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Method for masking holes in element and treating element

An element and masking technology, applied in the field of masking holes in elements, can solve the problems of low efficiency, time-consuming and labor-intensive

Active Publication Date: 2019-08-16
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods usually need to cover the cooling holes one by one, or need to wait for the hole plug to form in the cooling hole, which is very time-consuming and labor-intensive, and the efficiency is low

Method used

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  • Method for masking holes in element and treating element
  • Method for masking holes in element and treating element
  • Method for masking holes in element and treating element

Examples

Experimental program
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example

[0043] Using acrylic epoxy as the masking material, place the Figure 4 The blade to be repaired with a ceramic thermal barrier coating on the surface shown is immersed in the electrophoretic solution containing acrylic epoxy resin particles, used as the cathode, and the other blade is used as the anode, and a voltage of 10-300V is applied to the cathode and the anode for 1~ 30 minutes of electrophoretic deposition, during which particles of acrylic epoxy resin enter the cooling holes of the blade to be repaired. After the electrophoretic deposition is completed, the blade filled with acrylic epoxy resin in the cooling hole is baked at a temperature of about 160° C. for about 20 minutes, so that the acrylic epoxy resin in the cooling hole is formed denser and firmer. structure, so that the cooling hole can be well covered (such as Figure 5 shown). Then sandblasting is performed on the blade with the cooling holes masked to remove the thermal barrier coating on the surface o...

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PUM

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Abstract

The invention relates to a method for masking holes in an element and treating the element. The element comprises one or more holes formed in the surface of the element. The method comprises the stepsthat the element is placed in electrophoresis liquid comprising masking material particles to serve as an electrode, the voltage is applied to the element and a counter electrode of the element, through the electrophoresis effect, the masking material particles in the electrophoresis liquid are deposited into the one or more holes, and thus the one or more holes are masked; the surface of the element is treated; and masking materials in the one or more holes are removed.

Description

technical field [0001] The present invention relates to a method of masking holes in components, and more particularly to a process for masking holes in components and treating components using said method. Background technique [0002] When a gas turbine is used in an aircraft or to generate electricity, it is generally required to run at the highest possible temperature in order to obtain the greatest possible operating efficiency. Because high temperature will damage the metal used to make gas turbine components, various methods are usually used to protect the metal components of the gas turbine, such as rotor blades, stator blades, etc., in order to increase the actual operating temperature of the gas turbine. One of these methods is to provide cooling holes in the element through which cooling air (usually provided by the compressor of the gas turbine) is supplied from the cooler side of the element to the hotter side and directed to the element exposed to the gas turbi...

Claims

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Application Information

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IPC IPC(8): C25D13/00C23G1/00C25F1/02C23C4/02
CPCC25D13/00C23G1/00C25F1/02C23C4/02B05B12/26C25D13/22C23C28/3215C25D13/12F01D5/288F05D2230/90
Inventor 徐晟古彦飞钟大龙
Owner GENERAL ELECTRIC CO