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Method for removing sulfide corrosion layer on surface of blade by arc spot plasmas

A sulfide corrosion and plasma technology, used in design optimization/simulation, special data processing applications, etc., can solve the problems of non-reusable parameters, lack of data support, difficult operation, etc., to achieve strong practicability, large workload, Easy-to-use effects

Pending Publication Date: 2021-01-22
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the lack of such research at home and abroad and the lack of data support during implementation, the process parameters can only be obtained through experiments one after another, and the obtained parameters cannot be reused, the operation is difficult, the workload is large, and the efficiency is low.

Method used

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  • Method for removing sulfide corrosion layer on surface of blade by arc spot plasmas
  • Method for removing sulfide corrosion layer on surface of blade by arc spot plasmas
  • Method for removing sulfide corrosion layer on surface of blade by arc spot plasmas

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Embodiment Construction

[0027] The following implementation process will further illustrate the present invention in order to better illustrate the advantages and characteristics of the present invention.

[0028] The purpose of the present invention is to provide a clean, efficient and practical method for removing the sulfide corrosion layer on the surface of the compressor blade of the helicopter engine. In order to achieve the above goals, the method for determining the removal parameters of the arc spot plasma device is as follows:

[0029] 1. Measure the surface vulcanized layer thickness d from the helicopter engine compressor blade containing the sulfide corrosion layer; the measurement method of the vulcanized layer thickness d can be adopted: take the section perpendicular to the vulcanized layer as the detection surface, use scanning electron microscope or metallographic The microscope measures the thickness of the cross-section of the sulfide corrosion layer through the calibrated scale; ...

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Abstract

The invention discloses a method for removing a sulfide corrosion layer on the surface of a blade by using arc spot plasmas, which comprises the following steps of: measuring the thickness of a surface vulcanization layer on a helicopter engine compressor blade containing the sulfide corrosion layer, and substituting the thickness of the vulcanization layer into a removal parameter determination model provided by the invention to obtain a removal parameter, and removing a sulfide corrosion layer on the surface of the blade by using an arc spot plasma device. The optimal process parameters of the arc spot plasma device are determined by utilizing the thickness of the vulcanization layer on the surface of the blade, the economic benefit is high, and the operability is high.

Description

technical field [0001] The invention belongs to the field of cleaning corrosion layers on alloy surfaces, and in particular relates to a method for removing sulfide corrosion layers on blade surfaces by using arc spot plasma. Background technique [0002] When helicopter engine compressor blades are in service, they are exposed to high temperature, high pressure, and high-speed airflow for a long time. The flying height of civil helicopters is about 2-4km, and the flying height of military helicopters can reach about 6km, while our country's Zhi-18 military helicopters even break through the flying height of more than 9km. At such high altitudes, the air contains various sulfur compounds such as SO 2 , SO 3 、H 2 S, sulfuric acid mist, etc., under the combined effects of wear and fatigue, sulfide will corrode the surface of the blade, forming a layer of sulfide corrosion layer. The existence of corrosion layer will affect the quality of remanufactured products, so it need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCG06F30/20Y02T90/00
Inventor 杜晓东巫振伟陶思友孙建
Owner HEFEI UNIV OF TECH
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