公开(公告)号：US20240363270A1

公开(公告)日：2024-10-31

申请号：US18376273

申请日：2023-10-03

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

发明人： Bo Kyeong Han ,  Sae Mee Yun ,  Kang Mo Koo ,  Yong Ho Choa ,  Byung Kwon Jang

IPC分类号： H01F1/057 ,  B22F1/05 ,  B22F3/02 ,  B22F9/04 ,  B22F9/22 ,  C22C33/02 ,  C22C38/00 ,  H01F41/02

CPC分类号： H01F1/0571 ,  B22F1/05 ,  B22F3/02 ,  B22F9/04 ,  B22F9/22 ,  C22C33/0235 ,  C22C38/005 ,  H01F41/0253 ,  B22F2201/013 ,  B22F2201/10 ,  B22F2301/355 ,  B22F2304/05 ,  B22F2998/10 ,  C22C2202/02

摘要： A method of preparing a magnet powder, and a magnet powder, are disclosed. The method includes: preparing a neodymium praseodymium (Nd, Pr) mixed oxide containing Nd and Pr; preparing iron (Fe) oxide; preparing boron (B) oxide; mixing the prepared (Nd, Pr) mixed oxide, iron oxide, and boron oxide to prepare a first mixture; mixing the first mixture with calcium (Ca) to prepare a second mixture; inducing diffusion while shaping and pressing the second mixture; reducing the shaped and pressed second mixture to prepare a magnetic substance containing Nd, Fe, and B; powdering the reduced magnetic substance; and removing reduction by-products from the powdered magnetic substance.

公开(公告)号：US20240278316A1

公开(公告)日：2024-08-22

申请号：US18444820

申请日：2024-02-19

申请人： SEIKO EPSON CORPORATION

发明人： Mayu WATANABE

IPC分类号： B22F1/08 ,  B22F1/05 ,  B22F1/065 ,  B22F3/02 ,  B22F3/24 ,  C22C38/00 ,  C22C38/02 ,  C22C38/10 ,  C22C38/12 ,  C22C38/16 ,  H01F1/153

CPC分类号： B22F1/08 ,  B22F1/05 ,  B22F1/065 ,  B22F3/02 ,  B22F3/24 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/10 ,  C22C38/12 ,  C22C38/16 ,  H01F1/15316 ,  B22F2003/248 ,  B22F2301/35 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2200/02 ,  C22C2202/02

摘要： Amorphous alloy soft magnetic powder includes a composition expressed by a composition formula in atomic ratio (FexCo1-x)100−(a+b)(SiyB1-y)aMb, where M is at least one type selected from the group consisting of C, S, P, Sn, Mo, Cu, and Nb, 0.73≤x≤0.85, 0.02≤y≤0.10, 13.0≤a≤19.0, and 0≤b≤2.0; and impurities. The amorphous alloy soft magnetic powder has an average circularity of 0.85 or more, an average aspect ratio of 1.20 or less, and an average particle size of 10 μm or more and 40 μm or less. In the amorphous alloy soft magnetic powder, a rate of decrease D in magnetic permeability accompanying an increase in frequency is 15% or less.

公开(公告)号：US20240198420A1

公开(公告)日：2024-06-20

申请号：US18555688

申请日：2022-04-18

申请人： SABIC Global Technologies B.V.

发明人： Sara Ali Abbas ,  Saeed Omar Badahdah ,  Donald Owens ,  Amit Kumar Tevtia ,  Karina Katarzyna Kopec

IPC分类号： B22F3/02 ,  B22F3/24 ,  B22F7/02

CPC分类号： B22F3/02 ,  B22F3/24 ,  B22F7/02 ,  B22F2003/242 ,  B22F2998/10

摘要： The present application describes the development of a method for creating a continuous conductive metal layer on a surface of a component, the component preferably made of molded acrylonitrile butadiene styrene polymer (ABS) or polycarbonate/ABS (PC/ABS) blend, the method utilizing cold sintering. This method avoids the need for chromic acid etching pretreatment prior to the electroplating process. Continuous, conductive and thickness-controllable layers of metals such as Ni, Fe, Cu or Ni/Fe have been created on the plastic surface using the cold sintering. The method will also work with any other metal. Thus, molded ABS or PC/ABS parts can be further electroplated without the need to go through the undesirable etching process.

公开(公告)号：US11965229B2

公开(公告)日：2024-04-23

申请号：US17201871

申请日：2021-03-15

申请人： Murata Manufacturing Co., Ltd.

发明人： Takuya Ishida ,  Makoto Yamamoto ,  Katsutoshi Uji ,  Yuya Ishida ,  Mitsuru Odahara

IPC分类号： H01F1/147 ,  B22F1/145 ,  B22F1/16 ,  B22F3/02 ,  C22C38/02 ,  H01F1/20 ,  H01F1/24 ,  H01F1/33 ,  B22F1/107 ,  H01F27/255

CPC分类号： C22C38/02 ,  B22F1/145 ,  B22F1/16 ,  B22F3/02 ,  H01F1/14766 ,  H01F1/24 ,  B22F1/107 ,  B22F2301/35 ,  B22F2302/256 ,  C22C2202/02 ,  H01F27/255 ,  Y10T428/12181 ,  B22F2998/10 ,  B22F1/148 ,  B22F3/02 ,  B22F3/1021

摘要： A metal magnetic particle provided with an oxide layer on a surface of an alloy particle containing Fe and Si. The oxide layer has a first oxide layer, a second oxide layer, a third oxide layer, and a fourth oxide layer. Also, in line analysis of element content by using a scanning transmission electron microscope-energy dispersive X-ray spectroscopy, the first oxide layer is a layer where Fe content takes a local maximum value, the second oxide layer is a layer where Fe content takes a local maximum value, the third oxide layer is a layer where Si content takes a local maximum value, and the fourth oxide layer is a layer where Fe content takes a local maximum value.

公开(公告)号：US20240120135A1

公开(公告)日：2024-04-11

申请号：US18480580

申请日：2023-10-04

申请人： SEIKO EPSON CORPORATION

发明人： Toshiki SANO

IPC分类号： H01F1/147 ,  B22F3/02 ,  B22F3/24 ,  B22F9/04 ,  B22F9/08 ,  C22C38/00 ,  C22C38/34

CPC分类号： H01F1/14766 ,  B22F3/02 ,  B22F3/24 ,  B22F9/04 ,  B22F9/082 ,  C22C38/002 ,  C22C38/34 ,  H01F27/255

摘要： A soft magnetic powder contains: Fe as a main component; Si having a content of 2.5 mass % or more and 6.5 mass % or less; Cr having a content of 1.0 mass % or more and 10.0 mass % or less; S having a content of 0.0020 mass % or more and 0.0070 mass % or less; and impurities. A ratio A/B is 3000 or more and 8000 or less, where A [ppm] is an oxygen content in terms of mass ratio and B [m2/g] is a specific surface area.

公开(公告)号：US20240112857A1

公开(公告)日：2024-04-04

申请号：US18478965

申请日：2023-09-29

申请人： NICHIA CORPORATION

发明人： Takashi ASADA ,  Shuichi TADA

IPC分类号： H01F41/02 ,  B22F1/05 ,  B22F1/142 ,  B22F1/145 ,  B22F3/02 ,  B22F3/26 ,  H01F1/059

CPC分类号： H01F41/0266 ,  B22F1/05 ,  B22F1/142 ,  B22F1/145 ,  B22F3/02 ,  B22F3/26 ,  H01F1/059 ,  B22F2003/248 ,  B22F2301/355 ,  B22F2998/10

摘要： A method of preparing an anisotropic magnetic powder compression molded product, the method including: compressing a magnetic powder in a mold using a compression punch while magnetically orienting the magnetic powder to obtain a compressed magnetic powder, wherein the compression punch has a contact surface with the magnetic powder that is not perpendicular to a compression direction; and compression molding the compressed magnetic powder using a molding punch having a different shape from the compression punch.

公开(公告)号：US11901101B2

公开(公告)日：2024-02-13

申请号：US17745912

申请日：2022-05-17

申请人： Seiko Epson Corporation

发明人： Atsushi Nakamura

IPC分类号： H01F1/147 ,  H01F1/24 ,  B22F1/16 ,  C22C38/02 ,  G11B5/66 ,  C22C1/08 ,  C22C1/10 ,  C22C33/02 ,  H01F1/20 ,  H01F1/28 ,  H01F17/06 ,  H01F27/28 ,  B22F3/02 ,  H01F27/24 ,  H01F1/33 ,  B22F1/142 ,  B22F1/00 ,  B22F9/08 ,  B22F1/05 ,  B22F3/10 ,  B22F1/052 ,  H01F3/08 ,  H01F1/18 ,  H01F27/255 ,  H01F17/04 ,  B22F9/04

CPC分类号： H01F1/147 ,  B22F1/00 ,  B22F1/05 ,  B22F1/052 ,  B22F1/142 ,  B22F1/16 ,  B22F3/02 ,  B22F3/10 ,  B22F9/08 ,  B22F9/082 ,  C22C1/08 ,  C22C1/1084 ,  C22C33/0257 ,  C22C38/02 ,  G11B5/66 ,  H01F1/1475 ,  H01F1/14766 ,  H01F1/18 ,  H01F1/20 ,  H01F1/24 ,  H01F1/28 ,  H01F1/33 ,  H01F3/08 ,  H01F17/062 ,  H01F27/24 ,  H01F27/2823 ,  B22F2009/043 ,  B22F2009/0828 ,  B22F2201/013 ,  B22F2201/016 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2301/35 ,  B22F2302/25 ,  B22F2303/01 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  H01F27/255 ,  H01F2017/048 ,  Y10T428/12014 ,  Y10T428/12035 ,  Y10T428/1259 ,  Y10T428/12181 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12951 ,  Y10T428/2991 ,  Y10T428/32

摘要： An insulating material-coated soft magnetic powder includes: a core particle that includes a base portion containing a soft magnetic material containing Fe as a main component and at least one of Si, Cr, and Al, and that includes an oxide film provided on a surface of the base portion and containing an oxide of at least one of Si, Cr, and Al; and an insulating film that is provided on a surface of the core particle and that contains a ceramic, in which a thickness of the insulating film is 5 nm or more and 300 nm or less, and the oxide contained in the oxide film and the ceramic contained in the insulating film are mutually diffused at an interface between the oxide film and the insulating film.

公开(公告)号：US11759857B2

公开(公告)日：2023-09-19

申请号：US17193309

申请日：2021-03-05

申请人： ETA SA Manufacture Horlogere Suisse

发明人： Jean-Claude Eichenberger ,  Hung Quoc Tran

IPC分类号： B22F3/02 ,  C22C9/02 ,  B22F3/16 ,  C22C9/04 ,  G04B15/14 ,  C22C19/00 ,  C22C19/03 ,  G04B17/06 ,  B22F5/08 ,  G04B1/14 ,  C22C30/02 ,  C22C30/06 ,  G04B31/06 ,  G04B13/02 ,  C22C1/04 ,  B22F1/052 ,  B22F9/08

CPC分类号： B22F3/16 ,  B22F1/052 ,  B22F3/02 ,  B22F5/08 ,  C22C1/0425 ,  C22C9/02 ,  C22C9/04 ,  C22C19/002 ,  C22C19/03 ,  C22C30/02 ,  C22C30/06 ,  G04B1/145 ,  G04B13/02 ,  G04B15/14 ,  G04B17/066 ,  G04B31/06 ,  B22F2009/0828 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2301/30 ,  B22F2303/15 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  B22F2999/00 ,  B22F2009/0828 ,  C22C9/02 ,  C22C19/03 ,  C22C29/04 ,  B22F2998/10 ,  B22F3/08 ,  B22F3/10 ,  B22F2009/0828 ,  B22F2207/20

摘要： The invention relates to a compacted and densified metal material having one or more phases formed of an agglomerate of grains, the cohesion of the material being provided by bridges formed between grains, said material having a relative density higher than or equal to 95% and preferably higher than or equal to 98%.

公开(公告)号：US20230192553A1

公开(公告)日：2023-06-22

申请号：US18113432

申请日：2023-02-23

申请人： Oulun yliopisto

发明人： Jari HANNU ,  Jari JUUTI ,  Heli JANTUNEN ,  Mikko NELO ,  Tuomo SIPONKOSKI ,  Hanna KÄHÄRI

IPC分类号： C04B35/00 ,  B22F3/02 ,  C22C1/051 ,  C22C32/00 ,  B22F1/052

CPC分类号： C04B35/00 ,  B22F3/02 ,  C22C1/051 ,  C22C32/0015 ,  B22F1/052 ,  B22F2302/25

摘要： A process for manufacturing ceramic-metal composite material, comprises dissolving ceramic powder into water to obtain an aqueous solution of ceramic; mixing metal powder having a multimodal particle size where largest particle size is one fourth of the minimum dimension of a device, with the aqueous solution of ceramic to obtain a powder containing ceramic precipitated on the surface of metal particles; mixing the powder containing ceramic precipitated on the surface of the metal particles, with ceramic powder having a particle size below 50 μm, to obtain a powder mixture; adding saturated aqueous solution of ceramic to the powder mixture to obtain an aqueous composition containing ceramic and metal; compressing the aqueous composition to form a disc of ceramic-metal composite material containing ceramic and metal; and removing water from the ceramic-metal composite material; wherein ceramic content of the disc is 10 vol-% to 35 vol-%. Alternatively, ceramic-ceramic composite material may be manufactured.

公开(公告)号：US11566313B2

公开(公告)日：2023-01-31

申请号：US16058497

申请日：2018-08-08

申请人： Mitsubishi Heavy Industries, Ltd.

发明人： Atsuo Ota ,  Shinya Imano

IPC分类号： C22F1/10 ,  C22C19/05 ,  B22F3/02 ,  B22F3/24 ,  B22F9/08

摘要： Provided is a method for manufacturing an Ni-based alloy member in which the equilibrium amount of γ′ phase precipitation at 700° C. is from 30 to 70 volume %. The method includes the steps of preparing an Ni-based alloy powder having a predetermined chemical composition; forming a precursor body wherein an average grain diameter of the γ phase grains is 50 μm or less, by using the Ni-based alloy powder; and heating the precursor body to a temperature at least the γ′ phase solvus temperature and subsequently slow-cooling the heated precursor body from the temperature to a temperature at least 100° C. lower than the γ′ phase solvus temperature at a cooling rate of 100° C./h or lower. There is obtained a softened body in that the γ′ phase particles of at least 20 volume % precipitate between/among the γ phase grains having an average grain diameter of 50 μm or less.