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Coated flange bolt hole and methods of forming the same

一种法兰螺栓、法兰的技术，应用在用于弹性流体的泵送装置的部件、液体燃料发动机、机器/发动机等方向，能够解决不能消除部件形成坑的倾向等问题

Active Publication Date: 2019-11-15
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this method works well for reconditioning, reconditioning does not eliminate the tendency of the part to form pits in the next operating cycle, so reconditioning must be repeated when pits reappear

Method used

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  • Coated flange bolt hole and methods of forming the same
  • Coated flange bolt hole and methods of forming the same
  • Coated flange bolt hole and methods of forming the same

Examples

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Embodiment Construction

[0021] Reference will now be made in detail to the embodiments of the present invention, more than one example of which is illustrated in the accompanying drawings. Each example is provided by way of explaining the invention, and should not limit the invention. In fact, it is obvious to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the present invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield yet another embodiment. Therefore, the present invention is intended to cover these modifications and variations that fall within the scope of the appended claims and their equivalents.

[0022] In the present disclosure, when a layer is described as being "on" or "over" another layer or substrate, it should be understood that these layers may be in direct contact with each other or have another layer or featur...

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Abstract

Methods for repairing flange bolt holes and the resulting flange bolt holes are provided. The methods and products include the incorporation of a coating system comprising a corrosion resistant layer,which can be formed by resistance plug welding, slurry or sol-gel processing, or thermal / cold spray processing. The corrosion resistant layer can be a super alloy or ceramic material and is differentthan the base material of the flange bolt hole. Corrosion of the flange bolt hole can be reduced or prevented from occurring with the use of the coating system.

Description

Technical field [0001] The embodiments of the present invention generally relate to repairing corroded flanges, particularly to repairing flange bolt holes of aviation gas turbine engines. Background technique [0002] Gas turbine engines usually include a compressor for compressing air. The compressor includes a series of blades that rotate around a shaft. The compressed air is mixed with fuel and conducted to the combustor, where the mixture is ignited in the combustion chamber to generate hot combustion gas. The combustion gas is conducted to the turbine. The turbine section of a gas turbine engine includes a rotor shaft and one or more turbine stages. Each turbine stage is equipped with a shaft-mounted or otherwise carried turbine disk (or rotor) and installed to and radially from the periphery of the disk. Extended turbine blades. Turbine assemblies generally generate rotating shaft power by expanding hot compressed gas produced by fuel combustion. Gas turbine buckets o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/28F01D25/00
CPCF01D25/007F01D25/243F05D2230/80F05D2230/311F04D29/644F04D29/522B23P6/007
Inventor 巴拉·斯里尼瓦桑·帕塔萨拉蒂古鲁普拉萨德·孙达拉扬埃文·贾勒特·多利莱昂纳多·阿杰德斯塔金
Owner GENERAL ELECTRIC CO