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    • 2. 发明授权
    • Application of corrosion protective coating for extending the lifetime of water cooled stator bar clips
    • 应用防腐涂层,延长水冷定子线棒的使用寿命
    • US06969932B2
    • 2005-11-29
    • US10622142
    • 2003-07-18
    • Young Jin KimPaul Joseph MartinianoReed Roeder CordermanScott Andrew WeaverAlan Michael IversenJames Rollins Maughan
    • Young Jin KimPaul Joseph MartinianoReed Roeder CordermanScott Andrew WeaverAlan Michael IversenJames Rollins Maughan
    • H02K3/24H02K9/00H02K15/00H02K9/19
    • H02K9/005H02K3/24H02K3/44H02K15/0025H02K15/0093Y10T29/49009
    • A water-cooled stator bar clip for electrical generators and a method for applying a corrosion-resistant protective coating, preferably Sc, Ti, Cr, Zr, Nb, Mo, Hf, Ta, W, Ni, and Al, and their alloys or oxides to existing stator bar end fittings in order to significantly reduce the possibility of leaks through the brazed connections of the copper stator bar end connections. The coatings can be applied locally using various known physical vapor deposition (“PVD”), chemical vapor deposition (“CVD”) or other direct coating techniques known in the art. For example, the coatings can be applied using ion plasma deposition, sputtering or wire arc techniques (all PVD processes) or by using electroplating, high velocity oxygen free (“HVOF”) deposition, DC arc or electroless plating. Preferably, the coatings are applied either to new stator bar clips or to existing clips in the field using a known pencil coater technique. After being deposited, the metallic coatings form a protective oxide layers over the existing copper brazed joint after being exposed to a water environment, thereby protecting the chemical and structural integrity of the underlying copper brazed joint.
    • 一种用于发电机的水冷式定子棒夹,以及用于施加耐腐蚀保护涂层,优选Sc,Ti,Cr,Zr,Nb,Mo,Hf,Ta,W,Ni和Al及其合金或 氧化物到现有的定子棒端部配件,以便显着地减少通过铜定子棒端部连接的钎焊连接的泄漏的可能性。 涂层可以使用各种已知的物理气相沉积(“PVD”),化学气相沉积(“CVD”)或本领域已知的其它直接涂覆技术进行局部施加。 例如,可以使用离子等离子体沉积,溅射或线弧技术(所有PVD工艺)或通过使用电镀,高速无氧(“HVOF”)沉积,直流电弧或无电镀来施加涂层。 优选地,使用已知的铅笔涂布机技术将涂层施加到新的定子棒夹或现场的现有夹子。 在沉积后,金属涂层在暴露于水环境之后,在现有的铜钎焊接头上形成保护性氧化物层,从而保护下面的铜钎焊接头的化学和结构完整性。
    • 10. 发明授权
    • Apparatus and method for introducing small amounts of refractory elements into a vapor deposition coating
    • 将少量难熔元素引入气相沉积涂层的装置和方法
    • US06849299B2
    • 2005-02-01
    • US10272256
    • 2002-10-16
    • Reed Roeder CordermanMelvin Robert JacksonRichard Arthur Nardi, Jr.
    • Reed Roeder CordermanMelvin Robert JacksonRichard Arthur Nardi, Jr.
    • C23C14/16C23C14/30
    • C23C14/30C23C14/16Y02T50/67
    • A method of introducing small amounts of a refractory element into a vapor deposition coating. A second material (30), containing at least two elements which are desired to be deposited as a coating on a base material, has placed over it a first material (20) substantially comprising such two elements and a refractory element. The first material (20) is adapted to permit transport of the at least two elements in the second material (30) through the first material (20) when the first (20) and second (30) material are in a molten state and in touching contact with the other so as to permit evaporation of the two elements and the refractory element from an exposed surface. Heat is supplied to the first (20) and second (30) materials to permit evaporation of the at least two elements of second material (30) and the refractory element in the first material (20), and the resulting vapors are condensed as a deposit on a base material (50). A particular method of heating is further disclosed to assist in maintaining adequate rates of evaporation for the aforesaid method, wherein the supplied heat is supplied to an inner heated area (91) and a surrounding outer heated area (92) and at least a portion of the inner heated area (91) is heated to a greater temperature than the outer heated area (92).
    • 将少量耐火材料引入气相沉积涂层的方法。 包含至少两个期望作为涂层涂覆在基材上的元件的第二材料(30)已经在其上放置了基本上包含这两个元件和难熔元件的第一材料(20)。 当第一(20)和第二(30)材料处于熔融状态时,第一材料(20)适于允许第二材料(30)中的至少两个元件通过第一材料(20) 与另一个接触,以允许两个元件和耐火元件从暴露的表面蒸发。 将热量供应到第一(20)和第二(30)材料以允许第一材料(20)中的第二材料(30)的至少两个元件和耐火元件蒸发,并且所得到的蒸气被冷凝为 沉积在基材(50)上。 进一步公开了一种特定的加热方法,以有助于为上述方法保持足够的蒸发速率,其中供应的热量被供应到内部加热区域(91)和周围的外部加热区域(92)和至少一部分 内加热区域(91)被加热到比外部加热区域(92)更高的温度。