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公开(公告)号：US20230150048A1
公开(公告)日：2023-05-18
申请号：US17916357
申请日：2021-03-26
Applicant: UACJ Corporation
Inventor： Shinichi Nakamura , Tomoki Yamayoshi , Taichi Suzuki , Hirokazu Tanaka
CPC classification number: B23K1/19 , B23K35/0238 , B23K35/284 , C22C21/10 , 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 provides an aluminum alloy material and a method for manufacturing a brazed body 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：US11772205B2
公开(公告)日：2023-10-03
申请号：US17794809
申请日：2020-03-30
Applicant: UACJ Corporation
Inventor： Shinichi Nakamura , Tomoki Yamayoshi , Takeyoshi Dokou
CPC classification number: B23K35/286 , B23K35/0238 , C21D8/0226 , C22C21/02 , C22C21/06 , B23K2103/10
Abstract: A brazing sheet (1) includes a core material (11) composed of an Al alloy containing 0.40-2.50 mass % Mg; and a filler material (12) composed of an Al alloy containing Mg, 6.0-13.0 mass % Si, and 0.010-0.050 mass % Bi. The filler material is layered on a side of the core material and is exposed at an outermost surface (121). The Mg concentration in the filler material continuously decreases in a direction from a boundary (122) with the core material toward the outermost surface. The Mg concentration (c1/8) is 0.080 mass % or less at a depth (position P1/8) from the outermost surface that is ⅛ of the thickness tf of the filler material (12). The Mg concentration (c7/8) is 15-45% of the amount of Mg in the core material at a depth (position P7/8) from the outermost surface that is ⅞ of the thickness tf of the filler material.
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公开(公告)号：US20230134532A1
公开(公告)日：2023-05-04
申请号：US17913489
申请日：2021-03-25
Applicant: UACJ Corporation
Inventor： Tomoki Yamayoshi , Shinichi Nakamura , Taichi Suzuki , Hirokazu Tanaka , Shogo Yamada , Taro Fukuda , Yosuke Uchida , Nobuhiro Honma
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 0.10 to 2.00 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 with the brazing material including Mg when an aluminum material is brazed by flux-free brazing.
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Patent Agency Ranking
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：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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6.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：US20240399710A1
公开(公告)日：2024-12-05
申请号：US18700106
申请日：2022-09-26
Applicant: UACJ Corporation
Inventor： Shinichi Nakamura , Tomohiro Shoji , Ryo Tomori
Abstract: An aluminum alloy clad material for a heat exchanger comprises a cladding material on one side surface or both side surfaces of a core material, wherein the core material comprises: Mn at 0.50 to 1.80 mass %; and one or more types selected from Cu at more than 0.05 mass % and less than 0.20 mass % and Ti at 0.05 to 0.30 mass % with the balance being Al and inevitable impurities, and the cladding material comprises: Si at 3.00 to 10.00 mass %; Fe at 0.30 to 0.80 mass %; Mn at 0.30 to 1.80 mass %; and Zn at 1.00 to 5.00 mass % with the balance being Al and inevitable impurities, in which the total content of the Fe and the Mn is 2.10 mass % or less.
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公开(公告)号：US11255618B2
公开(公告)日：2022-02-22
申请号：US16718717
申请日：2019-12-18
Applicant: UACJ CORPORATION , UACJ EXTRUSION CORPORATION , DENSO CORPORATION
Inventor： Shinichi Nakamura , Naoki Yamashita , Seiichi Nagao , Satoshi Shibata , Kazuhisa Naitou , Takeshi Okinotani , Susumu Ichikawa , Akira Itoh
IPC: F28F19/06 , B21C23/22 , C22C21/10 , F28F21/08 , C22C21/12 , F28F1/04 , B21C23/08 , F28F1/02 , C23F13/08
Abstract: In this flat extruded aluminum multi-port tube, the corrosion-resistance, at inner surfaces of a plurality of flow passages independently and parallelly extending in the tube axial direction, is effectively enhanced. In a flat extruded aluminum multi-port tube 10 formed by an extrusion by employing an aluminum tube material and an aluminum sacrificial anode material having an electrochemically lower potential than the aluminum tube material, the aluminum sacrificial anode material is exposed to form a sacrificial anode portion 18 at least in a part of an inner circumferential portion in each of the plurality of flow passages 12.
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