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    • 8. 发明申请
    • Nanostructured alloy coated threaded metal surfaces and methods of producing same
    • 纳米结构合金涂层螺纹金属表面及其制造方法
    • US20100096850A1
    • 2010-04-22
    • US11590241
    • 2006-10-31
    • Christopher A. SchuhPablo A. Castro
    • Christopher A. SchuhPablo A. Castro
    • F16L25/00F16B39/00C25C1/00
    • C25D7/10C25D5/14C25D5/18C25D15/02
    • A method for protecting a threaded metal joint from galling and corrosion includes providing a nanocrystalline coating on the metal surface. The nanocrystalline coating can include a solid or liquid lubricant to protect against wear. Threaded metal joint surfaces coated with the nanocrystalline coating can resist galling under high pressure and high torque, even after several fastening and unfastening operations and also over a long period of time. Protection from corrosion is also provided by the nanocrystalline coating. The method and nanocrystalline coating provide metal surfaces with both lubrication and protection against corrosion. Problems such as removal or leakage, which are associated with protective compounds that use oils, are avoided. The nanocrystalline coatings may be layers of the same material, or layers of differing materials, such as layers with lubricating particles dispersed throughout, and layers without lubricating particles. Such coatings may provide reduced wear, friction, corrosion and galling. Such coated threaded articles are very useful in messy and dirty environments, such as oil production and oil handling industries.
    • 用于保护螺纹金属接头免受磨损和腐蚀的方法包括在金属表面上提供纳米晶体涂层。 纳米晶体涂层可以包括固体或液体润滑剂以防止磨损。 涂覆有纳米晶体涂层的螺纹金属接头表面即使经过多次紧固和松开操作,也可长时间在高压力和高扭矩下可以抵抗磨损。 纳米晶体涂层也提供了防腐蚀。 该方法和纳米晶体涂层为金属表面提供润滑和防腐蚀。 避免与使用油的保护性化合物相关的诸如去除或渗漏的问题。 纳米晶体涂层可以是相同材料或不同材料的层的层,例如具有分散在其中的润滑颗粒的层,以及没有润滑颗粒的层。 这样的涂层可以减少磨损,摩擦,腐蚀和磨损。 这种涂层螺纹制品在混乱和肮脏的环境中非常有用,例如石油生产和油处理行业。
    • 10. 发明申请
    • Method for producing alloy deposits and controlling the nanostructure thereof using negative current pulsing electro-deposition
    • 使用负电流脉冲电沉积法生产合金沉积物并控制其纳米结构的方法
    • US20090057159A1
    • 2009-03-05
    • US12231918
    • 2008-09-08
    • Andrew J. DetorChristopher A. Schuh
    • Andrew J. DetorChristopher A. Schuh
    • C25D3/56
    • C25D5/18C25D3/56Y10T428/12493Y10T428/12771Y10T428/12806
    • Bipolar current electrodeposits a nanocrystalline grain size. Polarity Ratio relates the absolute value of time integrated amplitude of negative polarity and positive polarity current. Grain size can be controlled in alloys of two or more components, one of which being a metal, and one of which being most electro-active. Typically the more electro-active material is preferentially lessened in the deposit during negative current. The deposit is relatively crack and void free. Grain size is typically a function of deposit composition, which is typically a function of Polarity Ratio. Specified grain size can be achieved by selecting a corresponding Polarity Ratio. Coatings can be in layers, each having a grain size, which can vary layer to layer and also in a graded fashion. A finished article may be built upon a substrate of electro-conductive plastic, or metal, including steels, aluminum, brass. The substrate may remain, or be removed.
    • 双极电流电沉积纳米晶粒度。 极性比与负极性和正极性电流的时间积分幅度的绝对值相关。 可以以两种或多种组分的合金来控制晶粒尺寸,其中一种是金属,其中一种是大多数电活性的。 通常在负电流期间,沉积物中优先减少更多的电活性材料。 沉积物相对破裂和无空隙。 晶粒尺寸通常是沉积物组成的函数,其通常是极性比的函数。 可以通过选择相应的极性比来实现指定的粒度。 涂层可以是层,每层具有粒度,其可以一层到另一层也可以分级地变化。 成品可以建立在导电塑料或金属的基底上,包括钢,铝,黄铜。 衬底可以保留或被移除。