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公开(公告)号:US20190217389A1
公开(公告)日:2019-07-18
申请号:US15874134
申请日:2018-01-18
申请人: The Boeing Company
IPC分类号: B22F9/04
CPC分类号: B22F9/04 , B22F1/0003 , B22F1/0048 , B22F2003/1059 , B22F2009/001 , B22F2009/041 , B22F2301/205 , B22F2998/10 , B22F2999/00 , B33Y70/00 , C22C1/0458 , B22F1/0081 , B22F2202/13
摘要: A method for manufacturing a spherical metallic powder blend using a metallic starting material, the method including steps of grinding the metallic starting material to yield an intermediate powder, spheroidizing the intermediate powder to yield a first spherical powder component, and mixing the first spherical powder component with a second spherical powder component, wherein the first spherical powder component and the second spherical powder component have substantially the same chemical composition.
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公开(公告)号:US20190169719A1
公开(公告)日:2019-06-06
申请号:US16273522
申请日:2019-02-12
申请人: Technium, LLC
IPC分类号: C22C32/00 , B22F3/10 , B22F1/00 , B22F5/00 , G21F1/08 , C22C21/00 , B22F3/12 , B22F3/20 , B22F7/00 , C22C1/05 , C22C1/04 , B22F9/04
CPC分类号: C22C32/0057 , B22F1/0003 , B22F3/10 , B22F3/12 , B22F3/20 , B22F5/00 , B22F7/008 , B22F9/04 , B22F2003/208 , B22F2009/041 , B22F2301/052 , B22F2302/10 , B22F2998/10 , C22C1/0416 , C22C1/051 , C22C21/00 , C22C32/00 , C22C32/0036 , G21F1/08 , B22F9/082
摘要: The invention is a process for manufacturing a nano aluminum/alumina metal matrix composite and composition produced therefrom. The process is characterized by providing an aluminum powder having a natural oxide formation layer and an aluminum oxide content between about 0.1 and about 4.5 wt. % and a specific surface area of from about 0.3 and about 5 m2/g, hot working the aluminum powder, and forming a superfine grained matrix aluminum alloy. Simultaneously there is formed in situ a substantially uniform distribution of nano particles of alumina. The alloy has a substantially linear property/temperature profile, such that physical properties such as strength are substantially maintained even at temperatures of 250° C. and above.
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公开(公告)号:US20180354029A1
公开(公告)日:2018-12-13
申请号:US16106528
申请日:2018-08-21
申请人: NTN CORPORATION
CPC分类号: B22F1/0003 , B22F1/0055 , B22F3/02 , B22F3/10 , B22F7/06 , B32B15/015 , B32B2255/06 , F16C33/104 , F16C33/128
摘要: Provided is a sintered bearing that is capable of reducing cost through reduction in usage amount of copper, excellent in initial running-in characteristics and quietness, and is high in durability. Raw material powders including iron powder, flat copper powder, low-melting point metal powder, and graphite are loaded into a mold, and a green compact is formed under a state in which the flat copper powder is caused to adhere onto a molding surface. Subsequently, sintering is carried out without causing iron in the green compact to react with carbon so that an iron structure is formed of a ferrite phase. In this manner, a sintered bearing (1) including a base part (S2) including copper at a uniform content, and a surface layer (S1) covering a surface of the base part (S2) and including copper at a larger content than the base part (S2) can be obtained.
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公开(公告)号:US20180326497A1
公开(公告)日:2018-11-15
申请号:US15768065
申请日:2016-10-26
CPC分类号: B22F9/082 , B22F1/0003 , B22F1/0011 , B22F2009/0828 , B22F2301/255 , B22F2304/10 , C08K2003/0806 , C08K2201/001 , C08K2201/005 , C08K2201/006 , C09D5/24 , C09D7/69 , C22C5/06 , H01B1/02 , H01B1/22
摘要: There is provided a silver powder which has a small average particle diameter and a small thermal shrinkage percentage, and a method for producing the same. While a molten metal of silver heated to a temperature (1292 to 1692° C.), which is higher than the melting point (962° C.) of silver by 330 to 730° C., is allowed to drop, a high-pressure water is sprayed onto the molten metal of silver (preferably at a water pressure of 90 to 160 MPa) to rapidly cool and solidify the molten metal of silver to powderize silver to produce a silver powder which has an average particle diameter of 1 to 6 μm and a shrinkage percentage of not greater than 8% (preferably not greater than 7%) at 500° C., the product of the average particle diameter by the shrinkage percentage at 500° C. being 1 to 11 μm·% (preferably 1.5 to 10.5 μm·%).
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公开(公告)号:US10083793B2
公开(公告)日:2018-09-25
申请号:US14868081
申请日:2015-09-28
发明人: Toru Nakanishi , Naoaki Ogata
IPC分类号: B22F9/24 , H01G4/008 , H01G4/30 , H01B1/22 , H01B1/02 , B22F1/02 , B22F1/00 , C09D5/24 , H01G4/012 , H01G4/12
CPC分类号: H01G4/008 , B22F1/0003 , B22F1/0018 , B22F1/02 , B22F9/24 , C09D5/24 , H01B1/02 , H01B1/22 , H01G4/0085 , H01G4/012 , H01G4/12 , H01G4/30
摘要: A method for producing a metal powder that includes a first step of uniformly arranging a metal compound on a metal particle, and a second step of converting the metal compound uniformly arranged on the metal particle into a complex metal compound. In the first step, a solution that contains at least one metal element and at least one group 4 element different from the metal element is prepared, the solution being adjusted to have a pH of 5 or less. The prepared solution is mixed with a reductant solution to coprecipitate the metal and the metal compound, thereby producing a slurry that contains a metal powder containing the metal combined with the metal compound. In the second step, a solution or a powder containing at least one second metal element is added to the slurry to convert the metal compound into the complex metal compound.
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公开(公告)号:US20180258512A1
公开(公告)日:2018-09-13
申请号:US15761078
申请日:2016-09-19
CPC分类号: C22C14/00 , B22F1/0011 , B22F3/1055 , B22F2201/10 , B22F2201/20 , B22F2301/205 , B22F2999/00 , B33Y10/00 , B33Y70/00 , C22C1/045 , C22C1/0458 , Y02P10/295 , B22F1/0003
摘要: A titanium-tantalum alloy having a titanium wt % ranging from 10% to 70% and wherein the titanium has a body centered cubic structure. A method of forming a titanium-tantalum alloy, the method comprising the steps of: (a) slicing a 3D CAD model of a part to be formed into a plurality of 2D image layers; (b) preparing a homogenous powder mixture of titanium powder and tantalum powder; (c) dispensing a layer of the powder mixture onto a processing bed; (d) performing powder bed fusion of the layer of the powder mixture according to one of the 2D image layers in one of: a vacuum environment and an inert gas environment; and performing steps (c) and (d) for each of the plurality of 2D image layers in succession.
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公开(公告)号:US09999923B2
公开(公告)日:2018-06-19
申请号:US15455842
申请日:2017-03-10
CPC分类号: B22F1/02 , B22F1/0003 , B22F1/0018 , B22F1/0062 , B22F9/24 , B22F2001/0037 , B22F2009/245 , B22F2301/255 , B22F2302/45 , B22F2304/05 , C08K9/04 , C08K2003/0806 , H01B1/02 , H01B1/22 , H05K1/097
摘要: A silver powder includes a large number of particles. The particles include polyhedral particles 2. The ratio P1 of the number of the polyhedral particles 2 to the total number of the particles is equal to or greater than 80%. Each polyhedral particle 2 has a body containing silver as a main component, and a coating layer covering a surface of the body and containing organic matter as a main component. Each polyhedral particle 2 has an aspect ratio of equal to or less than 3.0. The content P2 of the organic matter in the silver powder is preferably equal to or less than 0.5% by weight. The silver powder preferably has a median diameter D50 of equal to or less than 0.5 μm. The silver powder preferably has a tap density TD of equal to or greater than 5.0 g/cm3.
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公开(公告)号:US09989092B2
公开(公告)日:2018-06-05
申请号:US14899896
申请日:2014-06-25
申请人: NTN CORPORATION
IPC分类号: F16C33/14 , B22F3/16 , H02K7/08 , C22C9/00 , F16C32/06 , F16C33/10 , B22F1/00 , B22F5/00 , C22C1/04 , F16C33/12 , C22C9/02 , F16C17/08 , F16C17/10
CPC分类号: F16C33/145 , B22F1/0003 , B22F1/0014 , B22F3/16 , B22F5/00 , B22F2301/10 , B22F2301/30 , B22F2301/35 , C22C1/0425 , C22C9/00 , C22C9/02 , F16C17/08 , F16C17/102 , F16C32/0633 , F16C33/104 , F16C33/128 , F16C2204/10 , F16C2370/12 , H02K7/08
摘要: A sintered bearing includes a sintered metal formed by using a metal powder mixture containing copper powder and iron powder. The metal powder mixture contains 80 wt % or more of particles having an average particle diameter of less than 45 μm. The copper powder contains electrolytic copper powder. The electrolytic copper powder contains 40 number % or more of particles having a circularity of 0.64 or more.
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公开(公告)号:US09962765B2
公开(公告)日:2018-05-08
申请号:US13661191
申请日:2012-10-26
发明人: Kuen-Shyang Hwang , Chi Kin Cheong
IPC分类号: B22F1/00 , B22F3/12 , B32B15/02 , B22F3/10 , B22F3/16 , C22C38/18 , C22C38/22 , C22C38/24 , C22C38/30 , C22C38/42 , C22C38/44 , C22C38/48 , C22C33/02 , C22C27/06 , C22C35/00 , C22C38/02 , C22C38/04
CPC分类号: B22F1/00 , B22F1/0096 , B22F3/10 , B22F3/16 , B22F2998/10 , B22F2999/00 , C22C27/06 , C22C33/0257 , C22C35/00 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/22 , C22C38/24 , C22C38/30 , C22C38/42 , C22C38/44 , C22C38/48 , B22F1/0003 , B22F1/0074 , B22F9/026 , B22F3/02 , B22F3/1021
摘要: A method of producing a workpiece includes: providing a first powder, with a hardness of the first powder being less than 250 HV, and with a mean particle size of the first powder being less than 20 μm; mixing the first powder and a second powder to form a mixed powder, with the mixed powder including carbon, chromium, iron, and elements selected from the group consisting of molybdenum, nickel, copper, niobium, vanadium, tungsten, silicon, cobalt, and manganese; adding a binder and water to the mixed powder; applying a spray drying process to granulate the mixed powder to form a spray-dried powder; applying a dry pressing process to the spray-dried powder to form a green part; applying a debinding process to the green part to form a debound body; and sintering the debound body into a workpiece having a hardness of higher than 250 HV.
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公开(公告)号:US09950369B2
公开(公告)日:2018-04-24
申请号:US15421787
申请日:2017-02-01
发明人: Nobuyuki Shinohara , Kimihiko Ando , Yoshihisa Ueda , Yusaku Yoshida , Masaru Sugimoto , Toshiyuki Sawada , Shingo Fukumoto
IPC分类号: B22F7/00 , B22F3/16 , C22C38/38 , C22C27/04 , C22C38/04 , C22C38/02 , C22C38/22 , B32B15/18 , B32B15/01 , C22C27/06 , C22C1/05 , C22C1/04 , C22C29/02 , C22C38/00 , C22C1/10 , C22C45/10 , C22C45/02 , C22C30/00 , C22C38/12 , C22C38/44
CPC分类号: B22F7/008 , B22F3/16 , B22F5/106 , B22F2301/35 , B22F2302/40 , B22F2304/10 , B22F2998/10 , B22F2999/00 , B32B15/01 , B32B15/18 , C22C1/04 , C22C1/05 , C22C1/051 , C22C1/053 , C22C1/055 , C22C1/10 , C22C27/04 , C22C27/06 , C22C29/02 , C22C30/00 , C22C33/0285 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/22 , C22C38/38 , C22C38/44 , C22C45/02 , C22C45/10 , Y10T428/12028 , Y10T428/12042 , Y10T428/12056 , Y10T428/1209 , Y10T428/12125 , Y10T428/12132 , Y10T428/12139 , Y10T428/12146 , Y10T428/12153 , Y10T428/12229 , Y10T428/12479 , Y10T428/12951 , Y10T428/12958 , Y10T428/12972 , Y10T428/12979 , C22C1/058 , C22C1/045 , B22F1/0003 , B22F3/02 , B22F3/1039
摘要: Mixed powder that contains first hard particles, second hard particles, graphite particles, and iron particles is used to manufacture a sintered alloy. The first hard particle is a Fe—Mo—Cr—Mn based alloy particle, the second hard particle is a Fe—Mo—Si based alloy particle. The mixed powder contains 5 to 50 mass % of the first hard particles, 1 to 8 mass % of the second hard particles, and 0.5 to 1.0 mass % of the graphite particles when total mass of the first hard particles, the second hard particles, the graphite particles, and the iron particles is set as 100 mass %.
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