公开(公告)号：US12110577B2

公开(公告)日：2024-10-08

申请号：US17421201

申请日：2020-03-11

申请人： NGK SPARK PLUG CO., LTD.

发明人： Hiroshi Watanabe ,  Satoshi Mori ,  Manami Fujii ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Hisashi Kozuka

IPC分类号： B22F1/00 ,  B22F1/05 ,  B22F1/052 ,  B22F1/105 ,  B22F1/16 ,  C22C38/02 ,  H01F1/20

CPC分类号： C22C38/02 ,  B22F1/00 ,  B22F1/05 ,  B22F1/052 ,  B22F1/105 ,  B22F1/16 ,  H01F1/20 ,  B22F2301/35 ,  B22F2302/253 ,  B22F2304/10 ,  B22F2998/10 ,  B22F1/142 ,  B22F1/16 ,  B22F3/02 ,  B22F2003/248

摘要： The iron loss of a dust core is reduced. A dust core (1) includes soft magnetic metal particles (3) having an average particle size of 5 μm or more and 30 μm or less, and a particle boundary phase (6). The particle boundary phase (6) includes a polycrystalline compound containing Al (aluminum). When a sectional structure of the dust core (1) is observed, an area percentage of α-Al2O3 in the particle boundary phase (6) is 75% or less. An average thickness Ta of the particle boundary phase (6) is 10 nm or more and 300 nm or less. According to the present invention, the iron loss is reduced.

公开(公告)号：US12103081B2

公开(公告)日：2024-10-01

申请号：US17983270

申请日：2022-11-08

申请人： Alps Alpine Co., Ltd.

发明人： Kinshiro Takadate ,  Hisato Koshiba ,  Shokan Yamashita

IPC分类号： H01F3/08 ,  B22F1/00 ,  B22F1/052 ,  B22F1/06 ,  B22F1/08 ,  B22F1/102 ,  B22F3/00 ,  B22F3/02 ,  C22C45/02 ,  H01F1/153 ,  H01F1/22 ,  H01F1/26 ,  H01F17/06 ,  H01F41/02

CPC分类号： B22F3/00 ,  B22F1/00 ,  B22F1/052 ,  B22F1/06 ,  B22F1/08 ,  B22F1/09 ,  B22F1/102 ,  B22F3/02 ,  C22C45/02 ,  H01F1/153 ,  H01F1/15375 ,  H01F1/22 ,  H01F1/26 ,  H01F3/08 ,  H01F17/06 ,  H01F41/0246 ,  B22F2999/00 ,  H01F17/062 ,  B22F2999/00 ,  B22F1/06 ,  C22C2200/02 ,  C22C2200/00 ,  C22C2202/02

摘要： A dust core contains a powder of a crystalline magnetic material powder and a powder of an amorphous magnetic material. The sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 83 mass percent or more. The mass ratio of the content of the crystalline magnetic material powder to the sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 20 mass percent or less. The median diameter D50a of the amorphous magnetic material powder is greater than or equal to the median diameter D50c of the crystalline magnetic material powder. A 10% cumulative diameter D10a in a volume-based cumulative particle size distribution of the amorphous magnetic material powder is 9.5 μm or less.

公开(公告)号：US20240278314A1

公开(公告)日：2024-08-22

申请号：US18426496

申请日：2024-01-30

申请人： Michael T. Stawovy

发明人： Michael T. Stawovy

IPC分类号： B22D7/00 ,  B21C1/02 ,  B22F3/02 ,  B22F3/24 ,  B22F5/12 ,  B22F10/00 ,  B22F10/20 ,  B22F10/25 ,  B22F10/38 ,  B23K9/04 ,  B23K9/24 ,  B23K9/29 ,  B23K15/00 ,  B23K103/08 ,  B32B15/01 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C27/04 ,  F27D11/08

CPC分类号： B22D7/005 ,  B21C1/02 ,  B22F3/02 ,  B22F3/24 ,  B22F5/12 ,  B22F10/25 ,  B22F10/38 ,  B23K9/044 ,  B23K9/24 ,  B23K9/295 ,  B23K15/0086 ,  B23K15/0093 ,  B32B15/01 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C27/04 ,  F27D11/08 ,  B22F10/00 ,  B22F10/20 ,  B22F2301/20 ,  B23K2103/08 ,  Y02P10/25

摘要： In various embodiments, wire composed at least partially of arc-melted refractory metal material is utilized to fabricate three-dimensional parts by additive manufacturing.

公开(公告)号：US12065722B2

公开(公告)日：2024-08-20

申请号：US16669616

申请日：2019-10-31

申请人： The Swatch Group Research and Development Ltd

发明人： Joel Porret ,  Yves Winkler

IPC分类号： C22C32/00 ,  C04B35/101 ,  C04B35/106 ,  C04B35/14 ,  C04B35/44 ,  C04B35/56 ,  C04B35/565 ,  C04B35/58 ,  C04B35/584

CPC分类号： C22C32/0021 ,  C04B35/1015 ,  C04B35/106 ,  C04B35/14 ,  C04B35/44 ,  C04B35/5611 ,  C04B35/565 ,  C04B35/58071 ,  C04B35/58078 ,  C04B35/584 ,  C22C32/00 ,  C22C32/0026 ,  C04B2235/786 ,  B22F2998/10 ,  B22F1/10 ,  B22F3/02 ,  B22F3/1021 ,  B22F2003/247 ,  B22F2003/242 ,  B22F2998/10 ,  B22F1/10 ,  B22F3/02 ,  B22F3/1021 ,  B22F2003/247 ,  B22F2003/244

摘要： A composite material having a grainy appearance, this composite material including a metal matrix which represents, in terms of volume fraction, between 50 and 95% of the grainy composite material, the ceramic particles having a diameter that lies in the range 0.1 to 2 mm and which represent, in terms of volume fraction, between 50 and 5% of the composite material are dispersed in the metal matrix and form the remainder of this grainy composite material. A method for manufacturing a grainy synthetic material.

公开(公告)号：US12037668B2

公开(公告)日：2024-07-16

申请号：US17379666

申请日：2021-07-19

申请人： Alps Alpine Co., Ltd.

发明人： Akio Hanada ,  Koichi Fujita ,  Seiichi Abiko ,  Hisato Koshiba

IPC分类号： C22C45/02 ,  B22F1/08 ,  B22F1/102 ,  B22F1/16 ,  B22F3/00 ,  B22F3/02 ,  B22F3/24 ,  H01F1/153 ,  H01F1/22 ,  H01F1/33 ,  H01F27/255 ,  H01F41/02

CPC分类号： C22C45/02 ,  B22F1/08 ,  B22F1/102 ,  B22F1/16 ,  B22F3/00 ,  B22F3/02 ,  B22F3/24 ,  H01F1/15308 ,  H01F1/22 ,  H01F1/33 ,  H01F27/255 ,  H01F41/0246 ,  B22F2003/248 ,  B22F2301/35 ,  B22F2998/10 ,  B22F2999/00 ,  B22F1/16 ,  C22C2200/02 ,  B22F2207/07

摘要： A powder magnetic core containing a magnetic particle of an Fe-based Cr-containing amorphous alloy and an organic binding substance is provided as a powder magnetic core with a small loss and high initial permeability. The depth profile of the composition determined from the surface of the magnetic particle in the powder magnetic core has the following characteristics. (1) An oxygen-containing region with an O/Fe ratio of 0.1 or more can be defined from the surface of the magnetic particle, and the oxygen-containing region has a depth of 35 nm or less from the surface. (2) A carbon-containing region with a C/O ratio of 1 or more can be defined from the surface of the magnetic particle, and the carbon-containing region has a depth of 5 nm or less from the surface. (3) The oxygen-containing region has a Cr-concentrated portion with a bulk Cr ratio of more than 1.

公开(公告)号：US12006560B2

公开(公告)日：2024-06-11

申请号：US18174649

申请日：2023-02-27

申请人： JFE STEEL CORPORATION

发明人： Naoki Yamamoto ,  Takuya Takashita ,  Makoto Nakaseko ,  Akio Kobayashi ,  Akiri Urata ,  Miho Chiba

IPC分类号： H01F1/22 ,  B22F1/00 ,  B22F1/052 ,  B22F1/07 ,  B22F1/08 ,  B22F9/00 ,  C22C38/02 ,  C22C45/02 ,  H01F1/153 ,  H01F3/08 ,  H01F27/255

CPC分类号： C22C38/02 ,  B22F1/052 ,  B22F1/07 ,  B22F1/08 ,  B22F9/002 ,  C22C45/02 ,  H01F1/15308 ,  H01F1/15333 ,  H01F1/22 ,  H01F3/08 ,  H01F27/255 ,  B22F2998/10 ,  C22C2200/02 ,  C22C2202/02 ,  B22F2998/10 ,  B22F9/002 ,  B22F1/08 ,  B22F1/10 ,  B22F3/02 ,  B22F2003/248

摘要： Provided is an Fe-based nanocrystalline alloy powder. The Fe-based nanocrystalline alloy powder has a chemical composition, excluding inevitable impurities, represented by a composition formula of FeaSibBcPdCueMf, where the M in the composition formula is at least one element selected from the group consisting of Nb, Mo, Zr, Ta, W, Hf, Ti, V, Cr, Mn, C, Al, S, O, and N, 79 at %≤a≤84.5 at %, 0 at %≤b

公开(公告)号：US12005641B2

公开(公告)日：2024-06-11

申请号：US17857362

申请日：2022-07-05

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： Kristopher J. Erickson ,  Thomas C. Anthony

IPC分类号： B29C64/165 ,  B22F1/054 ,  B22F10/14 ,  B28B1/00 ,  B33Y10/00 ,  B33Y70/00 ,  C04B35/622 ,  C04B35/634 ,  C04B35/64

CPC分类号： B29C64/165 ,  B22F1/054 ,  B22F10/14 ,  B28B1/001 ,  B33Y10/00 ,  B33Y70/00 ,  C04B35/62218 ,  C04B35/634 ,  C04B35/64 ,  B22F2304/05 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3272 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/3293 ,  C04B2235/3418 ,  C04B2235/3826 ,  C04B2235/3847 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/422 ,  C04B2235/442 ,  C04B2235/5454 ,  C04B2235/6026 ,  C04B2235/667 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/02

摘要： According to an example, a green body may include from about 1 wt. % to about 20 wt. % of a metal nanoparticle binder and a build material powder, wherein the metal nanoparticle binder is selectively located within an area of the green body to impart a strength greater than about 3 MPa.

公开(公告)号：US20240183007A1

公开(公告)日：2024-06-06

申请号：US18437721

申请日：2024-02-09

申请人： NAECO, LLC

发明人： Guenther Horn ,  David C. Bergmann ,  Frederick C. Bergmann

IPC分类号： C22C1/04 ,  B22F1/16 ,  B22F3/00 ,  B22F3/02 ,  B22F3/16 ,  B22F3/20 ,  B22F9/04 ,  C22C1/05 ,  C22C32/00

CPC分类号： C22C1/0425 ,  B22F1/16 ,  B22F3/002 ,  B22F3/02 ,  B22F3/16 ,  B22F3/20 ,  B22F9/04 ,  C22C1/05 ,  C22C32/0084 ,  B22F2003/208 ,  B22F2009/043 ,  B22F2301/10 ,  B22F2302/40 ,  B22F2998/10 ,  B22F2999/00

摘要： A method of producing a metal matrix composite by extruding a billet including both a metallic material and a non-metallic material through a die to form a metal matrix composite extrudate, where the non-metallic material is distributed evenly along a longitudinal length of the billet, where, during extrusion, a temperature of the billet does not exceed a melting temperature of the metallic material; and where the metal matrix composite extrudate has an extrusion ratio of at least 20:1.

公开(公告)号：US11998982B2

公开(公告)日：2024-06-04

申请号：US17166475

申请日：2021-02-03

申请人： Desktop Metal, Inc.

发明人： George Hudelson ,  Emanuel M. Sachs ,  Glenn A. Jordan ,  Midnight Zero

IPC分类号： B33Y30/00 ,  B22F1/10 ,  B22F3/00 ,  B22F3/16 ,  B22F3/18 ,  B22F3/24 ,  B22F10/00 ,  B22F10/14 ,  B22F10/37 ,  B22F12/52 ,  B22F12/57 ,  B22F12/63 ,  B29C64/194 ,  B29C64/214 ,  B29C64/218 ,  B29C64/236 ,  B29C64/329 ,  B29C64/343 ,  B33Y10/00 ,  B33Y40/00 ,  H05K3/10 ,  H05K3/12 ,  B22F10/28 ,  B22F12/00 ,  B29C64/165 ,  B33Y50/02

CPC分类号： B22F3/004 ,  B22F1/10 ,  B22F3/16 ,  B22F3/18 ,  B22F3/24 ,  B22F10/00 ,  B22F10/14 ,  B22F10/37 ,  B22F12/52 ,  B22F12/57 ,  B22F12/63 ,  B29C64/194 ,  B29C64/214 ,  B29C64/218 ,  B29C64/236 ,  B29C64/329 ,  B29C64/343 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  H05K3/102 ,  H05K3/1275 ,  B22F2003/247 ,  B22F10/28 ,  B22F12/224 ,  B22F2998/10 ,  B22F2999/00 ,  B29C64/165 ,  B33Y50/02 ,  H05K2203/0126 ,  H05K2203/0143 ,  H05K2203/1131 ,  B22F2999/00 ,  B22F3/004 ,  B22F2201/20 ,  B22F2998/10 ,  B22F10/10 ,  B22F3/004 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/145 ,  B22F10/20 ,  B22F2999/00 ,  B22F10/10 ,  B22F10/00 ,  B22F3/004 ,  B22F2998/10 ,  B22F10/00 ,  B22F3/004 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/145 ,  B22F10/10 ,  B22F2999/00 ,  B22F10/10 ,  B22F3/004 ,  B22F2203/00 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/004 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/145 ,  B22F10/28 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/004 ,  B22F2203/00 ,  B22F3/02 ,  B22F1/145 ,  B22F10/14 ,  B22F2999/00 ,  B22F12/52 ,  B22F3/004 ,  B22F2203/00 ,  B22F2999/00 ,  B22F10/14 ,  B22F3/004 ,  B22F2999/00 ,  B22F12/52 ,  B22F10/14 ,  B22F3/004 ,  B22F2999/00 ,  B22F10/14 ,  B22F3/004 ,  B22F2203/00 ,  B22F2998/10 ,  B22F2203/00 ,  B22F3/004 ,  B22F1/145 ,  B22F3/02 ,  B22F10/20 ,  B22F10/10 ,  B22F2998/10 ,  B22F10/00 ,  B22F2203/00 ,  B22F3/004 ,  B22F1/145 ,  B22F3/02 ,  B22F10/10

摘要： A system and corresponding method for additive manufacturing of a three-dimensional (3D) object to improve packing density of a powder bed used in the manufacturing process. The system and corresponding method enable higher density packing of the powder. Such higher density packing leads to better mechanical interlocking of particles, leading to lower sintering temperatures and reduced deformation of the 3D object during sintering. An embodiment of the system comprises means for adjusting a volume of a powder metered onto a top surface of the powder bed to produce an adjusted metered volume and means for spreading the adjusted metered volume to produce a smooth volume for forming a smooth layer of the powder with controlled packing density across the top surface of the powder bed. The controlled packing density enables uniform shrinkage, without warping, of the 3D object during sintering to produce higher quality 3D printed objects.

公开(公告)号：US11958263B2

公开(公告)日：2024-04-16

申请号：US17629120

申请日：2020-07-16

申请人： KYOCERA Corporation

发明人： Hiroshi Hamashima

IPC分类号： B30B15/02 ,  B22F3/02 ,  B22F5/00 ,  B30B11/02

CPC分类号： B30B11/02 ,  B22F3/02 ,  B22F5/00

摘要： A molding die according to the present disclosure includes a tubular portion and a base portion that closes an end portion of the tubular portion at one side. A cut level difference Rδc1 in a roughness curve of an inner wall surface of the tubular portion is smaller than a cut level difference Rδc2 in a roughness curve of an inner wall bottom portion of the base portion. The cut level difference represents a difference between a cut level at a load length ratio of 25% in a roughness curve and a cut level at a load length ratio of 75% in the roughness curve.