公开(公告)号：US12046391B2

公开(公告)日：2024-07-23

申请号：US17776739

申请日：2021-10-20

Applicant: BEIJING DREAM INK TECHNOLOGIES CO., LTD.

Inventor： Zhenlong Men ,  Zhongwei Ren ,  Jiameng Kang

IPC: H01B1/22 ,  B22F1/103

CPC classification number: H01B1/22 ,  B22F1/103 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/20

Abstract: A method for prepares low melting point metal particles, a conductive paste and a method for preparing the conductive paste, and relates to the technical field of functional materials. The method for preparing low melting point metal particles includes providing an organic resin carrier having fluidity, adding a low melting point metal material and the organic resin carrier into a sealed container for a vacuuming operation or filling a protective gas, making a temperature in the sealed container higher than the melting point of the low melting point metal and performing dispersion by stirring, and lowering the temperature, after performing the dispersion, to be below the melting point of the low melting point metal with continuous stirring during a cooling process to obtain low melting point metal particles dispersed in the organic resin carrier. Low melting point metal particles can be effectively prepared.

公开(公告)号：US20240112838A1

公开(公告)日：2024-04-04

申请号：US18477949

申请日：2023-09-29

Applicant: NICHIA CORPORATION

Inventor： Masahiro ABE ,  Shuichi TADA ,  Satoshi YAMANAKA ,  Kenta IWAI

IPC: H01F1/059 ,  B22F1/142 ,  B22F1/145 ,  B22F1/16 ,  H01F1/055

CPC classification number: H01F1/059 ,  B22F1/142 ,  B22F1/145 ,  B22F1/16 ,  H01F1/0551 ,  B22F2201/02 ,  B22F2201/03 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2301/355 ,  B22F2302/45 ,  B22F2998/10

Abstract: A method of producing a phosphate-coated SmFeN-based anisotropic magnetic powder, the method including stirring a slurry containing a raw material SmFeN-based anisotropic magnetic powder, water, a phosphate source, and an aluminum source to obtain a SmFeN-based anisotropic magnetic powder having a surface coated with a phosphate.

公开(公告)号：US11919072B2

公开(公告)日：2024-03-05

申请号：US17669865

申请日：2022-02-11

Applicant: ZHENG ZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., Ltd.

Inventor： Zhihui Lu ,  Hongtao Yang ,  Xudong Si ,  Zhiyang Sun ,  Leile Zhang ,  Guangfei You ,  Yiyong Wu ,  Chao Chen

IPC: B22F1/065 ,  B22F9/04 ,  B22F1/145 ,  B22F3/15

CPC classification number: B22F1/065 ,  B22F1/145 ,  B22F3/15 ,  B22F9/04 ,  B22F2009/043 ,  B22F2201/11

Abstract: The present invention discloses a preparation process of multi-component spherical alloy powder, which adopts a plasma rotation electrode process (PREP) method to prepare the multi-component spherical alloy powder. The multi-component alloy includes at least one of refractory metals and compounds thereof, specifically including tungsten, molybdenum, tantalum, niobium, rhenium, tungsten carbide, tantalum carbide and the like.
The present invention adopts the PREP method to prepare the multi-component spherical alloy powder containing the refractory metals or compound thereof, and the prepared multi-component spherical alloy powder has high sphericity, good fluidity and high tap density, and is low in content of impurity elements and output of hollow powder and satellite powder; compared with other preparation methods, the prepared alloy powder has better performance and is an ideal material for metal 3D printing; and the present invention further solves the problem of difficulty in preparing a round rod with the refractory metals or compound thereof as a base material used in the PREP method, and provides a spatial structure meshing method, a direct element mixing method or a porous framework method to prepare a multi-component alloy rod.

公开(公告)号：US11901101B2

公开(公告)日：2024-02-13

申请号：US17745912

申请日：2022-05-17

Applicant: Seiko Epson Corporation

Inventor： Atsushi Nakamura

IPC: H01F1/147 ,  H01F1/24 ,  B22F1/16 ,  C22C38/02 ,  G11B5/66 ,  C22C1/08 ,  C22C1/10 ,  C22C33/02 ,  H01F1/20 ,  H01F1/28 ,  H01F17/06 ,  H01F27/28 ,  B22F3/02 ,  H01F27/24 ,  H01F1/33 ,  B22F1/142 ,  B22F1/00 ,  B22F9/08 ,  B22F1/05 ,  B22F3/10 ,  B22F1/052 ,  H01F3/08 ,  H01F1/18 ,  H01F27/255 ,  H01F17/04 ,  B22F9/04

CPC classification number: H01F1/147 ,  B22F1/00 ,  B22F1/05 ,  B22F1/052 ,  B22F1/142 ,  B22F1/16 ,  B22F3/02 ,  B22F3/10 ,  B22F9/08 ,  B22F9/082 ,  C22C1/08 ,  C22C1/1084 ,  C22C33/0257 ,  C22C38/02 ,  G11B5/66 ,  H01F1/1475 ,  H01F1/14766 ,  H01F1/18 ,  H01F1/20 ,  H01F1/24 ,  H01F1/28 ,  H01F1/33 ,  H01F3/08 ,  H01F17/062 ,  H01F27/24 ,  H01F27/2823 ,  B22F2009/043 ,  B22F2009/0828 ,  B22F2201/013 ,  B22F2201/016 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2301/35 ,  B22F2302/25 ,  B22F2303/01 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  H01F27/255 ,  H01F2017/048 ,  Y10T428/12014 ,  Y10T428/12035 ,  Y10T428/1259 ,  Y10T428/12181 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12951 ,  Y10T428/2991 ,  Y10T428/32

Abstract: An insulating material-coated soft magnetic powder includes: a core particle that includes a base portion containing a soft magnetic material containing Fe as a main component and at least one of Si, Cr, and Al, and that includes an oxide film provided on a surface of the base portion and containing an oxide of at least one of Si, Cr, and Al; and an insulating film that is provided on a surface of the core particle and that contains a ceramic, in which a thickness of the insulating film is 5 nm or more and 300 nm or less, and the oxide contained in the oxide film and the ceramic contained in the insulating film are mutually diffused at an interface between the oxide film and the insulating film.

公开(公告)号：US11817245B2

公开(公告)日：2023-11-14

申请号：US15882476

申请日：2018-01-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Toru Takahashi ,  Kazuhiro Henmi ,  Noriharu Yodoshi ,  Akihiro Makino

IPC: B22F1/00 ,  B22F9/08 ,  B22F5/00 ,  H01F1/147 ,  H01F27/255 ,  H01F27/28 ,  H01F1/153 ,  H01F17/04 ,  C22C45/02 ,  B22F1/05 ,  B22F1/08 ,  C22C38/00 ,  C22C38/02 ,  C22C38/08 ,  C22C38/10 ,  C22C38/16 ,  H02K1/02

CPC classification number: H01F17/04 ,  B22F1/05 ,  B22F1/08 ,  B22F5/00 ,  B22F9/082 ,  C22C38/002 ,  C22C38/02 ,  C22C38/08 ,  C22C38/10 ,  C22C38/16 ,  C22C45/02 ,  H01F1/14741 ,  H01F1/15308 ,  H01F1/15375 ,  H01F27/255 ,  H01F27/28 ,  B22F2005/004 ,  B22F2009/0824 ,  B22F2301/35 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2200/02 ,  C22C2202/02 ,  H02K1/02 ,  B22F2999/00 ,  B22F2009/0824 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2998/10 ,  B22F9/082 ,  B22F1/10 ,  B22F3/02 ,  B22F5/106 ,  B22F2998/10 ,  B22F1/10 ,  B22F1/08 ,  B22F5/106 ,  B22F3/02 ,  B22F9/082

Abstract: A soft magnetic powder according to the present disclosure comprises a particle having no hollow part as a main component, wherein a number of hollow particle present in a region of 2.5 mm square is 40 or less in a cross section of a molded body obtained by powder-compacting and molding the soft magnetic powder so as to have a volume filling rate of 75% or more and 77% or less (i.e., from 75% to 77%).

公开(公告)号：US20230321728A1

公开(公告)日：2023-10-12

申请号：US18013301

申请日：2021-03-08

Applicant: HITACHI, LTD.

Inventor： Hirotsugu KAWANAKA ,  Noboru SAITO ,  Shinji MATSUSHITA

IPC: B22F12/17 ,  B29C64/153 ,  B29C64/295 ,  B29C64/245 ,  B29C64/371 ,  B22F12/30 ,  B33Y10/00 ,  B22F10/32 ,  B22F10/28

CPC classification number: B22F10/32 ,  B22F10/28 ,  B22F12/17 ,  B22F12/30 ,  B29C64/153 ,  B29C64/245 ,  B29C64/295 ,  B29C64/371 ,  B33Y10/00 ,  B22F2201/11

Abstract: The present disclosure provides an additive manufacturing method by which a uniform powder bed can be formed even when the interior of a chamber is depressurized and a powder bed is formed on a stage as the stage is preheated and an inert gas is supplied. An additive manufacturing method for a shaped object S includes forming a powder bed PB on a stage 51 in a chamber 10, and fusing the powder bed PB by laser emission. According to this additive manufacturing method, a pressure in the chamber 10 is reduced to a pressure equal to or higher than 8000 [Pa] and equal to or lower than 30,000 [Pa], and the powder bed PB is formed on the stage 51 as the stage 51 is preheated and an inert gas is supplied.

公开(公告)号：US20230191482A1

公开(公告)日：2023-06-22

申请号：US17768737

申请日：2020-08-17

Applicant: University of Science and Technology Beijing

Inventor： Xin LU ,  Yu PAN ,  Yucheng YANG ,  Jiazhen ZHANG ,  Wei XU ,  Bowen LIU ,  Ce ZHANG ,  Jianzhuo SUN ,  Yanjun LIU ,  Xuanhui QU

IPC: B22F3/10 ,  B22F1/12 ,  B22F1/05 ,  B22F9/04

CPC classification number: B22F3/1007 ,  B22F1/12 ,  B22F1/05 ,  B22F9/04 ,  B22F2009/043 ,  B22F2009/049 ,  B22F2201/11 ,  B22F2203/11 ,  B22F2301/205 ,  B22F2303/45

Abstract: The present invention provides a high-strength and high-plasticity titanium matrix composite and a preparation method thereof. The preparation method includes: preparing high-oxygen hydride-dehydride titanium powder using a high-temperature rotary ball grinding treatment process, in which the prepared hydride-dehydride titanium powder has a particle size of 10-40 μm, and has an oxygen content of 0.8-1.5 wt. %; preparing high-purity ultra-fine oxygen adsorbent powder using a wet grinding method of high-energy vibration ball grinding treatment process; in which a purity of the oxygen adsorbent powder is ≥99.9%, and a particle size of the oxygen adsorbent powder is ≤8 μm; mixing the high-oxygen hydride-dehydride titanium powder with the oxygen adsorbent powder in a protective atmosphere, and then press-forming the powder obtained after mixing to obtain a raw material blank; and performing atmosphere protective sintering treatment on the raw material blank to obtain a titanium matrix composite. The method prepares a titanium matrix composite reinforced by in-situ self-generating multi-scale Ca—Ti—O, TiC, TiB particles. The microstructure and grains are effectively refined, and the strength and plasticity of the material are significantly improved.

公开(公告)号：US20230162882A1

公开(公告)日：2023-05-25

申请号：US17776739

申请日：2021-10-20

Applicant: BEIJING DREAM INK TECHNOLOGIES CO., LTD.

Inventor： Zhenlong MEN ,  Zhongwei REN ,  Jiameng KANG

IPC: H01B1/22 ,  B22F1/103

CPC classification number: H01B1/22 ,  B22F1/103 ,  B22F2201/20 ,  B22F2201/11 ,  B22F2201/02

Abstract: A method for prepares low melting point metal particles, a conductive paste and a method for preparing the conductive paste, and relates to the technical field of functional materials. The method for preparing low melting point metal particles includes providing an organic resin carrier having fluidity, adding a low melting point metal material and the organic resin carrier into a sealed container for a vacuuming operation or filling a protective gas, making a temperature in the sealed container higher than the melting point of the low melting point metal and performing dispersion by stirring, and lowering the temperature, after performing the dispersion, to be below the melting point of the low melting point metal with continuous stirring during a cooling process to obtain low melting point metal particles dispersed in the organic resin carrier. Low melting point metal particles can be effectively prepared.

公开(公告)号：US11654483B2

公开(公告)日：2023-05-23

申请号：US16842159

申请日：2020-04-07

Applicant: AP&C Advanced Powders & Coatings Inc.

Inventor： Frederic Larouche ,  Matthieu Balmayer ,  Gabriel Dickson

IPC: B22F9/14 ,  B22F1/065 ,  B22F1/142 ,  B33Y70/00 ,  B22F9/20

CPC classification number: B22F9/14 ,  B22F1/065 ,  B22F1/142 ,  B33Y70/00 ,  B22F9/20 ,  B22F2201/11 ,  B22F2202/13 ,  B22F2301/052 ,  B22F2301/15 ,  B22F2301/205 ,  B22F2301/35 ,  B22F2304/10

Abstract: A powder treatment assembly and method for treating a feedstock powder of feedstock particles includes directing the feedstock powder into a plasma chamber within a reactor, exposing the feedstock powder to a plasma field generated by a plasma source to form a treated powder having treated particles with an increased average sphericity relative to the feedstock particles, and supplying a hot gas sheath flow downstream of the plasma chamber, the hot gas sheath flow substantially surrounding the treated powder.

公开(公告)号：US20190184642A1

公开(公告)日：2019-06-20

申请号：US16167203

申请日：2018-10-22

Applicant: CONCEPT LASER GMBH

Inventor： Christoph SCHMIDBAUER ,  Ralf HETZEL

IPC: B29C64/371 ,  B22F3/105 ,  B29C64/153 ,  B29C64/268

CPC classification number: B29C64/371 ,  B22F3/1055 ,  B22F2003/1057 ,  B22F2201/11 ,  B29C64/153 ,  B29C64/25 ,  B29C64/264 ,  B29C64/268 ,  B29C64/386 ,  B29C2037/94 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/00

Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy source, which apparatus (1) comprises a process chamber (3) with at least one build plane (4) in which build material is directly irradiatable, characterized by at least one safety device (14) adapted to determine at least one chemical and/or at least one physical parameter, wherein the safety device (14) is adapted to control an access state of the process chamber (3) dependent on the determined chemical and/or physical parameter.