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公开(公告)号：US10788275B2
公开(公告)日：2020-09-29
申请号：US15528256
申请日：2015-11-18
Applicant: DENSO CORPORATION , UACJ Corporation
Inventor： Shusuke Otsuki , Shoei Teshima , Yuusuke Kitoh , Jun Abei , Tomohiro Shoji , Naoki Yamashita , Toshikazu Tanaka , Hirokazu Tanaka
Abstract: An aluminum alloy clad material includes a core material, one side being clad with cladding material 1, the other side being clad with cladding material 2, the core material including an aluminum alloy that includes 0.5 to 1.8% of Mn, and limited to 0.05% or less of Cu, with the balance being Al and unavoidable impurities, the cladding material 1 including an aluminum alloy that includes 3 to 10% of Si, and 1 to 10% of Zn, with the balance being Al and unavoidable impurities, and the cladding material 2 including an aluminum alloy that includes 3 to 13% of Si, and limited to 0.05% or less of Cu, with the balance being Al and unavoidable impurities, wherein the Si content X (%) in the cladding material 1 and the Si content Y (%) in the cladding material 2 satisfy the value (Y−X) is −1.5 to 9%.
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公开(公告)号：US20170321974A1
公开(公告)日：2017-11-09
申请号：US15528256
申请日：2015-11-18
Applicant: DENSO CORPORATION , UACJ Corporation
Inventor： Shusuke Otsuki , Shoei Teshima , Yuusuke Kitoh , Jun Abei , Tomohiko Shoji , Naoki Yamashita , Toshikazu Tanaka , Hirokazu Tanaka
Abstract: An aluminum alloy clad material includes a core material, one side being clad with cladding material 1, the other side being clad with cladding material 2, the core material including an aluminum alloy that includes 0.5 to 1.8% of Mn, and limited to 0.05% or less of Cu, with the balance being Al and unavoidable impurities, the cladding material 1 including an aluminum alloy that includes 3 to 10% of Si, and 1 to 10% of Zn, with the balance being Al and unavoidable impurities, and the cladding material 2 including an aluminum alloy that includes 3 to 13% of Si, and limited to 0.05% or less of Cu, with the balance being Al and unavoidable impurities, wherein the Si content X (%) in the cladding material 1 and the Si content Y (%) in the cladding material 2 satisfy the value (Y−X) is −1.5 to 9%.
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公开(公告)号：US20230150069A1
公开(公告)日：2023-05-18
申请号：US17916436
申请日：2021-03-26
Applicant: UACJ Corporation
Inventor： Shinichi Nakamura , Tomoki Yamayoshi , Taichi Suzuki , Hirokazu Tanaka
CPC classification number: B23K35/0238 , B23K35/288 , B23K2103/10
Abstract: Provided is a brazed aluminum member brazed with a member formed of a brazing sheet, in which two or more grooves are provided on a surface of the brazed aluminum member in a fillet forming area, a groove depth (D1) of the grooves is 0.005 mm to 0.50 mm, a groove width (W1) of the grooves is 0.005 mm to 0.50 mm, a ratio (W1/D1) of the groove width (W1) to the groove depth (D1) is 10.00 or less, and a space (P1) between adjacent grooves is 0.00 mm to 0.30 mm. The present invention can provide an aluminum material and a method for producing a brazed product that can secure good brazing properties even when the clearance between the jointed members is large in the case where the aluminum material is brazed without using a flux.
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公开(公告)号：US11491587B2
公开(公告)日：2022-11-08
申请号：US17287267
申请日：2019-10-25
Applicant: UACJ Corporation
Inventor： Tomoki Yamayoshi , Hidetoshi Kumagai , Hirokazu Tanaka , Taketoshi Toyama , Naoki Sugimoto , Nobuhiro Honma , Shogo Yamada
Abstract: An aluminum alloy brazing sheet used for brazing of an aluminum material in an inert gas atmosphere or in vacuum is formed of a two-layer material in which a brazing material and a core material are stacked. The core material is formed of an aluminum alloy and has a grain size of 20 to 300 μm, and the aluminum alloy contains Mn of 0.50 to 2.00 mass %, Mg of 0.40 to 2.00 mass %. Si of 1.50 mass % or less, Fe of 1.00 mass % or less, and Ti of 0.10 to 0.30 mass %, with the balance being aluminum and inevitable impurities. The brazing material is formed of an aluminum alloy containing Si of 4.00 to 13.00 mass % with the balance being aluminum and inevitable impurities. In a drop-type fluidity test, a ratio α (α=Ka/Kb) of a fluid coefficient Ka is 0.50 or more.
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公开(公告)号：US20220184750A1
公开(公告)日：2022-06-16
申请号：US17600705
申请日：2020-04-03
Applicant: UACJ Corporation
Inventor： Tomoki Yamayoshi , Taichi Suzuki , Hirokazu Tanaka
Abstract: An aluminum alloy brazing sheet used for brazing in an inert gas atmosphere without using a flux includes a brazing material cladded onto at least one side surface of a core material. An oxide is formed on a surface of the aluminum alloy brazing sheet by brazing heating, the oxide including any one or two or more of Mg, Li, and Ca and having a volume change ratio of 0.990 or less to a surface oxide film formed before brazing heating, and an atomic molar ratio of Mg, Li, and Ca to Al in the oxide formed on the surface of the aluminum alloy brazing sheet before brazing heating is 0.50 or less. The present invention provides an aluminum alloy brazing sheet having excellent brazability in brazing in an inert gas atmosphere without using a flux, and a method for manufacturing the same.
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Patent Agency Ranking
公开(公告)号：US20210379705A1
公开(公告)日：2021-12-09
申请号：US17287228
申请日：2019-10-25
Applicant: UACJ Corporation
Inventor： Tomoki Yamayoshi , Hidetoshi Kumagai , Hirokazu Tanaka
IPC: B23K35/28 , B23K35/02 , B23K35/38 , B32B15/01 , C22C21/10 , C22C21/08 , C22C21/02 , C22F1/053 , C22F1/047 , C22F1/043
Abstract: An aluminum alloy brazing sheet is formed of a brazing material, an intermediate material, a core material, and a brazing material. The intermediate material contains Mg of 0.40 to 6.00 mass %, and has total of contents of Mn, Cr, and Zr being 0.10 mass % or more. The core material contains Mg of 0.20 to 2.00 mass % and one or two or more of Mn of 1.80 mass % or less, Si of 1.50 mass % or less, Fe of 1.00 mass % or less, Cu of 1.20 mass % or less, Ti of 0.30 mass % or less, Zr of 0.30 mass % or less, and Cr of 0.30 mass % or less. Each of the core material and the intermediate material has a grain size of 20 to 300 μm, and each of the brazing materials contain Si of 4.00 to 13.00 mass %.
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公开(公告)号：US11813700B2
公开(公告)日：2023-11-14
申请号：US17628370
申请日：2020-07-06
Applicant: UACJ Corporation
Inventor： Tomoki Yamayoshi , Hidetoshi Kumagai , Hirokazu Tanaka , Taketoshi Toyama , Naoki Sugimoto , Nobuhiro Honma , Shogo Yamada , Takahiro Shinoda
CPC classification number: B23K35/286 , B23K35/0238 , B32B15/016 , C22C21/02 , C22C21/08 , C22F1/043 , C22F1/047
Abstract: An aluminum alloy brazing sheet is formed of a four-layer material formed of a brazing material, an intermediate material, a core material, and a brazing material. The intermediate material comprises Mg of 0.40 to 6.00 mass %, and has a total of contents of Mn, Cr, and Zr being 0.10 mass % or more. The core material comprises Mg of 0.20 to 2.00 mass % and comprises one or two or more of Mn of 1.80 mass % or less, Si of 1.05 mass % or less, Fe of 1.00 mass % or less, Cu of 1.20 mass % or less, Ti of 0.30 mass % or less, Zr of 0.30 mass % or less, and Cr of 0.30 mass % or less. Each of the core material and the intermediate material has a grain size of 20 to 300 μm.
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18.发明公开公开(公告)号：US20230166364A1
公开(公告)日：2023-06-01
申请号：US17913267
申请日：2021-03-25
Applicant: UACJ Corporation
Inventor： Tomoki Yamayoshi , Shinichi Nakamura , Taichi Suzuki , Hirokazu Tanaka , Nobuhiro Honma , Shogo Yamada , Taro Fukuda , Yosuke Uchida
CPC classification number: B23K35/288 , C22C21/02 , C22C21/10 , B23K2103/10
Abstract: An aluminum alloy bare material for a member to be brazed by flux-free brazing to a brazing sheet including a brazing material formed of an aluminum alloy that includes 3.00 to 13.00 mass % of Si and less than 0.10 mass % (including 0 mass %) of Mg with the balance being Al and inevitable impurities, in which the aluminum alloy bare material for the member to be brazed is formed of an aluminum alloy including 0.004 to 6.00 mass % of Zn and 0.004 to 3.00 mass % of Mg with the balance being Al and inevitable impurities. According to the present invention, aluminum alloy materials can be provided for members to be well brazed to the brazing sheet when an aluminum material is brazed by flux-free brazing.
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公开(公告)号：US11491586B2
公开(公告)日：2022-11-08
申请号：US17287293
申请日：2019-10-25
Applicant: UACJ Corporation
Inventor： Tomoki Yamayoshi , Hidetoshi Kumagai , Hirokazu Tanaka
Abstract: An aluminum alloy brazing sheet used for brazing of an aluminum material in an inert gas atmosphere or in vacuum is formed of a two-layer material in which a brazing material and a core material are stacked in this order. The core material is formed of an aluminum alloy and has a grain size of 20 to 300 μm, and the aluminum alloy contains Mn of 0.50 to 2.00 mass %, Mg of 0.40 to 2.00 mass %, Si of 1.50 mass % or less, and Fe of 1.00 mass % or less, with the balance being aluminum and inevitable impurities. The brazing material is formed of an aluminum alloy containing Si of 4.00 to 13.00 mass % with the balance being aluminum and inevitable impurities, and, in a drop-type fluidity test, a ratio α (α=Ka/Kb) of a fluid coefficient Ka is 0.50 or more.
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公开(公告)号：US11015234B2
公开(公告)日：2021-05-25
申请号：US15527604
申请日：2015-11-18
Applicant: UACJ CORPORATION
Inventor： Tomohiro Shoji , Naoki Yamashita , Toshikazu Tanaka , Hirokazu Tanaka
Abstract: A three-layer clad material includes a core material, a cladding material 1, and a cladding material 2, the core material including an aluminum alloy that includes 0.5 to 1.8% of Mn, and either or both of more than 0.05% and less than 0.2% of Cu, and 0.05 to 0.30% of Ti, with the balance being Al and unavoidable impurities, the cladding material 1 including an aluminum alloy that includes 3 to 10% of Si, and 1 to 10% of Zn, with the balance being Al and unavoidable impurities, and the cladding material 2 including an aluminum alloy that includes 3 to 13% of Si, and 0.05% or less of Cu, with the balance being Al and unavoidable impurities, wherein the Si content X (%) in the cladding material 1 and the Si content Y (%) in the cladding material 2 satisfy the value (Y−X) is −1.5 to 9%.
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