公开(公告)号：US12129556B2

公开(公告)日：2024-10-29

申请号：US17112076

申请日：2020-12-04

申请人： SWAGELOK COMPANY

发明人： Cyprian Adair William Illing ,  Peter C. Williams ,  Christina Semkow ,  Todd Johns

IPC分类号： C23C8/22 ,  C21D1/06 ,  C23C8/26 ,  C23C8/30 ,  C23C8/32

CPC分类号： C23C8/22 ,  C21D1/06 ,  C23C8/26 ,  C23C8/30 ,  C23C8/32

摘要： A method for treating a workpiece made from a self-passivating metal and having a Beilby layer is disclosed. The method comprises exposing the workpiece to the vapors produced by heating a reagent having a guanidine [HNC(NH2)2] moiety and complexed with HCl to activate the workpiece for low temperature interstitial surface hardening.

公开(公告)号：US20240301541A1

公开(公告)日：2024-09-12

申请号：US18552031

申请日：2022-03-30

申请人： PARKER NETSUSHORI KOGYO CO., LTD.

发明人： Yasushi HIRAOKA

IPC分类号： C23C8/26

CPC分类号： C23C8/26

摘要： The invention is a nitriding treatment method for a steel component including at least three nitriding treatment steps. The first nitriding treatment step, the second nitriding treatment step and the third nitriding treatment step are performed at a temperature within a range of 500° C. to 590° C. The first nitriding potential for the first nitriding treatment step is a value within a range of 0.10 to 1.00. The second nitriding potential for the second nitriding treatment step is higher than the first nitriding potential and is a value within a range of 0.30 to 10.00. The third nitriding potential for the third nitriding treatment step is lower than the second nitriding potential and is a value within a range of 0.26 to 0.60.

公开(公告)号：US12080455B2

公开(公告)日：2024-09-03

申请号：US17475944

申请日：2021-09-15

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Daisuke Ichigozaki ,  Tetsuya Shoji ,  Noritsugu Sakuma ,  Akihito Kinoshita ,  Masaaki Ito

IPC分类号： H01F1/059 ,  C22C38/00 ,  C22C38/10 ,  C23C8/26 ,  H01F41/02

CPC分类号： H01F1/059 ,  C22C38/001 ,  C22C38/005 ,  C22C38/105 ,  C23C8/26 ,  H01F41/0253 ,  C22C2202/02

摘要： An Sm—Fe—N-based magnetic material according to the present disclosure includes a main phase having a predetermined crystal structure. The main phase has a composition represented by (Sm(1-x-y-z)LaxCeyR1z)2(Fe(1-p-q-s)CopNiqMs)17Nh (where, R1 is predetermined rare earth elements and the like, M is predetermined elements and the like, and 0.04≤x+y≤0.50, 0≤z≤0.10, 0≤p+q≤0.10, 0≤s≤0.10, and 2.9≤h≤3.1 are satisfied). A crystal volume of the main phase is 0.833 nm3 to 0.840 nm3. A manufacturing method of the Sm—Fe—N-based magnetic material according to the present disclosure includes nitriding a magnetic material precursor including a crystal phase having a composition represented by (Sm(1-x-y-z)LaxCeyR1z)2(Fe(1-p-q-s)CopNiqMs)17.

公开(公告)号：US20240274335A1

公开(公告)日：2024-08-15

申请号：US18568702

申请日：2022-06-02

申请人： NICHIA CORPORATION

发明人： Hisashi MAEHARA

IPC分类号： H01F1/059 ,  B22F1/05 ,  B22F1/10 ,  B22F1/145 ,  B22F9/22 ,  C22C38/00 ,  C22C38/12 ,  C23C8/26

CPC分类号： H01F1/059 ,  B22F1/05 ,  B22F1/10 ,  B22F1/147 ,  B22F9/22 ,  C22C38/001 ,  C22C38/005 ,  C22C38/12 ,  C23C8/26 ,  B22F2301/355 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

摘要： To provide a SmFeN-based anisotropic magnetic powder having excellent magnetic properties and a low oxygen content, and a production method thereof. A method of producing a SmFeN-based anisotropic magnetic powder includes preparing a SmFeN-based anisotropic magnetic powder before dispersion containing Sm, Fe, and N; and dispersing the SmFeN-based anisotropic magnetic powder before dispersion using resin-coated metal media or resin-coated ceramic media. The SmFeN-based anisotropic magnetic powder contains Sm, Fe, and N and has an average particle size in a range from 2.5 μm to 5 μm, a residual magnetization σr of 150 emu/g or more, and an oxygen content of 0.4 mass % or less.

公开(公告)号：US20240055165A1

公开(公告)日：2024-02-15

申请号：US18494838

申请日：2023-10-26

申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA

发明人： Jian-Ping WANG ,  Bin MA ,  Jinming LIU ,  Yiming WU ,  YanFeng JIANG

IPC分类号： H01F1/06 ,  B22F9/04 ,  C23C8/26 ,  C23C8/50 ,  C23C8/80 ,  H01F1/055 ,  H01F1/059 ,  C22C38/00 ,  C22C38/10 ,  B22F1/16 ,  B22F1/054

CPC分类号： H01F1/065 ,  B22F9/04 ,  C23C8/26 ,  C23C8/50 ,  C23C8/80 ,  H01F1/0551 ,  H01F1/059 ,  C22C38/00 ,  C22C38/001 ,  C22C38/10 ,  B22F1/16 ,  B22F1/054 ,  H01F1/061 ,  B22F1/0553 ,  B22F2301/35 ,  B22F2302/20 ,  B22F2304/054 ,  H01F1/0552 ,  B22F1/0547

摘要： Example nanoparticles may include an iron-based core, and a shell. The shell may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example alloy compositions may include an iron-based grain, and a grain boundary. The grain boundary may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example techniques for forming iron-based core-shell nanoparticles may include depositing a shell on an iron-based core. The depositing may include immersing the iron-based core in a salt composition for a predetermined period of time. The depositing may include milling the iron-based core with a salt composition for a predetermined period of time. Example techniques for treating a composition comprising core-shell nanoparticles may include nitriding the composition.

公开(公告)号：US11809140B2

公开(公告)日：2023-11-07

申请号：US17118808

申请日：2020-12-11

申请人： Seiko Epson Corporation

发明人： Koki Takasawa

IPC分类号： C23C8/00 ,  G04B37/22 ,  C23C28/00 ,  C23C8/26 ,  C21D6/00 ,  C21D9/00

CPC分类号： G04B37/22 ,  C21D6/002 ,  C21D9/0068 ,  C23C8/00 ,  C23C8/26 ,  C23C28/34 ,  C23C28/36 ,  C21D2211/001 ,  C21D2211/005

摘要： A housing is a housing formed of austenitized ferritic stainless steel including a base formed of a ferrite phase and a surfacing layer formed of an austenitized phase in which the ferrite phase is austenitized, the housing including a first surface exposed to an external space of the housing, and a second surface adjacent to the first surface with a corner portion interposed therebetween, and exposed to the external space, wherein an angle of an internal angle formed by the first surface and the second surface at the corner portion is greater than 0°, and less than 180°, and a surfacing layer at the corner portion is thicker in thickness than a surfacing layer in the first surface and a surfacing layer in the second surface.

公开(公告)号：US11761074B2

公开(公告)日：2023-09-19

申请号：US17124493

申请日：2020-12-17

申请人： JFE STEEL CORPORATION

发明人： Yukihiro Shingaki ,  Hirotaka Inoue

IPC分类号： F27D7/02 ,  C23C8/26 ,  C21D9/46 ,  C23C8/02 ,  C22C38/60 ,  H01F1/16 ,  C22C38/00 ,  C21D8/12 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/28 ,  C22C38/34 ,  C23F17/00 ,  F27B9/04 ,  F27D7/06

CPC分类号： C23C8/26 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1272 ,  C21D8/1277 ,  C21D9/46 ,  C22C38/00 ,  C22C38/002 ,  C22C38/008 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/28 ,  C22C38/34 ,  C22C38/60 ,  C23C8/02 ,  C23F17/00 ,  H01F1/16 ,  F27B9/045 ,  F27D7/02 ,  F27D7/06

摘要： A nitriding apparatus for manufacturing a grain-oriented electrical steel sheet is provided. The nitriding apparatus includes: a nitriding gas supply pipe for introducing gas including at least ammonia or nitrogen; and a nitriding treatment portion for successively performing high-temperature nitriding and low-temperature nitriding in nitriding treatment. The nitriding treatment portion includes a high-temperature treatment portion for performing the high-temperature nitriding and a low-temperature treatment portion for performing the low-temperature nitriding, and the nitriding gas supply pipe to the high-temperature treatment portion includes a cooling device.

公开(公告)号：US20230243025A1

公开(公告)日：2023-08-03

申请号：US18299934

申请日：2023-04-13

申请人： Cummins Inc.

发明人： Yang Su ,  Xiaoli Huang ,  Steven E. Ferdon ,  Ross A. Phillips ,  Manoj M. Thete ,  Brian J. Wright

IPC分类号： C22C38/44 ,  F02M61/16 ,  C22C38/06 ,  C22C38/04 ,  C23C8/26 ,  C22C38/46 ,  C21D1/18

CPC分类号： C22C38/44 ,  C21D1/18 ,  C22C38/04 ,  C22C38/06 ,  C22C38/46 ,  C23C8/26 ,  F02M61/166

摘要： A fuel system, comprising at least one fuel component formed of a steel alloy comprising 0.01-0.31 wt.% carbon, 0.0-0.20 wt.% silicon, 0.15-0.50 wt.% manganese, 0.0 - 0.015 wt.% phosphorous, 0.0-0.001 wt.% sulfur, 4.80-5.20 wt.% chromium, 4.80-6.20 wt.% nickel, 0.60-0.80 wt.% molybdenum, 0.0 - 0.550 wt.% vanadium, and 2.000-2.400 wt.% aluminum, wherein the at least one fuel component is configured to come in contact with fuel when fuel is ran through the fuel system.

公开(公告)号：US20230175092A1

公开(公告)日：2023-06-08

申请号：US17923780

申请日：2021-04-23

申请人： thyssenkrupp Rasselstein GmbH

发明人： Laura PÖRZGEN ,  Manuel KÖHL ,  Philipp SCHMALENBACH ,  Burkhard KAUP

IPC分类号： C21D9/48 ,  C21D8/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C8/26

CPC分类号： C21D9/48 ,  C21D8/0436 ,  C21D8/0457 ,  C21D8/0473 ,  C22C38/004 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C8/26

摘要： A method for producing a steel sheet for packaging includes: cold-rolling a hot-rolled steel sheet made from a steel having a carbon content of 10 to 1000 ppm by weight, the steel of the hot-rolled steel sheet having a predetermined recrystallization temperature (TR); heating the cold-rolled steel sheet to a predetermined heating temperature (TE), where TR≤TE, the heating performed at least partially in the presence of a nitrogen donor at least until TR is reached such that when the cold-rolled steel sheet is heated, nitrogen from the nitrogen donor is diffused at least into a near-surface region of the cold-rolled sheet steel and incorporated in the near-surface region, as a result of which the TR in the near-surface region is increased by a value ΔT, where TE

公开(公告)号：US20190211894A1

公开(公告)日：2019-07-11

申请号：US16351774

申请日：2019-03-13

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： Min Gyun CHUNG ,  Yoon Cheol KIM ,  Yoon Joo RHEE ,  Byung Chan LEE ,  Jae Young LEE

IPC分类号： F16D65/12 ,  C23C8/02 ,  C22C37/10 ,  C23C8/26

CPC分类号： F16D65/125 ,  C22C37/10 ,  C23C8/02 ,  C23C8/26 ,  F16D2200/0013 ,  F16D2250/0007 ,  F16D2250/0046 ,  F16D2250/0053

摘要： A method of manufacturing a brake disk made of gray cast iron is disclosed. The method includes casting a disk body using gray cast iron containing 3.1 wt % to 3.7 wt % of C; machining a surface of the cast disk body; nitriding the disk body by exposing the machined surface to a temperature in the range of 540° C. to 580° C. for 50 min to 70 min, and coating the nitrided disk body.