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1. 发明授权

US11355258B2 Aluminum alloy wire rod and producing method therefor 有权
公开(公告)号：US11355258B2
公开(公告)日：2022-06-07
申请号：US16681534
申请日：2019-11-12
申请人： Hitachi Metals, Ltd.
发明人： Toru Sumi , Kazuya Nishi , Shohei Hata , Takashi Hayasaka , Takeshi Usami
IPC分类号： H01B1/02 , C22F1/04 , C22F1/00 , C22C21/00
摘要： 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.

2. 发明授权

US10720258B2 Method for manufacturing a conductive wire 有权
公开(公告)号：US10720258B2
公开(公告)日：2020-07-21
申请号：US15723643
申请日：2017-10-03
申请人： Hitachi Metals, Ltd.
发明人： Seigi Aoyama , Toru Sumi , Takashi Hayasaka , Ryohei Okada , Detian Huang , Tamotsu Sakurai , Satoshi Yajima , Minoru Takatsuto , Hiroshi Bando
IPC分类号： H01B1/02 , C22F1/08 , B22D11/00 , H01B11/18 , H01B13/016
摘要： 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.

3. 发明授权

US10192649B2 Aluminum alloy conductor, insulated wire including the conductor, and method for manufacturing the insulated wire 有权
公开(公告)号：US10192649B2
公开(公告)日：2019-01-29
申请号：US15909517
申请日：2018-03-01
申请人： HITACHI METALS, LTD.
发明人： Kazuya Nishi , Toru Sumi , Shohei Hata
IPC分类号： H01B1/02 , H01B7/00 , H01B5/08 , C22C21/00 , C22F1/04
摘要： 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.

4. 发明授权

US09564255B2 High-speed transmission cable conductor, and producing method thereof, and high-speed transmission cable 有权
标题翻译：高速传输电缆导体及其制造方法以及高速传输电缆
公开(公告)号：US09564255B2
公开(公告)日：2017-02-07
申请号：US14091674
申请日：2013-11-27
申请人： HITACHI METALS, LTD.
发明人： Hideyuki Sagawa , Seigi Aoyama , Toru Sumi , Keisuke Fujito , Detian Huang
IPC分类号： H01B11/18 , H01B13/016 , H01B1/02
CPC分类号： H01B1/026
摘要： 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.
摘要翻译：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。

5. 发明授权

US11545277B2 Copper alloy wire, cable, and method of manufacturing copper alloy wire 有权
公开(公告)号：US11545277B2
公开(公告)日：2023-01-03
申请号：US16538106
申请日：2019-08-12
申请人： Hitachi Metals, Ltd.
发明人： Kazuhisa Takahashi , Shohei Hata , Hiromitsu Kuroda , Toru Sumi , Kazuya Nishi , Keisuke Fujito , Takayuki Tuji
IPC分类号： H01B1/02 , C22C9/00 , C22F1/08 , H01B13/00
摘要： 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.

6. 发明授权

US09293231B2 Audio/Video cable 有权
标题翻译：音频/视频电缆
公开(公告)号：US09293231B2
公开(公告)日：2016-03-22
申请号：US14328958
申请日：2014-07-11
申请人： Hitachi Metals, Ltd.
发明人： Seigi Aoyama , Toru Sumi , Masayoshi Goto
IPC分类号： H01B7/00 , H01B1/02
CPC分类号： H01B1/026
摘要： An audio/video cable includes an insulated layer including a copper conductor for transmitting audio/video signals and an insulation layer formed on a periphery thereof. The copper conductor includes a soft dilute copper alloy material containing pure copper, Ti as an additive element and an inevitable impurity as a balance. The soft dilute copper alloy material includes a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains. The soft dilute copper alloy material includes not less than 2 and not more than 12 mass ppm of sulfur, more than 2 mass ppm but not more than 30 mass ppm of oxygen, and not less than 4 and not more than 55 mass ppm of Ti.
摘要翻译：音频/视频电缆包括绝缘层，包括用于传输音频/视频信号的铜导体和在其周边上形成的绝缘层。铜导体包括含有纯铜，作为添加元素的Ti和余量的不可避免的杂质的软的稀铜合金材料。软的稀铜合金材料包括具有表面层中的晶粒小于内部晶粒的晶粒尺寸分布的再结晶结构。软的稀铜合金材料包括不低于2且不大于12质量ppm的硫，大于2质量ppm但不大于30质量ppm的氧，并且不小于4且不大于55质量ppm的Ti 。

7. 发明授权

US11053569B2 Alloying-element additive and method of manufacturing copper alloy 有权
公开(公告)号：US11053569B2
公开(公告)日：2021-07-06
申请号：US15010780
申请日：2016-01-29
申请人： Hitachi Metals, Ltd.
发明人： Keisuke Fujito , Takashi Hayasaka , Takeshi Usami , Toru Sumi
IPC分类号： C22C9/00 , C22C1/06 , C22C1/02 , B21C37/04 , H01B1/00 , B21C1/02 , B21C1/00
摘要： 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.

8. 发明授权

US10920306B2 Aluminum alloy wire rod and producing method thereof 有权
公开(公告)号：US10920306B2
公开(公告)日：2021-02-16
申请号：US16191622
申请日：2018-11-15
申请人： HITACHI METALS, LTD.
发明人： Toru Sumi , Kazuya Nishi , Shohei Hata , Takashi Hayasaka , Takeshi Usami
IPC分类号： C22C21/00 , C22F1/04 , H01B1/02
摘要： An aluminum alloy wire rod has a chemical composition consisting of 0.1 to 1.0 mass % of Co, 0.2 to 0.5 mass % of Zr, 0.02 to 0.09 mass % of Fe, 0.02 to 0.09 mass % of Si, 0 to 0.2 mass % of Mg, 0 to 0.10 mass % of Ti, 0 to 0.03 mass % of B, 0 to 1.00 mass % of Cu, 0 to 0.50 mass % of Ag, 0 to 0.50 mass % of Au, 0 to 1.00 mass % of Mn, 0 to 1.00 mass % of Cr, 0 to 0.50 mass % of Hf, 0 to 0.50 mass % of V, 0 to 0.50 mass % of Sc, 0 to 0.50 mass % of Ni, the balance being Al and inevitable impurities, and a metal structure including Al crystal grains, an Al—Co—Fe compound and an Al—Zr compound. The Al crystal grains having a crystal grain diameter of 10 μm or less have an area ratio of 90% or more. The wire rod has a tensile strength of 150 MPa or more, an electrical conductivity of 55% IACS or more and when heated at 200 deg C. for 10 years, a strength of 90% or more of its initial state strength.

9. 发明申请

US20140318827A1 Audio/Video Cable 审中-公开
标题翻译：音频/视频线
公开(公告)号：US20140318827A1
公开(公告)日：2014-10-30
申请号：US14328958
申请日：2014-07-11
申请人： Hitachi Metals, Ltd.
发明人： Seigi Aoyama , Toru Sumi , Masayoshi Goto
IPC分类号： H01B1/02
CPC分类号： H01B1/026
摘要： An audio/video cable includes an insulated layer including a copper conductor for transmitting audio/video signals and an insulation layer formed on a periphery thereof. The copper conductor includes a soft dilute copper alloy material containing pure copper, Ti as an additive element and an inevitable impurity as a balance. The soft dilute copper alloy material includes a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains. The soft dilute copper alloy material includes not less than 2 and not more than 12 mass ppm of sulfur, more than 2 mass ppm but not more than 30 mass ppm of oxygen, and not less than 4 and not more than 55 mass ppm of Ti.
摘要翻译：音频/视频电缆包括绝缘层，包括用于传输音频/视频信号的铜导体和在其周边上形成的绝缘层。铜导体包括含有纯铜，作为添加元素的Ti和余量的不可避免的杂质的软的稀铜合金材料。软的稀铜合金材料包括具有表面层中的晶粒小于内部晶粒的晶粒尺寸分布的再结晶结构。软的稀铜合金材料包括不低于2且不大于12质量ppm的硫，大于2质量ppm但不大于30质量ppm的氧，并且不小于4且不大于55质量ppm的Ti 。

10. 发明申请

US20140302342A1 COPPER WIRE AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：铜线及其制造方法
公开(公告)号：US20140302342A1
公开(公告)日：2014-10-09
申请号：US14221188
申请日：2014-03-20
申请人： Hitachi Metals, Ltd.
发明人： Seigi AOYAMA , Toru Sumi , Hideyuki Sagawa , Keisuke Fujito , Masayoshi Goto , Hiroyoshi Hiruta
IPC分类号： C22F1/08 , C22C9/00
CPC分类号： C22F1/08 , C22C9/00 , Y10T428/1266
摘要： A copper wire includes a copper wire rod including 5 to 55 mass ppm of Ti, 3 to 12 mass ppm of sulfur, and 2 to 30 mass ppm of oxygen with the balance copper and inevitable impurities, a first crystal including a [111] crystal orientation and at least one twin crystal therein, and a second crystal that includes one or more crystals adjacent to the first crystal, a [111] crystal orientation with a different rotation angle on an atomic plane from the first crystal, and at least one twin crystal therein.
摘要翻译：铜线包括铜线，其包含5〜55质量ppm的Ti，3〜12质量ppm的硫和2〜30质量ppm的氧，余量为铜和不可避免的杂质，含有[111]晶体的第一晶体取向和其中的至少一个双晶，以及包括与第一晶体相邻的一个或多个晶体的第二晶体，在与第一晶体的原子平面上具有不同旋转角度的[111]晶体取向，以及至少一个双晶体。

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