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公开(公告)号:US20180330858A1
公开(公告)日:2018-11-15
申请号:US15595089
申请日:2017-05-15
CPC分类号: H01F7/021 , B22F3/008 , B22F3/1055 , B22F2999/00 , B23K9/048 , B23K9/173 , B23K9/23 , B23K20/1215 , B23K20/122 , B23K20/233 , B23K2101/08 , B23K2101/38 , B23K2103/08 , B33Y10/00 , B33Y80/00 , B66B9/025 , C23C24/04 , H01F13/003 , H01F41/0253 , H02K7/06 , H02K15/03 , H02K49/102 , B22F2202/05
摘要: An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a helical magnet on a rod using an additive manufacturing process.
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2.
公开(公告)号:US20180258513A1
公开(公告)日:2018-09-13
申请号:US15693704
申请日:2017-09-01
CPC分类号: C22C38/10 , B22F3/02 , B22F3/24 , B22F9/04 , B22F2003/248 , B22F2009/043 , B22F2009/048 , B22F2202/05 , B22F2301/35 , C21D6/007 , C21D6/008 , C21D8/0205 , C21D8/0247 , C21D9/52 , C22C38/02 , H01F1/24 , H01F1/26 , H01F41/0246 , H02K1/02 , H02K15/00
摘要: Provided is a plurality of flaky magnetic metal particles of the embodiments, each flaky magnetic metal particle having a flat surface provided with either or both of a plurality of concavities and a plurality of convexities arranged in a first direction, each concavity or convexity having a width of 0.1 μm or more, a length of 1 μm or more, and an aspect ratio of 2 or higher; and at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), the flaky magnetic metal particles having an average thickness of between 10 nm and 100 μm inclusive and an average aspect ratio of between 5 and 10,000 inclusive.
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公开(公告)号:US10020100B2
公开(公告)日:2018-07-10
申请号:US15128137
申请日:2015-03-23
申请人: HITACHI METALS, LTD.
发明人: Rintaro Ishii
IPC分类号: B22F9/04 , H01F1/057 , C22C38/16 , C22C38/14 , C22C38/12 , C22C38/10 , C22C38/06 , C22C38/00 , C22C33/02 , B22F3/10 , B22F1/00 , H01F41/02
CPC分类号: H01F1/0577 , B22F1/0003 , B22F1/0007 , B22F1/0011 , B22F1/0081 , B22F3/1017 , B22F9/04 , B22F2009/044 , B22F2202/05 , B22F2301/355 , B22F2304/10 , B22F2998/10 , B22F2999/00 , C22C33/0278 , C22C38/00 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C2202/02 , H01F41/0266 , H01F41/0273 , B22F3/02 , B22F3/10
摘要: A method is provided for producing an R-T-B based alloy powder. The method includes providing an alloy powder containing 27.5 to 36.0 mass % of R, where R is at least one among the rare-earth elements and always includes at least one of Nd and Pr, 0.85 to 1.05 mass % of B, 0.1 to 2.5 mass % of element M (Al, Ti, V, Cr, Mn, Ni, Cu, Zn, Ga, Zr, Nb, Mo, Ag, In, Sn, Hf, Ta, W, Pb and/or Bi), and a balance T, where T is Fe or is Fe and Co; and pulverizing the powder by introducing the powder and a pulverization gas in a pulverization chamber. The pulverization includes attrition while circulating the alloy powder with a flow of the pulverization gas in the pulverization chamber. The pulverization gas has a gauge pressure of 0.75 MPa or more, and the residence time is 6 minutes or more.
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公开(公告)号:US20180158604A1
公开(公告)日:2018-06-07
申请号:US15367744
申请日:2016-12-02
CPC分类号: H01F41/0253 , B22F3/008 , B22F7/06 , B22F7/08 , B22F2998/10 , B22F2999/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B33Y80/00 , H01F7/0273 , H01F7/206 , B22F2202/05 , B22F3/105 , B22F2003/1054
摘要: Additive manufacturing systems are disclosed. The systems may include a build platform, and at least one magnet positioned adjacent the build platform. The magnet(s) may be configured to manipulate a magnetic powder material positioned on the build platform to form a pre-sintered component having a first geometry. The system may also include at least one sprayer nozzle positioned adjacent the build platform, where the at least one sprayer nozzle may be configured to coat the pre-sintered component formed from the magnetic powder material with a binder material. Additionally, the system may include at least one radiant energy component positioned adjacent the build platform. The radiant energy component(s) may be configured to sinter the pre-sintered component to form a sintered component having a second geometry identical to the first geometry of the pre-sintered component.
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公开(公告)号:US20180158603A1
公开(公告)日:2018-06-07
申请号:US15367713
申请日:2016-12-02
CPC分类号: H01F41/0253 , B22F3/008 , B22F2999/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , H01F41/02 , B22F2202/05
摘要: Additive manufacturing systems are disclosed. The systems may include a build platform, and at least one magnet positioned adjacent the build platform. The magnet(s) may be configured to manipulate a magnetic powder material positioned on the build platform to form a pre-sintered component having a first geometry. The system may also include at least one sprayer nozzle positioned adjacent the build platform, where the at least one sprayer nozzle may be configured to coat the pre-sintered component formed from the magnetic powder material with a binder material. Additionally, the system may include a heated build chamber surrounding the build platform. The heated build chamber may be configured to heat the pre-sintered component to form a sintered component having a second geometry.
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公开(公告)号:US09930729B2
公开(公告)日:2018-03-27
申请号:US14697418
申请日:2015-04-27
申请人: The Boeing Company
发明人: Marc R. Matsen , Mark A. Negley
IPC分类号: H05B6/10 , B22F3/16 , B22F3/03 , B22F3/087 , B22F3/105 , B22F3/14 , H05B6/06 , B21D21/00 , C21D1/18 , C21D1/42 , C21D6/00 , C21D9/42 , H05B6/08
CPC分类号: H05B6/101 , B21D21/00 , B22F3/03 , B22F3/087 , B22F3/105 , B22F3/14 , B22F3/16 , B22F2003/1053 , B22F2202/05 , B22F2202/07 , B22F2203/00 , C21D1/18 , C21D1/42 , C21D6/00 , C21D9/42 , H05B6/06 , H05B6/08 , H05B6/105 , H05B2206/023 , Y02P10/253
摘要: Described herein is a method of forming a heat-treated material includes positioning the heat-treated material between first and second susceptors. Each of the first and second susceptors includes a tool face shaped according to a desired shape of the heat-treated material. The method also includes applying a low-strength magnetic field to the first and second susceptors to heat the first and second susceptors. Further, the method includes compressing the heat-treated material between the first and second susceptors to form the heat-treated material into the desired shape. The method additionally includes applying a high-strength magnetic field to the heat-treated material before compressing the heat-treated material between the first and second susceptors.
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7.
公开(公告)号:US09925591B2
公开(公告)日:2018-03-27
申请号:US14831911
申请日:2015-08-21
IPC分类号: B22D11/14 , B22F9/08 , C21B13/10 , C21C5/52 , B22F9/06 , F27D11/06 , F27D11/08 , F27D11/00 , F27D27/00 , F27D9/00 , F27D3/14 , F27D3/00 , F27D1/00 , B22D45/00 , B22D11/06 , F27B14/02 , F27B14/04 , F27B14/08 , F27B14/14
CPC分类号: B22F9/06 , B22D11/0605 , B22D11/144 , B22D45/00 , B22F9/082 , B22F2009/0836 , B22F2009/084 , B22F2999/00 , F27B14/02 , F27B14/04 , F27B14/08 , F27B14/14 , F27D1/0006 , F27D3/0024 , F27D3/14 , F27D9/00 , F27D11/00 , F27D11/06 , F27D11/08 , F27D27/00 , F27D2009/001 , B22F2202/01 , B22F2202/05 , B22F2202/06 , B22F2202/13
摘要: A metallurgical system for producing metals and metal alloys includes a fluid cooled mixing cold hearth having a melting cavity configured to hold a raw material for melting into a molten metal, and a mechanical drive configured to mount and move the mixing cold hearth for mixing the raw material. The system also includes a heat source configured to heat the raw material in the melting cavity, and a heat removal system configured to provide adjustable insulation for the molten metal. The mixing cold hearth can be configured as a removal element of an assembly of interchangeable mixing cold hearths, with each mixing cold hearth of the assembly configured for melting a specific category of raw materials. A process includes the steps of providing the mixing cold hearth, feeding the raw material into the melting cavity, heating the raw material, and moving the mixing cold hearth during the heating step.
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公开(公告)号:US20180025820A1
公开(公告)日:2018-01-25
申请号:US15656284
申请日:2017-07-21
申请人: TDK Corporation
发明人: Ayato KAKOKI , Makoto IWASAKI , Tetsuya HIDAKA , Takuma HAYAKAWA
CPC分类号: H01F1/0577 , B22F3/16 , B22F9/04 , B22F2009/044 , B22F2201/11 , B22F2202/05 , B22F2301/45 , B22F2998/10 , B22F2999/00 , C22C28/00 , C22C30/02 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/14 , C22C38/16 , C22C2202/02 , H01F41/0293 , B22F9/023 , B22F1/0059 , B22F3/087 , B22F3/14 , B22F2003/248
摘要: An R-T-B based sintered magnet containing a first heavy rare earth element, in which R includes Nd, T includes Co and Fe, the first heavy rare earth element includes Tb or Dy, the R-T-B based sintered magnet has a region in which a concentration of the first heavy rare earth element decreases from the surface toward the inside, a first grain boundary phase which contains the first heavy rare earth element and Nd but does not contain Co is present in one cross section including the region, and an area occupied by the first grain boundary phase in one cross section including the region is 1.8% or less.
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公开(公告)号:US20180025819A1
公开(公告)日:2018-01-25
申请号:US15550818
申请日:2016-02-16
申请人: HITACHI METALS, LTD.
IPC分类号: H01F1/057 , B22F1/00 , C22C28/00 , H01F41/02 , C22C38/06 , C22C38/02 , C22C38/04 , B22F3/24 , C22C38/00
CPC分类号: H01F1/0577 , B22F1/0011 , B22F3/24 , B22F2998/10 , B22F2999/00 , C22C28/00 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C2202/02 , H01F41/0266 , H01F41/0293 , B22F3/02 , B22F2202/05 , B22F9/04 , B22F3/10 , B22F2003/248 , B22F2201/10 , B22F2201/20
摘要: A step of providing an R1-T1-X (where R1 is mainly Nd; T1 is mainly Fe; and X is mainly B) based sintered alloy compact mainly characterized by a molar ratio of [T1]/[X] being 13.0 or more; a step or providing an R2-Ga—Cu (where R2 is mainly Pr and/or Nd and accounts for not less than 65 mol % and not more than 95 mol %; and [Cu]/([Ga]+[Cu]) is not less than 0.1 and not more than 0.9 by mole ratio) based alloy; and a step of, while allowing at least a portion of a surface of the R1-T1-X based sintered alloy compact to be in contact with at least a portion of the R2-Ga—Cu based alloy, performing a heat treatment at a temperature which is not less than 450° C. and not more than 600° C.
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10.
公开(公告)号:US09868154B2
公开(公告)日:2018-01-16
申请号:US14460573
申请日:2014-08-15
CPC分类号: B22F5/007 , B22F2003/1053 , B22F2005/103 , B22F2202/05 , B22F2999/00 , B22F3/003
摘要: A method for creating a dynamic mold from a ferrofluid substrate in or adjacent to curable molding material is disclosed. A combination of magnetic elements is used to create a magnetic field that is capable of concentrating a ferrofluid substrate in a 3-D space. The ferrofluid substrate shapes a molding material to effect its shape. The ferrofluid, under the influence of a magnetic field, is capable of creating surface features and internal features in the molding material. Once cured or partially cured, the ferrofluid may be removed, resulting in features that are difficult to form by conventional methods.
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