HIGH-CORROSION-RESISTANT ALUMINUM ALLOY BRAZING SHEET, METHOD OF MANUFACTURING SUCH SHEET, AND CORROSIVE-RESISTANT HEAT EXCHANGER USING SUCH SHEET
    4.
    发明申请
    HIGH-CORROSION-RESISTANT ALUMINUM ALLOY BRAZING SHEET, METHOD OF MANUFACTURING SUCH SHEET, AND CORROSIVE-RESISTANT HEAT EXCHANGER USING SUCH SHEET 有权
    高耐腐蚀铝合金烧结板,制造这种板材的方法和使用这种表面的耐腐蚀热交换器

    公开(公告)号:US20120279694A1

    公开(公告)日:2012-11-08

    申请号:US13261222

    申请日:2010-09-15

    Abstract: ProblemTo provide an aluminum alloy brazing sheet, featuring a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and exhibiting a superior corrosion resistance to an exhaust gas condensate water after the brazing process, a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet.Resolving MeansA high corrosion-resistant aluminum alloy brazing sheet comprises a core material composed of an aluminum alloy, a sacrificial anode material cladded on one surface of the core material, and a filler material composed of an Al/Si-based alloy and cladded on another surface of said core material, and is characterized in that the sacrificial anode material is composed of an aluminum alloy which contains Si falling within a range of 2.5-7.0 mass %, Zn falling a range of 1.0-5.5 mass %, Fe falling within a range of 0.05-1.0 mass %, and which is composed of the balance Al and the inevitable impurities, and that a clad thickness of the sacrificial anode material falling within a range of 25-80 μm. Also, there is provided a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet.

    Abstract translation: 问题提供一种铝合金钎焊片,具有良好的钎焊性能,可防止在钎焊过程中熔融填料在铝合金钎焊片的芯材中的扩散,并且对钎焊后的排气冷凝水表现出优异的耐腐蚀性 工艺,铝合金钎焊片的制造方法和使用该铝合金钎焊片的高耐腐蚀性热交换器。 解决方法高耐腐蚀铝合金钎焊片包括由铝合金构成的芯材,包覆在芯材的一个表面上的牺牲阳极材料和由Al / Si基合金组成的填充材料, 所述芯材的另一表面,其特征在于,所述牺牲阳极材料由铝合金构成,所述铝合金含有Si在2.5〜7.0质量%的范围内,Zn在1.0-5.5质量%的范围内,Fe落入 0.05〜1.0质量%的范围,由余量Al和不可避免的杂质组成,牺牲阳极材料的包层厚度在25〜80μm的范围内。 此外,提供了一种制造铝合金钎焊片的方法和使用该铝合金钎焊片的高耐腐蚀性热交换器。

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