公开(公告)号：US09988721B2

公开(公告)日：2018-06-05

申请号：US15195210

申请日：2016-06-28

Applicant: Delavan Inc

Inventor： Sergey Mironets ,  William L. Wentland ,  Matthew Donovan ,  Thomas J. Ocken ,  Robert Bianco

IPC: C23C22/82 ,  B33Y40/00

CPC classification number: C23C22/82 ,  B22F3/1055 ,  B22F3/24 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y40/00 ,  C23C8/04 ,  C23C8/40 ,  C23C8/80 ,  C23G1/061 ,  C25F1/12 ,  B22F2003/248 ,  B22F2003/241 ,  B22F2003/247 ,  B22F3/15 ,  B22F2201/03 ,  B22F2201/02 ,  B22F2201/30 ,  B22F2201/00 ,  C23F1/00 ,  C25F3/00

Abstract: A method includes additively manufacturing an article in an inert environment, removing the article from the inert environment and placing the article in a non-inert environment, allowing at least a portion the article to oxidize in the non-inert environment to form an oxidized layer on a surface of the article, and removing the oxidized layer (e.g., to smooth the surface of the article). The method can further include relieving stress in the article (e.g., via heating the article after additive manufacturing).

公开(公告)号：US20180137959A1

公开(公告)日：2018-05-17

申请号：US15794577

申请日：2017-10-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shinjiro SAIGUSA ,  Naoki IWATA ,  Masafumi SUZUKI ,  Masaaki NISHIYAMA ,  Jung Hwan HWANG ,  Masashi OHTSUBO

IPC: H01F1/147 ,  H01F41/02 ,  B22F1/02

CPC classification number: H01F1/14791 ,  B22F1/02 ,  B22F2301/35 ,  B22F2302/20 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0264 ,  H01F1/24 ,  H01F3/08 ,  H01F41/0246 ,  B22F1/0088 ,  B22F3/02 ,  B22F2003/248 ,  B22F2003/241 ,  B22F2201/05 ,  B22F2201/02

Abstract: A dust core includes: a plurality of soft magnetic particles each composed of an iron-based alloy containing aluminum, each of a surface of the plurality of soft magnetic particles being coated with an aluminum nitride film; and an aluminum oxide film with which at least the aluminum nitride films located at a surface of the dust core are entirely coated.

公开(公告)号：US20180119239A1

公开(公告)日：2018-05-03

申请号：US15800210

申请日：2017-11-01

Applicant: The NanoSteel Company, Inc.

Inventor： Charles D. TUFFILE ,  Harald LEMKE

IPC: C21D8/02 ,  C22C38/22 ,  C22C38/20 ,  C22C38/40 ,  C22C38/26 ,  C22C38/02 ,  C22C38/00 ,  B23K26/00

CPC classification number: C21D8/0257 ,  B22F1/0011 ,  B22F3/1055 ,  B22F9/082 ,  B22F2003/241 ,  B22F2003/248 ,  B22F2201/02 ,  B22F2201/30 ,  B22F2998/10 ,  B22F2999/00 ,  B23K26/0006 ,  C21D6/002 ,  C21D6/004 ,  C22C33/0278 ,  C22C38/001 ,  C22C38/02 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C23C8/22 ,  C23C8/44 ,  C23C8/48 ,  C23C8/54 ,  Y02P10/295

Abstract: The present invention relates to alloy compositions for 3D metal printing procedures which provide metallic parts with high hardness, tensile strengths, yield strengths, and elongation. The alloys include Fe, Cr and Mo and at least three or more elements selected from C, Ni, Cu, Nb, Si and N. As built parts indicate a tensile strength of at least 1000 MPa, yield strength of at least 640 MPa, elongation of at least 3.0% and hardness (HV) of at least 375.

公开(公告)号：US09920399B2

公开(公告)日：2018-03-20

申请号：US14123620

申请日：2012-04-27

Applicant: Tohru Shiraishi ,  Yoshiki Ono ,  Yuji Araoka

Inventor： Tohru Shiraishi ,  Yoshiki Ono ,  Yuji Araoka

IPC: C22C14/00 ,  C23C8/24 ,  C23C8/80 ,  C22F1/18 ,  B22F3/10 ,  B22F1/00 ,  B22F3/14 ,  C22C1/04 ,  A61L27/06 ,  B22F3/03 ,  B22F3/20

CPC classification number: C22C14/00 ,  A61L27/06 ,  B22F1/0088 ,  B22F3/03 ,  B22F3/10 ,  B22F3/14 ,  B22F2003/208 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0458 ,  C22F1/183 ,  C23C8/24 ,  C23C8/80 ,  B22F2201/02 ,  B22F9/06 ,  B22F1/004 ,  B22F2201/20 ,  B22F1/0003 ,  B22F3/15 ,  B22F3/105 ,  B22F3/20

Abstract: A titanium alloy member with high strength and high proof stress not only in the surface but also inside, using a general and inexpensive α-β type titanium alloy, and a production method therefor, are provided. The production method includes preparing a raw material made of titanium alloy, nitriding the raw material to form a nitrogen-containing raw material by generating a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the raw material, mixing the raw material and the nitrogen-containing raw material to yield a nitrogen-containing mixed material, sintering the nitrogen-containing mixed material to obtain a sintered titanium alloy member by bonding the material together and uniformly diffusing nitrogen in solid solution from the nitrogen-containing raw material to the entire interior portion of the sintered titanium alloy member, and hot plastic forming the sintered titanium alloy member.

公开(公告)号：US20180051382A1

公开(公告)日：2018-02-22

申请号：US15537279

申请日：2015-12-15

Applicant: UNIVERSITÉ LAVAL

Inventor： Marc-André FORTIN ,  Mathieu BOUCHARD ,  Christian SARRA-BOURNET ,  Stéphane TURGEON

IPC: C25C7/06 ,  B22F1/00 ,  B22F9/16 ,  C25C1/20 ,  C25C5/02 ,  C25C7/02 ,  H05H1/24

CPC classification number: C25C7/06 ,  B22F1/0014 ,  B22F1/0018 ,  B22F9/12 ,  B22F9/16 ,  B22F2301/255 ,  B22F2999/00 ,  C25C1/20 ,  C25C5/02 ,  C25C7/00 ,  C25C7/02 ,  H05H1/00 ,  H05H1/2406 ,  H05H2001/2412 ,  H05H2242/10 ,  H05H2245/124 ,  B22F9/24 ,  B22F2202/13 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/03 ,  B22F2201/04 ,  B22F2201/05 ,  B22F2201/10 ,  B22F2201/50

Abstract: A dielectric barrier discharge (DBD) plasma apparatus for synthesizing metal particles is provided. The DBD plasma apparatus includes an electrolyte vessel for receiving an electrolyte solution comprising metal ions; an electrode spaced-apart from the electrolyte vessel; a dielectric barrier interposed between the electrolyte vessel and the electrode such that, when the electrolyte solution is present in the electrolyte vessel, the dielectric barrier and an upper surface of the electrolyte solution are spaced-apart from each other and define a discharge area therebetween; and gas inlet and outlet ports in fluid communication with the discharge area such that supplying gas in the discharge area while applying an electrical potential difference between the electrode and the electrolyte solution cause a plasma to be produced onto the electrolyte solution, the plasma interacting with the metal ions and synthesizing metal particles. A method for synthesizing metal particles using a DBD plasma apparatus is also provided.

公开(公告)号：US20180009032A1

公开(公告)日：2018-01-11

申请号：US15205661

申请日：2016-07-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Rajendra Madhukar KELKAR ,  Pong Kwok CHAN ,  Singh PRABHJOT ,  Michael John MCCARREN ,  Arunkumar NATARAJAN ,  John T. LEMAN

IPC: B22F3/10 ,  B22F1/00 ,  B22F3/15 ,  B22F5/10 ,  B22C9/24 ,  B29L31/00

CPC classification number: B22F3/1017 ,  B22C9/24 ,  B22F1/0059 ,  B22F1/0062 ,  B22F3/1021 ,  B22F3/15 ,  B22F3/225 ,  B22F5/10 ,  B22F2001/0066 ,  B22F2005/103 ,  B22F2201/02 ,  B22F2301/15 ,  B22F2302/45 ,  B22F2998/10 ,  B22F2999/00 ,  B29C64/112 ,  B29L2031/757 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00 ,  Y02P10/295 ,  B22F5/007 ,  B22F3/1055

Abstract: Methods of making metal objects are provided. These methods generally involve adding a metal powder slurry into a sacrificial mold, such as a mold made by three dimensional printing, and heating the slurry/mold mixture. The heating steps may include curing the slurry to make a green part inside the mold, debinding to burn off the mold and binder to make a brown part, sintering, and hot isostatic pressing. Metal products, such as aircraft engine parts, are also provided.

公开(公告)号：US20170320135A1

公开(公告)日：2017-11-09

申请号：US15144992

申请日：2016-05-03

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Ying She ,  Aaron T Nardi ,  John A. Sharon

IPC: B22F1/00 ,  C21D9/00

CPC classification number: B22F1/0085 ,  B22F3/1055 ,  B22F5/009 ,  B22F5/04 ,  B22F2003/1056 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y70/00 ,  C21D9/0006 ,  C21D9/0062 ,  Y02P10/295 ,  B22F9/082 ,  B22F2202/15 ,  B22F2201/02 ,  B22F2201/10 ,  B22F2201/11

Abstract: A system for treatment of atomized powder including a fluidized bed operable to treat feedstock alloy powders. A method of treating atomized powder including communicating an inert gas into a fluidized bed; communicating an atomized powder into the fluidized bed; and heating the atomized powder in the fluidized bed, eject the treated powders out of the fluidized bed to quench the powders.

公开(公告)号：US20170239730A1

公开(公告)日：2017-08-24

申请号：US15503609

申请日：2015-08-11

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY ,  SIJTECHNOLOGY, INC.

Inventor： Naoki SHIRAKAWA ,  Kazuhiro MURATA

IPC: B22F7/04 ,  B22F5/12 ,  B22F1/00 ,  C25F7/00 ,  B05B7/14 ,  B05B13/02 ,  C25F1/00 ,  B22F3/105 ,  B01D53/32

CPC classification number: B22F7/04 ,  B01D53/326 ,  B05B7/1468 ,  B05B13/0285 ,  B22F1/0003 ,  B22F1/0074 ,  B22F3/003 ,  B22F3/105 ,  B22F3/24 ,  B22F5/12 ,  B22F2003/1042 ,  B22F2003/1051 ,  B22F2003/241 ,  B22F2201/02 ,  B22F2202/13 ,  B22F2301/10 ,  B22F2998/10 ,  B22F2999/00 ,  C23C18/1653 ,  C23C18/42 ,  C25D5/34 ,  C25F1/00 ,  C25F7/00 ,  H01B13/00 ,  H01L21/288 ,  H05K3/125 ,  H05K2203/095

Abstract: A processing device for a metal material, containing: an airtight container for housing a specimen thereinside; an oxygen pump for extracting oxygen molecules from a gas discharged from the airtight container; a circulation means for returning the gas into the airtight container; and a plasma generation means present inside the airtight container for converting the gas returned from the circulation means into plasma and exposing the specimen thereto.

公开(公告)号：US20170211167A1

公开(公告)日：2017-07-27

申请号：US15326473

申请日：2015-09-30

Applicant: HEYE SPECIAL STEEL CO., LTD ,  ADVANCED TECHNOLOGY&MATERIALS CO.,LTD

Inventor： Xiaoming Li ,  Lizhi Wu ,  Hailin Zhong ,  Xuebing Wang ,  Chunjiang Kuang ,  Yucheng Fang

IPC: C22C38/36 ,  C22C38/26 ,  C22C38/24 ,  C22C38/22 ,  B22F9/08 ,  C22C38/02 ,  C22C38/00 ,  B22F1/00 ,  B22F3/15 ,  C22C38/30 ,  C22C38/04

CPC classification number: C22C38/36 ,  B22F1/0003 ,  B22F3/15 ,  B22F9/082 ,  B22F2005/002 ,  B22F2009/0824 ,  B22F2009/0848 ,  B22F2009/0876 ,  B22F2201/02 ,  B22F2301/35 ,  B22F2998/10 ,  C22C33/0278 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/30

Abstract: A powder metallurgy wear-resistant tool steel includes chemical components by mass percent of: V: 12.2%-16.2%, Nb: 1.1%-3.2%, C: 2.6%-4.0%, Si: ≦2.0%, Mn: 0.2%-1.5%, Cr: 4.0%-5.6%, Mo: ≦3.0%, W: 0.1%-1.0%, Co: 0.05%-0.5%, N: 0.05%-0.7%, with balance iron and impurities; wherein a carbide component of the powder metallurgy wear-resistant tool steel is an MX carbide with a NaCl type face-centered cubic lattice structure; wherein an M element of the MX carbide comprises V and Nb, and an X element comprises C and N.

公开(公告)号：US20170103837A1

公开(公告)日：2017-04-13

申请号：US15389568

申请日：2016-12-23

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun ,  Yongli Duan

IPC: H01F1/057 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C22C38/00 ,  C22C33/04 ,  C22C33/02 ,  B22F9/10 ,  B22F9/02 ,  B22F3/087 ,  B22F3/10 ,  B22F3/16 ,  B22F3/24 ,  B22F5/00 ,  C21D8/12 ,  C21D9/00 ,  H01F41/02 ,  C22C38/16

CPC classification number: H01F1/0577 ,  B22F3/1017 ,  B22F2998/10 ,  B22F2999/00 ,  C21D8/1216 ,  C21D8/1244 ,  C21D9/0068 ,  C22C33/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F41/0273 ,  B22F2009/048 ,  B22F1/0055 ,  B22F9/023 ,  B22F2009/047 ,  B22F3/087 ,  B22F3/162 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2201/02 ,  B22F3/1007 ,  B22F2201/20

Abstract: A NdFeB magnet containing cerium and a manufacturing method thereof are provided. The manufacturing method includes steps of: refining a part of raw materials pure iron, ferro-boron, and rare earth fluoride in a crucible, adding a rest of the raw materials into the crucible and refining, casting a refined solution to a surface of a water-cooled rotation roller through a tundish and forming alloy flakes, processing the alloy flakes containing at least two different compositions with hydrogen decrepitation, milling powders, magnetic field pressing, vacuum presintering, machining and sintering, and obtaining the NdFeB magnet containing cerium. The NdFeB magnet containing cerium has a density of 7.5-7.7 g/cm3 and an average particle size of 3-7 μm; comprises a main phase and a grain boundary phase distributed around the main phase. A composite phase containing Tb is provided between the main phase and the grain boundary phase.