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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
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.
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公开(公告)号：US12104229B1
公开(公告)日：2024-10-01
申请号：US18572807
申请日：2023-05-12
发明人： Tomoyuki Ishida , Yuki Tanaka , Kazuhiro Hirose , Yasuki Kido
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.
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公开(公告)号：US20240318285A1
公开(公告)日：2024-09-26
申请号：US18580620
申请日：2022-03-29
发明人： Tomoyuki ISHIDA , Yuki TANAKA , Kazuhiro HIROSE
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.
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公开(公告)号：US20240287657A1
公开(公告)日：2024-08-29
申请号：US18443995
申请日：2024-02-16
发明人： Ramasis Goswami , Alex E. Moser
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.
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公开(公告)号：US11890769B2
公开(公告)日：2024-02-06
申请号：US17415114
申请日：2019-11-27
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.
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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
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.
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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.
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公开(公告)号：US11798751B2
公开(公告)日：2023-10-24
申请号：US17363126
申请日：2021-06-30
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.
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公开(公告)号：US11717978B2
公开(公告)日：2023-08-08
申请号：US17414023
申请日：2020-08-11
发明人： Kensei Hamaki , Takato Yamanishi , Keiichi Tsuda
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.
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公开(公告)号：US20230040103A1
公开(公告)日：2023-02-09
申请号：US17787429
申请日：2020-12-17
申请人： AB SANDVIK COROMANT
摘要： A cutting tool includes a substrate of cemented carbide having hard constituents in a metallic binder. The hard constituents include WC. The WC content in the cemented carbide is 80-95 wt %. The cemented carbide has a Fe+Ni+Co+Cr content of 3-13 wt %, an atomic ratio of 0.05
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