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公开(公告)号：US20150243401A1
公开(公告)日：2015-08-27
申请号：US14597699
申请日：2015-01-15
Applicant: Hitachi Metals, Ltd.
Inventor： Keisuke FUJITO , Hideyuki SAGAWA , Toru SUMI
IPC: H01B1/02
CPC classification number: H01B1/026 , Y10T428/294 , Y10T428/2942
Abstract: A conductor includes a copper alloy including crystal grains. The crystal grains include a first crystal grain group having a grain size larger than a predetermined standard grain size and a second crystal grain group having a grain size smaller than the predetermined standard grain size. The crystal grains have a local maximum value of grain size distribution in each of the first crystal grain group and the second crystal grain group.
Abstract translation: 导体包括含有晶粒的铜合金。 晶粒包括晶粒尺寸大于预定标准晶粒尺寸的第一晶粒组和晶粒尺寸小于预定标准晶粒尺寸的第二晶粒组。 晶粒在第一晶粒组和第二晶粒组各自具有粒度分布的局部最大值。
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2.发明申请公开(公告)号：US20180197652A1
公开(公告)日：2018-07-12
申请号：US15723643
申请日：2017-10-03
Applicant: Hitachi Metals, Ltd.
Inventor： Seigi AOYAMA , Toru SUMI , Takashi HAYASAKA , Ryohei OKADA , Detian HUANG , Tamotsu SAKURAI , Satoshi YAJIMA , Minoru TAKATSUTO , Hiroshi BANDO
IPC: H01B1/02 , C22F1/08 , H01B13/016 , H01B11/18 , B22D11/00
Abstract: A method for manufacturing a conductive wire includes conducting a continuous casting of a conductive alloy material at a casting rate of not less than 40 mm/min and not more than 200 mm/min to form a conductive wire with a primary diameter, the conductive alloy material containing not more than 1.0 mass % of an added metal element, reducing a diameter of the conductive wire with the primary diameter to form a conductive wire with a secondary diameter, heat treating the conductive wire with the secondary diameter so that tensile strength thereof is reduced to not less than 90% and less than 100% of tensile strength before the heat treating, and reducing a diameter of the conductive wire with the secondary diameter and the reduced tensile strength to generate a logarithmic strain of 7.8 to 12.0 therein to form a conductive wire with a tertiary diameter.
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3.发明申请公开(公告)号：US20200168355A1
公开(公告)日：2020-05-28
申请号：US16775428
申请日：2020-01-29
Applicant: Hitachi Metals, Ltd.
Inventor： Seigi AOYAMA , Toru SUMI , Takashi HAYASAKA , Ryohei OKADA , Detian HUANG , Tamotsu SAKURAI , Satoshi YAJIMA , Minoru TAKATSUTO , Hiroshi BANDO
IPC: H01B1/02 , H01B11/18 , H01B13/016 , B22D11/00 , C22F1/08
Abstract: A method for manufacturing a conductive wire includes conducting a continuous casting of a conductive alloy material at a casting rate of not less than 40 mm/min and not more than 200 mm/min to form a conductive wire with a primary diameter, the conductive alloy material containing not more than 1.0 mass % of an added metal element, reducing a diameter of the conductive wire with the primary diameter to form a conductive wire with a secondary diameter, heat treating the conductive wire with the secondary diameter so that tensile strength thereof is reduced to not less than 90% and less than 100% of tensile strength before the heat treating, and reducing a diameter of the conductive wire with the secondary diameter and the reduced tensile strength to generate a logarithmic strain of 7.8 to 12.0 therein to form a conductive wire with a tertiary diameter.
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4.发明申请公开(公告)号：US20140209349A1
公开(公告)日：2014-07-31
申请号：US14091674
申请日：2013-11-27
Applicant: HITACHI METALS, LTD.
Inventor： Hideyuki SAGAWA , Seigi AOYAMA , Toru SUMI , Keisuke FUJITO , Detian HUANG
IPC: H01B11/18 , H01B13/016
CPC classification number: H01B1/026
Abstract: A high-speed transmission cable conductor includes a core material includes mainly copper, and a surface treated layer formed around a surface of the core material. The surface treated layer includes an amorphous layer including a metal element having a higher affinity for oxygen than the copper, and oxygen.
Abstract translation: 高速传输电缆导体包括主要包括铜的芯材和在芯材表面周围形成的表面处理层。 表面处理层包括非晶层，其包括对铜的氧的亲和性高于铜的金属元素和氧。
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公开(公告)号：US20210005342A1
公开(公告)日：2021-01-07
申请号：US16681534
申请日：2019-11-12
Applicant: Hitachi Metals, Ltd.
Inventor： Toru SUMI , Kazuya Nishi , Shohei Hata , Takashi Hayasaka , Takeshi Usami
Abstract: A wire rod made of an aluminum alloy. The aluminum alloy includes Al crystal grains, an Al—Zr compound, and an Al—Co—Fe or Al—Ni—Fe compound. The aluminum alloy includes high-angle tilt crystal grain boundaries, each of which has a difference between crystal orientations in both its sides of 15 degrees or more, and low-angle tilt crystal grain boundaries, each of which has a difference between crystal orientations in both its sides of 2 degrees or more and less than 15 degrees. An average grain diameter of ones of the Al crystal grains surrounded by the high-angle boundaries is 12 μm or more. An average grain diameter of the ones of the Al crystal grains surrounded by the high-angle boundaries, ones of the Al crystal grains surrounded by the high-angle boundaries and the low-angle boundaries, and ones of the Al crystal grains surrounded by the low-angle boundaries, is 10 μm or less.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180254118A1
公开(公告)日：2018-09-06
申请号：US15909517
申请日：2018-03-01
Applicant: HITACHI METALS, LTD.
Inventor： Kazuya NISHI , Toru SUMI , Shohei HATA
CPC classification number: H01B1/023 , C22C21/00 , C22F1/04 , H01B5/08 , H01B7/0045 , H01B13/0006 , H01B13/0016 , H01B13/0285
Abstract: It is an objective of the invention to provide an Al alloy conductor exhibiting mechanical properties and heat resistance that are balanced at a higher level than conventional Al alloy conductors while having an electrical conductivity comparable to that of any conventional Al-based material. There is provided an Al alloy conductor formed of an Al alloy. The Al alloy has a chemical composition including Co of 0.1 mass % or more and 1 mass % or less, at least one of Sc of 0.1 mass % or more and 0.5 mass % or less and Zr of 0.2 mass % or more and 0.5 mass % or less, and the balance made up of Al and inevitable impurities. The Al alloy conductor has a matrix containing fine particles of a compound of at least one of the Sc and the Zr with the Al. The fine particles are dispersedly precipitated in the matrix.
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公开(公告)号：US20140205491A1
公开(公告)日：2014-07-24
申请号：US14140615
申请日：2013-12-26
Applicant: HITACHI METALS, LTD.
Inventor： Keisuke FUJITO , Seigi AOYAMA , Toru SUMI , Hideyuki SAGAWA , Yuju ENDO
Abstract: A copper alloy material includes an additional element M including Ti, and a balance having copper and an inevitable impurity. An atomic ratio of the additional element M to oxygen is in a range of 0.33≦M/O≦1.5.
Abstract translation: 铜合金材料包括包含Ti的附加元素M，以及具有铜和不可避免的杂质的余量。 附加元素M与氧的原子比在0.33≤n1E的范围内; M / O和nlE; 1.5。
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公开(公告)号：US20220316032A1
公开(公告)日：2022-10-06
申请号：US17705535
申请日：2022-03-28
Applicant: Hitachi Metals, Ltd.
Inventor： Kazuya NISHI , Toru SUMI , Shohei HATA
Abstract: Recrystallization of an aluminium alloy wire material is suppressed while a heat resistance of the same is improved. In a wire material made of an aluminium alloy, an aluminium alloy wire material is provided, the aluminium alloy containing Zr of 0.2 to 1.0 mass %, Co of 0.1 to 1.0 mass % and remainders that are aluminium and unavoidable impurities, and the aluminium alloy wire material having a tensile strength at a room temperature that is equal to or higher than 170 MPa, an elongation that is equal to or higher than 10%, and a stress at time of tensile deformation at a strain speed of 10−5/sec under a temperature condition of 250° C. that is equal to or higher than 40 MPa.
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公开(公告)号：US20200075193A1
公开(公告)日：2020-03-05
申请号：US16538106
申请日：2019-08-12
Applicant: Hitachi Metals, Ltd.
Inventor： Kazuhisa TAKAHASHI , Shohei HATA , Hiromitsu KURODA , Toru SUMI , Kazuya NISHI , Keisuke FUJITO , Takayuki TUJI
Abstract: Bendability of a copper alloy wire is improved without decrease in an electrical conductivity of the copper alloy wire made of copper alloy containing zirconium. A cable includes: a two-core stranded wire formed by intertwining two electrical wires made of a conductor and an insulating layer covering the conductor; a filler formed around the two-core stranded wire; and a sheath formed around the filler and the electrical wire. The conductor is a copper alloy wire in which a precipitate containing the zirconium disperses, and has a crystal gain diameter that is equal to or smaller than 1 μm, an electrical conductivity that is equal to or higher than 87% IACS, and a tensile stress that is equal to or larger than 545 MPa.
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公开(公告)号：US20160298212A1
公开(公告)日：2016-10-13
申请号：US15010780
申请日：2016-01-29
Applicant: Hitachi Metals, Ltd.
Inventor： Keisuke FUJITO , Takashi HAYASAKA , Takeshi USAMI , Toru SUMI
Abstract: An alloying-element additive for adding an alloy element to a copper melt formed by melting a base material including a copper in manufacturing a copper alloy. The alloying-element additive includes a wire-shaped or plate-shaped core including an alloy element, and an outer layer material including a copper and covering the core. A weight ratio of the copper in the outer layer material and the alloy element in the core is in a range of weight ratio where the alloying-element additive has a liquid phase in a temperature range of not more than a melting point of the copper in a copper-alloy element phase diagram.
Abstract translation: 一种合金元素添加剂，用于在制造铜合金时，通过熔化包含铜的基体而形成的铜熔体中添加合金元素。 合金元素添加剂包括包括合金元素的线状或板状芯，以及包含铜并覆盖芯的外层材料。 外层材料中的铜与芯中的合金元素的重量比在重量比的范围内，其中合金元素添加剂在不超过铜的熔点的温度范围内具有液相 铜合金元素相图。
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