公开(公告)号：US12230425B2

公开(公告)日：2025-02-18

申请号：US17436260

申请日：2020-02-27

Applicant: Höganäs AB (Publ)

Inventor： Hilmar Vidarsson ,  Björn Skårman ,  Martin Häggblad Sahlberg ,  Samrand Shafeie

IPC: H01F1/147 ,  B22F1/054 ,  B22F1/142 ,  B22F9/04 ,  B22F9/08 ,  C22C1/04 ,  C22C22/00 ,  C22C32/00 ,  H01F1/047 ,  H01F41/02

Abstract: There is provided solid composite material comprising an alloy based on manganese, aluminum and optionally carbon, and dispersed nanoparticles made from a material X, as well as a method of manufacturing the same. The material X is different from manganese, aluminum, carbon or a mixture thereof and satisfying the following requirements the melting temperature of the material X is 1400° C. or higher, preferably 1500° C. or higher; and the material X comprises a metal. The composite material is suitable as a magnetic material or as a precursor of a magnetic material, and allows obtaining improved magnetic properties as compared to existing alloys based on manganese, aluminum and optionally carbon due the presence of the nanoparticles. A magnetic material in shaped form comprising the composite material and an electric or electronic device comprising the magnetic material are also part of the invention.

公开(公告)号：US12226819B2

公开(公告)日：2025-02-18

申请号：US17288924

申请日：2020-04-08

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY ,  GUANGDONG HUAYI PLUMBING FITTINGS INDUSTRY CO., LTD. ,  SUN YAT-SEN UNIVERSITY CANCER CENTER

Inventor： Chao Yang ,  Haizhou Lu ,  Yanfei Ding ,  Yuanyuan Li ,  Jin Wang

IPC: B22F1/00 ,  B22F1/05 ,  B22F1/14 ,  B22F1/17 ,  B22F9/08 ,  B22F10/28 ,  B22F10/34 ,  B22F10/36 ,  B22F10/366 ,  B23K26/342 ,  B23K103/14 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C22C1/04 ,  C22C14/00 ,  C22C19/00 ,  C22C19/03

Abstract: The present invention belongs to the field of additive manufacturing technology, and discloses a 4D printing method capable of in-situ regulating functional properties of nickel-titanium (NiTi) alloys and the application thereof. The method comprises the following steps: subjecting NiTi alloy bars to atomization milling to obtain NiTi alloy powder with a particle size of 15-53 μm, placing the NiTi alloy powder in a discharge plasma assisted ball mill for discharge treatment to promote the activation of powder activity, then adding nano-sized Ni powder with a particle size of 100-800 nm to obtain mixed powder, then continuing the discharge treatment to realize the metallurgical bonding between the NiTi alloy powder and the nano-sized Ni powder to obtain the modified powder, and finally using the additive manufacturing technology to prepare and form the modified powder into a functionalized NiTi alloy. The present invention achieves the metallurgical bonding between the nano-sized Ni powder and the large-sized spherical NiTi alloy powder by adding the nano-sized Ni powder in the process of discharge treatment, which is conducive to preparing a bulk alloy with uniform composition, structure and properties and the parts made therewith.

公开(公告)号：US20250018469A1

公开(公告)日：2025-01-16

申请号：US18497784

申请日：2023-10-30

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KOREA SINTERED METAL CO., LTD.

Inventor： Hak Soo Kim ,  Go Woon Jung ,  Jin Hyeon Lee ,  Jung Hyuk Kim ,  Joo Sung Park ,  Dong Kuk Jeong

IPC: B22F3/24 ,  B22F3/16 ,  B22F9/08 ,  C22C38/22

Abstract: A prealloy powder for powder metallurgy, a sintered part using the same, and a manufacturing method thereof, which is configured to prevent deterioration of core hardness along with surface hardening while maintaining excellent tensile strength by adjusting an alloy composition so that a bainite phase is formed. The sintered part, which is manufactured by powder metallurgy, includes 1.05 to 1.55 wt % of Cr, 0.3 to 0.5 wt % of Mo, 0.5 to 0.7 wt % of C, and a remaining of Fe and other unavoidable impurities.

公开(公告)号：US12180567B2

公开(公告)日：2024-12-31

申请号：US17803779

申请日：2022-11-21

Applicant: Iowa State University Research Foundation, Inc. ,  National Technology & Engineering Solutions of Sandia, LLC

Inventor： Iver E. Anderson ,  Emma Marie Hamilton White ,  Duane Johnson ,  Nicolas Argibay ,  Andrew B. Kustas ,  Michael Chandross ,  Raymond V. Puckett

IPC: B33Y70/00 ,  B22F9/08 ,  B33Y10/00 ,  C22C14/00 ,  C22C30/00 ,  B22F1/05 ,  B22F3/105 ,  B22F9/04 ,  B22F10/28

Abstract: Refractory-reinforced multiphase high entropy alloys (RHEAs) advantageously providing high strength and fracture toughness in an as-AM deposited condition and other conditions are described.

公开(公告)号：US20240390977A1

公开(公告)日：2024-11-28

申请号：US18788669

申请日：2024-07-30

Applicant: 3D LAB SP. Z O. O.

Inventor： Marcin BIELECKI ,  Robert RALOWICZ ,  Lukasz SLOBODA

IPC: B22F9/08 ,  B22F1/052 ,  B22F1/065 ,  B22F9/14 ,  B22F10/32 ,  B22F10/322 ,  B22F10/368 ,  B22F10/77 ,  B22F12/13 ,  B22F12/41 ,  B33Y40/10

Abstract: A device for production of heavy metal powders by ultrasonic atomization from a heavy metal raw material is provided. The device comprises a feeding means, a heat source, an adjusting means, and a collecting means. The feeding provides the heavy metal raw material in the vicinity of the heat source, and the heat source generates an electric arc to heat the heavy metal raw material to create a molten metal pool on a sonotrode. The sonotrode provides ultrasonic mechanical vibrations to the molten metal pool to cause heavy metal droplets to be ejected from the molten metal pool. The adjusting means adjusts the feeding means, the heating means, and the sonotrode to direct the heavy metal droplets to cause the heavy metal droplets to freely cool down within a predetermined distance and transform the heavy metal droplets to the heavy metal powder.

公开(公告)号：US12106892B2

公开(公告)日：2024-10-01

申请号：US17329741

申请日：2021-05-25

Applicant: Ford Global Technologies, LLC

Inventor： Chuanbing Rong ,  Feng Liang ,  Leyi Zhu ,  Michael W. Degner

IPC: H01F41/02 ,  B05C5/02 ,  B22F9/08 ,  B22F10/00 ,  B22F10/62 ,  B22F12/53 ,  B29C64/106 ,  B29C64/295 ,  H01F1/12 ,  B22F3/115 ,  B22F10/10 ,  B22F10/31 ,  B22F12/20 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: H01F41/0253 ,  B05C5/027 ,  B22F9/08 ,  B22F10/00 ,  B22F10/62 ,  B22F12/53 ,  B29C64/106 ,  B29C64/295 ,  H01F1/12 ,  H01F41/0206 ,  B22F3/115 ,  B22F2009/0876 ,  B22F2009/088 ,  B22F10/10 ,  B22F10/31 ,  B22F12/20 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  C22C2202/02

Abstract: A three-dimensional magnetic printer includes at least one induction head assembly including an induction heater to heat magnetic material to form an alloy melt and at least one nozzle operable to eject the alloy melt, a coating apparatus, and a base aligned with the at least one nozzle. The induction head assembly deposits at least one alloy melt layer and the coating apparatus forms at least one insulating layer onto the base in accordance with a predetermined pattern to form a three-dimensional article.

公开(公告)号：US20240304365A1

公开(公告)日：2024-09-12

申请号：US18276245

申请日：2022-02-10

Applicant: Proterial, Ltd.

Inventor： Shinya OKAMOTO ,  Atsuhiko ONUMA ,  Nobuyuki OKAMURA ,  Kousuke KUWABARA ,  Shunya ADACHI ,  Masahiro SATO ,  Takahiro ISHII

IPC: H01F1/055 ,  B22F9/08 ,  B22F10/28 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y80/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/30

CPC classification number: H01F1/055 ,  B22F9/082 ,  B22F10/28 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y80/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/30 ,  B22F2009/0824 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: The purpose of the present invention is to provide: an iron-chromium-cobalt alloy magnet having improved magnetic characteristics, especially maximum energy product; and a method for producing the same. Provided is an iron-chromium-cobalt alloy magnet, wherein: the iron-chromium-cobalt alloy magnet includes titanium; the number density of Ti-enriched phases having a maximum diameter of 3 μm or greater in a cross-section is, on average, less than 1.0 per 10,000 μm2; and the squareness ratio represented by (BH)ma×/(Br×HcB) exceeds 0.72.

公开(公告)号：US12084746B2

公开(公告)日：2024-09-10

申请号：US17288918

申请日：2020-01-03

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY ,  GUANGDONG HUAYI PLUMBING FITTINGS INDUSTRY CO., LTD. ,  SUN YAT-SEN UNIVERSITY CANCER CENTER

Inventor： Chao Yang ,  Haizhou Lu ,  Yanfei Ding ,  Yuanyuan Li ,  Jin Wang

IPC: C22C19/03 ,  B22F1/14 ,  B22F9/08 ,  B23K26/342 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C22C1/04 ,  C22C19/00 ,  B22F10/28 ,  B22F10/34 ,  B22F10/36 ,  B23K103/14

CPC classification number: C22C19/03 ,  B22F1/14 ,  B22F9/082 ,  B23K26/342 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C22C1/0433 ,  C22C19/007 ,  B22F2009/0836 ,  B22F10/28 ,  B22F10/34 ,  B22F10/36 ,  B22F2301/15 ,  B22F2304/10 ,  B23K2103/14 ,  B22F2998/10 ,  B22F2009/041 ,  B22F9/082 ,  B22F1/142 ,  B22F10/28

Abstract: Disclosed are a 4D printing method and application of titanium-nickel shape memory alloy. The 4D printing method comprises the following steps: mixing and smelting pure titanium and pure nickel to obtain titanium-nickel alloy bars, then preparing alloy powder by a rotating electrode atomization method, and sieving the powder to obtain titanium-nickel alloy powder with a particle size of 15-53 μm; placing the obtained titanium-nickel alloy powder in a discharge plasma assisted ball mill for discharge treatment to perform surface modification of the powder; and subjecting the titanium-nickel alloy powder to SLM forming to obtain the titanium-nickel shape memory alloy.

公开(公告)号：US20240279052A1

公开(公告)日：2024-08-22

申请号：US18681114

申请日：2022-08-02

Applicant: GRZ TECHNOLOGIES SA

Inventor： TAI SUN ,  NORIS GALLANDAT

IPC: C01B3/00 ,  B22F1/068 ,  B22F9/08 ,  C22C19/03

CPC classification number: C01B3/0057 ,  B22F1/068 ,  B22F9/08 ,  C22C19/03

Abstract: This invention relates to metal hydrides for storing hydrogen, in particular AB5 based metal hydrides, methods of production and uses thereof.

公开(公告)号：US12064816B2

公开(公告)日：2024-08-20

申请号：US17295059

申请日：2018-11-20

Applicant: HUNAN TERRY NEW MATERIALS CO., LTD

Inventor： Jinsong Huang ,  Xin Jin

IPC: B22F9/08 ,  B22F1/05

CPC classification number: B22F9/082 ,  B22F1/05 ,  B22F2009/0828 ,  B22F2009/086 ,  B22F2301/10

Abstract: A method for preparing metal powder by water atomization is disclosed. The method includes the steps of smelting, atomization, separation and drying, and the metal powder is freeze-dried in the drying step. Experiments show that freeze-drying is an important factor affecting oxygen content indexes of copper and copper alloys, and can be applied to the preparation of copper and copper alloy powder and even metal powder with low oxygen content. The method further considers all the details that may cause oxidation during the atomization process, and takes comprehensive measures to greatly reduce the probability of oxidization of copper and copper alloy powder, so that the oxygen content and oxidation of the water atomized powder are effectively reduced, and the water atomized powder is not easy to be oxidized during long-term storage.