发明授权
- 专利标题： Process for removing a coating from a hole in a metal substrate
- 专利标题（中）： 从金属基板的孔中除去涂层的工序
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申请号： US09211484申请日： 1998-12-15
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公开(公告)号： US06267902B1公开(公告)日： 2001-07-31
- 发明人: Thomas Joseph Cartier , D. Sangeeta
- 申请人： Thomas Joseph Cartier , D. Sangeeta
- 主分类号： C23F100
- IPC分类号： C23F100
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.