MULTI-LAYERED NICKEL-PHOSPHOROUS COATINGS AND PROCESSES FOR FORMING THE SAME
    3.
    发明申请
    MULTI-LAYERED NICKEL-PHOSPHOROUS COATINGS AND PROCESSES FOR FORMING THE SAME 审中-公开
    多层镍 - 磷光涂料及其形成方法

    公开(公告)号:US20090286104A1

    公开(公告)日:2009-11-19

    申请号:US12122060

    申请日:2008-05-16

    IPC分类号: B32B15/18 B05D1/18

    摘要: Multiple layers of nickel phosphorous coatings are formed by electroless plating onto a base metal substrate such as a turbine component. In one embodiment, a first nickel layer metallurgical bonded by a heat treatment process to a surface of the base metal substrate, the first nickel layer containing about 4 to about 6 weight percent phosphorous with the balance being essentially nickel; and a second nickel layer deposited onto the first layer, the second nickel layer containing about 8 to about 12 weight percent phosphorous with the balance being essentially nickel, wherein the first and second layers are formed by electroless plating. In this manner, adhesion is maximized without degrading the properties of the second layer such as corrosion resistance and ductility. Also disclosed are processes for forming the multilayered nickel phosphorus coatings.

    摘要翻译: 多层镍磷涂层通过无电电镀形成在诸如涡轮机部件的基底金属基底上。 在一个实施方案中,通过热处理工艺冶金地结合到贱金属基底的表面的第一镍层,所述第一镍层含有约4至约6重量%的磷,余量基本上为镍; 和沉积到第一层上的第二镍层,第二镍层含有约8至约12重量%的磷,余量基本上为镍,其中第一和第二层通过无电镀形成。 以这种方式,最大限度地发挥粘附性,而不降低第二层的性能,例如耐腐蚀性和延展性。 还公开了形成多层镍磷涂层的方法。

    SEALING OF PINHOLES IN ELECTROLESS METAL COATINGS
    4.
    发明申请
    SEALING OF PINHOLES IN ELECTROLESS METAL COATINGS 审中-公开
    在电镀金属涂层中密封胶体

    公开(公告)号:US20110027576A1

    公开(公告)日:2011-02-03

    申请号:US12510677

    申请日:2009-07-28

    IPC分类号: B32B3/26 B05D3/12

    摘要: The present invention provides a method for sealing pinholes in an electroless metal coating, said method comprising: (a) coating a substrate with an electroless metal coating layer to provide a coated article comprising an electroless metal coating in contact with the surface of the substrate, said electroless metal coating being characterized by the presence of pinhole imperfections which allow fluid communication between the substrate and the environment; (b) applying a layer of a curable epoxy sealant over the electroless metal coating layer and filling the pinhole imperfections; (c) curing the curable epoxy sealant to provide a cured epoxy overcoating layer; and (d) removing a substantial portion of the cured epoxy overcoating layer to provide an article comprising an electroless metal coating which is substantially free of pinhole imperfections allowing fluid communication between the substrate and the environment.

    摘要翻译: 本发明提供了一种密封无电金属涂层中的针孔的方法,所述方法包括:(a)用无电金属涂层涂覆基底,以提供包括与基底表面接触的无电金属涂层的涂覆制品, 所述无电金属涂层的特征在于存在允许衬底和环境之间的流体连通的针孔缺陷; (b)在无电金属涂层上涂一层可固化环氧密封胶并填充针孔缺陷; (c)固化可固化环氧密封剂以提供固化的环氧树脂涂层; 和(d)去除大部分固化的环氧树脂外涂层以提供包含无电金属涂层的制品,其基本上没有针孔缺陷,从而允许衬底和环境之间的流体连通。

    ELECTROLESS NI-COMPOSITE PLATED SUBSTRATE AND METHOD
    5.
    发明申请
    ELECTROLESS NI-COMPOSITE PLATED SUBSTRATE AND METHOD 审中-公开
    电镀镍复合基板和方法

    公开(公告)号:US20130143031A1

    公开(公告)日:2013-06-06

    申请号:US13512813

    申请日:2010-11-24

    IPC分类号: B05D5/00 B32B5/16

    摘要: Methods for coating a substrate with wear resistant particles by electroless nickel (Ni) plating. A method includes immersing the substrate in a bath provided in a cell, the bath having a Ni salt; adding cubic Boron Nitride (cBN) particles having a predetermined size to the bath so as to produce a predetermined concentration of cBN; maintaining the substrate in the bath with the cBN particles for a predetermined time; and removing the substrate, wherein the removed substrate has a coating of cBN and Ni in a first range.

    摘要翻译: 通过无电镀镍(Ni)电镀涂覆耐磨颗粒的基材的方法。 一种方法包括将基底浸入设置在电池中的浴中,该浴具有Ni盐; 向所述浴中加入具有预定尺寸的立方氮化硼(cBN)颗粒以产生预定浓度的cBN; 用cBN颗粒将衬底保持在浴中预定的时间; 并且去除所述基板,其中所述移除的基板在第一范围内具有cBN和Ni的涂层。