claim 15 , Pb claim 15 , Al claim 15 , Sn claim 15 , Fe claim 15 , Zn claim 15 , In claim 15 , Ge claim 15 , Sb claim 15 , Co claim 15 , Mn claim 15 , Au claim 15 , Si claim 15 , Pt claim 15 , Cr claim 15 , La claim 15 , Mo claim 15 , Nb claim 15 , Pd claim 15 , Ti claim 15 , Zr claim 15 , or Mg claim 15 , or a resin.18. The solder material according to claim 15 , wherein the solder coated layer contains at least one selected from a group consisting of Cu claim 15 , Bi claim 15 , In claim 15 , Zn claim 15 , Ni claim 15 , Co ...

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Номер записи: 85
21-01-2016 дата публикации

METHOD AND FACILITY FOR TRANSFORMING A LIQUID-STATE METAL INTO A SOLID-STATE METAL

Номер: US20160016231A1
Автор: Roche Christian, Traub Arthur
Принадлежит: FAI PRODUCTION

Method and installation for converting a metal in the liquid state into a fragmented metal in the solid state. The metal in the liquid state is poured on an upstream portion of a receiving surface () of a first cooled vibrating table (). The metal falls from the downstream end of the first table on an upstream portion of a receiving surface () of a second cooled vibrating table (). The fragmented and solidified metal is discharged at the downstream end of the receiving surface of that second table. A rotary fragmentation roller () may be positioned above a table. The tables comprise an upstream cooling zone () by means of a liquid/gas emulsion and a downstream cooling zone () by means of a liquid.

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Номер записи: 86
21-01-2021 дата публикации

BIOCIDAL METAL PARTICLES, AND METHODS FOR PRODUCTION THEREOF

Номер: US20210015103A1
Автор: PORTMAN Thomas
Принадлежит:

The present disclosure provides biocidal metal particles, and methods for production thereof. The method of producing the biocidal materials includes thermally spraying, into a collection system, a feed material having a metal mixture having from about 2% to about 96 wt. % Cu, about 2 to about 96 wt. % Zn, and about 1 to about 40 wt. % Ni, under conditions to give particles with a size in a range from about 1 to about 50 microns. The metal particles are collected and are characterized in that they have an amorphous solid structure and exhibit enhanced biocidal properties. 1. A method of producing biocidal metal particles , comprising:thermally spraying, into a collection system, a feed material having a metal mixture comprising about 2% to about 96 wt. % Cu, about 2 to about 96 wt. % Zn, and about 1 to about 40 wt. % Ni, under conditions to give particles with a size in a range from about 1 to about 50 microns;collecting the sprayed metal particles, andseparating the sprayed metal particles from the collection system, wherein said metal particles separated from the collection system are characterized in that they have an amorphous solid structure and exhibit biocidal properties.2. The method according to claim 1 , wherein the feed material has a metal mixture comprising about 62.5 to about 66 wt. % Cu claim 1 , about 16 to about 18 wt. % Zn claim 1 , and about 17 to about 19 wt. % Ni.3. The method according to claim 1 , wherein the feed material has a metal mixture comprising about 65 wt. % Cu claim 1 , 17 wt. % Zn claim 1 , and 18 wt. % Ni.4. The method according to claim 3 , including trace amounts of Iron (Fe) and Manganese (Mn) of up to about 0.5% of each.5. The method according to claim 3 , wherein the produced metal particles are characterized by having a composition as measured by EDX to be about 25.49 wt. % Cu claim 3 , about 67.86 wt. % Zn claim 3 , and about 6.66 wt. % Ni.6. The method according to claim 3 , wherein the produced metal particles are ...

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Номер записи: 87
21-01-2016 дата публикации

CORROSION RESISTANT ARTICLE AND METHODS OF MAKING

Номер: US20160017464A1
Автор: DiDomizio Richard, Huang Shenyan, Rebak Raul Basilio
Принадлежит:

An article and method of forming the article are disclosed. The article has a surface comprising a nanostructured ferritic alloy. The surface includes a plurality of nanofeatures that include complex oxides of yttrium and titanium disposed in an iron-bearing alloy matrix. The iron-bearing alloy matrix at the surface includes about 5 weight percent to about 30 weight percent of chromium, and about 0.1 weight percent to about 10 weight percent of molybdenum. Further, a concentration of a chi phase or a sigma phase in the nanostructured ferritic alloy at the surface is less than about 5 volume percent. The method generally includes the steps of milling, thermo-mechanically consolidating, annealing, and then cooling at a rate that hinders the formation of chi and sigma phases in the nanostructured ferritic alloy at the surface. 1. An article , comprising:a surface comprising a nanostructured ferritic alloy, the alloy comprising a plurality of nanofeatures disposed in an iron-bearing alloy matrix, the plurality of nanofeatures comprising complex oxide particles, wherein the complex oxide particles comprise yttrium and titanium;wherein the matrix at the surface comprises about 5 weight percent to about 30 weight percent chromium, and about 0.1 weight percent to about 10 weight percent molybdenum; andwherein a concentration of a chi phase or a sigma phase in the nanostructured ferritic alloy at the surface is less than about 5 volume percent.2. The article of claim 1 , wherein a total concentration of the chi phase and the sigma phase is less than about 5 volume percent.3. The article of claim 1 , wherein a concentration of titanium in the nanoferritic alloy surface is in a range from about 0.15 wt % to about 2 wt %.4. The article of claim 1 , wherein the matrix phase comprises chromium in an amount from about 10 weight percent to about 30 weight percent.5. The article of claim 1 , wherein the matrix phase comprises molybdenum in an amount from about 3 weight percent to ...

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Номер записи: 88
21-01-2021 дата публикации

Spherical Tantalum-Titanium Alloy Powder, Products Containing The Same, And Methods Of Making The Same

Номер: US20210016348A1
Автор: Aamir ABID, Craig Sungail
Принадлежит: Global Advanced Metals USA Inc

A tantalum-titanium alloy powder that is highly spherical is described. The alloy powder can be useful in additive manufacturing and other uses. Methods to make the alloy powder are further described as well as methods to utilize the alloy powder in additive manufacturing processes. Resulting products and articles using the alloy powder are further described.

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Номер записи: 89
17-01-2019 дата публикации

COMPOSITIONAL VARIATIONS OF TUNGSTEN TETRABORIDE WITH TRANSITION METALS AND LIGHT ELEMENTS

Номер: US20190017154A1
Автор: Kaner Richard B., Lech Andrew T., Mohammadi Reza, Tolbert Sarah H., Xie Miao
Принадлежит: The Regents of the University of California

A composition includes tungsten (W); at least one element selected form the group of elements consisting of boron (B), beryllium (Be) and silicon (Si); and at least one element selected from the group of elements consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), ruthenium (Ru), hafnium (Hf), tantalum (Ta), rhenium (Re), osmium (Os), iridium (Ir), lithium (Li) and aluminum (Al). The composition satisfies the formula WMXwherein X is one of B, Be and Si; M is at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Hf, Ta, Re, Os, Ir, Li and Al; x is at least 0.001 and less than 0.999; and y is at least 4.0. A tool is made from or coated with this composition. 123.-. (canceled)24. A method for preparing a composition comprising:tungsten (W);at least one element selected from the group of elements consisting of boron (B), beryllium (Be) and silicon (Si); andat least one element selected from the group of elements consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), ruthenium (Ru), hafnium (Hf), tantalum (Ta), osmium (Os), iridium (Ir), lithium (Li) and aluminum (Al); {'br': None, 'sub': 1-x', 'x', 'y, 'WMX'}, 'wherein said composition satisfies the formulawherein X is at least one of B, Be and Si;M is at least one of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Hf, Ta, Os, Ir, Li and Al;x is at least 0.001 and less than 0.999; andy is at least 4.0;the method comprising:a) mixing together elemental powders of W, X, and M to form a mixture;b) optionally pressing the mixture into a pellet; andc) heating the mixture or pellet.25. The method of claim 24 , wherein X is B.26. The method of claim 24 , wherein M is one of Ta claim 24 , Mn claim 24 , Cr claim 24 , Ta and Mn claim 24 , or Ta and Cr.27. The ...

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Номер записи: 90
19-01-2017 дата публикации

R-T-B BASED SINTERED MAGNET AND METHOD FOR PRODUCING SAME

Номер: US20170018342A1
Автор: FUKAGAWA Tomoki, Furusawa Daisuke, NISHIUCHI Takeshi, NOZAWA Noriyuki, SAKASHITA Shinichiroh
Принадлежит: HITACHI METALS, LTD.

An R-T-B based sintered magnet has a composition represented by the following formula (1) which satisfies the following inequality expressions (2) to (9): 1. An R-T-B based sintered magnet , wherein the composition represented by the following formula (1) satisfies the following inequality expressions (2) to (9):{'br': None, 'i': u', 'w', 'x', 'z', 'v', 'q', 'g', 'j, 'RBGaAlCoTiFeM\u2003\u2003(1)'} {'br': None, 'i': 'u≦', '0≦32.0\u2003\u2003(2)'}, '(R is at least one of rare-earth elements and indispensably includes Nd, M is an element except for R, B, Ga, Al, Co, Ti, and Fe, and u, w, x, z, v, q, g, and j are expressed in terms of % by mass)'} [{'br': None, 'i': 'w≦', '0.93≦1.00\u2003\u2003(3)'}, {'br': None, 'i': 'x≦', '0.3≦0.8\u2003\u2003(4)'}, {'br': None, 'i': 'z≦', '0.05≦0.5\u2003\u2003(5)'}, {'br': None, 'i': 'v≦', '0≦3.0\u2003\u2003(6)'}, {'br': None, 'i': 'q≦', '0.15≦0.28\u2003\u2003(7)'}, {'br': None, 'i': 'g≦', '60.42≦69.57\u2003\u2003(8)'}, {'br': None, 'i': 'j≦', '0≦2.0\u2003\u2003(9)'}], '(heavy rare-earth elements RH account for 10% by mass or less of the R-T-B based sintered magnet)'} [{'br': None, 'i': g′+v′+z', 'w′−', 'q, '0.06≦(′)−(14×(2×′))\u2003\u2003(A)'}, {'br': None, 'i': g′+v′+z', 'w′−q, '0.10≧(′)−(14×(′))\u2003\u2003(B)'}], 'and, when the value obtained by dividing g by the atomic weight of Fe is g′, the value obtained by dividing v by the atomic weight of Co is v′, the value obtained by dividing z by the atomic weight of Al is z′, the value obtained by dividing w by the atomic weight of B is w′, and the value obtained by dividing q by the atomic weight of Ti is q′, the following inequality expressions (A) and (B) are satisfied2. The R-T-B based sintered magnet according to claim 1 , wherein 0.18≦q≦0.28.3. The R-T-B based sintered magnet according to claim 1 , which has a structure in which:{'sub': 2', '14, 'an RTB compound (R is at least one of rare-earth elements and indispensably includes Nd, and T is at least one of transition metal ...

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Номер записи: 91
18-01-2018 дата публикации

Soft magnetic metal powder and dust core

Номер: US20180019043A1
Автор: Katsushi Yasuhara, Koji Miura, Ryoma NAKAZAWA, Tomohisa Mitose
Принадлежит: TDK Corp

A soft magnetic metal powder includes a plurality of soft magnetic metal particles composed of an Fe—Co based alloy. The Fe—Co based alloy includes 0.50 mass % or more and 8.00 mass % or less of Co and a remaining part composed of Fe and an inevitable impurity. A soft magnetic metal powder includes a plurality of soft magnetic metal particles composed of an Fe—Co based alloy. The Fe—Co based alloy includes 0.50 mass % or more and 8.00 mass % or less of Co, 0.01 mass % or more and 8.00 mass % or less of Si, and a remaining part composed of Fe and an inevitable impurity. The present invention can provide a soft magnetic metal powder or so having a favorable corrosion resistance.

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Номер записи: 92
28-01-2016 дата публикации

SLURRY RECYCLING METHOD, PRODUCING METHOD OF RARE EARTH SINTERED MAGNET AND SLURRY RECYCLING APPARATUS

Номер: US20160023276A1
Автор: MOCHIZUKI Mitsuaki
Принадлежит: HITACHI METALS, LTD.

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. 1. A slurry recycling method comprising 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.2. The slurry recycling method according to claim 1 , wherein a particle diameter of the alloy powder for a rare earth sintered magnet in the recycled slurry which is recycled by the crushing step is not changed from a particle diameter of the alloy powder for the rare earth sintered magnet before it is recycled by the crushing step.3. The slurry recycling method according to claim 1 , wherein the crushing step includes a filtering step of removing foreign matters.4. A producing method of a rare earth sintered magnet comprising a crushing step of crushing claim 1 , in mineral oil and/or synthetic fluid claim 1 , 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 claim 1 , and recycling the crushed molded body into slurry; anda recycled slurry sintering step of wet molding, ...

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Номер записи: 93
28-01-2016 дата публикации

ATOMIZER FOR IMPROVED ULTRA-FINE POWDER PRODUCTION

Номер: US20160023277A1
Автор: Anderson Iver E., Heidloff Andrew J., Rieken Joel R.
Принадлежит:

A concentric ring gas atomization nozzle with isolated gas supply manifolds is provided for manipulating the close-coupled atomization gas structure to improve the yield of atomized powders. 1. Gas atomizing nozzle for atomizing a melt , comprising a first annular array of a plurality of first discrete gas jet orifices for atomizing the melt , a first gas supply manifold for supplying pressurized gas to the first discrete gas jet orifices , a second annular array of a plurality of second discrete gas jet orifices arranged outwardly about the first annular array , and a second gas supply manifold isolated from the first gas supply manifold for supplying pressurized gas to the second annular array.2. The nozzle of wherein the first gas supply manifold and the second gas manifold supply atomizing gas to the first annular array and second annular array in a manner to control the atomizing gas structure.3. The nozzle of wherein the first gas supply manifold and the second gas manifold have different gas supply pressures.4. The nozzle of wherein the first supply manifold and second supply manifold have different atomizing gas compositions.5. The nozzle of wherein the first supply manifold and second supply manifold have the same atomizing gas.6. A method of gas atomizing a melt to produce atomized powder claim 2 , comprising discharging a melt claim 2 , atomizing the melt using atomizing gas jets discharged from a first annular array of a plurality of first discrete gas jet orifices and supplied from a first gas supply manifold and using atomizing gas jets discharged from a second annular array of a plurality of second discrete gas jet orifices arranged outwardly of the first annular array and supplied from a second gas supply manifold that is isolated from the first gas supply manifold.7. The method of that provides a closed wake atomizing gas structure.8. The method of wherein the closed wake atomizing gas structure has a truncated recirculation zone.9. The method of ...

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Номер записи: 94
26-01-2017 дата публикации

METHOD FOR THE PRODUCTION OF A MOLDED BLANK FROM METAL POWDER

Номер: US20170021422A1
Автор: STEGER HEINRICH
Принадлежит:

Disclosed is a method for producing a molded blank from metal powder using a gel-casting process, wherein a starting mixture for the gel-based process is made by mixing the metal powder with a liquid and a binder, the starting mixture being thoroughly mixed in a vacuum. 1. A method for producing a molded blank from metal powder using a gel-casting process , wherein a starting mixture for the gel-casting process is made by mixing the metal powder with a liquid and a binder , wherein the starting mixture is thoroughly mixed in a vacuum.2. The method according to claim 1 , wherein the relationship of the weight percentage of liquid to binder in the starting mixture is between 95 to 5 and 99.9 to 0.1.3. The method according to claim 1 , wherein the relationship of the weight percentage of liquid and binder to metal powder in the starting mixture is between 5 to 95 and 20 to 80.4. The method according to claim 1 , wherein the binder is blended with the liquid to a liquid-binder mixture before this liquid-binder mixture is blended with the metal powder.5. The method according to claim 1 , wherein metal powder is used which is based on cobalt claim 1 , chrome claim 1 , molybdenum claim 1 , wolfram claim 1 , carbide claim 1 , beryllium claim 1 , stainless steel claim 1 , titanium claim 1 , aluminum claim 1 , copper claim 1 , tin or mixtures thereof.6. The method according to claim 1 , wherein claim 1 , preferably distilled claim 1 , water is used as liquid.7. The method according to claim 1 , wherein the binder contains cellulose claim 1 , preferably methyl cellulose.8. The method according to claim 1 , wherein a chemical auxiliary means for the mixing claim 1 , preferably a dispersant claim 1 , is admixed to the starting mixture.9. The method according to claim 1 , wherein the thoroughly mixing in a vacuum is effected in a vacuum chamber claim 1 , wherein a low pressure claim 1 , preferably between 25 and 40 millibar claim 1 , prevails in the vacuum chamber.10. The method ...

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Номер записи: 95
26-01-2017 дата публикации

PRODUCTION OF SUBSTANTIALLY SPHERICAL METAL POWDERS

Номер: US20170021425A1
Автор: Fang Zhigang Z., Sun Pei, Xia Yang, ZHANG YING
Принадлежит:

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. 1. A method for producing a substantially spherical metal or metal alloy powder comprising:providing a particulate source metal including a primary particulate and having an average starting particle size;mixing the particulate source metal with a binder and an optional solvent to form a slurry;granulating the slurry to form substantially spherical granules, wherein each granule comprises an agglomeration of particulate source metal;debinding the granules at a debinding temperature to reduce a binder content of the granules forming debinded granules;at least partially sintering the debinded granules at a sintering temperature such that particles within each granule fuse together to form partially or fully sintered granules;recovering the sintered granules to form the substantially spherical metal or metal alloy powder.2. The method of claim 1 , wherein the substantially spherical metal powder has an average final particle size from about 1 to about 1000 micrometers.3. The method of claim 1 , wherein the substantially spherical metal powder is selected from the group consisting of titanium claim 1 , zirconium claim 1 , hafnium claim 1 , ...

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Номер записи: 96
25-01-2018 дата публикации

TITANIUM-BASED POWDER, AND INGOT AND SINTERED ARTICLE THEREOF

Номер: US20180021854A1
Автор: FUKADA Nobuo, KANOU Osamu, TAKENAKA Shigehisa
Принадлежит: TOHO TITANIUM CO., LTD.

Provided are a titanium-based powder excellent in fluidity and shape retention property, and an ingot and a sintered article obtained using the titanium-based powder as a material. The titanium-based powder has an average circularity of 0.815 or more and less than 0.870, a CV value of particle sizes of 22 or more and 30 or less, and an angle of repose of 29 degrees or more and 36 degrees or less. 1. A titanium-based powder , which has an average circularity of 0.815 or more and less than 0.870 , a CV value of particle sizes of 22 or more and 30 or less , and an angle of repose of 29 degrees or more and 36 degrees or less.2. The titanium-based powder according to claim 1 , which is a titanium-based powder containing a spherical titanium-based powder and a non-spherical titanium-based powder.3. The titanium-based powder according to claim 1 , which contains spherical titanium-based particles in a number ratio of 35% to 80% claim 1 , and contains non-spherical titanium-based particles in a number ratio of 20% to 65%.4. The titanium-based powder according to claim 2 , which is a titanium-based powder obtained by mixing a spherical titanium-based powder and a non-spherical titanium-based powder.5. The titanium-based powder according to claim 4 , wherein the spherical titanium-based powder is a titanium-based powder produced by an atomization method claim 4 , a titanium-based powder produced by a P-REP method claim 4 , a titanium-based powder obtained by subjecting a titanium-based powder produced by an HDH method to a plasma processing claim 4 , a titanium-based powder obtained by subjecting a titanium-based powder produced by a pulverization method to a plasma processing claim 4 , or a titanium-based powder obtained by mixing two or more thereof.6. The titanium-based powder according to claim 4 , wherein the non-spherical titanium-based powder is a titanium-based powder produced by an HDH method claim 4 , a titanium-based powder produced by a pulverization method claim ...

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Номер записи: 97
25-01-2018 дата публикации

METHOD OF PREPARING TUNGSTEN METAL MATERIAL AND TUNGSTEN TARGET WITH HIGH PURITY

Номер: US20180021857A1
Автор: BOR HUI-YUN, FUNG KUAN-ZONG, LIN CHIA-SHIH, NIEH CUO-YO, WEI CHAO-NAN
Принадлежит:

A method of preparing a tungsten metal material with high purity, comprising the steps of (A) providing a tungsten metal powder to mix with a metal nitrate to form a mixed powder slurry; (B) ball-grinding the mixed powder slurry to obtain a uniformly mixed powder; (C) sintering the uniformly mixed powder to obtain the tungsten metal material with high purity. Accordingly, the tungsten metal material with purity more than 99.9% can be prepared, so as to prepare the tungsten metal target. 1. A method of preparing a tungsten metal material with high purity , comprising the steps of:(A) providing a tungsten metal powder to mix with a metal nitrate to form a mixed powder slurry;(B) ball-grinding the mixed powder slurry to obtain a uniformly mixed powder;(C) sintering the uniformly mixed powder to obtain the tungsten metal material with high purity.2. The method of preparing a tungsten metal material with high purity as claimed in claim 1 , wherein the purity of the tungsten metal material with high purity is more than 99.9% claim 1 , and the density thereof is more than 99% of the density of pure tungsten.3. The method of preparing a tungsten metal material with high purity as claimed in claim 2 , wherein the tungsten metal material with high purity is used to prepare a tungsten metal target.4. The method of preparing a tungsten metal material with high purity as claimed in claim 3 , wherein before the sintering step (C) claim 3 , the uniformly mixed powder is further pressed and shaped to a desired shape.5. The method of preparing a tungsten metal material with high purity as claimed in claim 1 , wherein the metal nitrate is selected from nickel nitrate claim 1 , ferric nitrate claim 1 , and a mixture thereof.6. The method of preparing a tungsten metal material with high purity as claimed in claim 1 , wherein a solvent is added to the mixed powder slurry in the ball-grinding step (B) claim 1 , and the solvent is oleic acid.7. The method of preparing a tungsten metal ...

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Номер записи: 98
25-01-2018 дата публикации

Method of manufacturing metal articles

Номер: US20180021878A1
Автор: Eric Karlen, William Louis Wentland
Принадлежит: Hamilton Sundstrand Corp

A method for making an article is disclosed. According to the method, a digital model of the article is generated. The digital model is inputted into an additive manufacturing apparatus comprising an energy source. The additive manufacturing apparatus applies energy from the energy source to successively applied incremental quantities of a powder to fuse the powder to form the article corresponding to the digital model. The powder particles individually include a composite core including a first phase of a first metal and a second phase of a ceramic. A first shell including a second metal is disposed over the core.

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Номер записи: 99
10-02-2022 дата публикации

LITHIUM-CARBON COMPOSITE MATERIAL AND PREPARATION THEREOF

Номер: US20220040761A1
Автор: Huang Biying, Huang Richard Brian, Tang Tianwen
Принадлежит:

A lithium-carbon composite material and a preparation method thereof. The method includes preparation of a micron lithium powder dispersion, adjustment of the solid content of the micron lithium powder dispersion, preparation of a lithium-carbon mixture, and preparation of the lithium-carbon composite material. 1. A method of preparing a lithium-carbon composite material , comprising:(S1) dispersing metal lithium in an organic solvent through liquid phase buoyancy to obtain a micron lithium powder dispersion;(S2) allowing the micron lithium powder dispersion obtained in step (S1) to stand, and removing a part of the organic solvent from the micron lithium powder dispersion such that a lithium powder solid content of the micron lithium powder dispersion is 25%-35%;(S3) adding carbon powder to the micron lithium powder dispersion obtained through step (S2) followed by cyclical grinding using a sand mill to disperse the carbon powder and lithium powder evenly to obtain a mixed system, wherein a molar ratio of Li to C is (3-4):1; and(S4) allowing the organic solvent in the mixed system to evaporate such that the carbon powder in the mixed system is carried by evaporated organic solvent and then settles to cover a surface of the lithium powder to obtain the lithium-carbon composite material.2. The method of claim 1 , wherein the steps (S1)-(S4) are all performed in an argon atmosphere.3. The method of claim 2 , wherein the step (S1) is performed through steps of:cutting the metal lithium into pieces followed by continuous feeding to a liquid-phase dispersion machine with the organic solvent and stirring, wherein a weight ratio of the metal lithium to the organic solvent is 3.55:96.45; heating, by a heating device of the liquid-phase dispersion machine, a mixture of the metal lithium and the organic solvent to 180° C.-190° C. under stirring such that the metal lithium melts to form uniformly dispersed micron lithium droplets in the organic solvent; allowing a mixture of ...

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Номер записи: 100