公开(公告)号：US20250019803A1

公开(公告)日：2025-01-16

申请号：US18697805

申请日：2023-03-02

Applicant: DAICEL CORPORATION ,  OSAKA UNIVERSITY

Inventor： Yuto MAKINO ,  Kenichi TANIGAKI

IPC: C22C26/00 ,  B22F1/18 ,  B22F3/105 ,  B22F3/24 ,  B22F9/04 ,  C22C1/059

Abstract: The present invention provides an Al-ND-based composite material in which nanodiamond (ND) particles are dispersed in an aluminum (Al)-based metal matrix.

公开(公告)号：US20250018473A1

公开(公告)日：2025-01-16

申请号：US18899485

申请日：2024-09-27

Applicant: K.K. SUN METALON

Inventor： Kazuhiko NISHIOKA ,  Koji KAGEYAMA

IPC: B22F10/22 ,  B22F1/12 ,  B22F3/00 ,  B22F3/105 ,  B22F3/14 ,  B22F3/16 ,  B22F3/24 ,  B22F5/00 ,  B22F7/02 ,  B22F7/04 ,  B22F7/08 ,  B22F9/20 ,  B22F10/10 ,  B22F10/20 ,  B22F10/66 ,  B22F12/41 ,  B22F12/50 ,  B22F12/70 ,  B23K1/005 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10

Abstract: Provided is a method for producing a metal solid, the method being capable of easily producing a metal solid. A method for producing a metal solid, the method comprising covering at least a portion of the periphery of a metal powder with a high-melting-point material having a melting point higher than the melting point of the metal powder; and irradiating the metal powder, at least a portion of the periphery of which is covered with the high-melting-point material, with microwaves to heat the metal powder, thereby sintering or melt-solidifying the metal powder.

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：US12186807B2

公开(公告)日：2025-01-07

申请号：US17992400

申请日：2022-11-22

Applicant: Powdermet, Inc.

Inventor： Mark Grogan ,  Brian Doud ,  Andrew Sherman

IPC: B22F3/105 ,  B22F1/17 ,  B22F3/14 ,  B22F3/15 ,  B22F3/17 ,  B22F3/18 ,  B22F3/20 ,  B22F3/24 ,  B23H1/08 ,  B23H5/04 ,  B23H5/12 ,  B23H7/00 ,  B23P13/02 ,  C04B35/56 ,  C04B35/58 ,  C22C29/00 ,  C22C29/06 ,  C22C29/08 ,  C22C29/14 ,  C22C32/00 ,  F16C33/00 ,  F16C17/00 ,  F16C19/00 ,  F16C33/04

Abstract: A heterogeneous composite consisting of near-nano ceramic clusters dispersed within a ductile matrix. The composite is formed through the high temperature compaction of a starting powder consisting of a core of ceramic nanoparticles held together with metallic binder. This core is clad with a ductile metal such that when the final powder is consolidated, the ductile metal forms a tough, near-zero contiguity matrix. The material is consolidated using any means that will maintain its heterogeneous structure.

公开(公告)号：US20250006411A1

公开(公告)日：2025-01-02

申请号：US18694374

申请日：2022-09-22

Applicant: YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD. ,  JIANGHUA ZHENGHAI MINMETALS ADVANCED MATERIALS CO., LTD.

Inventor： Yongjiang YU ,  Lei LIU ,  You Hua WANG ,  Dan MA ,  Yunying JIANG

IPC: H01F1/057 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C22C33/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16

Abstract: A high-remanence neodymium-iron-boron magnet, and a preparation method and the use thereof are provided. The neodymium-iron-boron magnet has crystal grains with an R-T-B type compound as a main structure, and a grain boundary phase. By means of adjusting the proportional relation of elements such as B, Cu, Ga, RE and Ti, the neodymium-iron-boron magnet can achieve a relatively high main phase grain volume ratio and effectively restrain the proportion of a B-rich phase in the grain boundary phase, such that the magnet has relatively high Br, and also has both good Hcj and squareness performance.

公开(公告)号：US20240424564A1

公开(公告)日：2024-12-26

申请号：US18732735

申请日：2024-06-04

Applicant: SUGINO MACHINE LIMITED

Inventor： Ignacio GARCIA ,  Taiki MATSUI

IPC: B22F10/68 ,  B22F3/24 ,  B22F10/40 ,  B33Y40/20

Abstract: Removal of the support structure from the workpiece is in an easily automated way. A method for removing support structure includes: suspending abrasive into a process liquid; cutting a support structure along a cutting surface from an additively manufactured workpiece having a support surface, the support surface including the support structure for fixing the workpiece to a build platform; installing the workpiece with the support structure remaining on the support surface in the process liquid with suspended abrasive; immersing a nozzle for ejecting a cavitation jet of the process liquid into the process liquid; and ejecting the cavitation jet onto the workpiece from the nozzle immersed in the process liquid such that an angle between an ejection axis of the cavitation jet ejected from the nozzle and the support surface is between 0 to 20 degrees to remove the remaining support structure adhered to the workpiece.

公开(公告)号：US12168818B2

公开(公告)日：2024-12-17

申请号：US18301024

申请日：2023-04-14

Applicant: HÖGANÄS AB (PUBL)

Inventor： Caroline Larsson ,  Ulf Engström ,  Christophe Szabo

IPC: C22C33/02 ,  B22F1/05 ,  B22F1/052 ,  B22F1/06 ,  B22F1/10 ,  B22F1/17 ,  B22F3/16 ,  B22F3/24 ,  B22F9/04 ,  C22C38/16

Abstract: A diffusion-bonded powder having an iron powder having 1-5%, preferably 1.5-4% and most preferably 1.5-3.5% by weight of copper particles diffusion bonded to the surfaces of the iron powder particles. The diffusion bonded powder is suitable for producing components having high sintered density and minimum variation in copper content. The iron powder may be produced by providing an atomized iron powder with an oxygen content of 0.3-1.2% by weight and with a carbon content of 0.1-0.5% by weight, and subjecting the atomized iron powder and a copper containing powder to a reduction annealing process in a reducing atmosphere to obtain the iron based powder.

公开(公告)号：US12134128B2

公开(公告)日：2024-11-05

申请号：US17533074

申请日：2021-11-22

Applicant: CENTRAL SOUTH UNIVERSITY

Inventor： Zuming Liu ,  Sizhe Lu ,  Quan Li ,  Bing Wei ,  Xu Zhou ,  Bizhong Nong ,  Yake Ren ,  Yongkang Ai ,  Bin Cao

IPC: B22F9/04 ,  B22F1/0545 ,  B22F1/065 ,  B22F1/142 ,  B22F1/145 ,  B22F3/15 ,  B22F3/18 ,  B22F3/24 ,  C22C32/00

Abstract: A method for preparing a nano spherical oxide dispersion strengthening phase using a micron oxide is proposed for the first time. First, a micron oxide is used as a raw material to prepare a nano oxide with a completely amorphous structure/matrix alloy composite powder by mechanical ball milling in stages. In the first stage, ball milling is performed, causing the oxide to break and transform in structure, and achieving nano-sizing and completely amorphization, to prepare a composite powder with a completely amorphous structure nano oxide uniformly distributed in the matrix alloy powder; and in the second stage, the composite powder obtained in the first stage and the remaining matrix alloy powder are uniformly mixed by ball milling. Then, the uniformly mixed powder is sequentially subjected to hot forming, hot rolling, and heat treatment, to obtain a nano spherical oxide dispersion strengthened alloy.

公开(公告)号：US20240355515A1

公开(公告)日：2024-10-24

申请号：US18548206

申请日：2022-01-17

Applicant: FUJIAN GOLDEN DRAGON RARE-EARTH Co., Ltd.

Inventor： Weiguo Mou ,  Jiaying Huang

IPC: H01F1/057 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C21D1/84 ,  C21D6/00 ,  C22C33/04 ,  C22C38/00 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  H01F41/02

CPC classification number: H01F1/0577 ,  B22F3/16 ,  B22F3/24 ,  B22F9/023 ,  B22F9/04 ,  C21D1/84 ,  C21D6/007 ,  C22C33/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  H01F41/0293 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: Disclosed are an R-T-B magnet and a preparation method therefor. The R-T-B magnet comprises the following components: R≥29 wt. %, R being a rare earth element and containing Nd, wherein Nd is ≥22 wt. %; 0.2-0.75 wt. % of Ti+Nb; 0.05-0.45 wt. % of Cu; 0.955-1.15 wt. % of B; and 58-69 wt. % of Fe, wherein wt. % is the ratio of the mass of each component to the total mass of the components; and the mass ratio of Ti to Nb is (1-5):1. According to the present invention, the matching relationship among the added elements in the R-T-B magnet is further optimized, and an R-T-B magnet with better magnetic properties such as relatively high residual magnetization, coercivity, and squareness can be prepared by using the formula.

公开(公告)号：US20240351167A1

公开(公告)日：2024-10-24

申请号：US18759914

申请日：2024-06-30

Applicant: US Synthetic Corporation

Inventor： Daren Nathaniel Heaton ,  Jeremy Brett Lynn ,  Mark Pehrson Chapman ,  Oakley D. Bond

IPC: B24D3/00 ,  B22F3/24 ,  B24D3/10 ,  B24D18/00 ,  B24D99/00 ,  C25F3/02 ,  C25F7/00 ,  F16C17/02 ,  F16C17/04 ,  F16C33/04 ,  F16C33/26

CPC classification number: B24D3/005 ,  B22F3/24 ,  B24D3/10 ,  B24D18/00 ,  B24D18/0009 ,  B24D99/005 ,  C25F3/02 ,  C25F7/00 ,  F16C33/043 ,  F16C33/26 ,  B22F2003/244 ,  B22F2999/00 ,  F16C17/02 ,  F16C17/04

Abstract: Superabrasive elements may be produced by methods including leaching the metallic material from the superabrasive element to produce a leached volume by exposing at least a portion of the superabrasive element to a processing solution, exposing an electrode to the processing solution, and applying a charge to the electrode such that a voltage is generated between the superabrasive element and the electrode and the voltage is applied to the processing solution.