发明名称 |
Repair of HPT schrouds with sintered preforms |
摘要 |
<p>A method for repairing a Ni- or Co- base superalloy gas turbine stationary flowpath shroud. The method comprises providing a superalloy gas turbine stationary flowpath shroud that has previously been in service. The method further comprises preparing a restoration coating for application to the flowpath surface of the shroud by the steps of providing a precursor mixture comprising a higher-melting-point alloy component, a lower-melting-point alloy component, and a fugitive binder. A perform is prepared from the components and pre-sintered into a mildly curved form. The partially densified perform is applied to the flowpath surface and thermally bonded to the flowpath surface, forming a restoration coating.</p> |
申请公布号 |
EP1837104(B1) |
申请公布日期 |
2013.10.16 |
申请号 |
EP20070104589 |
申请日期 |
2007.03.21 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
DASILVA, PAUL A.;BUDINGER, DAVID E.;REVERMAN, JEFFREY J. |
分类号 |
B22F7/06;B23K35/02;B23K35/30;B23P6/00;C22F1/10;F01D5/00;F01D25/00 |
主分类号 |
B22F7/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|