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Gas turbine blade graphene coating thin film and preparation method thereof

A technology of gas turbine blades and graphene, which is applied in the direction of coating, metal material coating process, heating inorganic powder coating, etc., and can solve the problems of insufficient service life of gas turbine blades

Inactive Publication Date: 2020-06-09
远科秦皇岛节能环保科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a gas turbine blade graphene-coated film and a preparation method thereof for the technical problem of insufficient service life of existing aero-engine gas turbine blades

Method used

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  • Gas turbine blade graphene coating thin film and preparation method thereof

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preparation example Construction

[0028] A preparation method for a gas turbine blade graphene coating film, comprising the following steps:

[0029] (1) The prepared graphene coating slurry is ball milled, and after the ball milling is completed, the graphene coating slurry is stirred evenly;

[0030] (2) Sandblasting the gas turbine blades;

[0031] (3) The gas turbine blades after sandblasting are dried with dry air, and then cleaned with chemical reagents;

[0032] (4) Carry out high-temperature disinfection and drying treatment on the cleaned gas turbine blades in a disinfection cabinet, and then carry out process optimization treatment in a drying box;

[0033] (5) Graphene coating slurry is placed in spraying equipment and stirred;

[0034] (6) Gas turbine blades are taken out from the drying box and placed on the mould, and the gas turbine blades are automatically sprayed by spraying equipment with graphene coating slurry, and the gas turbine blades after spraying are dried;

[0035] (7) The gas tur...

Embodiment 1

[0049] Check the vacuum furnace and other process equipment.

[0050] (1) The prepared graphene coating slurry is ball milled, and after two hours of ball milling, the graphene coating slurry is stirred evenly, and the slurry density is detected by a microscope, and the slurry density is ≤8.92mm;

[0051] (2) Select qualified gas turbine blades and perform sandblasting treatment, with a particle size of 80-100mm and a roughness of 2.5mm;

[0052] (3) The gas turbine blades after sandblasting are blown dry with 0.45mpa pressure dry air, and then cleaned with chemical reagents;

[0053] (4) Perform high-temperature disinfection and drying treatment on the cleaned gas turbine blades in a disinfection cabinet, and then perform one-hour process optimization treatment in a drying oven at about 150°C;

[0054] (5) The graphene coating slurry is placed on the spraying equipment and stirred, and the preparation work before the spraying operation is carried out;

[0055] (6) The gas t...

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Abstract

The invention relates to a gas turbine blade graphene coating thin film and a preparation method thereof. By means of the method, after a gas turbine blade is subjected to sand blasting, blow drying,cleaning, high-temperature disinfection drying and process optimization, the gas turbine blade is placed on a mold and is automatically sprayed by spraying equipment through graphene coating slurry, spraying is accumulatively carried out three times, finally vacuum sintering is carried out, and the graphene coating thin film is formed. The gas turbine blade graphene coating thin film prepared through the preparation method of the gas turbine blade graphene coating thin film has the advantages of being resistant to high temperature ablation, resistant to oxidization, resistant to wear and resistant to flushing. Engines of a certain type of a certain institution of AECC Zhuzhou are subjected to long-time test run verification, and a decisive effect is achieved on prolonging the service lifeof the aero-engine.

Description

technical field [0001] The invention relates to the technical field of graphene coatings, in particular to a gas turbine blade graphene coating film and a preparation method thereof. Background technique [0002] Graphene materials are mainly composed of carbon atoms and rare earth oxide atoms. This composite carbon atom protects the common material, enhances the strength of the base material, and forms a super-protective film, thereby changing the thermal insulation coefficient. Graphene coating derived from graphene material is a new type of functional coating, which is widely used in aviation, aerospace, shipbuilding, petrochemical, metallurgy, electronics and other fields. [0003] At present, the application of thermal barrier coatings on engine gas turbine blades mainly adopts two kinds of cold spraying process and thermal spraying process. Since the existing technology cannot meet the general requirements in the preparation process of my country's high-end equipment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/08
CPCC23C24/082
Inventor 闫俊良闫慧斌黄开明王锦涛卢聪明樊国福刘德奇刘勇军孙伟嘉谢昌坦王广勇宋星奇
Owner 远科秦皇岛节能环保科技开发有限公司
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