公开(公告)号：US20240331899A1

公开(公告)日：2024-10-03

申请号：US18607699

申请日：2024-03-18

Applicant: TDK CORPORATION

Inventor： Ikuya KOKAWA ,  Yoshinori Fujikawa ,  Takahiro Suwa ,  Wakako Okawa

IPC: H01F1/057 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16

CPC classification number: H01F1/0577 ,  B22F3/16 ,  B22F3/24 ,  B22F9/023 ,  B22F9/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2201/02 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2998/10 ,  B22F2999/00

Abstract: An R-T-B based permanent magnet comprises main phases each comprising a core and a shell, and a grain boundary phase adjacent to the main phases. The shell comprises Tb. The shell has a thickness of 70 nm or more. The shell has a Tb concentration with a maximum of 1.7 at % or more.

公开(公告)号：US20240321491A1

公开(公告)日：2024-09-26

申请号：US18612333

申请日：2024-03-21

Applicant: TDK Corporation

Inventor： Takuma HAYAKAWA

IPC: H01F1/057 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16

CPC classification number: H01F1/0577 ,  B22F3/16 ,  B22F3/24 ,  B22F9/023 ,  B22F9/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  B22F2003/242 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: An R-T-B based permanent magnet includes at least a rare earth element, Fe, Co, Si, Zr, Ga, and B. The rare earth element includes a heavy rare earth element. The R-T-B based permanent magnet has a rare earth element content of 28.50 mass % to 31.50 mass %, a heavy rare earth element content of 0.30 mass % or less excluding 0 mass %, a Co content of 0.20 mass % to 1.00 mass %, a Si content of 0.35 mass % to 1.20 mass %, a Zr content of 0.21 mass % to 0.85 mass %, a Ga content of 0.04 mass % to 0.40 mass %, a B content of 0.90 mass % to 1.02 mass %, and a C content of 0 mass % to 0.11 mass %.

公开(公告)号：US20240269745A1

公开(公告)日：2024-08-15

申请号：US18438949

申请日：2024-02-12

Applicant: Addman Intermediate Holdings, LLC

Inventor： Youping Gao

IPC: B22F10/28 ,  B22F1/14 ,  B22F10/50 ,  B33Y10/00 ,  B33Y80/00

CPC classification number: B22F10/28 ,  B22F1/14 ,  B22F10/50 ,  B22F2201/02 ,  B22F2201/03 ,  B22F2201/10 ,  B22F2301/20 ,  B22F2304/10 ,  B33Y10/00 ,  B33Y80/00

Abstract: Methods of fabricating objects using additive manufacturing are provided using pretreated powders. In a first aspect, the methods create in situ dispersoids within the object to increase the oxygen content to between 500 ppm and 3000 ppm or to increase the nitrogen content to between 250 ppm and 1500 ppm. The pretreated powders are then formed into layers in an environmentally controlled chamber of an additive manufacturing machine. The quantity of refractory alloy powder is partially pretreated by exposure to the atmosphere for a selected period of time or in an inert atmosphere having oxygen and/or nitrogen introduced thereinto. The partially pretreated quantity of powder is then further pretreated in an inert atmosphere controlled chamber to raise the oxygen and/or nitrogen level to between about 250 ppm and 1000 ppm for nitrogen and between about 500 ppm and 2000 ppm for oxygen. The layers of pretreated powder are then exposed to a transient moving energy source or stationary energy source for melting and solidifying the layers; and creating in situ dispersoids in the layers. In a second aspect, carbon dioxide is introduced into an inert atmosphere controlled chamber having hafnium powder therein for creating hafnium carbide dispersoids throughout the object.

公开(公告)号：US20240261858A1

公开(公告)日：2024-08-08

申请号：US18385905

申请日：2023-10-31

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY

Inventor： Rhushikesh GHOTKAR ,  Ryan MILCAREK ,  Ivan ERMANOSKI ,  James MILLER ,  Roy HOGAN, JR.

IPC: B22F9/20

CPC classification number: B22F9/20 ,  B22F2201/02 ,  B22F2202/01 ,  B22F2203/11 ,  B22F2304/10

Abstract: The disclosure concerns reactors for reducing metal oxide particles comprising: (a) a vertical heated channel; (b) a plurality of inclined, vertically stacked metal meshes, said meshes comprising: (i) a particle opaque portion comprising over about 50% of the meshes' length and having openings smaller than the smallest particle; and (ii) a particle transparent portion having openings large enough for particles to pass to the next level; (c) a vibration motor coupled to the meshes; and (d) an insulated chamber for storing the particles. Other aspects of the disclosure concern methods of reducing metal oxide particles. Yet other aspects concern thermochemical energy storage reactor devices comprising such reactors.

公开(公告)号：US12000006B2

公开(公告)日：2024-06-04

申请号：US17248953

申请日：2021-02-15

Applicant: MACLEAN-FOGG COMPANY

Inventor： Charles D. Tuffile ,  Harald Lemke

IPC: C21D8/02 ,  B22F10/00 ,  B22F10/20 ,  B22F10/28 ,  B22F10/32 ,  B22F10/36 ,  B22F12/17 ,  B23K26/00 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y70/00 ,  C21D1/18 ,  C21D1/613 ,  C21D6/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C23C8/22 ,  C23C8/54 ,  B22F1/05 ,  B22F3/24 ,  B22F9/08 ,  C22C33/02

CPC classification number: C21D1/18 ,  B22F10/00 ,  B22F10/20 ,  B22F10/28 ,  B22F10/32 ,  B22F10/36 ,  B22F12/17 ,  B23K26/0006 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y70/00 ,  C21D1/613 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0257 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C23C8/22 ,  C23C8/54 ,  B22F1/05 ,  B22F2003/241 ,  B22F2003/248 ,  B22F9/082 ,  B22F2201/02 ,  B22F2201/30 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0278 ,  Y02P10/25

Abstract: Alloy compositions for 3D metal printing procedures which provide metallic parts with high hardness, tensile strengths, yield strengths, and elongation. The alloys include Fe, Cr and Mo and at least three or more elements selected from C, Ni, Cu, Nb, Si and N. As built parts indicate a tensile strength of at least 1000 MPa, yield strength of at least 640 MPa, elongation of at least 3.0% and hardness (HV) of at least 375.

公开(公告)号：US20240174868A1

公开(公告)日：2024-05-30

申请号：US18108344

申请日：2023-02-10

Applicant: North China Electric Power University ,  Ocean Shield Inc.

Inventor： Zongde LIU ,  Herong MA ,  Zhongxun LIU

IPC: C09D5/16 ,  B22F9/08 ,  C09D7/40 ,  C09D7/61

CPC classification number: C09D5/1618 ,  B22F9/082 ,  C09D7/61 ,  C09D7/66 ,  B22F2009/0848 ,  B22F2201/02 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2303/30

Abstract: Provided are a coating for preventing marine biofouling and a preparation method thereof, wherein, the coating for preventing marine biofouling, including an antifouling cladding layer disposed on a metal substrate, the antifouling cladding layer is a metastable-phase antifouling cladding layer; the antifouling cladding layer includes a dispersedly distributed Fe-rich precipitation phase and a Cu-rich solid solution containing supersaturated Fe, and the Cu-rich solid solution containing supersaturated Fe is a Cu—Fe—Sn—Si—P copper-based solid solution; the antifouling cladding layer is prepared by a raw material of a Cu—Fe—Sn—Si—P alloy powder; the Cu—Fe—Sn—Si—P alloy powder is prepared by the following raw materials in mass percentage: Fe: 8% to 40%; Sn: 0.3% to 8%; Si: 0.1% to 0.5%; P: 0.1% to 0.5%; and Cu as a balance; and the metal substrate is selected from the group consisting of a steel substrate, a copper alloy substrate, a titanium alloy substrate, and an aluminum alloy substrate.

公开(公告)号：US20240157439A1

公开(公告)日：2024-05-16

申请号：US18544855

申请日：2023-12-19

Applicant: Gary L. Anderson ,  Peter G. Imbrogno ,  Kevin Brunner

Inventor： Gary L. Anderson ,  Peter G. Imbrogno ,  Kevin Brunner

IPC: B22F5/08 ,  B22F3/10 ,  B22F7/08 ,  F16H55/06 ,  F16H55/17

CPC classification number: B22F5/085 ,  B22F3/1007 ,  B22F7/08 ,  F16H55/06 ,  F16H55/17 ,  B22F2201/02 ,  B22F2201/30 ,  B22F2301/35 ,  F16H2055/176

Abstract: It has been found that duplex monolithic parts can be manufactured in high volume at low cost by using powder metal technology to mold and sinter an inner component of the part into an outer component of the part. This technique reduces the cost of manufacturing intricate metal products by taking advantage of the attributes of powder metal technology in making the inner component of the part. The outer component of the part can be wrought machined, stamped or forged, or made by double press double sinter or forging a powder metal component of the part. In any case, this technique can beneficially be used in making a wide variety of toroid parts, such as gears, clutches, sprags, bearing races, one-way diodes, and the like.

公开(公告)号：US20240141476A1

公开(公告)日：2024-05-02

申请号：US18089245

申请日：2022-12-27

Applicant: TAIWAN STEEL GROUP AEROSPACE ADDITIVE MANUFACTURING CORPORATION

Inventor： William HSIEH ,  Bo-Chen Wu ,  Chii-Feng Huang ,  Jun-Cheng Wang

IPC: C23C14/34 ,  B22F10/28 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y80/00 ,  C22C33/02

CPC classification number: C23C14/3407 ,  B22F10/28 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y80/00 ,  C22C33/02 ,  B22F2201/02 ,  B22F2201/10 ,  B22F2304/10 ,  C22C38/32

Abstract: A method for manufacturing a target material is provided, including the steps of: disposing raw material powder on a substrate and melting the raw material powder by laser to form a target material layer; repeating the preceding process to allow a plurality of target material layers to form an integrated target material column; after cooling the target material column, removing the target material column from the substrate; and performing vacuum heat treatment on the target material column. Since the target material is additively manufactured and subjected to vacuum heat treatment, the target material has a finer and more uniform microstructure, thus improving the product quality.

公开(公告)号：US11958111B2

公开(公告)日：2024-04-16

申请号：US17180994

申请日：2021-02-22

Applicant: General Electric Company

Inventor： David Alan Bartosik ,  Thomas Graham Spears

IPC: B22F12/41 ,  B22F10/36 ,  B22F10/85 ,  B22F12/70 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B22F10/36 ,  B22F10/85 ,  B22F12/41 ,  B22F12/70 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/12

Abstract: An additive manufacturing machine may include a beam source, a process chamber, a beam column operably coupled to the process chamber and/or defining a portion of the process chamber, and a gaseous ionization detector disposed about the beam column. The gaseous ionization detector may be configured to detect elementary particles corresponding to an ionizing gas ionized by an energy beam from the beam source. A method of additively manufacturing a three-dimensional object may include determining data from a gaseous ionization detector disposed about a beam column of an additive manufacturing machine, and additively manufacturing a three-dimensional object using the additive manufacturing machine based at least in part on the data from the gaseous ionization detector. A computer-readable medium may include computer-executable instructions, which when executed by a processor associated with an additive manufacturing machine, cause the additive manufacturing machine to perform a method in accordance with the present disclosure.

公开(公告)号：US20240105368A1

公开(公告)日：2024-03-28

申请号：US18266007

申请日：2021-11-10

Applicant: TDK CORPORATION

Inventor： Atsushi KODA ,  Takahiro SUWA ,  Hikaru KUDO

IPC: H01F1/057 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16

CPC classification number: H01F1/0571 ,  B22F3/16 ,  B22F3/24 ,  B22F9/023 ,  B22F9/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2201/02 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00

Abstract: An R-T-B permanent magnet that contains: main-phase grains composed of an R2T14B compound (where R is a rare earth element, T is a transition metal element, and B is boron); and grain boundaries. R includes Ce. The grain boundaries include multi-grain grain boundaries that are adjacent to three or more main-phase grains. The multi-grain grain boundaries include an R-rich phase, and lamellar or acicular R-T precipitates are present in the R-rich phase.