公开(公告)号：US20240331897A1

公开(公告)日：2024-10-03

申请号：US18612422

申请日：2024-03-21

Applicant: TDK Corporation

Inventor： Lihua LIU

IPC: H01F1/057 ,  B22F3/14 ,  B22F3/17 ,  B22F9/00 ,  B22F9/08 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10

CPC classification number: H01F1/0571 ,  B22F3/14 ,  B22F3/17 ,  B22F9/008 ,  B22F9/082 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  B22F2009/0824 ,  B22F2301/355 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: A permanent magnet contains a rare-earth element R, a transition metal element T, and boron. The permanent magnet contains a plurality of main phase grains and a plurality of soft magnetic grains. The plurality of soft magnetic grains contain Fe. A cross-section of the permanent magnet includes a plurality of soft magnetic regions. The cross-section of the permanent magnet is parallel to an easy magnetization axis direction of the permanent magnet. Each of the plurality of soft magnetic regions contains the plurality of soft magnetic grains aligned along a direction orthogonal to the easy magnetization axis direction. The plurality of main phase grains and the plurality of soft magnetic regions are alternately disposed in the easy magnetization axis direction. An average value of width of the plurality of soft magnetic grains in the easy magnetization axis direction ranges from 20 nm to 5 μm.

公开(公告)号：US20240247344A1

公开(公告)日：2024-07-25

申请号：US18624400

申请日：2024-04-02

Applicant: Diamond Innovations, Inc.

Inventor： Lawrence Dues

IPC: C22C26/00 ,  B22F3/14 ,  B22F7/06 ,  C22C29/06

CPC classification number: C22C26/00 ,  B22F3/14 ,  B22F7/06 ,  C22C29/06 ,  B22F2302/10 ,  B22F2302/205 ,  C22C2026/006

Abstract: The present application is a new improvement in the fine-grained cubic boron nitride sintered compact which may be employed to manufacture a cutting tool. The compact contains at least 80 vol % cBN with a metallic binder system and is sintered under HPHT conditions. The improvement incorporates alloys of aluminum in the metallic binder system. The invention has proved beneficial in the machining of cast iron.

公开(公告)号：US12042868B2

公开(公告)日：2024-07-23

申请号：US17336637

申请日：2021-06-02

Applicant: Saudi Arabian Oil Company ,  Chengdu Dongwei Technology Co., LTD

Inventor： Guodong Zhan ,  Timothy E. Moellendick ,  Bodong Li ,  Chinthaka Pasan Gooneratne ,  Duanwei He ,  Jianhui Xu

IPC: B22F7/08 ,  B22F3/105 ,  B22F3/14 ,  B22F5/00 ,  E21B10/46

CPC classification number: B22F7/08 ,  B22F3/105 ,  B22F3/14 ,  B22F5/00 ,  E21B10/46 ,  B22F2003/1051 ,  B22F2003/1054 ,  B22F2005/001 ,  B22F2301/15 ,  B22F2302/10 ,  B22F2302/406

Abstract: Cutters for a downhole drill bit can be formed by providing a catalyst-free synthesized polycrystalline diamond (PCD) having a cross-sectional dimension of at least 8 millimeters; providing a substrate comprising tungsten carbide; and attaching the synthesized PCD to the substrate comprising tungsten carbide to form a PDC cutter.

公开(公告)号：US12030122B2

公开(公告)日：2024-07-09

申请号：US17075693

申请日：2020-10-21

Applicant: JFE STEEL CORPORATION ,  TOKIN CORPORATION ,  National Institute of Advanced Industrial Science and Technology

Inventor： Naomichi Nakamura ,  Makoto Nakaseko ,  Takuya Takashita ,  Mineo Muraki ,  Hoshiaki Terao ,  Raita Wada ,  Akiri Urata ,  Yu Kanamori ,  Makoto Yamaki ,  Koichi Okamoto ,  Toshinori Tsuda ,  Shoichi Sato ,  Kimihiro Ozaki

IPC: B22F3/14 ,  B22F1/00 ,  B22F1/02 ,  B22F1/08 ,  B22F1/102 ,  B22F1/16 ,  B22F3/00 ,  B22F3/02 ,  B22F3/03 ,  C22C33/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/16 ,  C22C45/02 ,  H01F1/153 ,  H01F3/08 ,  H01F41/02 ,  H01F27/255

CPC classification number: B22F3/14 ,  B22F1/00 ,  B22F1/08 ,  B22F1/102 ,  B22F1/16 ,  B22F3/00 ,  B22F3/02 ,  B22F3/03 ,  C22C33/02 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/16 ,  C22C45/02 ,  H01F1/15308 ,  H01F1/15325 ,  H01F1/15333 ,  H01F1/15375 ,  H01F3/08 ,  H01F41/0246 ,  B22F2301/35 ,  B22F2304/10 ,  C22C2200/02 ,  C22C2200/04 ,  C22C2202/02 ,  H01F27/255

Abstract: Provided is a method of manufacturing a soft magnetic dust core. The method includes: preparing coated powder including amorphous powder made of an Fe-B-Si-P-C-Cu-based alloy, an Fe-B-P-C-Cu-based alloy, an Fe-B-Si-P-Cu-based alloy, or an Fe-B-P-Cu-based alloy, with a first initial crystallization temperature Tx1 and a second initial crystallization temperature Tx2; and a coating formed on a surface of particles of the amorphous powder; applying a compacting pressure to the coated powder or a mixture of the coated powder and the amorphous powder at a temperature equal to or lower than Tx1−100 K; and heating to a maximum end-point temperature equal to or higher than Tx1−50 K and lower than Tx2 with the compacting pressure being applied.

公开(公告)号：US12017280B2

公开(公告)日：2024-06-25

申请号：US17415300

申请日：2019-12-21

Applicant: Hilti Aktiengesellschaft

Inventor： Marcel Sonderegger ,  Cliff Toldo

IPC: B22F3/14 ,  B22F5/00 ,  B22F7/08

CPC classification number: B22F3/14 ,  B22F7/08 ,  B22F2005/001 ,  B22F2005/005 ,  B22F2999/00

Abstract: A method for producing a green body for a machining segment, where the machining segment is connectable to a basic body of a machining tool by an underside of the machining segment, includes placing first hard material particles in a matrix material in a defined particle pattern. The first hard material particles are placed in the matrix material with a respective projection with respect to the matrix material.

公开(公告)号：US11976345B2

公开(公告)日：2024-05-07

申请号：US17254151

申请日：2018-06-28

Applicant: DIAMOND INNOVATIONS, INC.

Inventor： Lawrence Dues

IPC: C22C26/00 ,  B22F3/14 ,  B22F7/06 ,  C22C29/06

CPC classification number: C22C26/00 ,  B22F3/14 ,  B22F7/06 ,  C22C29/06 ,  B22F2302/10 ,  B22F2302/205 ,  C22C2026/006

Abstract: The present application is a new improvement in the fine-grained cubic boron nitride sintered compact which may be employed to manufacture a cutting tool. The compact contains at least 80 vol % cBN with a metallic binder system and is sintered under HPHT conditions. The improvement incorporates alloys of aluminum in the metallic binder system.

公开(公告)号：US20240091862A1

公开(公告)日：2024-03-21

申请号：US18038794

申请日：2021-11-29

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hirotsugu IWASAKI ,  Akihiko UEDA ,  Satoru KUKINO

IPC: B23B27/14 ,  B22F3/14 ,  B22F5/00 ,  B22F9/04 ,  C22C1/05 ,  C22C26/00

CPC classification number: B23B27/148 ,  B22F3/14 ,  B22F5/00 ,  B22F9/04 ,  C22C1/05 ,  C22C26/00 ,  B22F2005/001 ,  B22F2302/406 ,  B22F2998/10 ,  B22F2999/00 ,  B23B2226/31

Abstract: A sintered material includes diamond grains and a binder. A boron concentration in the diamond grains is more than or equal to 0.001 mass % and less than or equal to 0.9 mass %. A boron concentration in the binder is more than or equal to 0.5 mass % and less than or equal to 40 mass %.

公开(公告)号：US11933107B2

公开(公告)日：2024-03-19

申请号：US17295772

申请日：2019-10-31

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： Bjorn Claesson ,  Stefan Ederyd ,  Johan Sundstrom ,  Tomas Berglund ,  Fredrik Meurling

IPC: E21B10/12 ,  B22F3/14 ,  B22F7/08 ,  C22C9/00 ,  C22C19/03 ,  C22C29/02 ,  E21B10/573 ,  E21C27/22 ,  B22F5/00

CPC classification number: E21B10/12 ,  B22F3/14 ,  B22F7/08 ,  C22C9/00 ,  C22C19/03 ,  C22C29/02 ,  E21B10/573 ,  E21C27/22 ,  B22F2005/001 ,  B22F2998/10

Abstract: A disc cutter for a cutting unit used in an undercutting operation and a method of producing the same. The disc cutter including an annular disc body made of a metal alloy or metal matrix composite having a first side, a second side arranged substantially opposite to the first side and a radially peripheral part. At least one metal alloy, metal matrix composite or cemented carbide cutting part is mounted in and substantially encircling the radially peripheral part of the disc body which protrudes outwardly therefrom to engage with the rock during the mining operation. The at least one cutting part is made from a material having a higher wear resistance than the material used for the disc body, wherein the disc body and the cutting part are joined by diffusion bonds.

公开(公告)号：US11839917B2

公开(公告)日：2023-12-12

申请号：US16644434

申请日：2019-09-11

Applicant: US SYNTHETIC CORPORATION

Inventor： Debkumar Mukhopadhyay

IPC: B22F7/06 ,  B22F3/14 ,  C22C29/02 ,  E21B10/567

CPC classification number: B22F7/06 ,  B22F3/14 ,  C22C29/02 ,  E21B10/567 ,  B22F2302/10 ,  B22F2302/406 ,  B22F2304/10

Abstract: Embodiments disclosed herein relate to polycrystalline diamond compacts that have a substrate including a cementing constituent constituting less than 13 weight percent (wt %) of the substrate, the cementing constituent including a cobalt alloy having and at least one alloying element, wherein the at least one alloying element constitutes less than 12 wt % of the substrate and wherein the cobalt constitutes less than 12 wt % of the substrate; and methods of making the same.

公开(公告)号：US20230391508A1

公开(公告)日：2023-12-07

申请号：US18033135

申请日：2021-10-18

Applicant: FEURER FEBRA GMBH

Inventor： Oleg GOSS

IPC: B65D25/10 ,  B22F3/14

CPC classification number: B65D25/107 ,  B22F3/14

Abstract: The invention relates to a charge carrier (10) with a main body (12) made of a particle foam, in particular of expanded polypropylene (EPP) or of expanded polyurethane (EPU), and with at least one functional element (20), which consists of a material that is harder than the particle foam. According to the invention, it is provided that the main body (12) has a depression (26) for each functional element (20), the depression being assigned to the respective element and having extending from it, in two mutually facing boundary surfaces (36), a respective receiving channel (38) which is bounded on three sides by the main body (12) and is open towards the depression (26), and that each functional element (20) has an anchoring portion (28), which protrudes into the depression (26) assigned to it and has retaining ribs (32) which project away from one another and each engage in one of the receiving channels.