Method for treating a thermally loaded component

a technology for thermally loaded components and components, applied in the direction of machines/engines, mechanical equipment, chemistry apparatus and processes, etc., can solve the problems of increasing the cost of chemical processes, increasing the cost of finishing machining, and local defects, so as to increase the efficiency of the removal process and influence.
US20080178907A1Inactive Publication Date: 2008-07-31ALSTOM TECH LTD
38 Cites 11 Cited by

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
ALSTOM TECH LTD
Publication Date
2008-07-31
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A method for treating a thermally loaded component having a metallic substrate and at least partially coated on an outer side with a protective coating, is provided. The method includes the step of predamaging the protective coating before removing the protective coating from the substrate using dry ice blasting. The predamaging is performed so as to lead to an increase of efficiency of the removal process.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] Priority is claimed to Swiss Patent Application No. CH 00103 / 07, filed Jan. 23, 2007, the entire disclosure of which is incorporated by reference.

[0002] The present invention relates generally to the field of thermal machine, and more particularly to a method for treating a thermally loaded component having a metallic substrate and a protective coating on at least a portion of an outer side.BACKGROUND

[0003] Thermally loaded components of gas turbines, such as stator blades or rotor blades or elements of the associated combustion chamber, which on account of the high operating temperatures are produced from Ni-based alloys, are frequently coated on the surface with a ceramic thermal barrier coating (TBC). When applying these thermal barrier coatings, local defects can occur, which are not acceptable with regard to later application, or which have to be removed for other reasons. If such local defects occur, the whole thermal barrier coating, inclusive of the bonding layer which l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More