Corrosion resistant modified Cu-Zn alloy for heat exchanger tubes
    1.
    发明授权
    Corrosion resistant modified Cu-Zn alloy for heat exchanger tubes 失效
    用于热交换器管的耐腐蚀改性Cu-Zn合金

    公开(公告)号:US4674566A

    公开(公告)日:1987-06-23

    申请号:US701726

    申请日:1985-02-14

    IPC分类号: F28F21/08 C22C9/04 F28F19/06

    CPC分类号: C22C9/04 Y10S165/905

    摘要: The present invention relates to a heat exchanger assembly having a plurality of heat exchange fluid passageways formed from a modified copper-zinc alloy. The copper-zinc alloy contains from about 21% to about 39% zinc, from about 1% to about 5% nickel, from about 0.02% to about 1% arsenic and the balance essentially copper. In a preferred embodiment, the copper-zinc alloy consists essentially of from about 25% to about 35% zinc, from about 2.5% to about 3.5% nickel, from about 0.03% to about 0.06% arsenic and the balance essentially copper. The heat exchanger assemblies of the present invention have particular utility as motor vehicle radiators.

    摘要翻译: 本发明涉及具有由改性铜 - 锌合金形成的多个热交换流体通道的热交换器组件。 铜 - 锌合金含有约21%至约39%的锌,约1%至约5%的镍,约0.02%至约1%的砷,余量基本上为铜。 在优选实施方案中,铜 - 锌合金基本上由约25%至约35%的锌,约2.5%至约3.5%的镍,约0.03%至约0.06%的砷和余量基本上由铜组成。 本发明的热交换器组件具有作为机动车辆散热器的特殊用途。

    Copper alloy cleaning process
    2.
    发明授权
    Copper alloy cleaning process 失效
    铜合金清洗工艺

    公开(公告)号:US4361445A

    公开(公告)日:1982-11-30

    申请号:US277762

    申请日:1981-06-26

    IPC分类号: C23G1/00 C23G1/02 C23G1/14

    CPC分类号: C23G1/00

    摘要: A rapid and effective surface cleaning process for copper alloys, particularly copper alloys containing aluminum and other metals tending to form surface coatings of refractory oxides during annealing treatments, consists of treating such alloys or articles fabricated thereof for a short time in a hot aqueous solution of an alkali hydroxide, rinsing with water, and then immersing for a short time in a hot aqueous solution of ferric sulfate, or other ferric salt of a mineral acid, followed by rinsing with water.

    摘要翻译: 铜合金,特别是包含铝和其他金属的铜合金的快速有效的表面清洁方法,其倾向于在退火处理期间形成耐火氧化物的表面涂层,其包括在短时间内将其制造的合金或制品在热水溶液 碱性氢氧化物,用水冲洗,然后短时间浸入硫酸铁或其它无机酸的铁盐水溶液中,然后用水冲洗。