公开(公告)号：US20020150495A1

公开(公告)日：2002-10-17

申请号：US09803518

申请日：2001-03-09

Inventor： Raymond E. Serafini JR.

IPC: B22F003/24

CPC classification number: B22F3/1028 ,  B22F2999/00 ,  C21D1/613 ,  C21D9/0062 ,  B22F2203/01 ,  B22F3/1007 ,  B22F2201/013 ,  B22F2201/12

Abstract: A method for metal processing is provided in which a cooling atmosphere comprising hydrogen is used for accelerated cooling of a processed metal part in a furnace, resulting in improved properties for the metal part. A sintering furnace is also provided and comprises a means for inhibiting gas flows between a heating zone and a cooling zone of the furnace.

Abstract translation: 提供了一种用于金属加工的方法，其中使用包含氢气的冷却气氛来加速冷却炉中加工的金属部件，从而改善了金属部件的性能。 还提供了烧结炉，并且包括用于抑制加热区和炉的冷却区之间的气流的装置。

公开(公告)号：US20020125591A1

公开(公告)日：2002-09-12

申请号：US09727474

申请日：2000-12-04

Inventor： Scot Eric Jaynes ,  Lawrence Edward Schottke ,  James Joseph Volk ,  Robert Bruce Davis

IPC: B29B009/00

CPC classification number: B22F9/082 ,  B01D53/02 ,  B22F2009/0832 ,  B22F2009/0896 ,  B22F2998/00 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/10

Abstract: A process for producing atomized powder, such as a metal powder, using a recirculating atomization gas, such as helium, and the apparatus used for producing the atomized powder

Abstract translation: 使用诸如氦的再循环雾化气体生产雾化粉末的方法，例如金属粉末，以及用于生产雾化粉末的装置

公开(公告)号：US20010035239A1

公开(公告)日：2001-11-01

申请号：US09810464

申请日：2001-03-19

Inventor： Teruhiko Imoto ,  Tadashi Ise ,  Yohei Hirota ,  Takayuki Murakami

IPC: C22F001/00

CPC classification number: H01M4/383 ,  B22F1/0088 ,  B22F2999/00 ,  C01B3/0057 ,  Y02E60/327 ,  Y10S420/90 ,  B22F2201/013

Abstract: The method of manufacturing a hydrogen-absorbing alloy electrode comprises: a step of reducing an oxide or hydroxide residing on the surface of a hydrogen-absorbing alloy particle while the alloy particle is held in an atmosphere of a hydrogen gas maintained at a temperature where absorbing of the hydrogen gas does not substantially occur; a step of naturally cooling atmosphere from the temperature where absorbing of the hydrogen gas does not substantially occur to the temperature where the equilibrium hydrogen pressure of the hydrogen-absorbing alloy is equal to the hydrogen pressure in the atmosphere of the hydrogen gas and thereafter vacuum-evacuating the atmosphere of the hydrogen gas so that the hydrogen-absorbing alloy particle is cooled to room temperature while the hydrogen gas is exhausted; a step of exhausting the hydrogen gas and cooling the atmosphere to room temperature and thereafter introducing at least one kind of gas selected from the group consisting of argon, nitrogen and carbon dioxide into the atmosphere, thereby returning the atmosphere to normal atmospheric pressure; and a step of immersing the hydrogen-absorbing alloy particle thus acquired in solution containing an oxidation inhibiting agent.

Abstract translation: 制造吸氢合金电极的方法包括：将合金粒子保持在保持在吸收剂的温度的氢气氛中的情况下，还原存在于吸氢合金粒子表面的氧化物或氢氧化物的工序 的氢气基本上不发生; 从吸氢合金的平衡氢压等于氢气气氛中的氢气压力的温度基本上不发生氢气吸收的温度自然冷却气氛的步骤， 排出氢气的气氛，使氢吸收合金粒子在氢气排出的同时冷却至室温; 将氢气排出并将其冷却至室温，然后将从氩，氮，二氧化碳组成的组中选出的至少一种气体导入大气中，使气氛回到正常大气压下的工序; 以及将由此获得的吸氢合金粒子浸渍在含有氧化抑制剂的溶液中的工序。

公开(公告)号：US20240351104A1

公开(公告)日：2024-10-24

申请号：US18701728

申请日：2022-10-18

Applicant: Pometon SPA

Inventor： Ivan LORENZON ,  Ekaterina MAKAROVA ,  Giovanni BELLIN ,  Gianfranco VIDOTTO

IPC: B22F9/22 ,  B22F9/04

CPC classification number: B22F9/22 ,  B22F9/04 ,  B22F2009/043 ,  B22F2201/013 ,  B22F2301/35 ,  B22F2998/10 ,  B22F2999/00

Abstract: A process for obtaining metal powders, preferentially iron powder, for burners to produce energy is described. The metal powders are obtained from metal oxide powders, preferentially iron oxide powders. The method comprises a step of preparing, during which the metal oxide powders, obtained during the combustion of the metal powders in burners, are prepared, a step of reduction, during which the metal oxide powders are reduced in a treatment chamber having an atmosphere comprising hydrogen and at a temperature of at least 900° C., preferentially at least 1000° C., obtaining reduced metal oxides, preferentially reduced iron oxides; and a step of pulverization, during which the reduced metal oxides are pulverized to obtain the metal powders.

公开(公告)号：US12103087B2

公开(公告)日：2024-10-01

申请号：US16587507

申请日：2019-09-30

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Rongyue Wang ,  Krzysztof Z. Pupek ,  Vojislav Stamenkovic ,  Trevor L. Dzwiniel

IPC: B01J23/89 ,  B22F9/24 ,  B22F1/054 ,  B82Y30/00

CPC classification number: B22F9/24 ,  B01J23/892 ,  B22F1/054 ,  B22F2301/25 ,  B22F2998/10 ,  B82Y30/00 ,  B22F2999/00 ,  B22F1/17 ,  B22F2201/013 ,  B22F2201/11 ,  B22F1/142 ,  B22F2998/10 ,  B22F9/24 ,  B22F1/145 ,  B22F1/142

Abstract: A method for synthesis of platinum nanoparticles by continuous flow using large flow segments. The nanoparticles are monodispersed and can undergo acid leaching to form platinum catalyst, such as PtNi or PtCo catalyst material.

公开(公告)号：US12091732B2

公开(公告)日：2024-09-17

申请号：US17640736

申请日：2020-09-07

Applicant: TECHNOVA INC.

Inventor： Akito Takahashi ,  Joji Hachisuka ,  Yuichi Furuyama

IPC: B32B5/16 ,  B22F1/054 ,  B22F1/08 ,  B22F1/18 ,  B22F9/00 ,  B22F9/02 ,  B22F9/04 ,  C22C16/00 ,  B22F1/17

CPC classification number: C22C16/00 ,  B22F1/054 ,  B22F1/08 ,  B22F1/18 ,  B22F9/002 ,  B22F9/023 ,  B22F9/04 ,  B32B5/16 ,  B22F1/17 ,  B22F2009/049 ,  B22F2201/013 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2301/205 ,  B22F2301/25 ,  B22F2303/01 ,  B22F2998/10 ,  B22F9/04 ,  B22F9/023 ,  B22F1/142

Abstract: A nanocomposite metal material includes a carrier formed of Zr and two-element metal particles supported on the carrier. The two-element metal is formed of Cu and Ni, and a degree of oxidation of the carrier is more than 31% and 100% or less. In a case where the nanocomposite metal material is disposed in a reaction furnace of a thermal reactor, the inside of the reaction furnace is brought into a vacuum state, and the inside of the reaction furnace is heated to a temperature range of 250° C. or higher and 350° C. or lower with a heating mechanism included in the thermal reactor while supplying at least one of hydrogen gas and deuterium gas into the reaction furnace, excessive heat of the nanocomposite metal material is 100 W/kg or more.

公开(公告)号：US20240261854A1

公开(公告)日：2024-08-08

申请号：US18432569

申请日：2024-02-05

Applicant: IperionX Limited

Inventor： Anastasios ARIMA ,  Hyrum LEFLER

IPC: B22F3/16 ,  B22F1/00 ,  B22F1/065 ,  B22F10/14 ,  B22F10/28

CPC classification number: B22F3/16 ,  B22F1/065 ,  B22F1/09 ,  B22F10/14 ,  B22F10/28 ,  B22F2201/013 ,  B22F2301/205 ,  B22F2301/255 ,  B22F2304/10

Abstract: A method of making a gold-titanium alloy can include preparing a powder mixture of gold source powder and titanium source powder. The method can also include consolidating the powder mixture to form a consolidated body. The consolidated body can be at least partially sintered in vacuum or a reducing atmosphere to for a gold-titanium alloy sintered article.
Another example method of producing a gold-titanium alloy can include preparing a composite metal powder having composite granules including a gold source powder and a titanium source powder within the composite granules. The composite metal powder can be consolidated to form a consolidated body. The consolidated body can be at least partially sintered to form a sintered article. The method can also include deoxygenating at least one of the composite metal powder, the consolidated body, or the sintered article at a deoxygenation temperature under a hydrogen-containing atmosphere to reduce an oxygen content.

公开(公告)号：US12049684B2

公开(公告)日：2024-07-30

申请号：US18196614

申请日：2023-05-12

Applicant: Dowa Electronics Materials Co., Ltd.

Inventor： Masahiro Yoshida ,  Kenichi Inoue ,  Atsushi Ebara ,  Yoshiyuki Michiaki ,  Takahiro Yamada

IPC: B22F1/10 ,  B22F1/05 ,  B22F9/08 ,  C22C1/04 ,  H01B1/22 ,  B22F1/00

CPC classification number: C22C1/0425 ,  B22F1/05 ,  B22F1/10 ,  B22F9/082 ,  H01B1/22 ,  B22F1/09 ,  B22F2009/0828 ,  B22F2009/0832 ,  B22F2009/086 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/04 ,  B22F2201/11 ,  B22F2203/13 ,  B22F2301/10 ,  B22F2303/01 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  B22F1/10 ,  C22C1/0425 ,  B22F1/05

Abstract: There are provided an inexpensive copper powder, which has a low content of oxygen even it has a small particle diameter and which has a high shrinkage starting temperature when it is heated, and a method for producing the same. While a molten metal of copper heated to a temperature, which is higher than the melting point of copper by 250 to 700° C. (preferably 350 to 650° C. and more preferably 450 to 600° C.), is allowed to drop, a high-pressure water is sprayed onto the heated molten metal of copper in a non-oxidizing atmosphere (such as an atmosphere of nitrogen, argon, hydrogen or carbon monoxide) to rapidly cool and solidify the heated molten metal of copper to produce a copper powder which has an average particle diameter of 1 to 10 μm and a crystallite diameter Dx(200) of not less than 40 nm on (200) plane thereof, the content of oxygen in the copper powder being 0.7% by weight or less.

公开(公告)号：US20240194381A1

公开(公告)日：2024-06-13

申请号：US18582799

申请日：2024-02-21

Applicant: Noveon Magnetics Inc.

Inventor： Miha Zakotnik

IPC: H01F1/057 ,  B22F1/052 ,  B22F1/054 ,  B22F1/17 ,  B22F3/10 ,  B22F3/24 ,  B22F5/00 ,  B22F9/04 ,  B22F9/06 ,  C22C33/02 ,  C22C38/00 ,  H01F41/02

CPC classification number: H01F1/0577 ,  B22F1/052 ,  B22F1/17 ,  B22F3/1035 ,  B22F3/24 ,  B22F5/00 ,  B22F9/04 ,  C22C33/02 ,  C22C33/0207 ,  C22C38/00 ,  B22F1/054 ,  B22F1/056 ,  B22F2003/248 ,  B22F2009/044 ,  B22F9/06 ,  B22F2201/013 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2207/07 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  H01F41/0293

Abstract: The present disclosure is directed to methods of preparing permanent magnets having improved coercivity and remanence, the method comprising: (a) homogenizing a first population of particles of a first GBM alloy with a second population of particles of a second alloy to form a composite alloy preform, the first GBM alloy being represented by the formula: ACbRxCoyCudMz, the second alloy being represented by the formula G2Fe14B, where AC, R, M, G, b, x, y, and z are defined; (b) heating the composite alloy preform particles to form mixed alloy particles; (c) compressing the mixed alloy particles, under a magnetic field of a suitable strength to align the magnetic particles with a common direction of magnetization and inert atmosphere, to form a green body; (d) sintering the green body; and (e) annealing the sintered body. Embodiments include magnets comprising neodymium-iron-boron core alloys, including Nd2Fe14B.

公开(公告)号：US20240161975A1

公开(公告)日：2024-05-16

申请号：US18506354

申请日：2023-11-10

Applicant: NICHIA CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hisashi MAEHARA ,  Tomonori INUZUKA ,  Masaaki ITO ,  Motoki HIRAOKA

IPC: H01F41/02 ,  B22F1/052 ,  B22F1/142 ,  B22F1/145 ,  B22F1/16 ,  B22F3/14 ,  B22F3/16 ,  B22F3/24 ,  B22F9/22 ,  H01F1/059

CPC classification number: H01F41/0266 ,  B22F1/052 ,  B22F1/142 ,  B22F1/145 ,  B22F1/16 ,  B22F3/14 ,  B22F3/16 ,  B22F3/24 ,  B22F9/22 ,  H01F1/059 ,  H01F41/0273 ,  B22F2003/248 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2302/45 ,  B22F2998/10 ,  B22F2999/00

Abstract: A method of producing a SmFeN-based rare earth magnet, the method including: heat-treating a SmFeN-based anisotropic magnetic powder having a surface coated with a phosphate at a temperature of at least 80° C. but lower than 150° C.; mixing the heat-treated SmFeN-based anisotropic magnetic powder and a Zn-containing modifier powder by dispersion using resin-coated metal media or resin-coated ceramic media to obtain a powder mixture containing the SmFeN-based anisotropic magnetic powder and the modifier powder; compacting the powder mixture in a magnetic field to obtain a magnetic field compact; and pressure-sintering the magnetic field compact to obtain a sintered compact.