公开(公告)号：US20170225231A1

公开(公告)日：2017-08-10

申请号：US15421787

申请日：2017-02-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  FINE SINTER CO., LTD ,  Sanyo Special Steel Co., Ltd.

Inventor： Nobuyuki SHINOHARA ,  Kimihiko ANDO ,  Yoshihisa UEDA ,  Yusaku YOSHIDA ,  Masaru SUGIMOTO ,  Toshiyuki SAWADA ,  Shingo FUKUMOTO

IPC: B22F7/00 ,  C22C38/38 ,  C22C27/04 ,  C22C38/04 ,  C22C38/02 ,  B22F3/16 ,  C22C38/22

CPC classification number: B22F7/008 ,  B22F3/16 ,  B22F5/106 ,  B22F2301/35 ,  B22F2302/40 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  B32B15/01 ,  B32B15/18 ,  C22C1/04 ,  C22C1/05 ,  C22C1/051 ,  C22C1/053 ,  C22C1/055 ,  C22C1/10 ,  C22C27/04 ,  C22C27/06 ,  C22C29/02 ,  C22C30/00 ,  C22C33/0285 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/22 ,  C22C38/38 ,  C22C38/44 ,  C22C45/02 ,  C22C45/10 ,  Y10T428/12028 ,  Y10T428/12042 ,  Y10T428/12056 ,  Y10T428/1209 ,  Y10T428/12125 ,  Y10T428/12132 ,  Y10T428/12139 ,  Y10T428/12146 ,  Y10T428/12153 ,  Y10T428/12229 ,  Y10T428/12479 ,  Y10T428/12951 ,  Y10T428/12958 ,  Y10T428/12972 ,  Y10T428/12979 ,  C22C1/058 ,  C22C1/045 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/1039

Abstract: Mixed powder that contains first hard particles, second hard particles, graphite particles, and iron particles is used to manufacture a sintered alloy. The first hard particle is a Fe—Mo—Cr—Mn based alloy particle, the second hard particle is a Fe—Mo—Si based alloy particle. The mixed powder contains 5 to 50 mass % of the first hard particles, 1 to 8 mass % of the second hard particles, and 0.5 to 1.0 mass % of the graphite particles when total mass of the first hard particles, the second hard particles, the graphite particles, and the iron particles is set as 100 mass %.

公开(公告)号：US20180119256A1

公开(公告)日：2018-05-03

申请号：US15858573

申请日：2017-12-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kimihiko ANDO ,  Nobuyuki SHINOHARA

IPC: C22C33/02 ,  C22C38/12 ,  C22C38/04 ,  B22F3/12 ,  C22C1/04 ,  C22C27/04

CPC classification number: C22C33/0278 ,  B22F3/12 ,  B22F2201/02 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/045 ,  C22C27/04 ,  C22C33/0207 ,  C22C38/04 ,  C22C38/12 ,  B22F9/082 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/1007 ,  B22F9/04

Abstract: Hard particles are incorporated as a starting material in a sintered alloy. The hard particles may contain 20 to 60 mass % Mo, 3 to 15 mass % Mn, and more than 0.01 to 0.5 mass % C, the balance being Fe and unavoidable impurities.

公开(公告)号：US20160102387A1

公开(公告)日：2016-04-14

申请号：US14856628

申请日：2015-09-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kimihiko ANDO ,  Nobuyuki SHINOHARA

IPC: C22C19/07 ,  C22C30/00 ,  F01L3/02 ,  B23K10/02

CPC classification number: C22C19/07 ,  B23K35/0255 ,  B23K35/30 ,  B23K35/3046 ,  C22C30/00 ,  F01L3/02

Abstract: According the present invention, an alloy powder for overlay welding that prevents generation of gas defects in a weld overlay alloy in order to improve the toughness and wear resistance of the weld overlay alloy is provided. The alloy powder is an alloy powder for overlay welding on a steel surface containing nitrogen, which is characterized in that it contains 30% to 45% by mass of Mo, 10% to 30% by mass of Ni, 0.2% to 0.6% by mass of C, and 0.30% to 2.0% by mass of Al, with the balance made up of incidental impurities and Co.

Abstract translation: 根据本发明，提供了一种用于覆盖焊接的合金粉末，其防止焊接覆盖合金中的气体缺陷的产生，以提高焊接覆盖合金的韧性和耐磨性。 合金粉末是用于在含有氮的钢表面上进行覆盖焊接的合金粉末，其特征在于，其含有30质量％〜45质量％的Mo，10质量％〜30质量％的Ni，0.2〜0.6质量％ C的质量和0.30质量％至2.0质量％的Al，余量由偶然杂质和Co组成。

公开(公告)号：US20160052059A1

公开(公告)日：2016-02-25

申请号：US14814694

申请日：2015-07-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  FINE SINTER CO., LTD. ,  SANYO SPECIAL STEEL CO., LTD.

Inventor： Nobuyuki SHINOHARA ,  Kimihiko ANDOU ,  Yoshihisa UEDA ,  Yusaku YOSHIDA ,  Masaru SUGIMOTO ,  Toshiyuki SAWADA ,  Shingo FUKUMOTO

IPC: B22F3/12 ,  C22C38/04 ,  C22C33/02 ,  C22C38/22

CPC classification number: B22F3/12 ,  B22F2998/10 ,  C22C33/0207 ,  C22C33/0257 ,  C22C38/04 ,  C22C38/22 ,  C22C38/36 ,  C22C38/38 ,  B22F9/082 ,  B22F3/02 ,  B22F3/1007

Abstract: The object of the present invention is to provide a compact for producing a sintered alloy which allows a sintered alloy obtained by sintering the compact to have improved mechanical strength and wear resistance, a wear-resistant iron-based sintered alloy, and a method for producing the same. The wear-resistant iron-based sintered alloy is produced by: forming a compact for producing a sintered alloy from a powder mixture containing a hard powder, a graphite powder, and an iron-based powder by powder compacting; and sintering the compact for producing a sintered alloy while diffusing C in the graphite powder of the compact for producing a sintered alloy in hard particles that constitute the hard powder. The hard particles contain 10% to 50% by mass of Mo, 3% to 20% by mass of Cr, and 2% to 15% by mass of Mn, with the balance made up of incidental impurities and Fe, and the hard powder and the graphite powder contained in the powder mixture account for 5% to 60% by mass and 0.5% to 2.0% by mass of the total amount of the hard powder, the graphite powder, and the iron-based powder, respectively.

Abstract translation: 本发明的目的是提供一种用于制造烧结合金的致密体，其允许通过烧结该压坯获得的烧结合金具有改善的机械强度和耐磨性，耐磨铁基烧结合金以及制造方法 一样。 耐磨铁基烧结合金通过以下方法制造：通过粉末压制从包含硬质粉末，石墨粉末和铁基粉末的粉末混合物形成用于生产烧结合金的压块; 并烧结用于制造烧结合金的压坯，同时在用于制造硬质粉末的硬质合金的烧结合金的石墨粉末中扩散C。 硬质粒子含有10质量％〜50质量％的Mo，3质量％〜20质量％的Cr，2质量％〜15质量％的Mn，余量由偶然的杂质和Fe构成，硬质粉末 并且粉末混合物中所含的石墨粉末分别占硬粉末，石墨粉末和铁基粉末的总量的5〜60质量％和0.5〜2.0质量％。

公开(公告)号：US20170297149A1

公开(公告)日：2017-10-19

申请号：US15471144

申请日：2017-03-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Nobuyuki SHINOHARA ,  Yuki KAMO

IPC: B23K35/32 ,  B23K35/02 ,  F01L3/04 ,  B23K10/02 ,  F01L3/02 ,  C22C30/00 ,  B23K101/00

CPC classification number: B23K35/32 ,  B23K10/027 ,  B23K35/0244 ,  B23K2101/00 ,  B23K2101/006 ,  B23K2103/26 ,  C22C30/00 ,  F01L3/02 ,  F01L3/04 ,  F01L2101/00 ,  F01L2103/00

Abstract: Provided are a cladding alloy powder that can increase the wear resistance of a cladding alloy to be deposited and a counterpart member adapted to contact the cladding alloy, and a method for producing an engine valve using the cladding alloy powder. The cladding alloy powder includes 0.2 to 0.5 mass % C, 30 to 45 mass % Mo, 15 to 35 mass % Ni, 0.5 to 2.0 mass % Zr, and a balance including Co with unavoidable impurities. The method for producing an engine valve includes melting the cladding alloy powder, and cladding a valve face portion of an engine valve adapted to contact a valve seat with the melted cladding alloy powder.

公开(公告)号：US20170253950A1

公开(公告)日：2017-09-07

申请号：US15430707

申请日：2017-02-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Nobuyuki SHINOHARA ,  Kimihiko ANDO ,  Hironori AOYAMA

IPC: C22C9/06 ,  F01L5/00 ,  F01L1/12

CPC classification number: C22C9/06 ,  F01L1/12 ,  F01L3/02 ,  F01L3/04 ,  F01L5/00 ,  F01L2101/00 ,  F01L2103/00

Abstract: Provided is a copper-base alloy with excellent wear resistance. The wear-resistant copper-base alloy includes, by mass %: 5.0 to 30.0% nickel; 0.5 to 5.0% silicon; 3.0 to 20.0% iron; less than 1.0% chromium; less than or equal to 5.0% niobium; less than or equal to 2.5% carbon; 3.0 to 20.0% of at least one element selected from the group consisting of molybdenum, tungsten, and vanadium; 0.5 to 5.0% manganese and/or 0.5 to 5.0% tin; balance copper; and inevitable impurities, and has a matrix and hard particles dispersed in the matrix, when niobium is contained, the hard particles contain niobium carbide and at least one compound selected from the group consisting of Nb—C—Mo, Nb—C—W, and Nb—C—V around the niobium carbide, and when niobium is not contained, the hard particles contain at least one compound selected from the group consisting of molybdenum carbide, tungsten carbide, and vanadium carbide.

公开(公告)号：US20170209928A1

公开(公告)日：2017-07-27

申请号：US15412597

申请日：2017-01-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  FINE SINTER CO., LTD

Inventor： Nobuyuki SHINOHARA ,  Kimihiko ANDO ,  Yoshihisa UEDA ,  Yusaku YOSHIDA ,  Masaru SUGIMOTO

IPC: B22F3/10 ,  C22C38/02 ,  C22C38/10 ,  C22C38/04 ,  B22F1/00 ,  C22C38/12

CPC classification number: B22F3/10 ,  B22F1/0003 ,  B22F1/0011 ,  B22F2301/35 ,  B22F2304/10 ,  B22F2998/10 ,  C22C1/055 ,  C22C29/02 ,  C22C29/18 ,  C22C33/0292 ,  C22C38/02 ,  C22C38/04 ,  C22C38/10 ,  C22C38/105 ,  C22C38/12 ,  B22F9/082 ,  B22F2009/0828 ,  B22F9/04 ,  B22F3/02

Abstract: A sintered alloy is produced from mixed powder containing first hard particles, second hard particles, graphite particles, and iron particles. The first hard particles are Fe—Mo—Ni—Co—Mn—Si—C-based alloy particles, the second hard particles are Fe—Mo—Si-based alloy particles, the mixed powder contains 5 to 50 mass % of the first hard particles, 1 to 8 mass % of the second hard particles, and 0.5 to 1.5 mass % of the graphite particles, when total mass of the first hard particles, the second hard particles, the graphite particles, and the iron particles is set as 100 mass %.

公开(公告)号：US20240316624A1

公开(公告)日：2024-09-26

申请号：US18411461

申请日：2024-01-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shinya NAGASHIMA ,  Toshiyuki DOBASHI ,  Nobuyuki SHINOHARA ,  Mayumi NAKANISHI ,  Reona TAKAGISHI

IPC: B22D17/20 ,  B22D17/22

CPC classification number: B22D17/2069 ,  B21J15/025 ,  B22D17/00 ,  B22D17/2218

Abstract: In a casting step, a first member is cast by die casting. In the driving step after the casting step, a self-piercing rivet is driven into, from a second member side, an overlapping part in which the second member overlaps the first member, while heat from casting remains in the first member. As a result, the self-piercing rivet is driven into the first member in a state that the ductility is higher than that at the normal temperature. Therefore, the first member is less likely to crack during the driving step.

公开(公告)号：US20180326490A1

公开(公告)日：2018-11-15

申请号：US15974986

申请日：2018-05-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Nobuyuki SHINOHARA ,  Kimihiko ANDO ,  Toshiyuki KOSAI

IPC: B22F3/17 ,  B22F3/16

CPC classification number: B22F3/17 ,  B22F3/16 ,  B22F2301/10 ,  B22F2301/35 ,  B22F2302/40 ,  B22F2302/45 ,  B22F2998/10 ,  B22F2999/00

Abstract: A method of producing a sintered and forged member includes a mixing process in which a manganese-containing powder made of Fe—Mn—C—Si containing manganese as a main component, an iron powder made of Fe, a copper powder made of Cu, and a graphite powder made of graphite are mixed together to prepare a mixed powder; a molding process in which the mixed powder is compression-molded into a molded product; a sintering process in which, when the molded product is heated, copper derived from the copper powder and manganese contained in the manganese-containing powder are alloyed, the alloyed copper-manganese alloy is brought into a liquid phase state, and the molded product is sintered to produce a sintered product while elements of the copper-manganese alloy diffuse into an iron base of the molded product; and a process in which the sintered product is forged.

公开(公告)号：US20180080104A1

公开(公告)日：2018-03-22

申请号：US15703387

申请日：2017-09-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  FINE SINTER CO., LTD

Inventor： Nobuyuki SHINOHARA ,  Yuki KAMO ,  Yoshihisa UEDA ,  Takanori YONEDA ,  Yusaku YOSHIDA ,  Masaru SUGIMOTO

IPC: C22C38/22 ,  C22C38/20 ,  B22F1/00 ,  B22F3/16 ,  B22F3/24

Abstract: An iron alloy powder consists of, when the entirety thereof is assumed to be 100 mass %, Cr: 2.5 mass % to 3.5 mass %, Mo: 0.4 mass % to 0.6 mass %, and Fe and inevitable impurities as the balance, a mixed powder consisting of 15 mass % to 40 mass % of the iron alloy powder, 1.2 mass % to 1.8 mass % of a copper powder, 0.5 mass % to 1.0 mass % of a graphite powder, and a pure iron powder as the balance when the entire mixed powder is assumed to be 100 mass % is compacted into a compact, and the compact is sintered while transforming a structure derived from the pure iron powder into a structure in which a ferritic structure and a pearlitic structure are mixed and transforming a structure derived from the iron alloy powder into a martensitic structure.