专利名称：A method of repairing a coating on an article发明人：Tuppen, Stephen John,Clark, Daniel,Wood,
Alan Stanley
申请号：EP09251899.2申请日：20090729公开号：EP2179816A2公开日：20100428
专利附图：
摘要：A method of locally repairing a coating (50) on a gas turbine engine nozzleguide vane (26) or a turbine blade (30, 30B) comprises removing a damaged portion of thecoating (50) from a portion (53) of the article. Any oxidised layer (54) is removed from the
portion (53) of the surface of the article. Material is placed on the portion (53) of thearticle (26, 30, 30B) to form a patch coating (50B). The material is heated to form a patchcoating (50B) on the portion (53) of the article (26,30,30B) and to bond the patch coating(50B) to the portion (53) of the article (26,30,30B) and to the coating surrounding thepatch coating (50B). A high energy beam is impinged on the coating (50) and the highenergy beam is moved from the periphery (60) of the patch coating (50B) to theperiphery (62) of the coating (50) in a pattern (P) to uniformly heat the periphery (60) ofthe patch coating (50B) and the periphery (62) of the coating (50). The advantage is that ahalo effect around the patch coating (50B) is obviated.
申请人：Rolls-Royce plc
地址：65 Buckingham Gate London SW1E 6AT GB
国籍：GB
代理机构：Little, Thomas Andrew
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