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    Aluminum alloy clad sheet for a heat exchanger and its production method
    2.
    发明公开
    Aluminum alloy clad sheet for a heat exchanger and its production method 有权
    Plattiertes AluminiumlegierungsblechfüreinenWärmetauscherund dessen Herstellungsverfahren

    公开(公告)号：EP2085214A1

    公开(公告)日：2009-08-05

    申请号：EP08172737.2

    申请日：2008-12-23

    申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

    发明人： Koshigoe, Fumihiro ,  Ueda, Toshiki ,  Kimura, Shimpei ,  Kinefuchi, Masao ,  Matsumoto, Katsushi ,  Tamura, Eiichi

    IPC分类号： B32B15/01 ,  C22C21/02 ,  C22C21/14 ,  C22F1/04

    CPC分类号： B32B15/016 ,  C22C21/02 ,  C22C21/14 ,  C22F1/04 ,  Y10T428/12764 ,  Y10T428/31504 ,  Y10T428/31678

    摘要： Disclosed herein is an aluminum alloy clad sheet for a heat exchanger including a core layer, a sacrificial layer formed on one surface of the core layer, and a filler layer including an Al-Si based alloy formed on the other surface of the core layer. The core layer includes a predetermined amount of Si, Cu, Mn, Ti, and Mg, the remainder including Al and inevitable impurities, and the sacrificial layer includes a predetermined amount of Si, Mn, and Zn, the remainder including Al and inevitable impurities. The core layer has a crystal grain size after the brazing heat treatment at 595°C for 3 minutes of at least 50 µm and less than 300 µm. The filler layer and the sacrificial layer are defined for their thickness, and the number of intermetallic compounds in the core layer is also defined to a predetermined range. By such constitution, the aluminum alloy clad sheet has improved fatigue life and post-braze strength, high corrosion resistance, and excellent erosion resistance and brazeability.

    摘要翻译： 本发明公开了一种用于热交换器的铝合金包覆板，其包括芯层，在芯层的一个表面上形成的牺牲层和在芯层的另一个表面上形成的包含Al-Si基合金的填充层。 芯层包含预定量的Si，Cu，Mn，Ti和Mg，剩余部分包括Al和不可避免的杂质，牺牲层包含预定量的Si，Mn和Zn，剩余部分包括Al和不可避免的杂质 。 核心层在595℃钎焊热处理3分钟至少50μm且小于300μm之后具有晶粒尺寸。 填充层和牺牲层是为了其厚度而定义的，芯层中的金属间化合物的数量也被限定在预定范围内。 通过这种结构，铝合金复合板具有改善的疲劳寿命和后钎焊强度，高耐腐蚀性和优异的耐冲蚀性和钎焊性。

    Multi-layered sheet of aluminum alloys
    3.
    发明公开
    Multi-layered sheet of aluminum alloys 审中-公开
    Mehrschichtiges Blech aus Aluminiumlegierungen

    公开(公告)号：EP2479303A1

    公开(公告)日：2012-07-25

    申请号：EP11008471.2

    申请日：2009-02-05

    申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

    发明人： Matsumoto, Katsushi ,  Tamura, Eiichi ,  Kinefuchi, Masao ,  Ueda, Toshiki ,  Koshigoe, Fumihiro ,  Kimura, Shimpei

    IPC分类号： C22C21/00 ,  C22F1/04 ,  C22F1/00 ,  F28F19/06 ,  B23K1/00 ,  B23K35/28

    CPC分类号： B32B15/016 ,  B23K1/0012 ,  B23K35/28 ,  B23K35/286 ,  B23K2203/10 ,  C22C21/02 ,  C22C21/04 ,  C22C21/14 ,  C22F1/043 ,  C22F1/057 ,  F28D1/05366 ,  F28F1/126 ,  F28F19/06 ,  F28F21/084 ,  F28F21/089 ,  F28F2275/04 ,  Y10T428/12764

    摘要： The present invention relates to a multi-layered sheet of aluminum alloys, comprising: at least a core layer and a sacrificial layer, being cladded, the core layer having an aluminum alloy composition comprising Si: 0.2 to 1.5 mass%, Cu: 0.2 to 1.2 mass%, Mn: 0.2 to 1.4 mass%, and Ti: 0.03 to 0.3 mass%, respectively, and comprising Fe: 1.0 mass% or less, and optionally comprising one, or two or more of Cr: 0.03 to 0.3 mass%, Zn: 0.2 to 1.0 mass%, Zr: 0.03 to 0.3 mass%, and Mg: 0.5 mass% or less, and the balance being Al and inevitable impurities, and having, as a microstructure after brazing process, a microstructure wherein the mean grain size of the rolling direction in the vertical section parallel with the rolling direction of the core layer is 200 µm or less, and the mean number density of dispersed particles, in which the mean value of centroid diameters observed by a 500-times SEM on the rolling plane of the core layer is 1 µm or more, is 6000 particles/mm 2 or less.

    摘要翻译： 本发明涉及一种多层铝合金板，其特征在于，至少包含芯层和牺牲层，所述芯层具有含有Si：0.2〜1.5质量％，Cu：0.2〜 1.2质量％，Mn：0.2〜1.4质量％，Ti：0.03〜0.3质量％，Fe：1.0质量％以下，Cr：0.03〜0.3质量％ ，Zn：0.2〜1.0质量％，Zr：0.03〜0.3质量％，Mg：0.5质量％以下，余量为Al和不可避免的杂质，作为钎焊后的微观结构， 与芯层的轧制方向平行的垂直截面中的轧制方向的晶粒尺寸为200μm以下，分散粒子的平均密度，其中通过500次SEM观察到的质心直径的平均值 芯层的滚动面为1μm以上，为6000个/ mm 2以下。

    Fillet weld joint and method for gas shielded arc welding
    4.
    发明公开
    Fillet weld joint and method for gas shielded arc welding 有权
    KEHLSCHWEIßNAHTUND VERFAHREN ZUM LICHTBOGENSCHUTZGASSCHWEIENEN

    公开(公告)号：EP2402103A1

    公开(公告)日：2012-01-04

    申请号：EP11005035.8

    申请日：2011-06-21

    申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

    发明人： Suzuki, Reiichi ,  Kinefuchi, Masao ,  Kasai, Ryu

    IPC分类号： B23K9/025 ,  B23K9/173 ,  B23K9/23 ,  B23K31/12 ,  B23K9/09 ,  B23K35/38 ,  B23K35/30 ,  B23K35/40

    CPC分类号： B23K9/025 ,  B23K9/09 ,  B23K9/173 ,  B23K9/23 ,  B23K31/12 ,  B23K35/0266 ,  B23K35/3053 ,  B23K35/383 ,  B23K2203/04 ,  C21D9/50 ,  Y10T403/478

    摘要： A fillet weld joint of steel having high fatigue strength by improving stress concentration without excessively relying on imparting a compressive residual stress to a toe part by welding materials, free of cracking, and excellent in the toughness, and a method for gas shielded arc welding for obtaining the fillet weld joint are provided. In the fillet weld joint, a martensitic transformation starting temperature (Ms point) of a weld metal is 400°C or above and 550°C or below, a value obtained by dividing a toe radius p of a toe part of welding by a sheet thickness t of a base metal (ρ/t) is 0.25 or above, an expression below Ms °C ≤ 375 × ρ / t + 320
    is satisfied, and a crack defect does not exist.

    摘要翻译： 通过提高应力集中度而不过度依赖于通过焊接材料赋予趾部的压缩残余应力，无裂纹和优异的韧性的具有高疲劳强度的钢的焊角接头，以及用于气体保护电弧焊接的方法 提供了角焊缝。 在角焊缝中，焊接金属的马氏体相变开始温度（Ms点）为400℃以上且550℃以下，通过将焊接的趾部的趾半径p除以片材 贱金属的厚度t（Á/ t）为0.25以上，满足Ms°C‰375×Á/ t + 320以下的表现，不存在裂纹缺陷。