公开(公告)号：US12110576B2

公开(公告)日：2024-10-08

申请号：US17636602

申请日：2020-08-27

申请人： Hitachi Metals, Ltd.

发明人： Hiroshi Shiratori ,  Kazuya Shinagawa ,  Shuho Koseki ,  Kousuke Kuwabara ,  Yasuhiko Otsubo ,  Shinya Okamoto

IPC分类号： C22C32/00 ,  B22F1/00 ,  B22F10/64 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  C22C29/08

CPC分类号： C22C32/0052 ,  B22F1/00 ,  B22F10/64 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  C22C29/08 ,  B22F2201/10 ,  B22F2302/10 ,  Y10T428/12014

摘要： Provided are a WC-based cemented carbide powder from which a WC-based cemented carbide member excellent in high thermal conductivity and high abrasion resistance can be manufactured, a WC-based cemented carbide member, and a manufacturing method for a WC-based cemented carbide member. The WC-based cemented carbide powder of the present invention includes WC, Cu, and at least one of Co, Fe, and Cr. The content of WC is equal to or more than 40 mass %, the content of at least one of Co, Fe, and Cr is equal to or more than 25 mass % and less than 60 mass %, and the ratio a/b of the content ‘a’ of Cu and the content ‘b’ of at least one of Co, Fe, and Cr satisfies 0.070≤a/b≤1.000.

公开(公告)号：US12104229B1

公开(公告)日：2024-10-01

申请号：US18572807

申请日：2023-05-12

申请人： Sumitomo Electric Hardmetal Corp.

发明人： Tomoyuki Ishida ,  Yuki Tanaka ,  Kazuhiro Hirose ,  Yasuki Kido

IPC分类号： C22C29/08 ,  C22C29/02 ,  C22C29/06

CPC分类号： C22C29/08 ,  C22C29/02 ,  C22C29/067

摘要： A cemented carbide is composed of a first hard phase, a second hard phase, and a binder phase, wherein the first hard phase is composed of tungsten carbide particles and having a particle diameter D10 of 0.30 μm to 0.60 μm, a particle diameter D90 of 0.90 μm to 1.40 μm, the second hard phase contains at least one first compound selected from the group consisting of TiNbC, TiNbN, and TiNbCN, and having an average particle diameter of 0.03 μm to 0.50 μm, a content of the binder phase in the cemented carbide is 8.0 vol % to 16.0 vol %, an average particle diameter of the binder phase is 0.15 μm to 0.45, a particle diameter D95 of the binder phase is 1.5 μm or less, and a degree of dispersion of the binder phase is 0.15 to 0.25.

公开(公告)号：US20240318285A1

公开(公告)日：2024-09-26

申请号：US18580620

申请日：2022-03-29

申请人： Sumitomo Electric Hardmetal Corp.

发明人： Tomoyuki ISHIDA ,  Yuki TANAKA ,  Kazuhiro HIROSE

IPC分类号： C22C29/08 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C22C1/051 ,  C22C29/06

CPC分类号： C22C29/08 ,  B22F3/16 ,  B22F3/24 ,  B22F9/026 ,  B22F9/04 ,  C22C1/051 ,  C22C29/067 ,  B22F2003/248 ,  B22F2009/043 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2301/15 ,  B22F2302/10 ,  B22F2998/10 ,  B22F2999/00

摘要： A cemented carbide is a cemented carbide, composed of: hard phases comprising tungsten carbide as a main ingredient and binder phases comprising cobalt as a main ingredient, wherein the hard phases have a ratio D10/D90 of D10 being an area-based 10% cumulative particle size to D90 being an area-based 90% cumulative particle size of 0.30 or more, the binder phases have a ratio D10/D90 of D10 being an area-based 10% cumulative particle size to D90 being an area-based 90% cumulative particle size of 0.23 or more, wherein the binder phases have an average particle size of 0.25 μm or more and 0.50 μm or less, and wherein the hard phases have an average particle size of 0.30 μm or more and 0.60 μm or less.

公开(公告)号：US20240287657A1

公开(公告)日：2024-08-29

申请号：US18443995

申请日：2024-02-16

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Ramasis Goswami ,  Alex E. Moser

IPC分类号： C22C29/08 ,  B22F9/04 ,  C22C1/051 ,  C22C29/06

CPC分类号： C22C29/08 ,  B22F9/04 ,  C22C1/051 ,  C22C29/067 ,  B22F2009/044

摘要： A dual phase high entropy boride-carbide composite for extreme environments, comprising dual phases of high entropy boride (HEB) and high entropy carbide (HEC), wherein the high entropy boride comprises (Zr—Hf—Ti—V)B2 and wherein the high entropy carbide comprises (Zr—Hf—Ti—V)C. A method of making a dual phase high entropy boride-carbide composite for extreme environments, comprising the steps of utilizing a pressureless reactive sintering process, providing a Zr—Hf—Ti—V—B4C powder blend, maintaining a low sintering temperature, allowing the Zr—Hf—Ti—V—B4C powder blend to result in HE-Alloy powder and B4C, allowing the B4C to result in 4B and C and heat, reacting the HE-Alloy powder with the B and the C, and forming a HE-boride composite and a HE-carbide composite, wherein the HE-boride composite and HE-carbide composite comprise (Zr—Hf—Ti—V)B2+(Zr—Hf—Ti—V)C.

公开(公告)号：US11890769B2

公开(公告)日：2024-02-06

申请号：US17415114

申请日：2019-11-27

申请人： CERATIZIT COMO S.P.A.

发明人： Antonello Valsecchi ,  Bernardo Bezzola

IPC分类号： B26D7/08 ,  B26D1/00 ,  B26D7/26 ,  C22C29/06 ,  C22C29/08

CPC分类号： B26D7/086 ,  B26D1/0006 ,  B26D7/2614 ,  B26D2001/002 ,  C22C29/067 ,  C22C29/08 ,  Y10S83/956

摘要： An ultrasonic knife has a cutting portion formed with at least one cutting edge and a fastening portion. The fastening portion has an external thread for connection to a sonotrode. The cutting portion and the fastening portion are formed in one piece from cemented carbide material. The cemented carbide material includes hard particles that are, at least predominantly, formed by tungsten carbide and a metallic binder. The external thread of the fastening portion has a thread pitch p and is shaped such that the root of the thread turns has a rounded shape with a root radius R of 0.2*p≤R≤0.3*p.

公开(公告)号：US20240035125A1

公开(公告)日：2024-02-01

申请号：US18379825

申请日：2023-10-13

申请人： Kennametal Inc.

发明人： Manfred Wolf ,  Armin Helldoerfer

IPC分类号： C22C29/08 ,  C22C29/06

CPC分类号： C22C29/08 ,  C22C29/067

摘要： Sintered cemented carbides are described herein exhibiting enhanced high temperature properties without dramatic losses in bending strength. In some embodiments, a sintered cemented carbide composition comprises tungsten carbide, a metallic binder phase comprising at least one metal of the iron group, and at least one solid solution carbide phase comprising tantalum (Ta) and molybdenum (Mo), wherein a value of (Mo/Ta) in the sintered cemented carbide composition is from 0.3-100, and the sintered cemented carbide composition has a transverse rupture strength of at least 4000 MPa.

公开(公告)号：US20230364674A1

公开(公告)日：2023-11-16

申请号：US17801169

申请日：2021-02-22

申请人： ROVALMA, S.A.

发明人： Isaac VALLS ANGLÉS

IPC分类号： B22F3/14 ,  B22F10/28 ,  B33Y80/00 ,  B22F10/14 ,  B22F5/08 ,  B33Y10/00 ,  B22F3/12 ,  B22F5/00 ,  C22C38/58 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/38 ,  C22C38/28 ,  C22C38/06 ,  C22C38/04 ,  C22C38/00 ,  C22C38/30 ,  C22C38/02 ,  C22C38/24 ,  C22C38/22 ,  C22C38/20 ,  C22C38/46 ,  C22C38/52 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C14/00 ,  C22C19/05 ,  C22C9/04 ,  C22C9/06 ,  C22C9/02 ,  C22C9/01 ,  C22C19/07 ,  C22C21/18 ,  C22C21/16 ,  C22C21/06 ,  C22C23/02 ,  C22C29/08 ,  C22C29/06 ,  C22C29/10 ,  B22F3/24

CPC分类号： B22F3/14 ,  B22F10/28 ,  B33Y80/00 ,  B22F10/14 ,  B22F5/08 ,  B33Y10/00 ,  B22F3/1258 ,  B22F5/007 ,  C22C38/58 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/38 ,  C22C38/28 ,  C22C38/06 ,  C22C38/04 ,  C22C38/002 ,  C22C38/001 ,  C22C38/30 ,  C22C38/02 ,  C22C38/24 ,  C22C38/22 ,  C22C38/20 ,  C22C38/46 ,  C22C38/52 ,  C22C38/005 ,  C22C38/008 ,  C22C38/105 ,  C22C38/12 ,  C22C38/14 ,  C22C14/00 ,  C22C19/057 ,  C22C19/056 ,  C22C19/055 ,  C22C19/053 ,  C22C9/04 ,  C22C9/06 ,  C22C9/02 ,  C22C9/01 ,  C22C19/07 ,  C22C21/18 ,  C22C21/16 ,  C22C21/06 ,  C22C23/02 ,  C22C29/08 ,  C22C29/067 ,  C22C29/10 ,  B22F3/24 ,  B22F2998/10 ,  B22F2301/35 ,  B22F2301/205 ,  B22F2301/15 ,  B22F2301/10 ,  B22F2301/052 ,  B22F2301/058 ,  B22F2302/10 ,  B22F2003/247 ,  B22F2003/248

摘要： The present invention relates to a method for producing metal-comprising geometrically complex pieces and/or parts. The method is specially indicated for highly performant components. It is disclosed a method for the production of complex geometry, and even large, highly performant metal-comprising components in a cost effective way. The method is also indicated for the construction of components with internal features and voids. The method is also beneficial for light construction. The method allows the reproduction of bio-mimetic structures and other advanced structures for topological performance optimization.

公开(公告)号：US11798751B2

公开(公告)日：2023-10-24

申请号：US17363126

申请日：2021-06-30

申请人： Siemens Industry, Inc.

发明人： Roberto Carlos Hernandez Maya ,  Luis Miguel Franco Caballero ,  Francisco Franco Caballero

IPC分类号： H01H1/025 ,  C22C9/00 ,  C22C29/00 ,  C22C29/08

CPC分类号： H01H1/025 ,  C22C9/00 ,  C22C29/005 ,  C22C29/08

摘要： A metal contact of a residential circuit breaker with ordered ceramic microparticles is provided. The metal contact comprises an electrical contact material comprising a metal alloy and ceramic particles to form a metal matrix composite material. Both materials the metal alloy and the ceramic particles are present together as a metal compound but without forming an alloy. The metal compound is a matrix and reinforcement being the ceramic particles such that first the ceramic particles has a sintering step to get a homogeneous preform for the metal compound being porous with a controlled size obtained by pressing a particle size of about few micrometers of the ceramic particles and then a liquid metal infiltration step to provide a homogenous distribution of the metal alloy and the ceramic particles in a three-dimensional open porous arrangement and the homogenous distribution results in ordered microstructures.

公开(公告)号：US11717978B2

公开(公告)日：2023-08-08

申请号：US17414023

申请日：2020-08-11

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Kensei Hamaki ,  Takato Yamanishi ,  Keiichi Tsuda

IPC分类号： C22C29/08 ,  B26D1/00 ,  C22C1/051 ,  C22C19/03 ,  C22C19/07 ,  C22C29/06

CPC分类号： B26D1/0006 ,  C22C1/051 ,  C22C19/03 ,  C22C19/07 ,  C22C29/067 ,  C22C29/08 ,  B26D2001/002

摘要： A cemented carbide includes a first hard phase and a binder phase. The first hard phase is composed of tungsten carbide grains. The binder phase includes cobalt and nickel as constituent elements. An arbitrary surface or arbitrary cross section of the cemented carbide has: a region R1 interposed between an interface between the tungsten carbide grains and the binder phase and an imaginary line A; a region R2 interposed between the imaginary line A and an imaginary line B; and a region R3 other than the region R1 and R2. When a line analysis is performed in a range including the region R1 and the region R3 adjacent to the region R1 with the region R2, a ratio C5/C20 of a maximum atomic concentration C5 at % of cobalt in the region R1 and a maximum atomic concentration C20 at % of cobalt in the region R3 is more than 1.

公开(公告)号：US20190242191A1

公开(公告)日：2019-08-08

申请号：US16240751

申请日：2019-01-06

申请人： Wenhui Jiang

发明人： Wenhui Jiang

IPC分类号： E21B10/573 ,  C04B37/02 ,  C22C29/08 ,  C22C26/00 ,  B22F7/06

CPC分类号： E21B10/5735 ,  B22F7/06 ,  B22F2005/001 ,  C04B37/021 ,  C22C26/00 ,  C22C29/08

摘要： The present invention relates to a polycrystalline diamond compact cutter with a low cobalt content cemented tungsten carbide substrate having a coating covering at least a portion of the carbide substrate and the method of making the same. The carbide substrate has a content of three to ten percent by weight on average of cobalt or its alloy as a binder. The coating covers at least partially the exterior surfaces of the carbide substrate, and it may extend over partially or entirely the polycrystalline diamond table. The coating is either a single layer or multilayer. The coating comprises at least a metallic layer. The coating has a thickness of 0.1 μm-100 μm. The coating may have a metallurgical bonding with the polycrystalline diamond compact cutter. Methods for preparing such coating comprise physical vapor deposition, chemical vapor deposition, thermoreactive deposition and diffusion, electrical plating, electroless plating, or their combinations.