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    • 7. 发明申请
    • Gas distributor for vapor coating method and container
    • 气体分布器用于蒸镀法和容器
    • US20040062865A1
    • 2004-04-01
    • US10671193
    • 2003-09-25
    • Gary E. WheatTerri K. BrownRichard L. SchmidtEdward J. Cove
    • C23C016/06
    • C23C16/45508C23C10/06C23C16/12C23C16/4488C23C16/455C23C16/45563C23C16/45591
    • A gas distributor suitable for introducing a carrier gas at the top of a coating container used to provide a metallic coating on articles. The gas distributor includes a gas inlet and a gas outlet head in communication with the gas inlet for receiving a flow of gas from the gas inlet. A plurality of gas outlets through which the gas flow exits as a gas stream are spaced along the peripheral surface of the gas outlet head. A plurality of gas deflectors, each proximate to one of the gas outlets, at least initially direct the gas stream exiting the gas outlet in at least a generally centripetal path. This gas distributor can be used in vapor coating apparatus having a coating container, at least one holder for each article to be coated positioned within the coating container and below the gas outlet head of the gas distributor and at least one holder for the source of the metallic coating positioned within the coating container and below the gas outlet head of the gas distributor. A method is also provided for introducing the carrier gas as a plurality of carrier gas streams proximate the top of the coating container so that each carrier gas stream flows at least initially in at least a generally centripetal path, as well as a method for coating the articles with a metallic coating in the coating container.
    • 适用于在用于在物品上提供金属涂层的涂层容器顶部引入载气的气体分配器。 气体分配器包括与气体入口连通的气体入口和气体出口头,用于从气体入口接收气体流。 气流作为气流离开的多个气体出口沿气体出口头的外周表面间隔开。 多个气体导流器,每个靠近一个气体出口,至少最初引导在至少大致向心的路径中离开气体出口的气流。 这种气体分配器可用于具有涂层容器的蒸气涂覆装置中,每个用于待涂覆的物品的至少一个保持器定位在涂覆容器内并位于气体分配器的气体出口头部下方,以及至少一个用于 金属涂层位于涂层容器内并位于气体分配器的气体出口头下方。 还提供了一种方法,用于将载气作为接近涂层容器顶部的多个载气流引入,使得每个载气流至少在至少一个大致向心的路径中流动,以及一种涂覆方法 在涂料容器中具有金属涂层的物品。
    • 8. 发明授权
    • Method of controlling thickness and aluminum content of a diffusion aluminide coating
    • 控制扩散铝化物涂层的厚度和铝含量的方法
    • US06334907B1
    • 2002-01-01
    • US09417468
    • 1999-10-13
    • Nripendra N. DasThomas E. MantkowskiJeffrey A. Conner
    • Nripendra N. DasThomas E. MantkowskiJeffrey A. Conner
    • C23C800
    • C23C16/12C23C10/08
    • A process for forming a diffusion aluminide coating on a substrate, such as a component for a gas turbine engine. The process generally entails placing the substrate in a suitable coating chamber, flowing an inert or reducing gas into and through the coating chamber, and then aluminizing the substrate using an aluminizing technique with a substantially constant aluminum activity, such as a vapor phase deposition process. During the aluminizing process, the amount of unreacted aluminum within the coating chamber is controlled by altering the flow rate of the gas through the coating chamber so that a portion of the unreacted aluminum is swept from the coating chamber by the gas. The amount of unreacted aluminum swept from the coating chamber is regulated by metering the gas flow rate in order to control the aluminizing rate and aluminum content of the resulting aluminide coating.
    • 在基底上形成扩散铝化物涂层的方法,例如用于燃气涡轮发动机的部件。 该方法通常需要将基底放置在合适的涂布室中,使惰性或还原性气体流入涂层室并通过涂层室,然后使用具有基本上恒定的铝活性的镀铝技术(例如气相沉积工艺)使基底镀铝。 在镀铝过程中,通过改变通过涂覆室的气体的流速来控制涂覆室内的未反应铝的量,使得一部分未反应的铝被气体从涂覆室扫过。 通过计量气体流速来调节从涂覆室扫过的未反应铝的量,以便控制所得铝化物涂层的镀铝速率和铝含量。
    • 9. 发明授权
    • Platinum aluminide CVD coating method
    • 镀铂铝镀层法
    • US5658614A
    • 1997-08-19
    • US330694
    • 1994-10-28
    • William C. BastaDavid C. PunolaBruce M. Warnes
    • William C. BastaDavid C. PunolaBruce M. Warnes
    • C23C10/02C23C10/14C23C16/12F01D5/28C23C16/00
    • F01D5/288C23C10/02C23C10/14C23C16/12
    • A method of improving the oxidation resistance of a platinum modified aluminide coating formed on a nickel base superalloy substrate, comprises providing a platinum layer on the substrate, heating the substrate in a coating retort to a temperature of at least about 1000.degree. C., forming external of the coating retort a high purity coating gas comprising hydrogen and aluminum trichloride, and introducing the coating gas into the coating retort to contact the heated substrate to form an outwardly grown, single phase [(Ni,Pt)]Al] platinum modified aluminide coating having reduced concentration of at least one of a substrate substitutional alloying element and a surface active tramp element selected from at least one of B, P, and S in said coating as compared to a platinum modified aluminide coating formed at a lower temperature.
    • 一种提高形成在镍基超合金基底上的铂改性铝化物涂层的抗氧化性的方法包括在基底上提供铂层,将基底在涂层蒸煮中加热到至少约1000℃的温度,形成 涂层的外部将包含氢和三氯化铝的高纯度涂层气体蒸煮,并将涂覆气体引入涂层蒸馏器中以接触加热的底物以形成向外生长的单相[(Ni,Pt)] Al]铂改性铝化物 与在较低温度下形成的铂改性铝化物涂层相比,所述涂层中的至少一种基质替代合金元素和选自B,P和S中的至少一种的表面活性杂质元素的浓度降低。