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    BRAZING SHEET FOR FLUX-FREE BRAZING AND METHOD FOR PRODUCING SAME
    2.
    发明授权
    BRAZING SHEET FOR FLUX-FREE BRAZING AND METHOD FOR PRODUCING SAME 有权

    公开(公告)号：EP2803442B1

    公开(公告)日：2018-10-17

    申请号：EP13735603.6

    申请日：2013-01-11

    申请人： UACJ Corporation

    发明人： SUZUKI, Yoshikazu ,  GOTOU, Akihito ,  YANAGAWA, Yutaka

    IPC分类号： B32B15/01 ,  C22C21/02 ,  C22C21/00 ,  B23K35/02 ,  B23K35/40 ,  B23K35/28

    CPC分类号： B23K35/0238 ,  B23K35/0233 ,  B23K35/286 ,  B23K35/40 ,  B32B15/016 ,  C22C21/00 ,  C22C21/02 ,  Y10T428/12764

    摘要： The present invention is a brazing sheet for flux-free brazing, which is composed of a core material, a brazing material that is disposed on at least one surface of the core material, and a thin skin material that is disposed on the brazing material. This brazing sheet for flux-free brazing is characterized in that: the core material is formed of an aluminum alloy that has a higher melting point than the brazing material; the brazing material is formed of an Al-Si-Mg system alloy and has a thickness of 25-250 µm; the thin skin material is formed of an aluminum alloy that has a higher melting initiation temperature than the brazing material and contains substantially no Mg, and has a thickness of 5-30 µm; and the content of oxides present at the interface between the brazing material and the thin skin material is 0.1 ppm or less in terms of a weight ratio based on the whole cladding material. The present invention provides a brazing sheet for flux-free brazing, which has a thin skin material, with uniform brazability, and enables stable bonding.

    Aluminium heat exchanger excellent in corrosion resistance
    3.
    发明授权
    Aluminium heat exchanger excellent in corrosion resistance 有权

    公开(公告)号：EP1484571B1

    公开(公告)日：2018-07-25

    申请号：EP04013142.7

    申请日：2004-06-03

    申请人： UACJ Corporation

    发明人： Miyachi, Haruhiko ,  Hasegawa, Yoshiharu ,  Makihara, Masamichi ,  Itoh, Yasunaga ,  Yamashita, Naoki ,  Fukuda, Toshihiko

    IPC分类号： F28F19/06 ,  F28F21/08 ,  F28F1/12

    CPC分类号： F28F19/06 ,  F28F1/126 ,  F28F21/084 ,  F28F21/089 ,  Y10S165/905 ,  Y10T428/12764 ,  Y10T428/31678

    摘要： A heat exchanger which is assembled by brazing an aluminum fin material (1) to the outer surface (3) of an aluminum tube material (2) formed by bending a sheet material, in particular, an aluminum heat exchanger which can be suitably used as an automotive heat exchanger such as a condenser or evaporator. The tube material is formed of a two-layer clad sheet which includes a core material (4) and an Al-Zn alloy layer clad (3) on the core material (4). The Al-Zn alloy layer is clad on the outer surface of the tube material and brazed to the aluminum fin material. The potential of the Al-Zn alloy layer in normal corrosive solution is 100 mV or more lower than the potential of the core material in the normal corrosive solution. The potential of the Al-Zn alloy layer in the normal corrosive solution is lower than the potential of the core material in high-concentration corrosive water. The normal corrosive solution refers to an aqueous solution containing 10 g/l of NaCl and 0.3 g/l of Na 2 SO 4 , and the high-concentration corrosive water refers to an aqueous solution in which the NaCl concentration is increased by 30 times by concentrating the above aqueous solution.

    BRAZING SHEET FOR FLUX-FREE BRAZING AND METHOD FOR PRODUCING SAME
    8.
    发明公开
    BRAZING SHEET FOR FLUX-FREE BRAZING AND METHOD FOR PRODUCING SAME 审中-公开
    LÖTBLECHZUM FLUSSMITTELFREIENLÖTENUND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2803442A4

    公开(公告)日：2016-03-09

    申请号：EP13735603

    申请日：2013-01-11

    申请人： UACJ CORP

    发明人： SUZUKI YOSHIKAZU ,  GOTOU AKIHITO ,  YANAGAWA YUTAKA

    IPC分类号： B23K35/22 ,  B23K35/02 ,  B23K35/14 ,  B23K35/28 ,  B23K35/40 ,  C22C1/04 ,  C22C21/00 ,  C22C21/02

    CPC分类号： B23K35/0238 ,  B23K35/0233 ,  B23K35/286 ,  B23K35/40 ,  B32B15/016 ,  C22C21/00 ,  C22C21/02 ,  Y10T428/12764

    摘要： The present invention is a brazing sheet for flux-free brazing, which is composed of a core material, a brazing material that is disposed on at least one surface of the core material, and a thin skin material that is disposed on the brazing material. This brazing sheet for flux-free brazing is characterized in that: the core material is formed of an aluminum alloy that has a higher melting point than the brazing material; the brazing material is formed of an Al-Si-Mg system alloy and has a thickness of 25-250 µm; the thin skin material is formed of an aluminum alloy that has a higher melting initiation temperature than the brazing material and contains substantially no Mg, and has a thickness of 5-30 µm; and the content of oxides present at the interface between the brazing material and the thin skin material is 0.1 ppm or less in terms of a weight ratio based on the whole cladding material. The present invention provides a brazing sheet for flux-free brazing, which has a thin skin material, with uniform brazability, and enables stable bonding.

    摘要翻译： 本发明是用于无磁钎焊的钎焊片，其由芯材料，设置在芯材的至少一个表面上的钎焊材料和设置在钎焊材料上的薄表皮材料构成。 该无钎焊钎焊用钎焊片的特征在于：芯材由熔点比钎料高的铝合金形成; 钎焊材料由Al-Si-Mg系合金形成，厚度为25〜250μm; 薄的表皮材料由熔融起始温度高于钎焊材料的铝合金形成，并且基本上不含Mg，厚度为5-30μm; 存在于钎焊材料与薄皮材料之间的界面处的氧化物的含量相对于整个包覆材料的重量比为0.1ppm以下。 本发明提供了一种无助焊钎焊的钎焊片，其具有薄的表皮材料，具有均匀的钎焊性，并且能够稳定地结合。

    CLAD SHEET ALLOYS FOR BRAZING APPLICATIONS
    9.
    发明公开
    CLAD SHEET ALLOYS FOR BRAZING APPLICATIONS 有权
    KASCHIERTE BLECHLEGIERUNGENFÜRLÖTANWENDUNGEN

    公开(公告)号：EP2969376A1

    公开(公告)日：2016-01-20

    申请号：EP14716498.2

    申请日：2014-03-14

    申请人： Novelis, Inc.

    发明人： MAROIS, Pierre Henri

    IPC分类号： B23K35/28 ,  B23K35/02 ,  B32B15/01 ,  C22C21/02 ,  F28F21/08

    CPC分类号： B23K35/0233 ,  B23K1/0012 ,  B23K1/19 ,  B23K35/0238 ,  B23K35/28 ,  B23K35/286 ,  B23K35/288 ,  B23K2203/10 ,  B32B15/016 ,  C22C21/02 ,  F28F21/084 ,  F28F21/089 ,  F28F2275/04 ,  Y10T428/12764

    摘要： This application discloses a multilayer aluminum material comprising an aluminum alloy core and aluminum alloy cladding, wherein the aluminum alloy cladding contains 0.1-1.0 wt % Cu, 0.1-0.5 wt % Fe, 0.1-1.0 wt % Mn, 3-15 wt % Si, 0.005-0.15 wt % Ti and >3-≦7 wt % Zn, remainder Al. The aluminum alloy cladding can also optionally contain one or more of 0.001-0.3 wt % Mg, 0.001-0.01 wt % Ni or 0.001-0.05 wt % of at least one of Sr, Ca or Na. A process for producing the material is also described. The material can be produced in sheet form and is suitable for brazing application. The metal forms fabricated from the multilayer aluminum material by a process comprising brazing steps are also described.

    摘要翻译： 该申请公开了一种具有铝合金芯和铝合金包层的多层铝材料，其中铝合金包层含有：1.0重量％的Cu，和nlE; 0.5重量％的Fe，nlE; 1.0重量％的Mn，nlE; 15重量％ Si，nlE; 0.15wt％Ti，nlE; 7wt％Zn和Sr或Na中的至少一个，余量为Al。 铝合金包层还可以含有一种或多种镍，0.2wt％Mg或者nlE; 0.05wt％的Ni。 还公开了一种生产该材料的方法。 该材料可以片状生产，适用于钎焊应用。 还公开了通过包括钎焊步骤的方法由多层铝材料制成的金属形式。

    Aluminum alloy brazing sheet and method for producing the same
    10.
    发明公开
    Aluminum alloy brazing sheet and method for producing the same 审中-公开
    铝合金钎焊板及其制造方法

    公开(公告)号：EP2835211A3

    公开(公告)日：2015-12-30

    申请号：EP14002540.4

    申请日：2014-07-25

    申请人： UACJ Corporation

    发明人： Itoh, Yasunaga ,  Yamayoshi, Tomoki

    IPC分类号： B23K35/00 ,  B23K1/00 ,  B23K1/20 ,  F28F21/08 ,  C22C21/06 ,  C22C21/02 ,  B23K35/28 ,  B23K35/02 ,  B23K35/38 ,  B23K101/14 ,  B32B15/01

    CPC分类号： B23K35/286 ,  B23K1/00 ,  B23K1/0012 ,  B23K1/20 ,  B23K1/206 ,  B23K35/00 ,  B23K35/0238 ,  B23K35/38 ,  B23K2101/14 ,  B32B15/016 ,  C22C21/00 ,  C22C21/02 ,  C22C21/06 ,  F28F21/084 ,  F28F21/089 ,  Y10T428/12764

    摘要： An aluminum alloy brazing sheet makes it possible to implement a stable brazability equal to that achieved by brazing using flux even if an etching treatment is not performed on the brazing site. The aluminum alloy brazing sheet is used to braze aluminum in an inert gas atmosphere without using flux, the brazing sheet including a core material and a filler metal, one side or each side of the core material being clad with the filler metal, the core material being formed of an aluminum alloy that includes 0.2 to 1.3 mass% of Mg, the filler metal including 6 to 13 mass% of Si and 0.004 to 0.1 mass% of Li, with the balance being aluminum and unavoidable impurities, a surface oxide film having been removed from the brazing sheet, and an oil solution that decomposes when heated at 380°C or less in an inert gas having been applied to the brazing sheet.

    摘要翻译： 即使不在钎焊部位进行蚀刻处理，铝合金钎焊片也可以实现与通过使用助熔剂进行钎焊而实现的相同的稳定的钎焊性。 该铝合金钎焊片被用于在不使用助熔剂的情况下在惰性气体气氛中钎焊铝，该钎焊片包括芯材和填充金属，芯材的一侧或两侧包覆有填充金属，芯材 由含有Mg：0.2〜1.3质量％，Si：6〜13质量％，Li：0.004〜0.1质量％，余量由铝和不可避免的杂质构成的铝合金形成，所述表面氧化膜 从硬钎焊片材上除去，并且在已施加到硬钎焊片材上的惰性气体中在380℃以下加热时分解的油溶液。