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1. 发明申请

US20070034524A1 Masking techniques for electrochemical stripping 审中-公开
标题翻译：电化学剥离掩模技术
公开(公告)号：US20070034524A1
公开(公告)日：2007-02-15
申请号：US11203055
申请日：2005-08-12
申请人： Curtis Riewe , Brian Griffith
发明人： Curtis Riewe , Brian Griffith
IPC分类号： B23H9/00 , B23P17/00
CPC分类号： C25F5/00 , Y10T29/49229
摘要： A maskant for use in an electrochemical stripping operation is provided. The maskant comprises an electrically conductive member, preferably one formed from a titanium based material, placed about a trailing edge of an airfoil portion of a turbine engine component. A method for removing a coating from a turbine engine component is also provided. The method comprises the steps of placing a maskant formed from an electrically conductive material, preferably a titanium based material, adjacent a trailing edge of an airfoil portion of the component, immersing the turbine engine component and the maskant into a bath, and electrochemically stripping the coating from unmasked portions of the turbine engine component.
摘要翻译：提供了用于电化学剥离操作的掩模剂。掩模剂包括导电构件，优选地由钛基材料形成的导电构件，放置在涡轮发动机构件的翼型部分的后缘周围。还提供了一种用于从涡轮发动机部件移除涂层的方法。该方法包括以下步骤：将由导电材料（优选钛基材料）形成的掩模放置在与部件的翼型部分的后缘相邻的位置，将涡轮发动机部件和掩蔽剂浸入浴中，并电化学剥离从涡轮发动机部件的未遮蔽部分涂覆。

2. 发明申请

US20070116875A1 Strip process for superalloys 审中-公开
标题翻译：超级合金的剥离工艺
公开(公告)号：US20070116875A1
公开(公告)日：2007-05-24
申请号：US11284612
申请日：2005-11-22
申请人： Alan Cetel , Curtis Riewe , Dwayne Braithwaite
发明人： Alan Cetel , Curtis Riewe , Dwayne Braithwaite
IPC分类号： B32B15/20 , C23C16/00
CPC分类号： C23F1/44 , C23C10/02 , C23C10/60 , C23C28/022 , C23C28/023 , C23C28/028 , F01D5/288 , F05D2300/132 , Y10T428/12882
摘要： A process for forming a coated substrate comprises providing a nickel base alloy substrate, depositing a chromium coating onto the nickel base alloy substrate and diffusing chromium from said coating into the substrate, applying a MCrAlY coating onto the nickel base alloy substrate and heat treating the substrate with the deposited chromium and the MCrAlY coating so that chromium diffuses into an outer region of the substrate. Further, in accordance with the present invention, a strip process for removing a coating from a substrate broadly comprises the steps of providing a nickel base alloy substrate having chromium diffused into an outer region and a MCrAlY coating deposited over the substrate with the diffused chromium and removing the MCrAlY coating by immersing the nickel base alloy substrate in an acid solution containing a sulfuric acid-hydrochloric acid mixture in water.
摘要翻译：一种形成涂覆基材的方法包括提供镍基合金基材，在镍基合金基材上沉积铬涂层并将铬从所述涂层扩散到基材中，将MCrAlY涂层施加到镍基合金基底上并热处理基板与沉积的铬和MCrAlY涂层，使得铬扩散到衬底的外部区域。此外，根据本发明，用于从基底去除涂层的剥离方法广泛地包括以下步骤：提供具有扩散到外部区域的铬的镍基合金基底和在基底上沉积有扩散的铬的MCrAlY涂层和通过将镍基合金基材浸入含有硫酸 - 盐酸混合物的水溶液的酸溶液中来除去MCrAlY涂层。

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