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NiCrAlY anti-oxidation coating spraying method for turbine blade

An anti-oxidation coating, turbine blade technology, applied in blade supporting elements, pressure inorganic powder coating, engine components, etc., can solve the problem of coating peeling, blade oxidation, and difficulty in ensuring the coating quality of aero-engine turbine blades. and other problems, to achieve the effect of convenient operation, simple processing method, and preventing large area or partial loss of the coating.

Pending Publication Date: 2022-04-12
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aero-engine products are often applied with coatings. At present, the airfoils of the turbine blades that our company undertakes to manufacture adopt anti-oxidation NiCrAlY coatings. The coating quality of the turbine blades of aero-engines is prone to coating peeling and blade oxidation

Method used

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  • NiCrAlY anti-oxidation coating spraying method for turbine blade
  • NiCrAlY anti-oxidation coating spraying method for turbine blade
  • NiCrAlY anti-oxidation coating spraying method for turbine blade

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Embodiment Construction

[0026] The technical scheme of the present invention is further described below, but the scope of protection is not limited to the description.

[0027] Such as figure 1 The spraying process shown mainly includes the processes of oiling, protection, sand blasting, preheating, spraying, cleaning and visual inspection.

[0028] Step S1, degreasing:

[0029] Clean the sprayed surface with clean industrial gasoline and other organic solvents for degreasing, and blow dry or air dry with clean compressed air.

[0030] Step S2, protect:

[0031] Protect the non-sprayed surface with protective clamps or JD-22 pressure-sensitive tape according to the requirements of the design drawings or process charts.

[0032] Step S3, sand blowing:

[0033] ①According to the shape and thickness of the part, choose 24#~80# white corundum sand, and the sand must be clean. Blowing parts according to image 3 shown in .

[0034] ② Sand blowing wind pressure is generally 0.3MPa ~ 0.5MPa, sand blo...

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Abstract

A NiCrAlY anti-oxidation coating spraying method for a turbine blade comprises the processes of oil removal, protection, sand blowing, preheating, spraying, cleaning and appearance inspection, through implementation of the NiCrAlY anti-oxidation coating spraying method, the problems that in a common spraying mode, the coating spraying quality is difficult to guarantee, and the phenomena of coating falling and blade oxidation are likely to occur are well solved, the machining method is simple, and the cost is low. The operation is convenient, stable and reliable; meanwhile, in the spraying process of the anti-oxidation NiCrAlY coating, the non-spraying face of the turbine blade is protected, one-time spraying is achieved on a part base body, large-area or local chipping of the coating is prevented, and in addition, the invention further provides an appearance inspection method for the spraying quality.

Description

technical field [0001] The invention belongs to the technical field of aero-engine manufacture, and in particular relates to a NiCrAlY oxidation-resistant coating spraying method for turbine blades. Background technique [0002] Aero-engine products are often applied with coatings. At present, the airfoils of the turbine blades that our company undertakes to manufacture adopt anti-oxidation NiCrAlY coatings. The coating quality of aero-engine turbine blades is prone to coating peeling and blade oxidation. Therefore, need badly to provide a kind of NiCrAlY anti-oxidation coating spraying method aimed at turbine blade. Contents of the invention [0003] In order to solve the above technical problems, the invention provides a NiCrAlY anti-oxidation coating spraying method for turbine blades. [0004] The present invention is achieved through the following technical solutions. [0005] A kind of NiCrAlY anti-oxidation coating spraying method for turbine blade provided by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/04F01D5/28
Inventor 惠畅万治清张娟李昌唐杰谢敏燕顾伟张江峰姚伟王玉学
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD