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公开(公告)号：US20220281040A1
公开(公告)日：2022-09-08
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
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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公开(公告)号：US11235428B2
公开(公告)日：2022-02-01
申请号：US16977900
申请日：2019-03-05
Applicant: UACJ Corporation , DENSO CORPORATION
Inventor： Tatsuya Ide , Yutaka Yanagawa , Shogo Yamada , Takahiro Shinoda , Shingo Ono
Abstract: A flux-free brazing aluminum alloy brazing sheet includes: a core material formed of aluminum alloy comprising Si of 0.50 to 0.90 mass %, Cu of 0.30 to 2.50 mass %, and Mn of 1.40 to 1.80 mass %, with a Mg content limited to 0.05 mass % or less, and with the balance being Al and inevitable impurities; an intermediate material being formed of aluminum alloy comprising Mg of 0.40 to 1.00 mass %, and Zn of 2.00 to 6.00 mass %, with the balance being Al and inevitable impurities; and a brazing material being formed of aluminum alloy comprising Si of 6.00 to 13.00 mass %, Mg of 0.05 to 0.40 mass %, and Bi of 0.010 to 0.050 mass %, with the balance being Al and inevitable impurities.
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公开(公告)号：US11780034B2
公开(公告)日：2023-10-10
申请号：US17279873
申请日：2019-09-27
Applicant: UACJ Corporation , DENSO CORPORATION
Inventor： Shinichi Nakamura , Tomoki Yamayoshi , Takeyoshi Dokou , Takahiro Shinoda , Shogo Yamada , Yoshihiko Sonoda , Naoki Sugimoto , Nobuhiro Honma , Taketoshi Toyama
IPC: B23K35/28 , B23K20/04 , B23K35/02 , C22C21/02 , C22C21/08 , C23F1/20 , F28F3/02 , B23K103/10 , B23K101/14
CPC classification number: B23K35/286 , B23K20/04 , B23K35/0238 , C22C21/02 , C22C21/08 , C23F1/20 , F28F3/025 , B23K2101/14 , B23K2103/10 , F28F2275/04
Abstract: A brazing sheet (1) includes a core material (11) composed of an Al alloy that contains 0.20-3.0 mass % of Mg; and a filler material (12) layered on the core material and composed of an Al alloy that contains Mg, 6.0-13.0 mass % of Si, and more than 0.050 mass % and 1.0 mass % or less of Bi. The Mg concentration of the filler material becomes continuously lower in a direction from a boundary (122) with the core material to an outermost surface (121). The Mg concentration of the filler material is 0.150 mass % or less at a first depth from the outermost surface that is ⅛ of a thickness (tf) of the filler material and is 5-90% of the amount of Mg in the core material at a second depth from the outermost surface that is ⅞ of the thickness of the filler material.
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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：US20180251874A1
公开(公告)日：2018-09-06
申请号：US15907572
申请日：2018-02-28
Applicant: UACJ Corporation , DENSO CORPORATION
Inventor： Yusuke Ohashi , Atsushi Fukumoto , Shogo Yamada , Shinichiro Takise , Takahiro Shinoda
CPC classification number: C22C21/10 , F28F21/084 , F28F2275/04
Abstract: [Problem to be Solved]To provide a fin material made of an aluminum alloy for heat exchangers with no fin buckling deformation and having excellent buckling resistance in a temperature range of 400° C. to 580° C. before a filler alloy melts at the time of brazing.[Solution]The fin material made of an aluminum alloy for heat exchangers contains 1.0 to 2.0 mass % of Mn, 0.7 to 1.4 mass % of Si, and 0.05 to 0.3 mass % of Fe, with the balance being Al and unavoidable impurities, in which a number density of intermetallic compounds having a circle-equivalent diameter of 0.025 to 0.4 μm is 3.0×106 particles/mm2 or more, and an amount of solid solution of Mn is 0.3 mass % or less.
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Patent Agency Ranking
公开(公告)号：US20210394312A1
公开(公告)日：2021-12-23
申请号：US17287267
申请日：2019-10-25
Applicant: UACJ Corporation , DENSO 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：US20210087657A1
公开(公告)日：2021-03-25
申请号：US17108286
申请日：2020-12-01
Applicant: UACJ Corporation , DENSO CORPORATION
Inventor： Yusuke Ohashi , Atsushi Fukumoto , Shogo Yamada , Shinichiro Takise , Takahiro Shinoda
Abstract: A method of manufacturing a fin material made of an aluminum alloy for heat exchangers with no fin buckling deformation and having excellent buckling resistance in a temperature range of 400° C. to 580° C. before a filler alloy melts at the time of brazing is provided. The fin material made of an aluminum alloy for heat exchangers contains 1.0 to 2.0 mass % of Mn, 0.7 to 1.4 mass % of Si, and 0.05 to 0.3 mass % of Fe, with the balance being Al and unavoidable impurities, in which a number density of intermetallic compounds having a circle-equivalent diameter of 0.025 to 0.4 μm is 3.0×106 particles/mm2 or more, and an amount of solid solution of Mn is 0.3 mass % or less.
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公开(公告)号：US20210039207A1
公开(公告)日：2021-02-11
申请号：US16977900
申请日：2019-03-05
Applicant: UACJ Corporation , DENSO CORPORATION
Inventor： Tatsuya Ide , Yutaka Yanagawa , Shogo Yamada , Takahiro Shinoda , Shingo Ono
Abstract: A flux-free brazing aluminum alloy brazing sheet includes: a core material formed of aluminum alloy comprising Si of 0.50 to 0.90 mass %, Cu of 0.30 to 2.50 mass %, and Mn of 1.40 to 1.80 mass %, with a Mg content limited to 0.05 mass % or less, and with the balance being Al and inevitable impurities; an intermediate material being formed of aluminum alloy comprising Mg of 0.40 to 1.00 mass %, and Zn of 2.00 to 6.00 mass %, with the balance being Al and inevitable impurities; and a brazing material being formed of aluminum alloy comprising Si of 6.00 to 13.00 mass %, Mg of 0.05 to 0.40 mass %, and Bi of 0.010 to 0.050 mass %, with the balance being Al and inevitable impurities.
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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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10.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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