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1.发明授权公开(公告)号：US09789564B2
公开(公告)日：2017-10-17
申请号：US13715545
申请日：2012-12-14
Applicant: DENSO CORPORATION , UACJ CORPORATION
Inventor： Akira Yanagida , Shoei Teshima , Takeshi Iguchi , Masakazu Morimoto , Kotaro Kitawaki , Kazuyoshi Nakashima , Takashi Murase
IPC: B23K20/00 , B23K35/28 , F28F21/08 , B23K35/36 , B23K35/38 , B23K35/02 , B23K101/14 , B23K103/10 , B23K103/12 , B23K103/18
CPC classification number: B23K20/002 , B23K35/0222 , B23K35/0233 , B23K35/0244 , B23K35/286 , B23K35/3603 , B23K35/3605 , B23K35/383 , B23K2101/14 , B23K2103/10 , B23K2103/12 , B23K2103/18 , F28F21/084 , F28F21/085 , F28F2275/04
Abstract: The disclosed method relates to manufacturing a heat exchanger which causes no brazing defects, and a heat exchanger manufactured by the method. The method relates to manufacturing a heat exchanger having an aluminum alloy tube defining a cooling-medium flowing passage and a copper alloy tube defining a water flowing passage, wherein a heat exchange is carried out between a cooling medium flowing through the cooling-medium flowing passage and water flowing through the water flowing passage. The aluminum alloy tube and the copper alloy tube are brazed to each other at a temperature of less than 548° C.
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公开(公告)号：US10688601B2
公开(公告)日：2020-06-23
申请号：US15742393
申请日：2016-07-08
Applicant: DENSO Corporation , UACJ CORPORATION
Inventor： Taichi Asano , Masaki Harada , Shoei Teshima , Makoto Ando , Naoki Yamashita
IPC: B23K35/28 , F28F21/08 , B32B15/01 , C22F1/04 , C22C21/00 , B23K35/02 , C22C21/02 , C22C21/08 , C22C21/10 , C22F1/047 , C22F1/053 , F28D1/03
Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 μm inclusive in the intermediate layer material before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 μm inclusive in the intermediate layer material after brazing heating is at least 1.0×104 pieces/mm2. Further provided is a method for producing the aluminum alloy clad material.
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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：US10094629B2
公开(公告)日：2018-10-09
申请号：US14442520
申请日：2013-11-12
Applicant: DENSO CORPORATION , UACJ CORPORATION
Inventor： Shusuke Otsuki , Shoei Teshima , Kouichi Nakashita , Kouta Hagihara , Toshikazu Tanaka , Ryoko Fujimura , Naoki Yamashita , Hirokazu Tanaka
Abstract: An aluminum alloy clad material includes a core material, an inner cladding material, and a sacrificial anode material, one side of the core material being clad with the inner cladding material, the other side of the core material being clad with the sacrificial anode material, the core material being formed of an Al—Mn alloy that includes 0.6 to 2.0 mass % of Mn and 0.4 mass % or less of Cu, with the balance being aluminum and unavoidable impurities, the inner cladding material being formed of an Al—Mn—Cu alloy that includes 0.6 to 2.0 mass % of Mn and 0.2 to 1.5 mass % of Cu, with the balance being aluminum and unavoidable impurities, and the sacrificial anode material being formed of an Al—Zn alloy that includes 0.5 to 10.0 mass % of Zn, with the balance being aluminum and unavoidable impurities.
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Patent Agency Ranking
公开(公告)号：US20180193960A1
公开(公告)日：2018-07-12
申请号：US15742393
申请日：2016-07-08
Applicant: DENSO Corporation , UACJ CORPORATION
Inventor： Taichi Asano , Masaki Harada , Shoei Teshima , Makoto Ando , Naoki Yamashita
Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 μm inclusive in the intermediate layer material before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 μm inclusive in the intermediate layer material after brazing heating is at least 1.0×104 pieces/mm2. Further provided is a method for producing the aluminum alloy clad material.
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公开(公告)号：US20180193961A1
公开(公告)日：2018-07-12
申请号：US15742418
申请日：2016-07-08
Applicant: UACJ CORPORATION
Inventor： Taichi Asano , Masaki Harada , Shoei Teshima , Makoto Ando , Wataru Narita , Naoki Yamashita
CPC classification number: B23K35/288 , B23K35/0238 , B23K35/286 , B32B15/016 , B32B15/20 , C22C21/00 , C22C21/02 , C22C21/08 , C22C21/10 , C22C21/14 , C22F1/04 , C22F1/047 , C22F1/053 , F28D1/0325 , F28D9/0025 , F28F21/084 , F28F21/089 , F28F2245/00 , F28F2275/04
Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material and a first brazing filler metal that is clad on one surface or both surfaces of the core material, wherein the core material and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 0.1 μm in the first brazing filler metal before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 2 μm in the first brazing filler metal after brazing heating is at least 300 pieces/mm2. Further provided are a method for producing the aluminum alloy clad material and a heat exchanger employing the aluminum alloy clad material.
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公开(公告)号：US10369665B2
公开(公告)日：2019-08-06
申请号：US14777137
申请日：2014-03-24
Applicant: KOBE STEEL, LTD. , DENSO CORPORATION
Inventor： Takahiro Izumi , Shimpei Kimura , Yuji Shibuya , Shoei Teshima , Hayaki Teramoto , Osamu Hakamata
Abstract: This brazed structure includes a brazing sheet that has been brazed and that comprises: a core material comprising an aluminum alloy which contains 0.3-1.0 mass %, excluding 0.3 mass %, Si, 0.6-2.0 mass %, excluding 0.6 mass %, Mn, 0.3-1.0 mass %, excluding 0.3 mass %, Cu, and 0.15-0.5 mass %, excluding 0.15 mass %, Mg, with the remainder comprising Al and unavoidable impurities, and has an average crystal grain diameter of 50 μm or larger and in which an Mg—Si intermetallic compound and an Al—Mg—Si—Cu intermetallic compound account for 40% or less of the grain boundaries; and, clad to the core material, a brazing material comprising an Al—Si alloy.
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公开(公告)号：US10286496B2
公开(公告)日：2019-05-14
申请号：US15129666
申请日：2015-02-09
Applicant: Kobe Steel, Ltd. , DENSO CORPORATION
Inventor： Shimpei Kimura , Akihiro Tsuruno , Takahiro Izumi , Yuji Shibuya , Hayaki Teramoto , Shoei Teshima , Manabu Hasegawa , Michiyasu Yamamoto
Abstract: A brazing sheet formed of an aluminum alloy and exhibiting excellent post-brazing strength, corrosion resistance and brazability with a thickness of less than 200 μm is provided. The brazing sheet includes a core layer, a filler layer of an Al—Si based alloy on one side of the core layer, and a sacrificial layer on the other side of the core layer. The core layer includes more than 1.5 mass % and 2.5 mass % or less of Cu, 0.5 mass % to 2.0 mass % of Mn, Al, and inevitable impurities. The sacrificial layer includes 2.0 mass % to 7.0 mass % of Zn, more than 0.10 mass % and 3.0 mass % or less of Mg, Al, and inevitable impurities. The filler layer and the sacrificial layer each have a thickness of 15 μm to 50 μm. A total clad rate of the filler layer and the sacrificial layer is equal to or less than 50%.
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公开(公告)号：US11002498B2
公开(公告)日：2021-05-11
申请号：US14980138
申请日：2015-12-28
Applicant: MITSUBISHI ALUMINUM CO., LTD. , DENSO CORPORATION
Inventor： Shigeki Nakanishi , Shohei Iwao , Masakazu Edo , Hayaki Teramoto , Manabu Hasegawa , Michiyasu Yamamoto , Shoei Teshima
IPC: F28F21/08 , C22C21/10 , C22C21/00 , C22F1/04 , C22F1/053 , C22F1/00 , C21D9/00 , B22D7/00 , B22D21/00
Abstract: An aluminum alloy fin material for a heat exchanger in the present invention comprises an aluminum alloy having a composition containing Mn: 1.2 to 2.0%, Cu: 0.05 to 0.20%, Si: 0.5 to 1.30%, Fe: 0.05 to 0.5%, and Zn: 1.0 to 3.0% by mass and a remainder comprising Al and an unavoidable impurity, further containing one or two or more of Ti: 0.01 to 0.20%, Cr: 0.01 to 0.20% and Mg: 0.01 to 0.20% by mass as desired, and, after heating in brazing, has a tensile strength of 140 MPa or more, a proof stress of 50 MPa or more, an electrical conductivity of 42% IACS or more, an average grain diameter of 150 μm or more and less than 700 μm, and a potential of −800 mV or more and −720 mV or less.
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