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    Method for removing ceramic coatings from component surfaces
    2.
    发明申请
    Method for removing ceramic coatings from component surfaces 失效
    从组件表面去除陶瓷涂层的方法

    公开(公告)号：US20050268942A1

    公开(公告)日：2005-12-08

    申请号：US11155812

    申请日：2005-06-17

    申请人： Howard Farr ,  Keith Betscher ,  Richard Worthing ,  D. Sangeeta ,  Himanshu Vakil ,  Curtis Johnson ,  Thomas Cartier ,  Edward Stokes ,  Heinz Jaster ,  Alexander Allen

    发明人： Howard Farr ,  Keith Betscher ,  Richard Worthing ,  D. Sangeeta ,  Himanshu Vakil ,  Curtis Johnson ,  Thomas Cartier ,  Edward Stokes ,  Heinz Jaster ,  Alexander Allen

    IPC分类号： B08B3/08 ,  B08B3/10 ,  B08B7/00 ,  C23G1/14 ,  C23G1/36 ,  C23G3/00 ,  C23G5/02 ,  C23G5/04

    CPC分类号： B08B7/0021 ,  C23G3/00 ,  C23G5/02 ,  C23G5/04 ,  F01D5/005 ,  F01D5/288

    摘要： Apparatus for stripping ceramic coatings from the surfaces of articles. The apparatus includes a dedicated pressure vessel, such as an autoclave, which is maintained at an elevated temperature. Caustic solution is preheated to a first elevated temperature before injecting it into the autoclave, and the caustic solution is filtered and cooled after use in the autoclave. The articles are stripped of coating by maintaining the articles at an elevated temperature and pressure for a predetermined time. Various options include the use of analytical equipment to maintain the chemistry of the caustic solution and use of a volatile organic solution to prepressurize the autoclave and shorten cycle time. The autoclave is maintained in a nitrogen chamber to minimize the risks associated with volatile components. The articles are transferred to a separate pressure vessel after completion of the stripping operation so that the autoclave used for stripping can be maintained at an elevated temperature, thereby shortening the cycle time for stripping of additional articles.

    摘要翻译： 用于从制品表面剥离陶瓷涂层的装置。 该设备包括保持在高温下的专用压力容器，例如高压釜。 苛性溶液在将其注射到高压釜中之前预热至第一升高温度，苛性碱溶液在使用后过滤并冷却。 通过将制品保持在升高的温度和压力下预定的时间，将制品剥离。 各种选择包括使用分析设备来维持苛性碱溶液的化学性质，并使用挥发性有机溶液对高压釜进行预压缩并缩短循环时间。 将高压釜保持在氮气室中以最小化与挥发性组分相关的风险。 在完成剥离操作之后将物品转移到单独的压力容器中，使得用于汽提的高压釜可以保持在升高的温度，从而缩短用于剥离附加制品的循环时间。

    Fluorescent labeling method and substrate
    3.
    发明授权
    Fluorescent labeling method and substrate 有权

    公开(公告)号：US06607918B2

    公开(公告)日：2003-08-19

    申请号：US09773152

    申请日：2001-02-01

    申请人： John Robert LaGraff ,  James Claude Carnahan ,  D Sangeeta ,  James Anthony Ruud

    发明人： John Robert LaGraff ,  James Claude Carnahan ,  D Sangeeta ,  James Anthony Ruud

    IPC分类号： G01N3320

    CPC分类号： G01N33/20 ,  Y10T436/25

    摘要： A fluorescent probe is applied to bind to a metal oxide on a substrate and the substrate is exposed to an ultraviolet light to identify the metal oxide. A chemical cleaning or stripping solution is selected by combinatorial high throughput screening (CHTS). In the method, an array of regions is defined on a substrate, a candidate cleaning/stripping solution is deposited onto the regions to effect cleaning/stripping of the regions; a fluorescent probe is applied to bind to a metal oxide on the substrate; the substrate is exposed to an ultraviolet light to identify the metal oxide and a product of the cleaning/stripping is evaluated according to the identified metal oxide. An activated metal substrate composition is provided that comprises a metal substrate with a contaminant metal oxide coating and a fluorescent activator bound to the substrate by reaction with the metal oxide coating.

    Apparatus and process to clean and strip coatings from hardware
    7.
    发明授权
    Apparatus and process to clean and strip coatings from hardware 有权
    从硬件清洗和剥离涂层的装置和工艺

    公开(公告)号：US06354310B1

    公开(公告)日：2002-03-12

    申请号：US09425556

    申请日：1999-10-22

    申请人： Howard J. Farr ,  Keith H. Betscher ,  Richard R. Worthing, Jr. ,  D Sangeeta ,  Himanshu B. Vakil ,  Curtis A. Johnson ,  Thomas J. Cartier, Jr. ,  Edward B. Stokes ,  Heinz Jaster ,  Alexander S. Allen

    发明人： Howard J. Farr ,  Keith H. Betscher ,  Richard R. Worthing, Jr. ,  D Sangeeta ,  Himanshu B. Vakil ,  Curtis A. Johnson ,  Thomas J. Cartier, Jr. ,  Edward B. Stokes ,  Heinz Jaster ,  Alexander S. Allen

    IPC分类号： B08B310

    CPC分类号： B08B7/0021 ,  C23G3/00 ,  C23G5/02 ,  C23G5/04 ,  F01D5/005 ,  F01D5/288

    摘要： Apparatus for stripping ceramic coatings from the surfaces of articles. The apparatus includes a dedicated pressure vessel, such as an autoclave, which is maintained at an elevated temperature. Caustic solution is preheated to a first elevated temperature before injecting it into the autoclave, and the caustic solution is filtered and cooled after use in the autoclave. The articles are stripped of coating by maintaining the articles at an elevated temperature and pressure for a predetermined time. Various options include the use of analytical equipment to maintain the chemistry of the caustic solution and use of a volatile organic solution to prepressurize the autoclave and shorten cycle time. The autoclave is maintained in a nitrogen chamber to minimize the risks associated with volatile components. The articles are transferred to a separate pressure vessel after completion of the stripping operation so that the autoclave used for stripping can be maintained at an elevated temperature, thereby shortening the cycle time for stripping of additional articles.

    摘要翻译： 用于从制品表面剥离陶瓷涂层的装置。 该设备包括保持在高温下的专用压力容器，例如高压釜。 苛性溶液在将其注射到高压釜中之前预热至第一升高温度，苛性碱溶液在使用后过滤并冷却。 通过将制品保持在升高的温度和压力下预定的时间，将制品剥离。 各种选择包括使用分析设备来维持苛性碱溶液的化学性质，并使用挥发性有机溶液对高压釜进行预压缩并缩短循环时间。 将高压釜保持在氮气室中以最小化与挥发性组分相关的风险。 在完成剥离操作之后将物品转移到单独的压力容器中，使得用于汽提的高压釜可以保持在升高的温度，从而缩短用于剥离附加制品的循环时间。

    Process for removing a coating from a hole in a metal substrate
    8.
    发明授权
    Process for removing a coating from a hole in a metal substrate 失效
    从金属基板的孔中除去涂层的工序

    公开(公告)号：US06267902B1

    公开(公告)日：2001-07-31

    申请号：US09211484

    申请日：1998-12-15

    申请人： Thomas Joseph Cartier ,  D. Sangeeta

    发明人： Thomas Joseph Cartier ,  D. Sangeeta

    IPC分类号： C23F100

    CPC分类号： C23G1/20 ,  B23P2700/06 ,  F01D5/186 ,  F01D5/288 ,  Y02T50/67 ,  Y02T50/676

    摘要： A method of removing a coating from the surface of a hole in a metal-based substrate is described. The coating is scored on or near the surface of the hole. The substrate is then treated with a coating-removal solution under conditions suitable for removing the coating without damaging the substrate or any intervening bond layer. The coating is often a zirconia-based thermal barrier coating. In such a case, a caustic solution is used to remove the coating within an autoclave. The substrate can be a component of a turbine engine.

    摘要翻译： 描述了从金属基底中孔的表面去除涂层的方法。 涂层在孔的表面上或附近刻痕。 然后在适于除去涂层的条件下用涂层去除溶液处理基材，而不损坏基材或任何中间键合层。 涂层通常是基于氧化锆的热障涂层。 在这种情况下，使用苛性碱溶液去除高压釜内的涂层。 基板可以是涡轮发动机的部件。

    Workscope mix analysis for maintenance procedures
    9.
    发明授权
    Workscope mix analysis for maintenance procedures 有权
    Workscope混合分析维护程序

    公开(公告)号：US06732040B2

    公开(公告)日：2004-05-04

    申请号：US10078902

    申请日：2002-02-19

    申请人： D Sangeeta ,  Adam Timothy Luthman

    发明人： D Sangeeta ,  Adam Timothy Luthman

    IPC分类号： G06F1760

    CPC分类号： G07C3/00 ,  G05B23/0283 ,  Y10T477/40 ,  Y10T477/45

    摘要： Maintenance procedures for an article such as a component of a gas turbine engine are analyzed by defining a set of workscopes that may be performed upon the article, gathering maintenance frequency information for each type of subsequent trailing workscope that may be performed after a prior leading workscope, for a sample set of maintenance procedures, and determining a measured sample workscope mix in the form of a set of trailing workscope probabilities as a function of each leading workscope. A projected workscope mix is projected for a set of maintenance procedures from the measured sample workscope mix. From the projected workscope mix, labor, supplies, and monetary estimates for maintenance procedures may be calculated. Alternative maintenance strategies may be readily compared using this approach.

    摘要翻译： 通过定义可以在物品上执行的一组工作台来分析诸如燃气涡轮发动机的部件的物品的维护程序，收集可以在先前的领先的工作镜之后执行的每种类型的后续拖尾工作镜的维护频率信息 ，用于维护程序的一组样本，并且以一组尾随的工作视野概率的形式确定测量的样本workscope组合作为每个领先的工作视图的函数。 根据测量的样品工作视图组合，预计可以进行一系列维护工作。 根据预计的工作组合，可以计算维护程序的劳动力，用品和货币估计。 使用这种方法可以容易地比较替代维护策略。