Tooling assembly, apparatus and method for poly-crystalline turbine vane thermal barrier coating surface treatment
By using a flow field interference mechanism in the finishing process of thermal barrier coating on multi-section guide vanes, the problem of coating surface inhomogeneity was solved, achieving uniform finishing of the coating and improving the reliability and lifespan of turbine blades.
CN122425601APending Publication Date: 2026-07-21BEIJING GOLDEN WHEEL SPECIAL MACHINE
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING GOLDEN WHEEL SPECIAL MACHINE
- Filing Date
- 2026-03-31
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
During the finishing process, the thermal barrier coating of multi-section guide vanes has the problem of some areas being "un-polished" and some areas being "over-polished", resulting in uneven coating quality and affecting the reliability and life of turbine blades.
Method used
By employing a flow field interference mechanism in the tooling assembly, especially the flow guide rod, located near the inlet side of the multi-section guide vane, the abrasive flow is guided to avoid abrasive accumulation in the throat area, thus achieving a uniform finish.
Benefits of technology
It effectively reduces the surface roughness of the thermal barrier coating, improves the uniformity and gloss effect of the coating, and ensures the reliability and service life of the turbine blades.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122425601A_ABST
Abstract
The application discloses a tool assembly, a device and a method for surface treatment of multiple-guide-vane thermal barrier coating, and relates to the field of precision machining of aero-engine parts. The tool assembly is used in the device for surface treatment of multiple-guide-vane thermal barrier coating, and the tool assembly comprises a tool clamp used for mounting a multiple-guide-vane thermal barrier coating to be treated; and a flow field interference mechanism arranged on the tool clamp, the flow field interference mechanism being close to an air inlet side of the multiple-guide-vane thermal barrier coating and used for generating a flow guiding effect on a medium during polishing treatment of the thermal barrier coating. The application further provides a device and a method for surface treatment of multiple-guide-vane thermal barrier coating, and the device comprises the tool assembly. The application can alleviate the problem of coexistence of the phenomenon of 'non-grinding' in some areas and 'over-grinding' in some areas in the polishing treatment of the thermal barrier coating, and is beneficial to realizing uniform and lossless polishing of the coating.
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