公开(公告)号：US12119170B2

公开(公告)日：2024-10-15

申请号：US17126230

申请日：2020-12-18

Applicant: ABB Schweiz AG

Inventor： Reinhard Simon ,  Jacim Jacimovic ,  Lorenz Herrmann ,  Felix Greuter ,  Elio Perigo

IPC: B22F9/08 ,  B22F1/142 ,  C22C38/00 ,  G01N23/20091 ,  H01F1/053 ,  H01F41/02 ,  H01J49/10

CPC classification number: H01F41/0253 ,  B22F1/142 ,  B22F9/082 ,  C22C38/005 ,  G01N23/20091 ,  H01F1/053 ,  H01J49/105 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2304/10 ,  C22C2202/02

Abstract: The present disclosure provides a method for producing a magnetic powder and the use of a waste magnetic material for producing isotropic or anisotropic magnets. The method including providing a waste magnetic material including a waste magnetic chemical composition, analyzing the waste magnetic material to obtain information about the waste magnetic chemical composition thereof, adjusting the waste magnetic chemical composition to a target magnetic chemical composition to obtain an adjusted waste magnetic material, and atomizing the adjusted waste magnetic material to obtain the magnetic powder.

公开(公告)号：US12115585B2

公开(公告)日：2024-10-15

申请号：US16628088

申请日：2018-07-18

Applicant: NAXAU NEW MATERIALS CO., LTD. ,  AODOZ MEDICAL TECHNOLOGY CORPORATION

Inventor： Ansu Yuan ,  Zhenwei Wen

IPC: B22F9/12 ,  A61L27/30 ,  B22F1/05 ,  B22F1/054 ,  B22F1/145 ,  B22F1/16 ,  C23C14/06 ,  C23C14/08 ,  C23C14/14 ,  C23C14/16 ,  C23C14/22 ,  C23C14/32 ,  D06M11/32 ,  D06M11/58 ,  D06M11/83 ,  D06M16/00 ,  D06M23/08 ,  D06M23/12 ,  D06M101/04 ,  D06M101/16

CPC classification number: B22F9/12 ,  B22F1/054 ,  B22F1/145 ,  B22F1/16 ,  C23C14/0641 ,  C23C14/08 ,  C23C14/14 ,  C23C14/16 ,  C23C14/223 ,  C23C14/325 ,  D06M11/32 ,  D06M11/58 ,  D06M11/83 ,  D06M16/00 ,  D06M23/08 ,  D06M23/12 ,  A61L27/306 ,  B22F1/056 ,  B22F2201/20 ,  B22F2301/10 ,  B22F2301/255 ,  B22F2302/20 ,  B22F2302/25 ,  B22F2304/00 ,  D06M2101/04 ,  D06M2101/16 ,  D06M2200/00

Abstract: The present application relates to fiber cloth having functional composite particles and a preparation method therefor. The preparation method comprises: placing a solid metal block consisting of functional metal particles into a crucible using an evaporation and condensation process, and heating and evaporating the same into a vacuum physical vapor deposition (PVD) process furnace for condensation; depositing PVD ceramic layers on the outer surfaces of the functional metal particles under the condensed state using a PVD process to form the functional composite particles; and screening the functional composite particles by means of a particle filter and accelerating the particles to bombard the fiber cloth, thereby implanting the functional composite particles into the fiber cloth to form the fiber cloth having the functional composite particles. The functional composite particles in the present application can reduce contact between the internal functional metal particles and external oxygen, slowly release ionic metal ions of the functional metal particles, and prolong the action time of the functional metal particles. According to the present application, by implanting the functional composite particles into the fiber cloth, the fiber cloth with a long lasting antibacterial effect can be obtained.

公开(公告)号：US20240253120A1

公开(公告)日：2024-08-01

申请号：US18160941

申请日：2023-01-27

Applicant: Goodrich Corporation

Inventor： Callie L Benson ,  Sergey Mironets ,  Roque Panza Giosa

IPC: B22F3/16 ,  B22F3/00 ,  B22F3/12

CPC classification number: B22F3/16 ,  B22F3/003 ,  B22F3/1208 ,  B22F2201/11 ,  B22F2201/20

Abstract: A method for manufacturing near net shapes of complex configuration components. The method includes mixing a plurality of powdered metals to form a blended powder; gravity sintering a sand mold filled with the blended powder to form a gravity sintered preform; and vacuum hot-pressing the gravity sintered preform to form a near net shape component.

公开(公告)号：US20240212899A1

公开(公告)日：2024-06-27

申请号：US18486470

申请日：2023-10-13

Applicant: GRIREM HI-TECH CO., LTD. ,  GRIREM ADVANCED MATERIALS CO., LTD.

Inventor： Haijun PENG ,  Yang LUO ,  Zilong WANG ,  Shengjie ZHU ,  Dunbo YU ,  Hongbin ZHANG ,  Weikang SHAN ,  Tianjiao MA ,  Shuai CUI

IPC: H01F1/059 ,  B22F1/05 ,  B22F1/065 ,  B22F1/142 ,  B22F1/145 ,  B22F9/22 ,  C22C33/02 ,  C22C38/00

CPC classification number: H01F1/059 ,  B22F1/05 ,  B22F1/065 ,  B22F1/142 ,  B22F1/145 ,  B22F9/22 ,  C22C33/0235 ,  C22C38/001 ,  C22C38/005 ,  B22F2201/016 ,  B22F2201/02 ,  B22F2201/20 ,  B22F2301/355 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: Disclosed are anisotropic samarium-iron-nitrogen magnetic alloy powder and a preparation method therefor. The anisotropic samarium-iron-nitrogen magnetic alloy powder has a chemical formula of Sm2Fe17N3, and has a Th2Zn17 crystal structure. In the alloy powder, the granularity is: D90≤5 μm and D10≥0.5 μm, the average sphericity ≥0.7, the coercivity Hcj≥10 kOe, and the square degree Q≥0.5. The preparation method includes: S1: mixing iron powder, samarium oxide powder and calcium granules uniformly; S2: placing the mixture into a rotating heat treatment furnace, adding high-temperature-resistant balls, performing vacuumizing, introducing a reductive diffusion protective gas, and heating a furnace body; S3: cooling the furnace body, performing vacuumizing, and introducing a nitriding gas; and S4: taking out and separating the cooled powder and balls, washing the powder, and drying the powder in a vacuum environment to obtain the anisotropic samarium-iron-nitrogen magnetic alloy powder.

公开(公告)号：US20240194381A1

公开(公告)日：2024-06-13

申请号：US18582799

申请日：2024-02-21

Applicant: Noveon Magnetics Inc.

Inventor： Miha Zakotnik

IPC: H01F1/057 ,  B22F1/052 ,  B22F1/054 ,  B22F1/17 ,  B22F3/10 ,  B22F3/24 ,  B22F5/00 ,  B22F9/04 ,  B22F9/06 ,  C22C33/02 ,  C22C38/00 ,  H01F41/02

CPC classification number: H01F1/0577 ,  B22F1/052 ,  B22F1/17 ,  B22F3/1035 ,  B22F3/24 ,  B22F5/00 ,  B22F9/04 ,  C22C33/02 ,  C22C33/0207 ,  C22C38/00 ,  B22F1/054 ,  B22F1/056 ,  B22F2003/248 ,  B22F2009/044 ,  B22F9/06 ,  B22F2201/013 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2207/07 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  H01F41/0293

Abstract: The present disclosure is directed to methods of preparing permanent magnets having improved coercivity and remanence, the method comprising: (a) homogenizing a first population of particles of a first GBM alloy with a second population of particles of a second alloy to form a composite alloy preform, the first GBM alloy being represented by the formula: ACbRxCoyCudMz, the second alloy being represented by the formula G2Fe14B, where AC, R, M, G, b, x, y, and z are defined; (b) heating the composite alloy preform particles to form mixed alloy particles; (c) compressing the mixed alloy particles, under a magnetic field of a suitable strength to align the magnetic particles with a common direction of magnetization and inert atmosphere, to form a green body; (d) sintering the green body; and (e) annealing the sintered body. Embodiments include magnets comprising neodymium-iron-boron core alloys, including Nd2Fe14B.

公开(公告)号：US11975387B2

公开(公告)日：2024-05-07

申请号：US16972014

申请日：2019-06-14

Applicant: Boschman Technologies BV

Inventor： Johannes Cornelis de Beijer ,  Frank Boschman

IPC: H01L21/00 ,  B22F3/10 ,  H01L21/683

CPC classification number: B22F3/1007 ,  H01L21/683 ,  B22F2201/20

Abstract: A press sintering process product carrier for carrying at least one product to be sintered in a press sintering process comprises a top side; a product receiving recess defined in the top side, and configured for receiving the product(s) therein and for carrying the product(s) on a recess bottom of the product receiving recess; a top side surface surrounding the product receiving recess; a holding groove provided in the top side surface and surrounding the product receiving recess, and a vacuum connection in fluid connection with the holding groove to allow providing a vacuum in the holding groove for holding a film, foil or sheet of material provided over the product receiving recess and the holding groove; and a recess gas inlet arranged in the product receiving recess for introducing a gas into the product receiving recess, and a recess gas outlet arranged in the product receiving recess for extracting gas from the product receiving recess to allow providing a flow of gas from the recess gas inlet to the recess gas outlet for purging the product receiving recess.

公开(公告)号：US11919088B1

公开(公告)日：2024-03-05

申请号：US17576303

申请日：2022-01-14

Applicant: Rolls-Royce Corporation ,  Rolls-Royce High Temperature Composites Inc.

Inventor： Jeffrey Crutchfield ,  Andrew Ritchey

IPC: B22F7/08

CPC classification number: B22F7/08 ,  B22F2201/016 ,  B22F2201/02 ,  B22F2201/20 ,  B22F2302/105

Abstract: Methods of pressure assisted melt infiltration of fiber preforms are provided. The fiber preform is provided inside of a pressure vessel. The pressure vessel projects into a molten material contained in a crucible. The pressure vessel has an opening located below a surface of the molten material through which the molten material enters the pressure vessel. An end of the fiber preform contacts the molten material within the pressure vessel. The pressure vessel and crucible are located in a furnace. The molten material is pulled within the pressure vessel by increasing a first pressure at a first port of the furnace so the first pressure is higher than a second pressure at a second port of the pressure vessel. The second port is located above the molten material located within the pressure vessel. The fiber preform is infiltrated with the molten material.

公开(公告)号：US20240071658A1

公开(公告)日：2024-02-29

申请号：US18239751

申请日：2023-08-29

Applicant: Yantai Dongxing Magnetic Materials Inc.

Inventor： Xiulei CHEN ,  Zhongjie PENG ,  Zhanji DONG ,  Kaihong DING ,  Xiandong XU

IPC: H01F1/057 ,  B22F1/142 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  B22F9/08 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16

CPC classification number: H01F1/0577 ,  B22F1/142 ,  B22F3/16 ,  B22F3/24 ,  B22F9/023 ,  B22F9/04 ,  B22F9/08 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: The present disclosure discloses a cerium-added RE-T-B-M series sintered neodymium-iron-boron magnet, which relates to the technical field of neodymium-iron-boron permanent magnets, the structure of the magnet contains a RE2Fe14B main phase, a RE-rich phase, a REFe2 phase, and a sandwich grain boundary phase, wherein the sandwich grain boundary phase includes a RE-rich phase, a Fe-rich phase, and a REFe2 phase, and in the sandwich grain boundary phase, starting from the side near the grains of RE2Fe14B main phase, the first layer is the RE-rich phase, the second layer is the Fe-rich phase, and the third layer is the REFe2 phase, where RE includes cerium element and at least one of other rare earth elements, and the cerium element accounts for 3.0-15.0% by mass of the total elements, T is iron element and cobalt element, B is boron element, and M is Al, Cu, Ga, and Ti elements. A cerium-added RE-T-B-M series sintered neodymium-iron-boron magnet according to the present disclosure can alleviate the negative effects on the magnet due to the addition of cerium element.

公开(公告)号：US20240009738A1

公开(公告)日：2024-01-11

申请号：US18252996

申请日：2021-11-10

Applicant: Pro-Beam GmbH & Co. KGaA

Inventor： Thorsten LOWER

IPC: B22F10/40 ,  B22F10/28 ,  B33Y10/00 ,  B33Y30/00 ,  B22F12/20 ,  B22F12/41

CPC classification number: B22F10/40 ,  B22F10/28 ,  B33Y10/00 ,  B33Y30/00 ,  B22F12/20 ,  B22F12/41 ,  B22F2201/20 ,  B22F2998/10

Abstract: A method of additively manufacturing a workpiece (22) from a powder material, comprises the steps of:



(a) providing

a device (15, 17) for receiving a powder bed (20) of the powdery material, in particular in a vacuum process chamber (11), and
a beam generator (12) adapted to direct an energy beam (13) to laterally different locations of the powder bed (20);


b) layer-by-layer application of the powdery material to the powder bed (20);
c) creating the workpiece (22) in the powder bed (20) layer by layer by selectively bonding the powdery material to the energy beam (13);
d) during the production of the workpiece (22), in addition to the workpiece (22), a cooling structure (30) is produced in the powder bed (20) by selective bonding of the powdery material to the energy beam (13), the cooling structure (30) being adapted to dissipate heat.

公开(公告)号：US20240001440A1

公开(公告)日：2024-01-04

申请号：US18075741

申请日：2022-12-06

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Industry-University Cooperation Foundation Hanyang University ERICA Campus

Inventor： Bo Kyeong Han ,  Yong-Ho Choa ,  Saemee Yun ,  Jimin Lee ,  Byungkwon Jang

IPC: B22F1/142 ,  H01F1/057 ,  B22F9/04 ,  C01G49/00

CPC classification number: B22F1/142 ,  H01F1/057 ,  B22F9/04 ,  C01G49/009 ,  B22F2201/20

Abstract: Provided is a cleaning device for cleaning a magnet powder including: a flask provided to contain the magnet powder and a cleaning material used to clean the magnet powder; and a vacuum manifold provided to maintain the magnet powder and the cleaning material contained in the flask in an inert state during cleaning.
Provided is a method for cleaning a magnet powder including a loading operation for loading a magnet powder, a cleaning solution, and zeolite into a flask; a gas injecting operation for injecting an inert gas into the flask; and a vacuum drying operation for drying the magnet powder and the zeolite in a vacuum.
Provided is a method for manufacturing a magnet powder including: preparing a primary mixture by mixing neodymium (III) nitrate, boric acid, and iron (III) nitrate nonahydrate; preparing an oxide by heat-treating the primary mixture; removing a residual organic material of the oxide by heat-treating the oxide; preparing a hydrogen-reduced oxide by reacting the oxide, from which the residual organic material is removed, with hydrogen by heat treatment; preparing a secondary mixture by mixing the hydrogen-reduced oxide with calcium; obtaining a product by subjecting the secondary mixture to reduction-diffusion reaction by heat treatment; and obtaining Nd2Fe14B powder by pulverizing the product.