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    • 1. 发明授权
    • Article exhibiting improved resistance to galvanic corrosion
    • 文章表现出改善的抗电腐蚀性
    • US06325138B1
    • 2001-12-04
    • US09258668
    • 1999-02-26
    • Thomas J. GarosshenSandra J. DowneyDaniel P. Gaffaney
    • Thomas J. GarosshenSandra J. DowneyDaniel P. Gaffaney
    • F28F1902
    • F28F19/06C23C26/00C23C30/00
    • An article having a first member formed from a first metal and a second member connected with the first member at a contact area. The second member is formed from a second metal having high reduction reaction kinetics and galvanic corrosion driving force relative the first member, wherein the second metal is more noble than the first metal. A material for substantially eliminating the galvanic corrosion problem by reducing the reduction reaction kinetics of the second metal in the presence of an electrolyte is provided between the first and second metals. In a preferred embodiment, the article is a heat exchanger wherein the first member is a fin collar and the second member a tube and the material for reducing is a coating on the tube has low reduction reaction kinetics relative to copper for reducing corrosion activities between the tube and fin collar.
    • 一种具有由第一金属形成的第一构件和在接触区域与第一构件连接的第二构件的制品。 第二构件由相对于第一构件具有高还原反应动力学和电镀腐蚀驱动力的第二金属形成,其中第二金属比第一金属更加高贵。 在第一和第二金属之间提供用于在电解质存在下通过降低第二金属的还原反应动力学来基本上消除电偶腐蚀问题的材料。 在优选实施例中,制品是热交换器,其中第一构件是翅片套环,并且管和用于还原的材料的第二构件是管上的涂层,具有相对于铜的降低的反应动力学,以减少 管和鳍领。