公开(公告)号：US12173389B2

公开(公告)日：2024-12-24

申请号：US17441441

申请日：2020-03-13

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Kodai Miura ,  Toshiyuki Sawada ,  Ryohei Hosomi

IPC: C22C38/10 ,  B22F1/00 ,  B22F1/068 ,  B22F1/10 ,  B22F1/142 ,  C22C38/06 ,  C22C38/16 ,  H01F1/147

Abstract: Provided is an alloy powder capable of obtaining a magnetic member therefrom in which the frequency FR is extremely high. The powder for the magnetic member is composed of a plurality of flaky particles. These flaky particles are composed of an Fe-based alloy including: 6.5% by mass or more and 32.0% by mass or less of Ni; 6.0% by mass or more and 14.0% by mass or less of Al; 0% by mass or more and 17.0% by mass or less of Co; and 0% by mass or more and 7.0% by mass or less of Cu; the balance being Fe and unavoidable impurities. The average thickness Tav of this powder is 3.0 μm or less. The saturation magnetization Ms of this powder is 0.9 T or more. The coercive force iHc of this powder is 16 kA/m or more. This Fe-based alloy has a structure resulting from spinodal decomposition.

公开(公告)号：US11987870B2

公开(公告)日：2024-05-21

申请号：US17621530

申请日：2020-07-17

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Tetsuji Kuse ,  Yoshikazu Aikawa ,  Yuichi Nagatomi

IPC: C22C9/00 ,  B22F1/00 ,  B22F1/05 ,  B22F1/06 ,  B22F1/065 ,  C22C9/06

CPC classification number: C22C9/00 ,  B22F1/00 ,  B22F1/05 ,  B22F1/06 ,  B22F1/065 ,  C22C9/06 ,  B22F2301/10 ,  B22F2304/10

Abstract: Provided is a Cu-based alloy powder that is suitable for a process involving rapid melting and rapid solidification and that can provide a shaped object superior in characteristics. The powder is composed of a Cu-based alloy, which contains an element M being one or more elements selected from Cr, Fe, Ni, Zr, and Nb: 0.1% by mass or more and 10.0% by mass or less, Si: more than 0% by mass and 0.20% by mass or less, P: more than 0% by mass and 0.10% by mass or less, and S: more than 0% by mass and 0.10% by mass or less, the balance being Cu and inevitable impurities. This powder has a ratio (D50/TD) of the average particle diameter D50 (μm) thereof to the tap density TD (Mg/m3) is 0.2×10−5·m4/Mg or more and 20×10−5·m4/Mg or less, and has a sphericity of 0.80 or more and 0.95 or less.

公开(公告)号：US20240043974A1

公开(公告)日：2024-02-08

申请号：US18266422

申请日：2021-12-09

Applicant: SANYO SPECIAL STEEL CO., LTD.

Inventor： Toru Hagiya ,  Tetsuzi Kuse ,  Hiroki Ikeda ,  Yasumasa Mutou

IPC: C22C38/46 ,  C22C38/44 ,  C22C38/06 ,  C22C38/02 ,  C22C38/04 ,  C22C33/02 ,  B33Y70/00

CPC classification number: C22C38/46 ,  C22C38/44 ,  C22C38/06 ,  C22C38/02 ,  C22C38/04 ,  C22C33/02 ,  B33Y70/00 ,  B33Y80/00

Abstract: Provided is a shaped article which can satisfy both high heat conducting properties and hardness (quenching and tempering hardness, and hardness after retention at a high temperature and softening). The shaped article produced from an Fe-based alloy powder, the Fe-based alloy powder consisting of, in mass %: 0.20 50.0; (3) PC

公开(公告)号：US11781204B2

公开(公告)日：2023-10-10

申请号：US17041041

申请日：2019-03-22

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Yuka Saimen

IPC: C22C38/04 ,  C22C38/22 ,  C22C38/32 ,  B22F1/052 ,  B22F5/00 ,  C22C38/30 ,  B33Y70/00 ,  C22C33/02 ,  C22C38/02 ,  C22C38/24 ,  B22F10/28 ,  B22F10/34

CPC classification number: C22C38/22 ,  B22F1/052 ,  B22F5/007 ,  B33Y70/00 ,  C22C33/0257 ,  C22C38/02 ,  C22C38/04 ,  C22C38/24 ,  C22C38/30 ,  C22C38/32 ,  B22F10/28 ,  B22F10/34 ,  C22C33/0278 ,  C22C33/0285 ,  Y02P10/25

Abstract: Provided is a powder for metal molds that is less likely to cause solidification cracking even in a process involving rapid melt-quenching solidification. The powder for metal molds is made of an alloy. The alloy includes C: 0.25 mass % to 0.45 mass %, Si: 0.01 mass % to 1.20 mass %, Mn: more than 0 mass % to 1.50 mass %, Cr: 2.0 mass % to 5.5 mass %, and V: 0.2 mass % to 2.1 mass %. The alloy further includes at least one of Mo: more than 0 mass % to 3.0 mass %, W: more than 0 mass % to 9.5 mass %, and Co: more than 0 mass % to 4.5 mass %. The balance of the alloy is Fe and incidental impurities. The alloy satisfies the expression: (Mn %)3/S %>6.7. The total content of P, S and B in the alloy is 0.020 mass % or less.

公开(公告)号：US11273490B2

公开(公告)日：2022-03-15

申请号：US16758949

申请日：2018-10-09

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Tetsuji Kuse ,  Shingo Fukumoto

IPC: B22F1/00 ,  B22F10/28 ,  B33Y10/00 ,  B22F1/05 ,  B33Y70/00 ,  B33Y80/00 ,  B22F10/64 ,  C22C38/10 ,  C22C33/02 ,  C22C38/08 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  B22F7/00 ,  B22F3/24

Abstract: Provided is an Fe-based metal powder that is suitable for a process involving rapid melt-quenching and solidification, and that provides a shaped article having superior properties. The metal powder for shaping is made of an Fe-based alloy. The Fe-based alloy contains: Ni in an amount of 15.0% to 21.0% by mass; Co in an amount of 0% to 10.0% by mass; Mo in an amount of 0% to 7.0% by mass; Ti in an amount of 0.1% to 6.0% by mass; Al in an amount of 0.1% to 3.0% by mass; and the balance composed of Fe and incidental impurities.

公开(公告)号：US20210398719A1

公开(公告)日：2021-12-23

申请号：US17279122

申请日：2019-09-18

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Takahisa Yamamoto ,  Koudai Miura ,  Toshiyuki Sawada

IPC: H01F1/147 ,  C22C45/00 ,  B22F1/02

Abstract: Provided is a powder suitable for a magnetic member capable of suppressing noise in a frequency range of 100 kHz to 20 MHz. The powder for a magnetic member contains a plurality of particles 2. The main part of the particle 2 is made of an alloy. The alloy contains B. The content of B in the alloy is 5.0 mass % or more and 8.0 mass % or less. The alloy may further contain one or more elements selected from the group consisting of Cr, Mn, Co, and Ni. The content of these elements is 0 mass % or more and 25 mass % or less. The balance of the alloy is Fe and unavoidable impurities. The alloy contains an Fe2B phase. The area percentage of the Fe2B phase in the alloy is 20 mass % or more and 80 mass % or less.

公开(公告)号：US20210025042A1

公开(公告)日：2021-01-28

申请号：US17041041

申请日：2019-03-22

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Yuka Saimen

IPC: C22C38/32 ,  B22F1/00

Abstract: Provided is a powder for metal molds that is less likely to cause solidification cracking even in a process involving rapid melt-quenching solidification. The powder for metal molds is made of an alloy. The alloy includes C: 0.25 mass % to 0.45 mass %, Si: 0.01 mass % to 1.20 mass %, Mn: more than 0 mass % to 1.50 mass %, Cr: 2.0 mass % to 5.5 mass %, and V: 0.2 mass % to 2.1 mass %. The alloy further includes at least one of Mo: more than 0 mass % to 3.0 mass %, W: more than 0 mass % to 9.5 mass %, and Co: more than 0 mass % to 4.5 mass %. The balance of the alloy is Fe and incidental impurities. The alloy satisfies the expression: (Mn %)3/S %>6.7. The total content of P, S and B in the alloy is 0.020 mass % or less.

公开(公告)号：US10669614B2

公开(公告)日：2020-06-02

申请号：US16303788

申请日：2017-05-22

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Hiroyuki Hasegawa ,  Yumeki Shinmura

IPC: C22C19/03 ,  C23C14/34 ,  G11B5/73 ,  G11B5/851 ,  B22F1/00

Abstract: A sputtering target material, wherein the strength of a sputtering target material can be enhanced without using pure Ta to prevent cracking during sputtering and generating particles and to suppress an irregular composition of a sputtered film, is provided. The present invention provides a sputtering target material containing, in at %, 35% to 50% of Ta with the balance being Ni and an inevitable impurity, wherein the sputtering target is composed only of a Ni2Ta compound phase and a NiTa compound phase, and a microstructure in each of the Ni2Ta compound phase and the NiTa compound phase has a maximum inscribed circle diameter of not more than 10 μm.

公开(公告)号：US20170301442A1

公开(公告)日：2017-10-19

申请号：US15516230

申请日：2015-09-29

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Fumihiro Maezawa ,  Toshiyuki Sawada

IPC: H01F1/147 ,  B22F1/00 ,  B22F9/08 ,  C22C38/02 ,  C21D1/773 ,  C22C38/06 ,  C21D6/00

Abstract: In accordance with the present invention, there are provided: a soft magnetic flattened powder having an average particle diameter, excellent sheet moldability, and a high magnetic permeability; and a method for producing the soft magnetic flattened powder. The soft magnetic flattened powder according to the present invention includes an Fe—Si—Al-based alloy, an average particle diameter D50 being 30 to less than 50 μm; a coercive force Hc measured by applying a magnetic field in the longitudinal direction of the flattened powder being 176 A/m or less; the ratio of a tap density to a true density being 0.18 or less; a specific surface area BET value being 0.6 m2/g or more; the amount of contained oxygen being 0.6 mass % or less; and the BET value and oxygen value of the soft magnetic powder satisfying expression (1): [oxygen value/BET value 0.50 (excluding zero)].

公开(公告)号：US20160346837A1

公开(公告)日：2016-12-01

申请号：US15164018

申请日：2016-05-25

Applicant: Sanyo Special Steel Co., Ltd.

Inventor： Toshiyuki Sawada

IPC: B22F1/00 ,  C22C38/56 ,  C22C38/52 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/38 ,  C22C38/36 ,  C22C38/30 ,  C22C38/26 ,  C22C38/24 ,  C22C38/22 ,  C22C38/04 ,  C22C38/02 ,  C22C38/58

CPC classification number: B22F1/0003 ,  B22F9/082 ,  B22F2003/023 ,  B22F2009/0828 ,  B22F2998/10 ,  B22F2999/00 ,  C22C27/06 ,  C22C33/0285 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/30 ,  C22C38/36 ,  C22C38/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  C22C38/56 ,  C22C38/58 ,  B22F2201/02 ,  B22F3/02 ,  B22F3/10

Abstract: It is an object of the present invention to provide an alloy powder that has high hardness and high corrosion resistance and can be produced from inexpensive raw materials, as well as to provide a shot material for shot peening, a powder metallurgical composition, and an iron-based sintered alloy using the alloy powder, and, in order to achieve such an object, there are provided an alloy powder including, in mass %, C: 0.6% or more and 2.4% or less, Cr: 36% or more and 60% or less, Mn: 0.1% or more and 10% or less, Mo: 0% or more and 10% or less, Si: 0% or more and less than 2%, Ni: 0% or more and 15% or less, Co: 0% or more and 5% or less, W: 0% or more and 5% or less, V: 0% or more and 5% or less, Nb: 0% or more and 5% or less, and the balance of Fe and unavoidable impurities, as well as the shot material for shot peening, the powder metallurgical composition, and the iron-based sintered alloy using the alloy powder.