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Method for preparing antioxidant coating of combustion liner of aeroengine

An anti-oxidation coating, aero-engine technology, applied in the direction of machines/engines, rocket engine devices, coatings, etc.

Active Publication Date: 2010-07-07
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]In the existing technology, the technical effect of the anti-oxidation coating of the aero-engine flame tube needs to be improved. Under the condition that the working condition is the long-term average working temperature of 850°C

Method used

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  • Method for preparing antioxidant coating of combustion liner of aeroengine
  • Method for preparing antioxidant coating of combustion liner of aeroengine
  • Method for preparing antioxidant coating of combustion liner of aeroengine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] A method for preparing an anti-oxidation coating of an aero-engine flame tube. The anti-oxidation coating of the aero-engine flame tube uses Al 2 O 3 ·NiAlW flexible wire and NiAlW flexible wire are used as raw materials for flame spraying; where: the Al 2 O 3 ·The composition and mass percentage of NiAlW flexible wire meet the following requirements: Ni: 30.57%, Al: 12.62%, Cr: 1.52%, W: 0.35%, Mo: 0.36%, Ti: 0.29%, Co: 0.39%, ruby : 46.5%, molding agent: the balance;

[0070] The composition and content of the NiAlW flexible wire meet the following requirements: Ni: 63.80%, Al: 21.3%, Cr: 2.60%, W: 1.0%, Mo: 0.80%, Ti: 0.50%, Co: 0.80%, forming Agent: balance;

[0071] The aforementioned molding agent is silicone rubber.

[0072] In the method for preparing the anti-oxidation coating for the flame tube of the aeroengine, the NiAlW alloy flexible wire is used as the underlying material, and the thickness of the coating is 0.07 mm; the Al 2 O 3 ·NiAlW flexible wire is used as...

Embodiment 2

[0078] The content of this embodiment is basically the same as that of embodiment 1, and the main differences are:

[0079] 1) A preparation method for the anti-oxidation coating of the flame tube of aeroengine, the anti-oxidation coating of the flame tube of the aeroengine uses Al 2 O 3 ·NiAlW flexible wire and NiAlW flexible wire are used as raw materials for flame spraying; where: the Al 2 O 3 ·The composition and mass percentage content of NiAlW flexible wire meet the following requirements: Ni: 30%, Al: 12.5%, Cr: 1.4%, W: 0.15%, Mo: 0.45%, Ti: 0.45%, Co: 0.4%, Ruby : 42, forming agent: margin;

[0080] The composition and mass percentage content of the NiAlW flexible wire meet the following requirements: Ni: 62.0%, Al: 19.50%, Cr: 2.2%, W: 0.5%, Mo: 0.95%, Ti: 0.6%, Co: 0.9% , Forming agent: margin;

[0081] The molding agent is silicone rubber.

[0082] 2) The NiAlW alloy flexible wire is used as the underlying material, and the thickness of the coating is 0.05mm; the Al 2 O 3...

Embodiment 3

[0088] The content of this embodiment is basically the same as that of embodiment 1, and the main differences are:

[0089] 1) A preparation method for the anti-oxidation coating of the flame tube of aeroengine, the anti-oxidation coating of the flame tube of the aeroengine uses Al 2 O 3 ·NiAlW flexible wire and NiAlW flexible wire are used as raw materials for flame spraying; where: the Al 2 O 3 ·The composition and mass percentage content of NiAlW flexible wire meet the following requirements: Ni: 31%, Al: 13%, Cr: 1.9%, W: 0.5%, Mo: 0.2%, Ti: 0.12%, Co: 0.2%, Ruby : 42, molding agent: balance; molding agent is silicone rubber.

[0090] The composition and mass percentage content of the NiAlW flexible wire meet the following requirements: Ni: 64.0%, Al: 21.50%, Cr: 2.8%, W: 1.2%, Mo: 0.45%, Ti: 0.25%, Co: 0.4% , Forming agent: margin;

[0091] The molding agent is silicone rubber.

[0092] 2) The NiAlW alloy flexible wire is used as the underlying material, and the thickness of the...

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Abstract

The invention discloses a method for preparing an antioxidant coating of a combustion liner of an aeroengine, which is characterized by utilizing Al2O3.NiAlW flexible wires and NiAlW flexible wires as raw materials to undergo flame spraying, wherein the Al2O3.NiAlW flexible wires comprise the following components: 29-34% of Ni, 9-14% of Al, 0.9-2.5% of Cr, less than or equal to 1.0% of W, 0.1-0.6% of Mo, 0.1-0.5% of Ti, 0.1-0.6% of Co, 38-54% of ruby and the balance molding agents; and the NiAlW flexible wires comprise the following components: 61.0-67.0% of Ni, 18.0-22.5% of Al, 2.0-4.0% of Cr, less than or equal to 2.0% of W, 0.2-1.2% of Mo, 0.2-1.0% of Ti, 0.2-1.2% of Co and the balance molding agents. The coating prepared by the method has simple and feasible spraying process and high production efficiency, and the method can be widely used for preparing the antioxidant coatings on the surfaces of various parts of various types of engines, wherein the long-term working temperature of the parts is no more than 850 DEG C.

Description

Technical field [0001] The invention relates to a preparation technology using thermal spraying technology, and in particular provides a method for preparing an anti-oxidation coating of an aeroengine flame barrel by using a novel flexible wire. Background technique [0002] In the prior art, the technical effect of the anti-oxidation coating on the flame tube of aero-engines needs to be improved. We require the preparation of a better high-temperature and thermal-corrosion coating, especially under the condition of a long-term average working temperature of 850°C. Summary of the invention [0003] The purpose of the present invention is to provide a method for preparing an anti-oxidation coating for an aeroengine flame tube with better technical effects. [0004] The invention provides a method for preparing an anti-oxidation coating of an aero-engine flame tube, which is characterized in that the anti-oxidation coating of the aero-engine flame tube uses Al 2 O 3 ·NiAlW flexible wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/16C23C4/04F02K9/32F02K9/60F02K9/70C23C4/06C23C4/073C23C4/129
Inventor 方波王璐肇阳李汉运魏明霞杨树林
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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