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公开(公告)号：US20230260687A1
公开(公告)日：2023-08-17
申请号：US17670836
申请日：2022-02-14
Applicant: General Electric Company
Inventor： Wanming Zhang , Ananda Barua , Shenyan Huang , Changjie Sun , Vandana Prabhakar Rallabandi , Anthony Joseph Vinciquerra , Min Zou
CPC classification number: H01F1/24 , C22C19/00 , H01F1/1475 , C22C2202/02
Abstract: Methods for manufacturing dual phase soft magnetic components include combining a plurality of soft ferromagnetic particles with a plurality of paramagnetic particles to form a component structure, wherein the plurality of soft ferromagnetic particles each comprise an electrically insulative coating, and, heat treating the component structure to consolidate the plurality of soft ferromagnetic particles with the plurality of paramagnetic particles.
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2.发明公开公开(公告)号：US20230260686A1
公开(公告)日：2023-08-17
申请号：US17670824
申请日：2022-02-14
Applicant: General Electric Company
Inventor： Shenyan Huang , Min Zou , Wanming Zhang
CPC classification number: H01F1/20 , H01F1/0018 , H01F41/02
Abstract: A bulk dual phase soft magnetic component having a three-dimensional magnetic flux and its manufacturing methods are described herein. The methods can include combining a first powder material with a second powder material to form a component structure, wherein the first powder material comprises a plurality of first particles each comprising a first core and a reactive coating, and wherein the second powder material comprises a plurality of second particles each comprising a second core and a non-reactive coating, and, consolidating the component structure to join the plurality of first particles with the plurality of second particles.
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公开(公告)号：US10748687B2
公开(公告)日：2020-08-18
申请号：US15918359
申请日：2018-03-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Wanming Zhang , Min Zou , Francis Johnson
IPC: H01F1/14 , H01F1/147 , H01F41/02 , H02K1/02 , H02K1/06 , H02K15/02 , H02K1/24 , H01F1/18 , H01F3/02 , H01F3/10
Abstract: A method of forming a component having a variation in saturation magnetization is presented. The method includes selectively diffusing nitrogen into a metallic component of a masked metallic component by exposing the masked metallic component to a nitrogen-rich atmosphere. The masked metallic component includes a patterned oxide layer formed on a surface of the metallic component, and the patterned oxide layer includes an oxide of a metal present in the metallic component. A related component is also presented.
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公开(公告)号：US11661646B2
公开(公告)日：2023-05-30
申请号：US17236184
申请日：2021-04-21
Applicant: General Electric Company
Inventor： Shenyan Huang , Steve John Buresh , Min Zou , Wanming Zhang , Pazhayannur Ramanathan Subramanian , Deborah D. Whitis
Abstract: A dual phase magnetic component, along with methods of its formation, is provided. The dual phase magnetic component may include an intermixed first region and second region formed from a single material, with the first region having a magnetic area and a diffused metal therein, and with the second region having a non-magnetic area. The second region generally has greater than 0.1 weight % of nitrogen.
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公开(公告)号：US20210035716A1
公开(公告)日：2021-02-04
申请号：US16526192
申请日：2019-07-30
Applicant: General Electric Company
Inventor： Raghavendra Rao Adharapurapu , Sudeep Pradhan Sadananda Rao , Reshma Saira Mathew , Min Zou
Abstract: A method of heat-treating an additively-manufactured ferromagnetic component is presented. The additively-manufactured ferromagnetic component includes a metal alloy having iron and cobalt. The method of heat-treating is performed such that a saturation flux density of a heat-treated ferromagnetic component is greater than a saturation flux density of an as-formed ferromagnetic component. The heat-treated ferromagnetic component has a microstructure having an average grain size of substantially all grains in a range of about 0.1 micron to about 25 microns. A ferromagnetic component is also presented.
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Patent Agency Ranking
公开(公告)号：US20150231696A1
公开(公告)日：2015-08-20
申请号：US14182874
申请日：2014-02-18
Applicant: General Electric Company
Inventor： Qi Zhao , Francis Johnson , Stephen Francis Rutkowski , Min Zou , Wanming Zhang
CPC classification number: B22D27/045 , B22C7/02 , B22C9/04 , B22D21/06
Abstract: A method of directionally solidifying a molten alloy is presented. The molten alloy is disposed in a shell mold that has a thermal conductivity value greater than about 2 W/m-K. During the direction solidification, heat is transferred from the shell mold to a cooling region with a heat extraction rate greater than about 120 W/m2.
Abstract translation: 提出了一种定向凝固熔融合金的方法。 将熔融合金设置在热导率大于约2W / m-K的壳模中。 在固化方向期间，热量从壳模转移到冷却区，散热速率大于约120W / m2。
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7.发明授权公开(公告)号：US10673288B2
公开(公告)日：2020-06-02
申请号：US15895743
申请日：2018-02-13
Applicant: General Electric Company
Inventor： Lawrence Bernard Kool , Min Zou , Wanming Zhang , Susan Corah , Christopher Klapper , Francis Johnson , Steve Buresh
IPC: H02K1/02 , H02K1/04 , H02K15/02 , H02K15/12 , H01F1/34 , H01F3/02 , H01F41/02 , C22C38/00 , C22C38/54 , C22C38/06 , B32B15/01 , C22C38/30 , C22C38/58 , C22C38/38 , H01F3/10
Abstract: A method includes forming one or more oxide barrier layers on one or more protected portions of a magnetic, metallic body, and converting one or more unprotected portions of the magnetic, metallic body to a less magnetic material by exposing the magnetic metallic body having the one or more oxide barrier layers formed thereon to nitrogen. One or more protected portions of the magnetic, metallic body that are beneath the one or more oxide barrier layers are not converted to the less magnetic material. The method can be used to form one or more layers of a laminated electric motor.
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公开(公告)号：US20190279795A1
公开(公告)日：2019-09-12
申请号：US15918359
申请日：2018-03-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Wanming Zhang , Min Zou , Francis Johnson
Abstract: A method of forming a component having a variation in saturation magnetization is presented. The method includes selectively diffusing nitrogen into a metallic component of a masked metallic component by exposing the masked metallic component to a nitrogen-rich atmosphere. The masked metallic component includes a patterned oxide layer formed on a surface of the metallic component, and the patterned oxide layer includes an oxide of a metal present in the metallic component. A related component is also presented.
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公开(公告)号：US20180337565A1
公开(公告)日：2018-11-22
申请号：US15598408
申请日：2017-05-18
Applicant: General Electric Company
Inventor： Patel Bhageerath Reddy , Min Zou , Ayman Mohamed Fawzi EL-Refaie , Francis Johnson
Abstract: An AC electric machine that includes a dual magnetic phase material ring is disclosed. The AC electric machine includes a stator assembly and a rotor assembly positioned within the stator assembly and configured to rotate relative thereto, the rotor assembly comprising a rotor core including a stack of rotor laminations that collectively form the rotor core, the rotor core including a plurality of rotor poles separated by gaps therebetween. The AC electric machine also includes a dual magnetic phase material ring positioned about the stack of rotor laminations, the dual magnetic phase material ring comprising a first ring portion comprising a magnetic portion and a second ring portion comprising a non-magnetic portion.
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公开(公告)号：US09803139B1
公开(公告)日：2017-10-31
申请号：US15191662
申请日：2016-06-24
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Peter John Bonitatibus, Jr. , Francis Johnson , Min Zou
CPC classification number: C09K13/02 , C23C8/04 , C23C8/26 , C23F1/00 , C23F1/44 , C23G1/32 , H01F1/147
Abstract: A method for selectively removing an aluminum-silicon coating fired on a surface of a metallic structure is described. The method includes the step of contacting the coating with molten potassium hydroxide (KOH), under conditions sufficient to remove the coating without substantially affecting the metallic surface. Methods for preparing a magnetic component are also described. They involve masking pre-selected regions of the surface of the component, using an aluminum-silicon coating that is fired onto the surface, prior to a nitriding step. The coating is then removed according to the procedure outlined herein.
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