公开(公告)号：US09793035B2

公开(公告)日：2017-10-17

申请号：US14712326

申请日：2015-05-14

Applicant: TDK CORPORATION

Inventor： Yu Sakurai ,  Tomofumi Kuroda ,  Hideyuki Itoh

IPC: H01F1/20 ,  C22C38/02 ,  H01F1/24 ,  H01F41/02 ,  H01F1/147 ,  C22C38/00 ,  C22C33/02

CPC classification number: H01F1/20 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0257 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  H01F1/14766 ,  H01F1/24 ,  H01F41/0246 ,  B22F9/08 ,  B22F1/0085 ,  B22F1/0088 ,  B22F2003/145 ,  B22F2201/02

Abstract: The present invention relates to a soft magnetic metal powder which has Fe as the main component and contains Si and B, wherein, the content of Si in the soft magnetic metal powder is 1 to 15 mass %, the content of boron inside the metal particle of the soft magnetic metal powder is 10 to 150 ppm, and the particle has a film of boron nitride on the surface. The present invention also relates to a soft magnetic metal powder core prepared by using the soft magnetic metal powder.

公开(公告)号：US09773597B2

公开(公告)日：2017-09-26

申请号：US13979988

申请日：2012-02-22

Applicant: Hiroaki Ikeda ,  Hiroshi Tanaka ,  Kazunori Igarashi

Inventor： Hiroaki Ikeda ,  Hiroshi Tanaka ,  Kazunori Igarashi

IPC: H01F1/24 ,  H01F41/02 ,  B22F1/02 ,  B22F3/16 ,  C22C33/02 ,  C22C38/02 ,  H01F3/08 ,  H01F27/255 ,  H01F1/26 ,  H01F1/33

CPC classification number: H01F1/24 ,  B22F1/02 ,  B22F1/025 ,  B22F3/16 ,  B22F3/24 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0214 ,  C22C33/0278 ,  C22C38/02 ,  C22C2202/02 ,  H01F1/26 ,  H01F1/33 ,  H01F3/08 ,  H01F27/255 ,  H01F41/0246 ,  B22F3/02 ,  B22F2003/248 ,  B22F2201/02 ,  B22F2201/20

Abstract: A composite soft magnetic material having low magnetostriction and high magnetic flux density contains: pure iron-based composite soft magnetic powder particles that are subjected to an insulating treatment by a Mg-containing insulating film or a phosphate film; and Fe—Si alloy powder particles including 11%-16% by mass of Si. A ratio of an amount of the Fe—Si alloy powder particles to a total amount is in a range of 10%-60% by mass. A method for producing the composite soft magnetic material comprises the steps of: mixing a pure iron-based composite soft magnetic powder, and the Fe—Si alloy powder in such a manner that a ratio of the Fe—Si alloy powder to a total amount is in a range of 10%-60%; subjecting a resultant mixture to compression molding; and subjecting a resultant molded body to a baking treatment in a non-oxidizing atmosphere.

公开(公告)号：US20170259337A1

公开(公告)日：2017-09-14

申请号：US15118026

申请日：2015-11-13

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Tetsuyoshi FURUKAWA

IPC: B22F3/105 ,  B33Y30/00 ,  B33Y50/02 ,  B22F3/10

CPC classification number: B22F3/1055 ,  B22F3/1007 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/321 ,  B29C64/343 ,  B29C64/371 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2201/10 ,  B22F2201/02 ,  B22F2201/20

Abstract: A powder is supplied to a shaping chamber without interrupting processing of shaping a three-dimensional laminated and shaped object. A three-dimensional laminating and shaping apparatus includes a shaping chamber in which a three-dimensional laminated and shaped object is shaped, a powder storage that stores a powder conveyed to the shaping chamber, an intermediate powder storage that is provided between the shaping chamber and the powder storage, is connected to the shaping chamber via a first valve, is connected to the powder storage via a second valve, and temporarily stores the powder, a valve controller that controls opening/closing of each of the first valve and the second valve, and an atmosphere controller that controls an atmosphere in the intermediate powder storage and an atmosphere in the shaping chamber.

公开(公告)号：US20170232517A1

公开(公告)日：2017-08-17

申请号：US15434683

申请日：2017-02-16

Applicant: Board of Regents, The University of Texas System

Inventor： Philip A. Morton ,  Ryan Wicker ,  Jorge Mireles ,  Alejandro Hinojos

IPC: B22F3/105 ,  B22F3/00 ,  G06F17/50 ,  B33Y10/00 ,  B23K15/00 ,  B23K26/342 ,  B22F3/24 ,  B22F3/10

CPC classification number: B22F3/1055 ,  B22F3/008 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y50/00 ,  G06F17/5018 ,  G06F17/5086 ,  Y02P10/295 ,  B22F3/26 ,  B22F2203/11 ,  B22F2203/13 ,  B22F2201/11 ,  B22F2201/03 ,  B22F2201/02 ,  B22F2201/04 ,  B22F2003/248

Abstract: Methods and systems comprise new design procedures that can be implemented for additive manufacturing technologies that involve evaluation of stress concentration sites using finite element analysis and implementation of scanning strategies during fabrication that improve performance by spatially adjusting thermal energy at potential failure sites or high stress regions of a part.

公开(公告)号：US20170186519A1

公开(公告)日：2017-06-29

申请号：US15387997

申请日：2016-12-22

Applicant: NICHIA CORPORATION

Inventor： Hisashi MAEHARA

IPC: H01F1/059 ,  C22C38/00 ,  C22C38/12 ,  B22F1/00 ,  B22F9/24

CPC classification number: H01F1/059 ,  B22F1/0014 ,  B22F9/18 ,  B22F9/24 ,  B22F2303/01 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C38/005 ,  C22C38/12 ,  B22F1/0085 ,  B22F9/22 ,  B22F1/0088 ,  B22F2201/02

Abstract: A method of producing anisotropic magnetic powders comprising obtaining a precipitate containing an element R, iron and lanthanum from a solution including R, iron and lanthanum, wherein R is at least one selected from the group consisting of Sc, Y, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm and Lu; obtaining an oxide containing R, iron and lanthanum from the precipitate; treating the oxide with a reducing gas to obtain a partial oxide; obtaining alloy particles by reduction diffusion of the partial oxide at a temperature in the range of 920° C. to 1200° C.; and nitriding the alloy particles to produce an anisotropic magnetic powder represented by the following general formula: Rv-xFe(100-v-w-z)NwLaxWz, where 3≦v−x≦30, 5≦w≦15, 0.08≦x≦0.3, and 0≦z≦2.5.

公开(公告)号：US20170178773A1

公开(公告)日：2017-06-22

申请号：US15118116

申请日：2014-02-12

Applicant: NITTO DENKO CORPORATION

Inventor： Izumi OZEKI ,  Katsuya KUME ,  Toshiaki OKUNO ,  Takashi OZAKI ,  Tomohiro OMURE ,  Keisuke TAIHAKU ,  Takashi YAMAMOTO

IPC: H01F1/053 ,  B22F9/04 ,  C22C1/04

CPC classification number: H01F1/0536 ,  B22F3/1021 ,  B22F3/22 ,  B22F5/006 ,  B22F9/04 ,  B22F2009/041 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0441 ,  C22C33/0278 ,  C22C38/002 ,  C22C38/005 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0273 ,  B22F2009/043 ,  B22F2009/044 ,  B22F2201/01 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2202/05 ,  B22F9/023 ,  B22F1/0074 ,  B22F3/105

Abstract: Provided are a rare-earth permanent magnet whose magnet density after sintering is very high and a method for manufacturing a rare-earth permanent magnet. Thus, a magnet raw material is milled into magnet powder, and then, a compound 12 is formed by mixing the magnet powder thus milled with a binder. Next, the compound 12 thus formed is subjected to a hot-melt molding onto a supporting substrate 13 so as to form a green sheet 14 molded to a sheet-like shape. Thereafter, while the green sheet 14 thus molded is softened by heating, magnetic field orientation is carried out by applying a magnetic field to the green sheet 14 thus heated; and further, the green sheet 14 having been subjected to the magnetic field orientation is calcined by a vacuum sintering, which is further followed by a pressure sintering to produce a permanent magnet 1.

公开(公告)号：US20170140855A1

公开(公告)日：2017-05-18

申请号：US15344245

申请日：2016-11-04

Applicant: TDK CORPORATION

Inventor： Atsushi TADA

IPC: H01F1/053 ,  C22C38/16 ,  C22C38/10 ,  B22F3/16 ,  C21D3/06 ,  C21D1/74 ,  B22F9/04 ,  H01F1/08 ,  C22C38/00

CPC classification number: H01F1/0536 ,  B22F3/16 ,  B22F9/04 ,  B22F2009/044 ,  B22F2201/02 ,  B22F2202/05 ,  B22F2998/10 ,  B22F2999/00 ,  C21D1/74 ,  C21D3/06 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C38/16 ,  H01F1/0577 ,  H01F1/08 ,  B22F3/087 ,  B22F3/1007 ,  B22F2201/20 ,  B22F9/023 ,  B22F1/0085 ,  B22F2009/042 ,  B22F2003/248

Abstract: An R-T-B based sintered magnet includes R2T14B crystal grains. A grain boundary formed by the two or more adjacent R2T14B crystal grains includes an R—N—O—C concentrated part having higher concentrations of “R”, N, O, and C than those in the R2T14B crystal grains. “R” of the R—N—O—C concentrated part includes Y. A ratio of Y atom to “R” atom in the R—N—O—C concentrated part is 0.65 or more and 1.00 or less. A ratio of O atom to “R” atom in the R—N—O—C concentrated part is more than 0 and 0.20 or less. A ratio of N atom to “R” atom in the R—N—O—C concentrated part is 0.03 or more and 0.15 or less.

公开(公告)号：US20170098496A1

公开(公告)日：2017-04-06

申请号：US15382672

申请日：2016-12-18

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun ,  Yongli Duan

IPC: H01F1/057 ,  C22C38/16 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C22C38/00 ,  C22C33/04 ,  B22F9/08 ,  B22F1/00 ,  B22F9/04 ,  B22F3/16 ,  B22F3/087 ,  B22F3/10 ,  C21D9/00 ,  C21D6/00 ,  H01F41/02

CPC classification number: C21D6/007 ,  B22F1/0055 ,  B22F3/101 ,  B22F3/16 ,  B22F3/162 ,  B22F2998/10 ,  B22F2999/00 ,  C21D9/00 ,  C22C33/02 ,  C22C33/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F1/059 ,  H01F41/0293 ,  B22F9/08 ,  B22F2009/048 ,  B22F2009/044 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/02 ,  B22F2201/20 ,  B22F2201/05

Abstract: A high-performance NdFeB permanent magnet including a nitride phase and a production method thereof are provided. A main phase of the NdFeB permanent magnet has a structure of R2T14B; a grain boundary phase is distributed around the main phase and contains N, F, Zr, Ga and Cu; a composite phase containing R1, Tb and N exists between the main phase and the grain boundary phase and includes a phase having a structure of (R1, Tb)2T14(B, N). R represents at least two rare earth elements, and includes Pr and Nd; T represents Fe, Mn, Al and Co; R1 represents at least one rare earth element, and includes at least one of Dy and Tb; the main phase contains Pr, Nd, Fe, Mn, Al, Co and B; and the grain boundary phase further contains at least one of Nb and Ti. Through placing partially B by N, a magnetic performance is increased.

公开(公告)号：US20170095861A1

公开(公告)日：2017-04-06

申请号：US15314972

申请日：2015-05-29

Applicant: Temper IP, LLC

Inventor： William C. Dykstra ,  Luke A. Martin

IPC: B22F5/00 ,  B22F3/16 ,  B22F3/105 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y80/00 ,  B22F1/00 ,  B22F3/02 ,  B22F3/115

CPC classification number: B22F5/00 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/04 ,  B22F3/1055 ,  B22F3/115 ,  B22F3/16 ,  B22F7/06 ,  B22F2003/1051 ,  B22F2003/1053 ,  B22F2003/1054 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2207/17 ,  B22F2301/205 ,  B22F2302/40 ,  B22F2302/45 ,  B22F2998/10 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C32/0089 ,  C22C49/14 ,  C22C2026/002 ,  F16C7/02 ,  F16C2220/20 ,  Y02P10/295 ,  B22F3/105

Abstract: A powdered material preform includes a pressed powdered metal or other powdered material, where the preform is processed and sealed so that a skin or shell is formed at the outer surface of the preform (such as via melting an outer layer or surface of the preform or via adding an outer layer around the preform or via a combination thereof), with an inner portion of the preform comprising pressed powdered material. The skinned preform may comprise a shape that is generally similar to that of a final product or part to be formed, or may simply comprise a puck or shape of approximately the same mass of the shape being formed, and the skinned preform is suitable for use in subsequent densification and/or consolidation processes or combinations thereof to form the final, fully processed part.

公开(公告)号：US09610555B2

公开(公告)日：2017-04-04

申请号：US14677859

申请日：2015-04-02

Applicant: US SYNTHETIC CORPORATION

Inventor： Debkumar Mukhopadhyay ,  Kenneth E. Bertagnolli ,  Cody William Knuteson

IPC: B24D18/00 ,  B01J3/06 ,  E21B10/56 ,  C22C26/00 ,  B24D3/10 ,  E21B10/55 ,  E21B10/567 ,  E21B10/573 ,  B22F3/14 ,  B22F7/06

CPC classification number: B24D18/0009 ,  B01J3/062 ,  B01J3/065 ,  B22F3/14 ,  B22F7/06 ,  B22F2999/00 ,  B24D3/10 ,  C04B35/52 ,  C04B41/009 ,  C04B41/5177 ,  C04B41/5194 ,  C04B41/88 ,  C04B2235/427 ,  C22C26/00 ,  E21B10/55 ,  E21B10/56 ,  E21B10/567 ,  E21B10/5735 ,  B22F2201/20 ,  B22F2201/10 ,  B22F2201/02 ,  B22F2201/04

Abstract: Embodiments of the invention relate to methods of forming polycrystalline diamond compacts (“PDCs”), wherein the PDC includes a polycrystalline diamond (“PCD”) table in which at least one Group VIII metal is at least partially alloyed with phosphorus and/or at least one other alloying element to improve the thermal stability of the PCD table. The disclosed PDCs may be used in a variety of applications, such as rotary drill bits, machining equipment, and other articles and apparatuses.